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A sweet victory for sugarcane genomics Nat. Plants (IF 18.0) Pub Date : 2024-04-26 Elizabeth A. Cooper
Owing to its size and complexity, the genome of modern sugarcane has never been previously assembled in its entirety, which leaves it as one of the last remaining major crop species without a reference genome. The newly completed polyploid assembly of an archetypal modern hybrid reveals the complexities of sugarcane’s genetic past, and presents new opportunities for the researchers and breeders invested
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What’s in a name? Nat. Plants (IF 18.0) Pub Date : 2024-04-26 Elizabeth S. Haswell
Unrooted: Botany, Motherhood, and the Fight to Save an Old Science Erin ZimmermanMELVILLE HOUSE BOOKS: 2024. 272 pp. US $28.99. “The first step in wisdom is to know the things themselves … [t]herefore, classification and name-giving will be the foundation of our science.” — attributed to Carolus Linnaeus
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Formations of mycorrhizal symbiosis alter the phenolic heteropolymers in roots and leaves of four temperate woody species New Phytol. (IF 9.4) Pub Date : 2024-04-25 Mengxue Xia, M. Luke McCormack, Vidya Suseela, Peter G. Kennedy, Nishanth Tharayil
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Influence of tree mycorrhizal type, tree species identity, and diversity on forest root‐associated mycobiomes New Phytol. (IF 9.4) Pub Date : 2024-04-25 Bala Singavarapu, Hafeez ul Haq, Friedrich Darnstaedt, Ali Nawaz, Rémy Beugnon, Simone Cesarz, Nico Eisenhauer, Jianqing Du, Kai Xue, Yanfen Wang, Helge Bruelheide, Tesfaye Wubet
Summary Understanding the complex interactions between trees and fungi is crucial for forest ecosystem management, yet the influence of tree mycorrhizal types, species identity, and diversity on tree‐tree interactions and their root‐associated fungal communities remains poorly understood. Our study addresses this gap by investigating root‐associated fungal communities of different arbuscular mycorrhizal
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Mycorrhizal research now: from the micro‐ to the macro‐scale New Phytol. (IF 9.4) Pub Date : 2024-04-25 Francis M. Martin, Maarja Öpik, Ian A. Dickie
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Fungal signals and calcium‐mediated transduction pathways along the plant defence–symbiosis continuum New Phytol. (IF 9.4) Pub Date : 2024-04-25 Marco Giovannetti, Filippo Binci, Lorella Navazio, Andrea Genre
This article is a Commentary on Giovannetti et al., 241: 1393–1400.
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Corrigendum to: Decadal soil warming decreased vascular plant above and belowground production in a subarctic grassland by inducing nitrogen limitation New Phytol. (IF 9.4) Pub Date : 2024-04-25
New Phytologist, 240 (2023), 565–576, doi: 10.1111/nph.19177. Since its publication, the authors of Fang et al. (2023) have identified an error in their article. The Y ordinate scales given in Fig. 5(b,e,g,j,l,o) were incorrectly set during figure compilation. The correct Fig. 5 and its associated legend are given below. We apologize to our readers for this error. Corrected Fig. 5: Fig. 5 Open in figure
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Impact of changing climate on bryophyte contributions to terrestrial water, carbon, and nitrogen cycles New Phytol. (IF 9.4) Pub Date : 2024-04-25 Mandy L. Slate, Anita Antoninka, Lydia Bailey, Monica B. Berdugo, Des A. Callaghan, Mariana Cárdenas, Matthew W. Chmielewski, Nicole J. Fenton, Hannah Holland‐Moritz, Samantha Hopkins, Mélanie Jean, Bier Ekaphan Kraichak, Zoë Lindo, Amelia Merced, Tobi Oke, Daniel Stanton, Julia Stuart, Daniel Tucker, Kirsten K. Coe
SummaryBryophytes, including the lineages of mosses, liverworts, and hornworts, are the second‐largest photoautotroph group on Earth. Recent work across terrestrial ecosystems has highlighted how bryophytes retain and control water, fix substantial amounts of carbon (C), and contribute to nitrogen (N) cycles in forests (boreal, temperate, and tropical), tundra, peatlands, grasslands, and deserts. Understanding
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IRON MAN is a jack of all trades Nat. Plants (IF 18.0) Pub Date : 2024-04-24 Isabel Cristina Vélez-Bermúdez, Wolfgang Schmidt
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Chromatin dynamics and RNA metabolism are double-edged swords for the maintenance of plant genome integrity Nat. Plants (IF 18.0) Pub Date : 2024-04-24 Clara Bergis-Ser, Meega Reji, David Latrasse, Catherine Bergounioux, Moussa Benhamed, Cécile Raynaud
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Down-to-earth drought resistance Nat. Plants (IF 18.0) Pub Date : 2024-04-23
Drought is a serious threat to global food security. In upstream research, crop drought-tolerant traits are often studied under extreme drought conditions, which can seem irrelevant in the eyes of breeders.
