Hormonal regulation in adventitious roots and during their emergence under waterlogged conditions in wheat.

ABSTRACT: To gain insights into the molecular mechanisms underlying hormonal regulation in adventitious roots and during their emergence under waterlogged conditions in wheat, the present study investigated transcriptional regulation of genes related to hormone metabolism and transport in the root and stem node tissues. Waterlogging-induced inhibition of axile root elongation and lateral root formation, and promotion of surface adventitious and axile root emergence and aerenchyma formation are associated with enhanced expression levels of ethylene biosynthesis genes, ACS7 and ACO2, in both tissues. Inhibition of axile root elongation is also related to increased root indole acetic acid (IAA) and jasmonate (JA) levels that are associated with up-regulation of specific IAA biosynthesis/transport (TDC,

SUBMITTER: Nguyen TN 

PROVIDER: S-EPMC6054230 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature