Oxalate and oxalotrophy: an environmental perspective
Oxalate and oxalotrophy: an environmental perspective
复制标题
草酸盐和草酸营养不良：环境视角
DOI：
10.1093/sumbio/qvad004
复制
发表时间：
2024
期刊：
影响因子：
--
通讯作者：
Nel, Teneille
中科院分区：
文献类型：
--
作者：
Cowan, Don A.;Babenko, Darya;Bird, Ryan;Botha, Alf;Breecker, Daniel O.;Clarke, Cathy E.;Francis, Michele L.;Gallagher, Tim;Lebre, Pedro H.;Nel, Teneille
草酸是植物产生的最丰富的有机酸之一。全球生产的草酸大部分以落叶的形式沉积在土壤表面，被微生物氧化，导致pH值升高并改变碳酸盐平衡。在所谓的草酸盐-碳酸盐途径中，草酸钙代谢导致CO2以不溶性方解石（CaCO 3）的形式被隔离到土壤中。人们越来越认识到，这一过程的全球规模足够大，足以对全球碳周转预算做出重要贡献。草酸营养的微生物学、遗传学和酶学都已建立健全，但需要更详细地了解这一过程的微生物学规模动力学，才能将草酸营养作为相关可持续发展目标的过程模型要素。在这里，我们回顾了目前的知识状况，草酰乙酸和草酰乙酸和他们在陆地生态系统服务和功能的碳固存和养分循环方面发挥的作用。我们强调这些与可持续发展目标（SDG）的相关性，并强调在考虑生态系统的自然资本价值时认识到草食营养的重要性。
Oxalic acid is one of the most abundant organic acids produced by plants. Much of the global production of oxalic acid is deposited on soil surfaces in leaf litter to be oxidized by microorganisms, resulting in a pH increase and shifting the carbonate equilibria. In what is known as the oxalate-carbonate pathway, calcium oxalate metabolism results in CO2being sequestered into soils as insoluble calcite (CaCO3). There is a growing appreciation that the global scale of this process is sufficiently large to be an important contribution to global carbon turnover budgets.The microbiomics, genetics, and enzymology of oxalotrophy are all soundly established, although a more detailed understanding of the landscape-scale kinetics of the process would be needed to incorporate oxalotrophy as an element of process models informing the relevant Sustainable Development Goals. Here, we review the current state of knowledge of oxalotrophs and oxalotrophy and the role they play in terrestrial ecosystem services and functions in terms of carbon sequestration and nutrient cycling. We emphasize the relevance of these to the Sustainability Development Goals (SDGs) and highlight the importance of recognizing oxalotrophy, when accounting for the natural capital value of an ecosystem.