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Vacuolar Degradation of Plant Organelles Plant Cell (IF 11.6) Pub Date : 2024-04-24 Marisa S Otegui, Charlotte Steelheart, Wenlong Ma, Juncai Ma, Byung-Ho Kang, Victor Sanchez De Medina Hernandez, Yasin Dagdas, Caiji Gao, Shino Goto-Yamada, Kazusato Oikawa, Mikio Nishimura
Plants continuously remodel and degrade their organelles due to damage from their metabolic activities and environmental stressors, as well as an integral part of their cell differentiation programs. Whereas certain organelles use local hydrolytic enzymes for limited remodeling, most of pathways that control the partial or complete dismantling of organelles rely on vacuolar degradation. Specifically
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Cytochrome b5 diversity in green lineages preceded the evolution of syringyl lignin biosynthesis Plant Cell (IF 11.6) Pub Date : 2024-04-24 Xianhai Zhao, Yunjun Zhao, Qing-yin Zeng, Chang-Jun Liu
Lignin production marked a milestone in vascular plant evolution, and the emergence of syringyl (S)-lignin is lineage-specific. S-lignin biosynthesis in angiosperms, mediated by ferulate 5-hydroxylase (F5H, CYP84A1), has been considered a recent evolutionary event. F5H uniquely requires the cytochrome b5 protein CB5D as an obligatory redox partner for catalysis. However, it remains unclear how CB5D
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Erasing marks: Functions of plant deubiquitylating enzymes in modulating the ubiquitin code Plant Cell (IF 11.6) Pub Date : 2024-04-24 Karin Vogel, Erika Isono
Plant cells need to respond to environmental stimuli and developmental signals accurately and promptly. Ubiquitylation is a reversible posttranslational modification that enables the adaptation of cellular proteostasis to internal or external factors. The different topologies of ubiquitin linkages serve as the structural basis for the ubiquitin code, which can be interpreted by ubiquitin-binding proteins
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Plant viruses and biomolecular condensates: novel perspectives in virus replication strategies New Phytol. (IF 9.4) Pub Date : 2024-04-24 Jared P. May
Biomolecular condensates are dynamic, membraneless, cellular compartments formed by the reversible assembly of proteins, nucleic acids, and other biomolecules (Hyman et al., 2014). The functions of these condensates in cellular processes have been extensively studied in mammalian systems (Yoshizawa et al., 2020), but similar studies in plants have traditionally lagged far behind. However, in the past
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Elevated [CO2] and temperature augment gas exchange and shift the fitness landscape in a montane forb New Phytol. (IF 9.4) Pub Date : 2024-04-24 Derek A. Denney, Pratik Patel, Jill T. Anderson
Summary Climate change is simultaneously increasing carbon dioxide concentrations ([CO2]) and temperature. These factors could interact to influence plant physiology and performance. Alternatively, increased [CO2] may offset costs associated with elevated temperatures. Furthermore, the interaction between elevated temperature and [CO2] may differentially affect populations from along an elevational
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Phenotypic selection patterns in a hybrid zone between two Calceolaria species with contrasting pollinators: insights from field surveys and fitness assessments New Phytol. (IF 9.4) Pub Date : 2024-04-24 Lucía Estévez Manso Galán, Marco Antonetti, Ana C. Ibañez, Alicia N. Sérsic, Andrea A. Cocucci
Summary Hybrid zones provide natural experimental settings to test hypotheses about species divergence. We concentrated on a hybrid swarm in which oil‐collecting bees and flower‐pecking birds act as pollinators of two Calceolaria species. We asked whether both pollinators contributed to flower divergence by differentially promoting prezygotic fitness at the phenotypic extremes that represent parentals
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The structural basis for light harvesting in organisms producing phycobiliproteins Plant Cell (IF 11.6) Pub Date : 2024-04-23 Donald A Bryant, Christopher J Gisriel
Cyanobacteria, red algae, and cryptophytes produce two classes of proteins for light-harvesting: water-soluble phycobiliproteins and membrane-intrinsic proteins that bind chlorophylls and carotenoids. In cyanobacteria, red algae, and glaucophytes, phycobilisomes (PBS) are complexes of brightly colored phycobiliproteins and linker (assembly) proteins. To date, six structural classes of phycobilisomes
