School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
Trends Plant Sci. 2020 Jun;25(6):538-548. doi: 10.1016/j.tplants.2020.01.008. Epub 2020 Feb 21.
Vacuoles are the largest membrane-bounded organelles and have essential roles in plant growth and development, but several important questions on the biogenesis and dynamics of lytic vacuoles (LVs) remain. Here, we summarize and discuss recent research and models of vacuole formation, and propose, with testable hypotheses, that besides inherited vacuoles, plant cells can also synthesize LVs de novo from multiple organelles and routes in response to growth and development or external factors. Therefore, LVs may be further classified into different subgroups and/or populations with different pH, cargos, and functions, among which multivesicular body (MVB)-derived small vacuoles are the main source for central vacuole formation in arabidopsis root cortical cells.
液泡是最大的膜结合细胞器，在植物生长和发育中具有重要作用，但关于溶酶体（LVs）的生物发生和动态仍有几个重要问题。在这里，我们总结和讨论了液泡形成的最新研究和模型，并提出了一些可测试的假设，即除了遗传液泡外，植物细胞还可以从头合成新的 LVs，从多个细胞器和途径响应生长和发育或外部因素。因此，LVs 可以进一步分为不同的亚群和/或群体，具有不同的 pH 值、货物和功能，其中多泡体（MVB）衍生的小液泡是拟南芥根皮层细胞中中央液泡形成的主要来源。
