Building Heat-Resilient Reproduction: The XBAT31–HSFB2a/B2b Module
DOI:
https://doi.org/10.66835/psh.2026.e0002Keywords:
Heat stress, Crop, Reproduction, Fertility, MechanismAbstract
Reproductive development is particularly vulnerable to heat stress, yet its protective mechanisms remain poorly understood. Recent work identifies the Arabidopsis E3 ligase XBAT31 as a positive regulator of reproductive thermotolerance by promoting degradation of the repressors HSFB2a and HSFB2b. Loss of XBAT31 reduces HSF/HSP expression and fertility under heat stress, defining the XBAT31–HSFB2a/HSFB2b module as a promising target for heat-resilient crop engineering.
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Copyright (c) 2026 Sana Basharat, Antt Htet Wai (Author)
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