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The H3K4 demethylase JMJ1 is required for proper timing of flowering in Brachypodium distachyon Plant Cell (IF 11.6) Pub Date : 2024-04-23 Bing Liu, Chengzhang Li, Xiang Li, Jiachen Wang, Wenhao Xie, Daniel P Woods, Weiya Li, Xiaoyu Zhu, Shuoming Yang, Aiwu Dong, Richard M Amasino
Flowering is a key developmental transition in the plant life cycle. In temperate climates, flowering often occurs in response to the perception of seasonal cues such as changes in day-length and temperature. However, the mechanisms that have evolved to control the timing of flowering in temperate grasses are not fully understood. We identified a Brachypodium distachyon mutant whose flowering is delayed
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Protein degradation in the auxin response Plant Cell (IF 11.6) Pub Date : 2024-04-23 Martijn de Roij, Jan Willem Borst, Dolf Weijers
The signaling molecule auxin sits at the nexus of plant biology and coordinates essentially all growth and developmental processes in plants. Auxin molecules are transported throughout plant tissues and are capable of evoking highly specific physiological responses in plant cells by inducing various molecular pathways. In many of these pathways, proteolysis plays a crucial role for correct physiological
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ArabidopsismRNA export factor MOS11: molecular interactions and role in abiotic stress responses New Phytol. (IF 9.4) Pub Date : 2024-04-23 Amelie Rödel, Ina Weig, Sophie Tiedemann, Uwe Schwartz, Gernot Längst, Christoph Moehle, Marion Grasser, Klaus D. Grasser
Summary Transcription and export (TREX) is a multi‐subunit complex that links synthesis, processing and export of mRNAs. It interacts with the RNA helicase UAP56 and export factors such as MOS11 and ALYs to facilitate nucleocytosolic transport of mRNAs. Plant MOS11 is a conserved, but sparsely researched RNA‐binding export factor, related to yeast Tho1 and mammalian CIP29/SARNP. Using biochemical approaches
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Some fall to sleep slowly: cell biophysics and metabolism of quiescence in diatom resting cells New Phytol. (IF 9.4) Pub Date : 2024-04-23 Peter von Dassow
Unicellular phototrophs are responsible for approximately as much photosynthesis as all land plants (Field et al., 1998). With their intricate silica coverings, diatoms are both among the most beautiful microalgae as well as being among the most important, contributing 40% of carbon exported to the ocean depths (Jin et al., 2006). A phototroph living in the water column must be close enough to the
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Genome‐wide association study and network analysis of in vitro transformation in Populus trichocarpa support key roles of diverse phytohormone pathways and cross talk New Phytol. (IF 9.4) Pub Date : 2024-04-23 Michael F. Nagle, Jialin Yuan, Damanpreet Kaur, Cathleen Ma, Ekaterina Peremyslova, Yuan Jiang, Greg S. Goralogia, Anna Magnuson, Jia Yi Li, Wellington Muchero, Li Fuxin, Steven H. Strauss
Summary Wide variation in amenability to transformation and regeneration (TR) among many plant species and genotypes presents a challenge to the use of genetic engineering in research and breeding. To help understand the causes of this variation, we performed association mapping and network analysis using a population of 1204 wild trees of Populus trichocarpa (black cottonwood). To enable precise and
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Tree water uptake patterns across the globe New Phytol. (IF 9.4) Pub Date : 2024-04-23 Christoph Bachofen, Shersingh Joseph Tumber‐Dávila, D. Scott Mackay, Nate G. McDowell, Andrea Carminati, Tamir Klein, Benjamin D. Stocker, Maurizio Mencuccini, Charlotte Grossiord
SummaryPlant water uptake from the soil is a crucial element of the global hydrological cycle and essential for vegetation drought resilience. Yet, knowledge of how the distribution of water uptake depth (WUD) varies across species, climates, and seasons is scarce relative to our knowledge of aboveground plant functions. With a global literature review, we found that average WUD varied more among biomes
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MicroRNA164e suppresses NAC100 transcription factor‐mediated synthesis of seed storage proteins in chickpea New Phytol. (IF 9.4) Pub Date : 2024-04-23 Anirban Chakraborty, Baljinder Singh, Vimal Pandey, Swarup K. Parida, Sabhyata Bhatia
Summary Development of protein‐enriched chickpea varieties necessitates an understanding of specific genes and key regulatory circuits that govern the synthesis of seed storage proteins (SSPs). Here, we demonstrated the novel involvement of Ca‐miR164e‐CaNAC100 in regulating SSP synthesis in chickpea. Ca‐miRNA164e was significantly decreased during seed maturation, especially in high‐protein accessions
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Celine, a long interspersed nuclear element retrotransposon, colonizes in the centromeres of poplar chromosomes Plant Physiol. (IF 7.4) Pub Date : 2024-04-23 Haoyang Xin, Yiduo Wang, Wenli Zhang, Bao Yu, Pavel Neumann, Yihang Ning, Tao Zhang, Yufeng Wu, Ning Jiang, Jiming Jiang, Mengli Xi
Centromeres in most multicellular eukaryotes are composed of long arrays of repetitive DNA sequences. Interestingly, several transposable elements, including the well-known long terminal repeat (LTR) retrotransposon CRM (centromeric retrotransposon of maize), were found to be enriched in functional centromeres marked by the centromeric histone H3 (CENH3). Here we report a centromeric long interspersed
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Co-repressors AtSDR4L and DIG1 interact with transcription factor VAL2 and promote Arabidopsis seed-to-seedling transition Plant Physiol. (IF 7.4) Pub Date : 2024-04-23 Bailan Lu, Milad Alizadeh, Ryan Hoy, Renwei Zheng, Dongeun Go, Liang Song
Two transcriptional co-repressors physically interact with a transcription factor that is known to recruit a multi-protein complex, which promotes the repression of seed maturation genes by depositing trimethylation marks on lysine 27 of the histone 3 tails.
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A group of L-type lectin receptor kinases function redundantly in mediating extracellular NAD(P) signaling in Arabidopsis Plant Physiol. (IF 7.4) Pub Date : 2024-04-23 Qi Li, Mingxi Zhou, Fiona Harris, Zhonglin Mou
An Arabidopsis mutant lacking several L-type lectin receptor kinases shows severely reduced NAD(P)-induced local and systemic immunity and biological induction of systemic acquired resistance.
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A tale of two pumps: Blue light and abscisic acid alter Arabidopsis leaf hydraulics via bundle sheath cell H + -ATPases Plant Physiol. (IF 7.4) Pub Date : 2024-04-23 Tanmayee Torne-Srivastava, Yael Grunwald, Ahan Dalal, Adi Yaaran, Menachem Moshelion, Nava Moran
The bundle sheath cell (BSC) layer tightly enveloping the xylem throughout the leaf is recognized as a major signal-perceiving “valve” in series with stomata, regulating leaf hydraulic conductance (Kleaf) and thereby radial water flow via the transpiring leaf. The BSC blue light (BL) signaling pathway increases Kleaf and the underlying BSC water permeability. Here, we explored the hypothesis that BSCs
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Large dataset analyses advance knowledge of seed ecology and evolutionary biology New Phytol. (IF 9.4) Pub Date : 2024-04-22 Sergey Rosbakh, Angelino Carta, Eduardo Fernández‐Pascual, Shyam S. Phartyal, Roberta L. C. Dayrell, Efisio Mattana, Arne Saatkamp, Filip Vandelook, Jerry M. Baskin, Carol C. Baskin
Response to: ‘The need for mechanistic explanations in (seed) ecology’ by Pausas et al. (2024) While scientists have long recognized the role of seeds in the life of plants, a mechanistic understanding of seed functions has emerged only in the past two decades as a result of fruitful communication between physiologists and ecologists (Vleeshouwers et al., 1995; Vázquez-Yanes & Orozco-Segovia, 1996;
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The need for mechanistic explanations in (seed) ecology New Phytol. (IF 9.4) Pub Date : 2024-04-22 Juli G. Pausas, Byron B. Lamont, Jon E. Keeley, William J. Bond
‘I would rather discover one cause than gain the kingdom of Persia’. Democritus (460–370 bc) ‘Data do not understand causes and effects; humans do’. Pearl & Mackenzie (2018)
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Imaging of labile Fe2+ and Fe3+ in living Arabidopsis thaliana roots Plant Physiol. (IF 7.4) Pub Date : 2024-04-22 Carine Alcon, Arnaud Comte, Catherine Curie, Tou Cheu Xiong
Adapting fluorescent iron imaging to living plants enables visualizing labile Fe2+ and Fe3+ pools, revealing the heterogeneous distribution of iron redox status at the tissue and cellular levels.
