Dataset Information

Rice immune sensor XA21 differentially enhances plant growth and survival under distinct levels of drought.

ABSTRACT: Drought is a complex stress that limits plant growth and crop production worldwide. The mechanisms by which plants coordinately respond to distinct levels of water deficits (e.g., mild, moderate or severe drought) remain elusive. Here we demonstrate that the rice immune sensor XA21 promotes survival of rice seedlings during dehydration stress. XA21 expression increases deposition of lignin and cellulose in the xylem vessels and their surrounding cells. Inhibition of aquaporin water channels by mercuric chloride eliminates XA21-mediated dehydration survival, suggesting that XA21 enables plant survival during drought, probably by protecting xylem functionality. In contrast to prevailing observations of stress tolerance genes, XA21 is also capable of enhancing rice growth during moderate drought. Thus, XA21 acts as a mediator for stress protection and plant growth under water-limiting conditions.

SUBMITTER: Shamsunnaher

PROVIDER: S-EPMC7547014 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Rice immune sensor XA21 differentially enhances plant growth and survival under distinct levels of drought.

Shamsunnaher Chen Xiuhua X Zhang Xiaoxuan X Wu Xiao-Xia XX Huang Xiaoen X Song Wen-Yuan WY

Scientific reports 20201009 1

Drought is a complex stress that limits plant growth and crop production worldwide. The mechanisms by which plants coordinately respond to distinct levels of water deficits (e.g., mild, moderate or severe drought) remain elusive. Here we demonstrate that the rice immune sensor XA21 promotes survival of rice seedlings during dehydration stress. XA21 expression increases deposition of lignin and cellulose in the xylem vessels and their surrounding cells. Inhibition of aquaporin water channels by m ...[more]

PMID: 33037245

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Dataset Information

Rice immune sensor XA21 differentially enhances plant growth and survival under distinct levels of drought.

Publications

Rice immune sensor XA21 differentially enhances plant growth and survival under distinct levels of drought.

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