Dhaliwal Lakhvir Kaur, Angeles-Shim Rosalyn B
Department of Plant and Soil Science, Davis College of Agricultural Sciences and Natural Resources, Texas Tech University, Lubbock, TX 79409-2122, USA.
Plants (Basel). 2022 Dec 6;11(23):3400. doi: 10.3390/plants11233400.
Cold stress breeding that focuses on the improvement of chilling tolerance at the germination stage is constrained by the complexities of the trait which involves integrated cellular, biochemical, hormonal and molecular responses. Biological membrane serves as the first line of plant defense under stress. Membranes receive cold stress signals and transduce them into intracellular responses. Low temperature stress, in particular, primarily and effectively affects the structure, composition and properties of cell membranes, which ultimately disturbs cellular homeostasis. Under cold stress, maintenance of membrane integrity through the alteration of membrane lipid composition is of prime importance to cope with the stress. This review describes the critical role of cell membranes in cold stress responses as well as the physiological and biochemical manifestations of cold stress in plants. The potential of cell membrane properties as breeding targets in developing strategies to improve cold germination ability is discussed using cotton ( L.) as a model.
专注于提高种子萌发期耐冷性的冷胁迫育种受到该性状复杂性的限制，该性状涉及细胞、生化、激素和分子的综合反应。生物膜是植物在胁迫下的第一道防线。膜接收冷胁迫信号并将其转化为细胞内反应。特别是低温胁迫主要且有效地影响细胞膜的结构、组成和特性，最终扰乱细胞内稳态。在冷胁迫下，通过改变膜脂组成来维持膜的完整性对于应对胁迫至关重要。本文综述了细胞膜在冷胁迫反应中的关键作用以及植物冷胁迫的生理生化表现。以棉花为模型，讨论了细胞膜特性作为育种目标在提高冷萌发能力策略中的潜力。