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Engineering soybean with high levels of herbicide resistance with a Cas12‐SF01‐based cytosine base editor Plant Biotech. J. (IF 13.8) Pub Date : 2024-04-21 Qingfeng Niu, Hongtao Xie, Xuesong Cao, Minglei Song, Xin Wang, Shasha Li, Kang Pang, Yangyang Zhang, Jian‐Kang Zhu, Jianhua Zhu
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Carbon budget at the individual‐tree scale: dominant Eucalyptus trees partition less carbon belowground New Phytol. (IF 9.4) Pub Date : 2024-04-20 Ezequiel Fernandez‐Tschieder, John D. Marshall, Dan Binkley
Summary Large trees in plantations generally produce more wood per unit of resource use than small trees. Two processes may account for this pattern: greater photosynthetic resource use efficiency or greater partitioning of carbon to wood production. We estimated gross primary production (GPP) at the individual scale by combining transpiration with photosynthetic water‐use efficiency of Eucalyptus
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Negative allometry of leaf xylem conduit diameter and double‐wall thickness: implications for implosion safety New Phytol. (IF 9.4) Pub Date : 2024-04-20 Ilaine Silveira Matos, Samantha McDonough, Breanna Carrillo Johnson, Diana Kalantar, James Rohde, Roshni Sahu, Joyce Wang, Adrian Fontao, Jason To, Sonoma Carlos, Lisa Garcia, Mickey Boakye, Holly Forbes, Benjamin Wong Blonder
Summary Xylem conduits have lignified walls to resist crushing pressures. The thicker the double‐wall (T) relative to its diameter (D), the greater the implosion safety. Having safer conduits may incur higher costs and reduced flow, while having less resistant xylem may lead to catastrophic collapse under drought. Although recent studies have shown that conduit implosion commonly occurs in leaves,
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Sequential activation of strigolactone and salicylate biosynthesis promotes leaf senescence New Phytol. (IF 9.4) Pub Date : 2024-04-20 Yexing Jing, Ziyi Yang, Zongju Yang, Wanqing Bai, Ruizhen Yang, Yanjun Zhang, Kewei Zhang, Yunwei Zhang, Jiaqiang Sun
Summary Leaf senescence is a complex process strictly regulated by various external and endogenous factors. However, the key signaling pathway mediating leaf senescence remains unknown. Here, we show that Arabidopsis SPX1/2 negatively regulate leaf senescence genetically downstream of the strigolactone (SL) pathway. We demonstrate that the SL receptor AtD14 and MAX2 mediate the age‐dependent degradation
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Deciphering the mechanisms of gene silencing induced by triplet-repeat expansions Nat. Plants (IF 18.0) Pub Date : 2024-04-19
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Mycoheterotrophy in the wood-wide web Nat. Plants (IF 18.0) Pub Date : 2024-04-19 Vincent S. F. T. Merckx, Sofia I. F. Gomes, Deyi Wang, Cas Verbeek, Hans Jacquemyn, Franziska E. Zahn, Gerhard Gebauer, Martin I. Bidartondo
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SUMO protease FUG1, histone reader AL3 and chromodomain protein LHP1 are integral to repeat expansion-induced gene silencing in Arabidopsis thaliana Nat. Plants (IF 18.0) Pub Date : 2024-04-19 Sridevi Sureshkumar, Champa Bandaranayake, Junqing Lv, Craig I. Dent, Prakash Kumar Bhagat, Sourav Mukherjee, Rucha Sarwade, Chhaya Atri, Harrison M. York, Prashanth Tamizhselvan, Nawar Shamaya, Giulia Folini, Benjamin G. Bergey, Avilash Singh Yadav, Subhasree Kumar, Oliver S. Grummisch, Prince Saini, Ram K. Yadav, Senthil Arumugam, Emanuel Rosonina, Ari Sadanandom, Hongtao Liu, Sureshkumar Balasubramanian
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Legacy effects of premature defoliation in response to an extreme drought event modulate phytochemical profiles with subtle consequences for leaf herbivory in European beech New Phytol. (IF 9.4) Pub Date : 2024-04-19 Michael Eisenring, Arthur Gessler, Esther R. Frei, Gaétan Glauser, Bernd Kammerer, Maurice Moor, Anouchka Perret-Gentil, Thomas Wohlgemuth, Martin M. Gossner
