Plasma membrane H<sup>+</sup>-ATPase activation increases global transcript levels and promotes the shoot growth of light-grown Arabidopsis seedlings.
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ABSTRACT: Plant cell growth requires the elongation of cells mediated by cell wall remodelling and turgor pressure changes. The plasma membrane (PM) H+-ATPase facilitates both cell wall loosening and turgor pressure changes by acidifying the apoplast of cells, referred to as acid growth. The acid growth theory is mostly established on the auxin-induced activation of PM H+-ATPase in non-photosynthetic tissues. However, how PM H+-ATPase affects the growth in photosynthetic tissues of Arabidopsis remains unclear. Here, a combination of transcriptomics and cis-regulatory element analysis was conducted to identify the impact of PM H+-ATPase on global transcript levels and the molecular mechanism downstream of the PM H+-ATPase. The PM H+-AT
SUBMITTER: Kinoshita SN
PROVIDER: S-EPMC11804978 | biostudies-literature | 2025 Feb
REPOSITORIES: biostudies-literature
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