Guard-cell phytochromes impact seedling photomorphogenesis and rosette leaf morphology.
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ABSTRACT:
SUBMITTER: Oh S
PROVIDER: S-EPMC8808294 | biostudies-literature | 2022
REPOSITORIES: biostudies-literature
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Guard-cell phytochromes impact seedling photomorphogenesis and rosette leaf morphology.
Oh Sookyung S Kong Que Q Montgomery Beronda L BL
microPublication biology 20220131
Using a previously established transgenic approach to inactivate phytochrome chromophore synthesis in specific organs or tissues, we used a guard cell-specific promoter to induce phytochrome deficiencies in guard cells of <i>Arabidopsis thaliana</i>. Analyses of multiple homozygous lines depleted of phytochromes in stomatal guard cells indicated elongated hypocotyls specifically in red and far-red growth conditions. Furthermore, rosette leaves of adult plants with guard cell-specific phytochrome ...[more]
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