Introduction Around the world, forest ecosystems are increasingly challenged by combined effects of heat and drought (Hammond et al., 2022). Projected climate change scenarios suggest that the occurrence and intensity of future drought events will increase, exacerbating the situation for forests (Touma et al., 2015; Samaniego et al., 2018; UNCCD, 2022). Droughts can affect forest ecosystems directly
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Uncovering drivers of global tree diversity Nat. Plants (IF 18.0) Pub Date : 2024-04-18 Joseph A. LaManna
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OsALKBH9‐mediated m6A demethylation regulates tapetal PCD and pollen exine accumulation in rice Plant Biotech. J. (IF 13.8) Pub Date : 2024-04-18 Jun Tang, Dekun Lei, Junbo Yang, Shuyan Chen, Xueping Wang, Xiaoxin Huang, Shasha Zhang, Zhihe Cai, Shanshan Zhu, Jianmin Wan, Guifang Jia
SummaryThe N6‐methyladenosine (m6A) mRNA modification is crucial for plant development and stress responses. In rice, the male sterility resulting from the deficiency of OsFIP37, a core component of m6A methyltransferase complex, emphasizes the significant role of m6A in male fertility. m6A is reversible and can be removed by m6A demethylases. However, whether mRNA m6A demethylase regulates male fertility
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Arabidopsis class A S-acyl transferases modify the pollen receptors LIP1 and PRK1 to regulate pollen tube guidance Plant Cell (IF 11.6) Pub Date : 2024-04-18 Xiaojiao Xiang, Zhiyuan Wan, Shuzhan Zhang, Qiang-Nan Feng, Shan-Wei Li, Gui-Min Yin, Jing-Yu Zhi, Xin Liang, Ting Ma, Sha Li, Yan Zhang
Protein S-acylation catalyzed by protein S-acyl transferases (PATs) is a reversible lipid modification regulating protein targeting, stability, and interaction profiles. PATs are encoded by large gene families in plants, and many proteins including receptor-like cytoplasmic kinases (RLCKs) and receptor-like kinases (RLKs) are subject to S-acylation. However, few PATs have been assigned substrates,
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The transcriptome landscape of developing barley seeds Plant Cell (IF 11.6) Pub Date : 2024-04-18 Martin Kovacik, Anna Nowicka, Jana Zwyrtková, Beáta Strejčková, Isaia Vardanega, Eddi Esteban, Asher Pasha, Kateřina Kaduchová, Maryna Krautsova, Marie Červenková, Jan Šafář, Nicholas J Provart, Rüdiger Simon, Ales Pecinka
Cereal grains are an important source of food and feed. To provide comprehensive spatiotemporal information about biological processes in developing seeds of cultivated barley (Hordeum vulgare L. subsp. vulgare), we performed a transcriptomic study of the embryo, endosperm, and seed maternal tissues collected from grains 4–32 days after pollination. Weighted gene co-expression network and motif enrichment
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FLOURY ENDOSPERM24, a heat shock protein 101 (HSP101), is required for starch biosynthesis and endosperm development in rice New Phytol. (IF 9.4) Pub Date : 2024-04-18 Hongming Wu, Yulong Ren, Hui Dong, Chen Xie, Lei Zhao, Xin Wang, Fulin Zhang, Binglei Zhang, Xiaokang Jiang, Yunshuai Huang, Ruonan Jing, Jian Wang, Rong Miao, Xiuhao Bao, Mingzhou Yu, Thanhliem Nguyen, Changling Mou, Yunlong Wang, Yihua Wang, Cailin Lei, Zhijun Cheng, Ling Jiang, Jianmin Wan
Summary Endosperm is the main storage organ in cereal grain and determines grain yield and quality. The molecular mechanisms of heat shock proteins in regulating starch biosynthesis and endosperm development remain obscure. Here, we report a rice floury endosperm mutant flo24 that develops abnormal starch grains in the central starchy endosperm cells. Map‐based cloning and complementation test showed
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Harnessing photosynthetic C18O16O discrimination dynamics under leaf water nonsteady state to estimate mesophyll conductance: a new, regression‐based method New Phytol. (IF 9.4) Pub Date : 2024-04-18 Sen Rao, Tao Liu, Lucas A. Cernusak, Xin Song
