当前位置: X-MOL 学术Fungal Biol. Rev. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Discoveries and identification methods of metal oxalates in lichens and their mineral associations: A review of past studies and analytical options for lichenologists
Fungal Biology Reviews ( IF 6 ) Pub Date : 2022-10-18 , DOI: 10.1016/j.fbr.2022.09.003
Viktória Krajanová

Lichens are generally acknowledged as the main agents of the initial bioweathering of rock substrates. The most direct evidence of a chemical interaction between lichens and their mineral substrata is the production of oxalic acid, of which interaction with ions present in a close lichen environment occasionally results in the precipitation of metal oxalates. In the past, only a few studies revealed the presence of metal oxalates in lichens, and currently, almost no new discoveries are arriving. Therefore, the main goal of this review is to bring the focus back to this phenomenon. To date, only Mg oxalate dihydrate, Mn oxalate dihydrate, Cu oxalate hemihydrate, Zn oxalate dihydrate, and anhydrous Pb oxalate have been detected in lichens. The most reliable diagnostic methods of metal oxalates in lichens are powder X-ray diffraction (pXRD), infrared spectroscopy (IR), extended X-ray absorption fine structure (EXAFS) spectroscopy, and Raman spectroscopy. Prospective lichen specimens for investigations may be found in anthropogenically-polluted environment or naturally metal-rich rock substrata. This review acts as an initial guide that provides analytical options for field lichenologists, offers a few suggestions for further research on this matter, and encourages to new biomineral discoveries in the scope of mineralogy. Survival in the metal-toxic environment, ability to produce oxygen, and extremophile nature, are the reasons why lichens are good subjects for research within the context of currently expanding astrobiology sciences, as well.



中文翻译:

地衣及其矿物组合中金属草酸盐的发现和鉴定方法:回顾过去的研究和地衣学家的分析选择

地衣通常被认为是岩石基质初始生物风化的主要因素。地衣与其矿物基质之间化学相互作用的最直接证据是草酸的产生,草酸与存在于紧密地衣环境中的离子的相互作用偶尔会导致金属草酸盐的沉淀。过去,只有少数研究表明地衣中存在金属草酸盐,目前几乎没有新的发现。因此,本次审查的主要目标是将焦点带回这一现象。迄今为止,在地衣中仅检测到二水草酸镁、二水草酸锰、半水草酸铜、二水草酸锌和无水草酸铅。地衣中金属草酸盐最可靠的诊断方法是粉末 X 射线衍射 (pXRD),红外光谱 (IR)、扩展 X 射线吸收精细结构 (EXAFS) 光谱和拉曼光谱。可能在人为污染的环境或天然富含金属的岩石基质中发现用于调查的潜在地衣标本。本综述作为初步指南,为田间地衣学家提供分析选择,为进一步研究这一问题提供一些建议,并鼓励在矿物学范围内发现新的生物矿物。在金属有毒环境中的生存、产生氧气的能力和极端微生物的性质,是在当前扩展的天体生物学科学的背景下,地衣也是研究的好对象的原因。可能在人为污染的环境或天然富含金属的岩石基质中发现用于调查的潜在地衣标本。本综述作为初步指南,为田间地衣学家提供分析选择,为进一步研究这一问题提供一些建议,并鼓励在矿物学范围内发现新的生物矿物。在金属有毒环境中的生存、产生氧气的能力和极端微生物的性质,是在当前扩展的天体生物学科学的背景下,地衣也是研究的好对象的原因。可能在人为污染的环境或天然富含金属的岩石基质中发现用于调查的潜在地衣标本。本综述作为初步指南,为田间地衣学家提供分析选择,为进一步研究这一问题提供一些建议,并鼓励在矿物学范围内发现新的生物矿物。在金属有毒环境中的生存、产生氧气的能力和极端微生物的性质,是在当前扩展的天体生物学科学的背景下,地衣也是研究的好对象的原因。为进一步研究这一问题提供了一些建议,并鼓励在矿物学范围内发现新的生物矿物。在金属有毒环境中的生存、产生氧气的能力和极端微生物的性质,是在当前扩展的天体生物学科学的背景下,地衣也是研究的好对象的原因。为进一步研究这一问题提供了一些建议,并鼓励在矿物学范围内发现新的生物矿物。在金属有毒环境中的生存、产生氧气的能力和极端微生物的性质,是在当前扩展的天体生物学科学的背景下,地衣也是研究的好对象的原因。

更新日期:2022-10-19
down
wechat
bug