College of Horticulture, Hebei Agricultural University, Baoding, Hebei, China.
Molecular Cell Biology, Botanical Institute, Karlsruhe Institute of Technology, Karlsruhe, Germany.
J Exp Bot. 2020 Jan 1;71(1):36-48. doi: 10.1093/jxb/erz419.
Cold stress is a major abiotic stress, restricting plant growth and development. Therefore, gene expression in response to cold stress and during cold acclimation has been studied intensively, including the ICE-CBF-COR pathway, as well as the modulation of this cascade by secondary messengers, for instance mitogen-activated protein kinase (MAPK) cascades. In contrast, the early events of cold perception and cold adaption have received far less attention. This is partially due to the fact that cold is a physical signal, which requires the conceptual framework to be adjusted. In this review, we address the role of microtubules in cold sensing, and propose a model whereby microtubules, while not being part of signalling itself, act as modulators of cold sensitivity. The purpose of this model is to derive implications for future experiments that will help to provide a more complete understanding of cold adaptation.
冷胁迫是一种主要的非生物胁迫，限制了植物的生长和发育。因此，人们已经深入研究了植物对冷胁迫和冷驯化的基因表达，包括 ICE-CBF-COR 途径，以及二级信使（如丝裂原活化蛋白激酶（MAPK）级联）对该级联的调节。相比之下，冷感知和冷适应的早期事件受到的关注要少得多。这部分是因为冷是一种物理信号，需要调整概念框架。在这篇综述中，我们讨论了微管在冷感中的作用，并提出了一个模型，即微管本身虽然不是信号转导的一部分，但作为冷敏感性的调节剂。该模型的目的是为未来的实验提供启示，以帮助更全面地理解冷适应。
