EPISODE · Jun 22, 2026 · 17 MIN
1166-冷诱导肽信号传导保障番茄与水稻花粉抗寒力及产量
from 聊聊Sci
这篇研究揭示了植物在寒冷环境下保障水分和产量的分子机制。研究发现，番茄中的小信号肽SlRGF9和SlRGF10在低温诱导下激活，并与细胞表面的受体复合物结合，从而维持花粉的韧性。这一信号轴通过调节钙离子流入，确保了花粉发育过程中绒毡层的正常降解，防止了因寒冷导致的花粉败育。通过基因手段上调这些信号肽，研究者成功减少了番茄高达52%的产量损失。这种肽信号传导机制在双子叶和单子叶植物中具有保守性，例如在水稻中应用同样能显著提升其抗寒性。该成果为开发气候智能型农业提供了重要策略，有助于应对极端气候对全球粮食安全的威胁。References:Chen S, Zou Y, Cui H, et al. Cold-induced peptide signalling secures pollen resilience and crop yield[J]. Nature, 2026: 1-10.前往小宇宙评论区与主播互动
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1166-冷诱导肽信号传导保障番茄与水稻花粉抗寒力及产量
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