Summary Mesophyll conductance (gm) is a crucial plant trait that can significantly limit photosynthesis. Measurement of photosynthetic C18O16O discrimination (Δ18O) has proved to be the only viable means of resolving gm in both C3 and C4 plants. However, the currently available methods to exploit Δ18O for gm estimation are error prone due to their inadequacy in constraining the degree of oxygen isotope
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Glutathionylation of a glycolytic enzyme promotes cell death and vigor loss during aging of elm seeds Plant Physiol. (IF 7.4) Pub Date : 2024-04-18 Ying Li, Yu Wang, Yu-Qi He, Tian-Tian Ye, Xu Huang, Hao Wu, Tian-Xiao Ma, Hugh W Pritchard, Xiao-Feng Wang, Hua Xue
Seed deterioration during storage is a major problem in agricultural and forestry production and for germplasm conservation. Our previous studies have shown that a mitochondrial outer membrane protein VOLTAGE-DEPENDENT ANION CHANNEL (VDAC) is involved in programmed cell death (PCD)-like viability loss during the controlled deterioration treatment (CDT) of elm (Ulmus pumila L.) seeds, but its underlying
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Jasmonate mimic modulates cell elongation by regulating antagonistic bHLH transcription factors via brassinosteroid signaling Plant Physiol. (IF 7.4) Pub Date : 2024-04-18 Xing Wang, Zhaobin Ren, Shipeng Xie, Zhaohu Li, Yuyi Zhou, Liusheng Duan
Lodging restricts growth, development, and yield formation in maize (Zea mays L.). Shorter internode length is beneficial for lodging tolerance. However, although brassinosteroids (BRs) and jasmonic acid (JA) are known to antagonistically regulate internode growth, the underlying molecular mechanism is still unclear. In this study, application of the JA mimic coronatine (COR) inhibited basal internode
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BRZ-INSENSITIVE-LONG HYPOCOTYL8 inhibits kinase-mediated phosphorylation to regulate brassinosteroid signaling Plant Physiol. (IF 7.4) Pub Date : 2024-04-18 Zhana Chagan, Genki Nakata, Shin Suzuki, Ayumi Yamagami, Ryo Tachibana, Surina Surina, Shozo Fujioka, Minami Matsui, Tetsuo Kushiro, Takuya Miyakawa, Tadao Asami, Takeshi Nakano
Glycogen synthase kinase 3 (GSK3) is an evolutionarily conserved serine/threonine protein kinase in eukaryotes. In plants, the GSK3-like kinase BRASSINOSTEROID-INSENSITIVE 2 (BIN2) functions as a central signaling node through which hormonal and environmental signals are integrated to regulate plant development and stress adaptation. BIN2 plays a major regulatory role in brassinosteroid (BR) signaling
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RNA splicing modulates the postharvest physiological deterioration of cassava storage root Plant Physiol. (IF 7.4) Pub Date : 2024-04-18 Jinbao Gu, Xiaowen Ma, Qiuxiang Ma, Zhiqiang Xia, Yan Lin, Jianbo Yuan, Yang Li, Cong Li, Yanhang Chen, Wenquan Wang, Peng Zhang, Zhen-Yu Wang
Rapid postharvest physiological deterioration (PPD) of cassava (Manihot esculenta Crantz) storage roots is a major constraint that limits the potential of this plant as a food and industrial crop. Extensive studies have been performed to explore the regulatory mechanisms underlying the PPD processes in cassava to understand their molecular and physiological responses. However, the exceptional functional
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Increased cytoplasmic Mg2+ level contributes to rice salicylic acid accumulation and broad-spectrum resistance Plant Physiol. (IF 7.4) Pub Date : 2024-04-18 Wenzhi Zeng, Yanjun Zhang, Xinyue Tian, Wenyan Li, Han Meng, Yuanchang Zhou, Zonghua Wang, Zhichang Chen, Kewei Zhang, Mo Wang
Elevating Mg2+ levels in rice cytoplasm by genetic modification or exogenous supply increases salicylic acid accumulation and enhances broad-spectrum resistance to pathogens.
