Institute for Biological Sciences, University of Rostock, Albert-Einstein-Str. 3, 18059, Rostock, Germany.
Plant Cell Environ. 2017 Oct;40(10):2042-2067. doi: 10.1111/pce.13011. Epub 2017 Aug 24.
Plants live in association with microorganisms, which are well known as a rich source of specialized metabolites, including volatile compounds. The increasing numbers of described plant microbiomes allowed manifold phylogenetic tree deductions, but less emphasis is presently put on the metabolic capacities of plant-associated microorganisms. With the focus on small volatile metabolites we summarize (i) the knowledge of prominent bacteria of plant microbiomes; (ii) present the state-of-the-art of individual (discrete) microbial organic and inorganic volatiles affecting plants and fungi; and (iii) emphasize the high potential of microbial volatiles in mediating microbe-plant interactions. So far, 94 discrete organic and five inorganic compounds were investigated, most of them trigger alterations of the growth, physiology and defence responses in plants and fungi but little is known about the specific molecular and cellular targets. Large overlaps in emission profiles of the emitters and receivers render specific volatile organic compound-mediated interactions highly unlikely for most bioactive mVOCs identified so far.
植物与微生物共生，微生物是具有特殊代谢产物（包括挥发性化合物）的丰富来源。越来越多的植物微生物组被描述，这使得进行多种系统发育树推断成为可能，但目前对植物相关微生物的代谢能力的重视程度较低。我们关注于小分子挥发性代谢物，总结了：（i）植物微生物组中突出细菌的知识；（ii）影响植物和真菌的单个（离散）微生物有机和无机挥发物的最新研究现状；（iii）强调微生物挥发物在介导微生物-植物相互作用方面的巨大潜力。到目前为止，已经研究了 94 种离散有机化合物和 5 种无机化合物，其中大多数会引发植物和真菌的生长、生理和防御反应的改变，但对于大多数已鉴定的具有生物活性的 mVOC ，关于其特定的分子和细胞靶标的了解甚少。发射体和接收体的发射谱存在较大的重叠，使得目前为止鉴定的大多数具有生物活性的 mVOC 之间不太可能存在特定的挥发性有机化合物介导的相互作用。
