生物
固氮
硝化作用
共生
氮气循环
植物
词根(语言学)
氮气
农业
根瘤
植物根系
农学
植物根
生态学
园艺
细菌
遗传学
量子力学
物理
哲学
语言学
作者
Devrim Coskun,Dev T. Britto,Weiming Shi,Herbert J. Kronzucker
标识
DOI:10.1016/j.tplants.2017.05.004
摘要
Although the global nitrogen (N) cycle is largely driven by soil microbes, plant root exudates can profoundly modify soil microbial communities and influence their N transformations. A detailed understanding is now beginning to emerge regarding the control that root exudates exert over two major soil N processes - nitrification and N2 fixation. We discuss recent breakthroughs in this area, including the identification of root exudates as nitrification inhibitors and as signaling compounds facilitating N-acquisition symbioses. We indicate gaps in current knowledge, including questions of how root exudates affect newly discovered microbial players and N-cycle components. A better understanding of these processes is urgent given the widespread inefficiencies in agricultural N use and their links to N pollution and climate change.
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