Schematic diagram of BpERF1A regulating the drought resistance mechanism of brich. (IMAGE)
Caption
A proposed PlMYB3RL-PlSGRL regulatory model under high-temperature stress in P. lactiflora. Under normal conditions, PlMYB3RL is expressed at a basal level, which only weakly promotes the transcription of PlSGRL. Consequently, the expression of PlSGRL remains relatively low, and the rate of chlorophyll degradation is maintained at a low level. In contrast, under high - temperature stress, the expression of PlMYB3RL is upregulated and forms homodimers, which significantly enhances the transcriptional activation of PlSGRL. As a result, the elevated PlSGRL expression accelerates the rate of chlorophyll degradation.
Credit
Horticulture Research
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CC BY