2024-03-29T11:15:50Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1736942021-12-27T16:20:12Zcom_10261_63617com_10261_8col_10261_63619
Rhizosphere microorganisms can influence the timing of plant flowering
Lu, Tao
Ke, Mingjing
Lavoie, Michel
Jin, Yujian
Fan, Xiaoji
Zhang, Zhenyan
Fu, Zhengwei
Sun, Liwei
Gillings, Michael
Peñuelas, Josep
Qian, Haifeng
Zhu, Yong-Guan
National Natural Science Foundation of China
Chinese Academy of Sciences
European Research Council
Rhizosphere
Microbiota
Root exudate
Nitrogen
Indole acetic acid
Arabidopsis
Flowering time
[Background]: Plant phenology has crucial biological, physical, and chemical effects on the biosphere. Phenological drivers have largely been studied, but the role of plant microbiota, particularly rhizosphere microbiota, has not been considered.
[Results]: We discovered that rhizosphere microbial communities could modulate the timing of flowering of Arabidopsis thaliana. Rhizosphere microorganisms that increased and prolonged N bioavailability by nitrification delayed flowering by converting tryptophan to the phytohormone indole acetic acid (IAA), thus downregulating genes that trigger flowering, and stimulating further plant growth. The addition of IAA to hydroponic cultures confirmed this metabolic network.
[Conclusions]: We document a novel metabolic network in which soil microbiota influenced plant flowering time, thus shedding light on the key role of soil microbiota on plant functioning. This opens up multiple opportunities for application, from helping to mitigate some of the effects of climate change and environmental stress on plants (e.g. abnormal temperature variation, drought, salinity) to manipulating plant characteristics using microbial inocula to increase crop potential.
This work was financially supported by the National Natural Science Foundation of China (21577128, 21777144), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB15020302 and XDB15020402), the CAS Pioneer Hundred Talents Program (H.F. Qian), and the Xingjiang Uighur Autonomous Region Talent Project (H.F. Qian). JP research is funded by the European Research Council Synergy grant
SyG-2013-610028 IMBALANCE-P.
Peer reviewed
2018-12-30T04:45:51Z
2018-12-30T04:45:51Z
2018-12-26
2018-12-30T04:45:51Z
artículo
http://purl.org/coar/resource_type/c_6501
Microbiome 6(1): 231 (2018)
http://hdl.handle.net/10261/173694
10.1186/s40168-018-0615-0
2049-2618
http://dx.doi.org/10.13039/501100002367
http://dx.doi.org/10.13039/501100001809
http://dx.doi.org/10.13039/501100000781
30587246
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7/610028
Publisher's version
https://doi.org/10.1186/s40168-018-0615-0
Sí
open
BioMed Central