Abstract:
Sugarcane (Saccharum officinarum) is an important crop, native to tropical and subtropical regions and it is a major source of sugar and Bioenergy in the world. Abiotic stress is defined as environmental conditions that reduce growth and yield below the optimum level. To tolerate these abiotic stresses, plants initiate several molecular, cellular, and physiological changes. These responses to abiotic stresses are dynamic and complex; they may be reversible or irreversible. Waterlogging is an abiotic stress phenomenon that drastically reduces the growth and survival of sugarcane, which leads to a 15-45% reduction in cane\'s yield. The extent of damage due to waterlogging depends on genotypes, environmental conditions, stage of development and duration of stress. An improved understanding of the physiological, biochemical, and molecular responses of sugarcane to waterlogging stress could help to develop new breeding strategies to sustain high yields against this situation. The present review offers a summary of recent findings on the adaptation of sugarcane to waterlogging stress in terms of growth and development, yield and quality, as well as biochemical and adaptive-molecular processes that may contribute to flooding tolerance.
摘要:
甘蔗是一种重要的作物,原产于热带和亚热带地区,是世界上糖和生物能源的主要来源。非生物胁迫被定义为降低生长和产量低于最佳水平的环境条件。为了忍受这些非生物胁迫,植物启动几个分子,细胞,和生理变化。这些对非生物胁迫的反应是动态的和复杂的;它们可以是可逆的或不可逆的。淹水是一种非生物胁迫现象,会极大地降低甘蔗的生长和存活,这导致甘蔗产量减少15-45%。水涝造成的损害程度取决于基因型,环境条件,发育阶段和压力持续时间。提高对生理的理解,生物化学,和分子反应的甘蔗对淹水胁迫可能有助于开发新的育种策略,以维持高产。本综述总结了甘蔗在生长和发育方面适应涝灾胁迫的最新发现,产量和质量,以及可能有助于抗洪性的生化和适应性分子过程。