State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.
Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, China.
Plant Signal Behav. 2023 Dec 31;18(1):2171360. doi: 10.1080/15592324.2023.2171360.
Plant microtubules (MTs) form highly dynamic and distinct arrays throughout the cell cycle and are essential for cell and organ morphogenesis. A plethora of microtubule associated-proteins (MAPs), both conserved and plant-specific, ensure the dynamic response of MTs to internal and external cues. The MAP215 family MT polymerase/nucleation factor and the MT severing enzyme katanin are among the most conserved MAPs in eukaryotes. Recent studies have revealed unexpected functional and physical interactions between MICROTUBULE ORGANIZATION 1 (MOR1), the Arabidopsis homolog of MAP215, and KATANIN 1 (KTN1), the catalytic subunit of katanin. In this minireview, we provide a short overview on current understanding of the functions and regulations of MOR1 and katanin in cell morphogenesis and plant growth and development.
植物微管（MTs）在整个细胞周期中形成高度动态和独特的排列，对细胞和器官形态发生至关重要。大量的微管相关蛋白（MAPs），包括保守和植物特异性的，确保了 MTs 对内部和外部信号的动态响应。MAP215 家族的 MT 聚合酶/成核因子和 MT 切断酶katanin 是真核生物中最保守的 MAPs 之一。最近的研究揭示了 MICROTUBULE ORGANIZATION 1（MOR1）与 KATANIN 1（KTN1）之间出人意料的功能和物理相互作用，MOR1 是 MAP215 的拟南芥同源物，而 KTN1 是 katanin 的催化亚基。在这篇综述中，我们简要概述了目前对 MOR1 和 katanin 在细胞形态发生和植物生长发育中的功能和调控的理解。