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The GRAS transcription factor CsTL regulates tendril formation in cucumber Plant Cell (IF 11.6) Pub Date : 2024-04-17 Junjun Shen, Yanxin Jiang, Jian Pan, Linhan Sun, Qingqing Li, Wenjing He, Piaoyun Sun, Bosi Zhao, Hongjiao Zhao, Xubo Ke, Yalu Guo, Tongwen Yang, Zheng Li
Cucumber (Cucumis sativus, Cs) tendrils are slender vegetative organs that typically require manual removal to ensure orderly growth during greenhouse cultivation. Here, we identified cucumber tendril-less (tl), a Tnt1 retrotransposon-induced insertion mutant lacking tendrils. Map-based cloning identified the mutated gene, CsaV3_3G003590, which we designated as CsTL, which is homologous to Arabidopsis
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High floral disparity without pollinator shifts in buzz-bee-pollinated Melastomataceae New Phytol. (IF 9.4) Pub Date : 2024-04-17 Constantin Kopper, Jürg Schönenberger, Agnes S. Dellinger
Introduction Pollination syndromes are defined as suites of floral traits, which have evolved repeatedly in adaptation to distinct functional pollinator groups, with flowers pollinated by the same functional group converging in trait space due to shared selective pressures (i.e. due to similar sensory abilities, morphology, dietary preferences, and behavior of their pollinators; Vogel, 1954; Faegri
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Positional cloning and characterization reveal the role of TaSRN‐3D and TaBSR1 in the regulation of seminal root number in wheat New Phytol. (IF 9.4) Pub Date : 2024-04-17 Zhaoyan Chen, Xuanshuang Li, Fei He, Bin Liu, Weiya Xu, Lingling Chai, Xuejiao Cheng, Long Song, Weilong Guo, Zhaorong Hu, Zhenqi Su, Jie Liu, Mingming Xin, Huiru Peng, Yingyin Yao, Qixin Sun, Jiewen Xing, Zhongfu Ni
Summary Seminal roots play a critical role in water and nutrient absorption, particularly in the early developmental stages of wheat. However, the genes responsible for controlling SRN in wheat remain largely unknown. Genetic mapping and functional analyses identified a candidate gene (TraesCS3D01G137200, TaSRN‐3D) encoding a Ser/Thr kinase glycogen synthase kinase 3 (STKc_GSK3) that regulated SRN
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A pipeline for identification of causal mutations in barley identifies Xantha-j as the chlorophyll synthase gene Plant Physiol. (IF 7.4) Pub Date : 2024-04-17 David Stuart, Shakhira Zakhrabekova, Morten Egevang Jørgensen, Christoph Dockter, Mats Hansson
Thousands of barley (Hordeum vulgare L.) mutants have been isolated over the last century, and many are stored in gene banks across various countries. In the present work, we developed a pipeline to efficiently identify causal mutations in barley. The pipeline is also efficient for mutations located in centromeric regions. Through bulked-segregant analyses using whole genome sequencing of pooled F2
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3D reconstruction and multi-omics analysis reveal a unique pattern of embryogenesis in Ginkgo biloba Plant Physiol. (IF 7.4) Pub Date : 2024-04-17 Lingyu Ma, Zijian Hu, Weiwei Shen, Yingying Zhang, Guangchao Wang, Bang Chang, Jinkai Lu, Yaning Cui, Huimin Xu, Yun Feng, Biao Jin, Xi Zhang, Li Wang, Jinxing Lin
Ginkgo (Ginkgo biloba L.) is one of the earliest extant species in seed plant phylogeny. Embryo development patterns can provide fundamental evidence for the origin, evolution, and adaptation of seeds. However, the architectural and morphological dynamics during embryogenesis in Ginkgo biloba (G. biloba) remain elusive. Herein, we obtained over 2200 visual slices from three stages of embryo development
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Exploring the influence of a single‐nucleotide mutation in EIN4 on tomato fruit firmness diversity through fruit pericarp microstructure Plant Biotech. J. (IF 13.8) Pub Date : 2024-04-16 Shiwen Zhang, Shengqing Wu, Zhiqi Jia, Junhong Zhang, Ying Li, Xingyun Ma, Bingli Fan, Panqiao Wang, Yanna Gao, Zhibiao Ye, Wei Wang
SummaryTomato (Solanum lycopersicum) stands as one of the most valuable vegetable crops globally, and fruit firmness significantly impacts storage and transportation. To identify genes governing tomato firmness, we scrutinized the firmness of 266 accessions from core collections. Our study pinpointed an ethylene receptor gene, SlEIN4, located on chromosome 4 through a genome‐wide association study
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Isotopically nonstationary metabolic flux analysis of plants: recent progress and future opportunities New Phytol. (IF 9.4) Pub Date : 2024-04-16 Somnath Koley, Poonam Jyoti, Maneesh Lingwan, Doug K. Allen
Metabolic flux analysis (MFA) is a valuable tool for quantifying cellular phenotypes and to guide plant metabolic engineering. By introducing stable isotopic tracers and employing mathematical models, MFA can quantify the rates of metabolic reactions through biochemical pathways. Recent applications of isotopically nonstationary MFA (INST-MFA) to plants have elucidated nonintuitive metabolism in leaves