根际
渗出液
生物
互补
植物
食草动物
土壤微生物学
大块土
细菌
土壤水分
生态学
表型
生物化学
遗传学
基因
作者
Lingfei Hu,Christelle Robert,Selma Cadot,Xi Zhang,Meng Ye,Beibei Li,Daniele Manzo,Noemie Chervet,Thomas Steinger,Marcel G. A. van der Heijden,Klaus Schlaeppi,Matthias Erb
标识
DOI:10.1038/s41467-018-05122-7
摘要
By changing soil properties, plants can modify their growth environment. Although the soil microbiota is known to play a key role in the resulting plant-soil feedbacks, the proximal mechanisms underlying this phenomenon remain unknown. We found that benzoxazinoids, a class of defensive secondary metabolites that are released by roots of cereals such as wheat and maize, alter root-associated fungal and bacterial communities, decrease plant growth, increase jasmonate signaling and plant defenses, and suppress herbivore performance in the next plant generation. Complementation experiments demonstrate that the benzoxazinoid breakdown product 6-methoxy-benzoxazolin-2-one (MBOA), which accumulates in the soil during the conditioning phase, is both sufficient and necessary to trigger the observed phenotypic changes. Sterilization, fungal and bacterial profiling and complementation experiments reveal that MBOA acts indirectly by altering root-associated microbiota. Our results reveal a mechanism by which plants determine the composition of rhizosphere microbiota, plant performance and plant-herbivore interactions of the next generation.
科研通智能强力驱动
Strongly Powered by AbleSci AI