| 小麦细胞膜脂组分与抗盐性的关系 |
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| 引用本文： | 杨延明,芦翠乔,吴丁,王洪春.小麦细胞膜脂组分与抗盐性的关系[J].河南科学,1988(3). |
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| 作者姓名： | 杨延明 芦翠乔 吴丁 王洪春 |
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| 作者单位： | 河南省农业科学院，河南省农业科学院，河南省农业科学院，中国科学院上海植物生理研究所 |
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| 摘 要： | 本文选用了两个小麦品种(商丘碱麦、济源728)在人工气候室液体培养条件下,对盐渍胁迫下幼苗叶和根的细胞膜脂组分的变化进行了研究.低浓度盐溶液(0.9%)中,叶片和根系细胞膜脂脂肪酸饱和度降低;高浓度盐溶液(1.8%)中脂肪酸饱和度除叶片在第5天时低于对照以外均有所提高.低浓度盐溶液处理中亚油酸(18.2)含量比对照降低而亚麻酸(18∶3)含量提高,变化随处理时间延长而加大.高浓度盐溶液处理中,随处理时间延长亚油酸(18∶2)含量比对照降低而亚麻酸(18∶3)含量则由较低逐渐恢复至对照水平.
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| 关 键 词： | 膜脂 脂肪酸 |
RELATION BETWEEN COMPOSITION OF PROTOPLASM MEMBRANE LIPIDS AND SALT TOLERANCE OF WHEAT SEEDLINGS |
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| Yang YanMing Lu CuiQiao Wu Ding.RELATION BETWEEN COMPOSITION OF PROTOPLASM MEMBRANE LIPIDS AND SALT TOLERANCE OF WHEAT SEEDLINGS[J].Henan Science,1988(3). |
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| Authors: | Yang YanMing Lu CuiQiao Wu Ding |
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| Abstract: | Changes of protoplasm membrane lipids of two wheat varieties (ShangQiuJianMai and JiYuan 728 ) cultured in the nutrient solutions were studied in the phytotron . The fatty acid saturation degree of the protoplasm membrane lipids of the shoots and the roots was dropped in the lower concentration of salt solution ( 0.9 % ), and raised in the high concentration of salt solution (1.8 % ) except for 5-day treatment in shoots.In the lower salt concentration the content of linoleic acid (18:2 ) decreased while that of linolenic acid ( 18:3 ) increased and the changes became obvious with time.In the high salt concentration the content of linoleic acid (18:3 ) was lower than control, however the content of linolenic acid(18 :3 ) gradually reached control from a lower level. |
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| Keywords: | memrane lipid fatty acid |
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