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Arbuscular mycorrhizal fungi with contrasting life-history strategies differently affect health-promoting compounds in field-grown tomato by changing arbuscule occurrence and mycorrhizal assemblages in roots
Biology and Fertility of Soils ( IF 6.5 ) Pub Date : 2023-11-24 , DOI: 10.1007/s00374-023-01778-6
Elisa Pellegrino , Myriam Arcidiacono , Alessandra Francini , Laura Ercoli

Contrasting life-history characteristics of arbuscular mycorrhizal (AM) fungal families may have important implications for mycorrhizal functioning. Nevertheless, the effect of inoculation with AM fungi having different life-history strategies on the quality parameters of tomato fruits was not investigated. In this study, fruit and sauce quality of two tomato varieties were evaluated in field conditions after inoculation with four AM fungal species belonging to Glomeraceae and Gigasporaceae. The functional relationship between AM fungal traits (i.e., root colonization structures, community diversity) and fruit quality parameters was analyzed. AM fungal inoculation increased total phenols (TPC) and lycopene concentration in fruits of both varieties (47% and 247%, respectively) and antioxidant activity in var. Rio Grande (85%). Gigasporaceae were more effective in increasing TPC and antioxidant activity compared to Glomeraceae in var. Rio Grande. Gigaspora gigantea outperformed Scutellospora pellucida in var. Pisanello for TPC, antioxidant activity, and lycopene. Inoculated strains of G. gigantea, S. pellucida, Funneliformis mosseae, and Sclerocystis sinuosa were molecularly retrieved within tomato roots. In both varieties, a functional relationship between occurrence of arbuscules in roots and fruit quality was found. In var. Rio Grande, the abundance of some native AM fungal taxa shaped the pattern of fruit quality parameters. Gigasporaceae might be of great relevance for the synthesis of health-promoting compounds in tomato and should be included in biostimulant programmes targeting the production of high-quality vegetables.



中文翻译:

具有对比生活史策略的丛枝菌根真菌通过改变根中丛枝的出现和菌根组合,对田间种植的番茄中促进健康的化合物产生不同的影响

对比丛枝菌根(AM)真菌家族的生活史特征可能对菌根功能具有重要意义。然而,尚未研究接种具有不同生活史策略的AM真菌对番茄果实品质参数的影响。在本研究中,在接种属于球菌科和巨孢菌科的四种 AM 真菌后,在田间条件下评估了两个番茄品种的果实和酱汁品质。分析了AM真菌性状(即根部定植结构、群落多样性)与果实品质参数之间的函数关系。AM真菌接种增加了两个品种果实中的总酚(TPC)和番茄红素浓度(分别为47%和247%)以及变种的抗氧化活性。里奥格兰德 (85%)。与Glomeraceae相比,Gigasporaceae在增加TPC和抗氧化活性方面更有效。里奥格兰德。Gigaspora gigantea变种的表现优于Scutellospora pellucida。Pisanello 具有 TPC、抗氧化活性和番茄红素在番茄根内对接种的G. giganteaS. pellucidaFunneliformis mosseaeSclerocystis sinuosa菌株进行分子回收。在这两个品种中,根部丛枝的出现与果实品质之间存在函数关系。在变种。格兰德河地区,一些本土 AM 真菌类群的丰富程度决定了水果质量参数的模式。巨孢菌科可能与番茄中促进健康的化合物的合成密切相关,应将其纳入针对优质蔬菜生产的生物刺激计划中。

更新日期:2023-11-25
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