College of Horticulture, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100094, China.
Plant Cell Physiol. 2023 Oct 16;64(10):1139-1145. doi: 10.1093/pcp/pcad068.
FAR-RED ELONGATED HYPOCOTYL3 (FHY3) and its homolog FAR-RED-IMPAIRED RESPONSE1 (FAR1) are transcription factors derived from transposases essential for phytochrome A-mediated light signaling. In addition to their essential role in light signaling, FHY3 and FAR1 also play diverse regulatory roles in plant growth and development, including clock entrainment, seed dormancy and germination, senescence, chloroplast formation, branching, flowering and meristem development. Notably, accumulating evidence indicates that the emerging role of FHY3 and FAR1 in environmental stress signaling has begun to be revealed. In this review, we summarize these recent findings in the context of FHY3 and FAR1 as integrators of light and other developmental and stressful signals. We also discuss the antagonistic action of FHY3/FAR1 and Phytochrome Interating Factors (PIFs) in various cross-talks between light, hormone and environmental cues.
远红光延长的下胚轴 3（FHY3）及其同源物远红光受损响应 1（FAR1）是由转座酶衍生而来的转录因子，对于光敏色素 A 介导的光信号至关重要。除了在光信号中的重要作用外，FHY3 和 FAR1 在植物生长发育中也发挥着多样化的调节作用，包括生物钟的驯化、种子休眠和萌发、衰老、叶绿体形成、分枝、开花和分生组织发育。值得注意的是，越来越多的证据表明，FHY3 和 FAR1 在环境胁迫信号中的新作用开始显现。在这篇综述中，我们总结了这些最新发现，同时还讨论了 FHY3/FAR1 和 Phytochrome Interating Factors（PIFs）在光和其他发育及应激信号之间的各种交叉对话中的拮抗作用。
