Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, 100083 Beijing, China.
Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083 Beijing, China.
Int J Mol Sci. 2018 Jan 23;19(2):15. doi: 10.3390/ijms19020015.
Plants facing the seasonal variations always need a growth restraining mechanism when temperatures turn down. C-repeat binding factor () genes work essentially in the cold perception. Despite lots of researches on , the multiple crosstalk is still interesting on their interaction with hormones and dormancy-associated MADS (DAM) genes in the growth and dormancy control. Therefore, this study highlights roles of in cold-induced dormancy from different orgens. And a sense-response relationship between and is exhibited in this process, jointly regulated by six and . Meantime, GA3 and ABA showed negative and positive correlation with expression levels, respectively. We also find a high correlation between IAA and Finally, we display the interaction mode of PmCBFs and PmDAMs, especially PmCBF1-PmDAM1. These results can disclose another view of molecular mechanism in plant growth between cold-response pathway and dormancy regulation together with genes and hormones.
植物在面对季节性变化时，当温度下降时，总是需要一种生长抑制机制。C-重复结合因子（CBF）基因在低温感知中起着重要作用。尽管对 CBF 进行了大量研究，但它们与激素和休眠相关的 MADS（DAM）基因在生长和休眠控制中的相互作用仍然很有趣。因此，本研究从不同器官强调了 CBF 在冷诱导休眠中的作用。在这个过程中，CBF 和 DREB1A 之间表现出一种感应-反应关系，共同受六个 CBF 调节因子调控。同时，GA3 和 ABA 与 CBF1A 表达水平呈负相关和正相关。我们还发现 IAA 和 CBF1A 之间存在高度相关性。最后，我们展示了 PmCBFs 和 PmDAMs 之间的相互作用模式，特别是 PmCBF1-PmDAM1。这些结果可以揭示植物生长中冷响应途径和休眠调控与基因和激素之间的分子机制的另一个视角。
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