Molecular mechanisms of Beta vulgaris cold-induced secondary dormancy raw data

Here we show that prolonged incubation of sugar beet fruits at low temperature can induce secondary nondeep physiological dormancy of apparently nondormant crop species. The physiological and biophysical mechanisms underpinning this cold-induced secondary dormancy include the chilling-induced accumulation of abscisic acid in the seeds, a reduction in the embryo growth potential and a block in weakening of the endosperm covering the embryonic root.

本研究表明，将甜菜果实置于低温环境下长时间孵育，可诱导原本表观无休眠的作物产生次级非深度生理休眠（secondary nondeep physiological dormancy）。支撑该低温诱导次级休眠的生理与生物物理机制包括：低温诱导种子内脱落酸（abscisic acid）积累、胚生长势降低，以及包裹胚根的胚乳弱化过程受阻。