Critical radicle length window governing loss of dehydration tolerance in germinated Perilla seeds: insights from physiological and transcriptomic analyses.

ABSTRACT:

Background

Perilla (Perilla frutescens L. Britt.) is an important oilseed and medicinal crop that frequently faces seasonal drought stress during seed germination, leading to a loss of dehydration tolerance (DT), which affects seed emergence and significantly reduces yield. DT has been successfully re-established for many species seeds. However, the physiological mechanisms and gene networks that regulate Perilla's response to DT loss remain unclear.

Results

Phenotypic analysis determined that the window for DT in Perilla seeds occurs at radicle lengths of 0-4 mm. Integrating physiological and transcriptomic analyses revealed that the loss of DT promotes the production of reactive oxygen species (ROS) and regulates oxidase activity and gene expression. This implies that DT m

SUBMITTER: Chen M 

PROVIDER: S-EPMC11566475 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature