DELLA proteins negatively regulate dark-induced senescence and chlorophyll degradation in Arabidopsis through interaction with the transcription factor WRKY6

Y Zhang, Z Liu, X Wang, J Wang, K Fan, Z Li, W Lin - Plant Cell Reports, 2018 - Springer
Key message DELLA proteins' negative regulation of dark-induced senescence and
chlorophyll degradation in Arabidopsis is through interaction with WRKY6 and thus
repression of its transcriptional activities on senescence-related genes. Abstract
Senescence is an intricate and highly orchestrated process regulated by numerous
endogenous and environmental signals. Gibberellins (GAs) and their signaling components
DELLA proteins have been known to participate in the regulation of senescence. However …
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DELLA proteins negatively regulate dark-induced senescence and chlorophyll degradation in Arabidopsis through interaction with the transcription factor WRKY6.

ZYQ Zhang YongQiang, LZJ Liu ZhongJuan… - 2018 - cabidigitallibrary.org
Senescence is an intricate and highly orchestrated process regulated by numerous
endogenous and environmental signals. Gibberellins (GAs) and their signaling components
DELLA proteins have been known to participate in the regulation of senescence. However,
the mechanism of the GA-DELLA system involved in the senescence process remains
largely unclear. Darkness is a known environmental factor that induces plant senescence. In
this study, exogenous GA3 (an active form of GA) accelerated but paclobutrazol (a specific …
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