摘要
梭梭幼苗在H氏平衡溶液中培养至第 4天时 ,其细胞膜透性、可溶性糖和脯氨酸含量均出现明显的转折变化 ;甘露醇溶液渗透胁迫引起幼苗的细胞膜电解质渗漏率下降 ,脯氨酸含量大幅度升高 ,可溶性糖含量则呈现交替变化 ;外源ABA则对以上生理指标有不同的影响 。
By cultured for 4 days in H equilibrium solution, the cell membrane permeability, the content of soluble sugars and proline of the seedlings of xerophyte Haloxylon ammodendron (Mey.) Bge show distinct turning changes. Osmotic stress by cultured in mannitol solution results the dropping of the leakage of electrolyte through out cell membrane, rising of the content of proline by a large margin and the up\|down changes of soluble sugars. Exogenous ABA has different effects on the above physiological indexes, so it is inferred that ABA maybe not play the role as a signal transducer relating osmotic stress and the inner physiological changes at the stage of seedling of this kind of plant.
出处
《首都师范大学学报（自然科学版）》
2001年第3期65-69,共5页
Journal of Capital Normal University：Natural Science Edition
基金
国家科技部 86 3预研项目
中国科学院阜康开放生态试验站资助项目
关键词
梭梭
幼苗
渗透胁迫
ABA
可溶性糖
脯氨酸
膜透性
固沙树种
生理指标
Haloxylon ammodendron (Mey.)Bge, seedlings, osmotic stress, ABA, soluble sugars, proline, permeability of cell membrane.
