Plant root plasticity during drought and recovery: what do we know and where to go?

HIGHLIGHTS

SUMMARY

    During drought plant roots modify aquaporin (AQP) and dehydrin gene_expression (Reddy et_al, 2017), change metaxylem vessel diameter, root diameter, and crown root number (Gao and Lynch, 2016; De Bauw et_al, 2019; Klein et_al, 2020), increase ABA levels and change carbon allocation (Zhang et_al, 2006; Guo et_al, 2021), and alter root microbiota composition (Santos-Medellin et_al, 2021). Although both drought resistance and postdrought recovery are key determinants of plant growth, some recent studies suggest that recovery may play a more significant role in plant drought adaptation than drought resistance itself (Chen et_al, 2016; Gonzalez-Hernandez . . .

     

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