Integrated morphological, physiological, and transcriptomic analyses uncover the mechanisms of waterlogging tolerance in <i>Sorghum bicolor</i> (L.).

ABSTRACT: Sorghum (Sorghum bicolor L.) is a vital global crop often cultivated in waterlogging-prone regions. However, its productivity is severely limited by waterlogging stress, which inhibits growth and significantly reduces yields. To address this, we investigated the physiological and molecular mechanisms of waterlogging tolerance by comparing a tolerant variety 'S208' with a sensitive one 'S015'. After 12 days of waterlogging, 'S208' exhibited markedly less reduction in plant height, stem thickness, and leaf area. It also developed more and longer adventitious roots and, after 6 days, formed a significantly higher proportion of aerenchyma Physiological assays revealed that the activities of key anaerobic respiratory enzymes, including pyruvate decarboxylase (PDC), lactate dehydrogenase

SUBMITTER: Zhang R 

PROVIDER: S-EPMC12719275 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature