Alkaline Stress Induces Different Physiological, Hormonal and Gene Expression Responses in Diploid and Autotetraploid Rice.

ABSTRACT: Saline-alkaline stress is a critical abiotic stress that negatively affects plants' growth and development. Considerably higher enhancements in plant tolerance to saline-alkaline stress have often been observed in polyploid plants compared to their diploid relatives, the underlying mechanism of which remains elusive. In this study, we explored the variations in morphological and physiological characteristics, phytohormones, and genome-wide gene expression between an autotetraploid rice and its diploid relative in response to alkaline stress. It was observed that the polyploidization in the autotetraploid rice imparted a higher level of alkaline tolerance than in its diploid relative. An eclectic array of physiological parameters commonly used for abiotic stress, such as proline, soluble su

SUBMITTER: Wang N 

PROVIDER: S-EPMC9142035 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature