| 壳聚糖对芒果离体叶片渗透胁迫的缓解效应 |
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| 引用本文： | 刘晚苟,黄小明,杨秀坚.壳聚糖对芒果离体叶片渗透胁迫的缓解效应[J].干旱地区农业研究,2004,22(4):195-197. |
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| 作者姓名： | 刘晚苟 黄小明 杨秀坚 |
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| 作者单位： | 湛江师范学院生物系,广东,湛江,524048 |
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| 基金项目： | 湛江师范学院专项研究项目(No.Z0110) |
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| 摘 要： | 研究不同浓度壳聚糖溶液对芒果(Mangiferaindica)离体叶片在20%聚乙二醇(PEG-6000)渗透胁迫条件下生理生化的影响,结果表明,渗透胁迫下,壳聚糖可减缓叶片中水分的丧失以及叶绿素含量的下降,并能提高过氧化物酶活性和增加脯氨酸含量。因此,壳聚糖可有效缓解渗透胁迫对植物的损伤,提高植物的抗旱性。
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| 关 键 词： | 壳聚糖 芒果 渗透胁迫 |
| 文章编号： | 1000-7601(2004)04-0195-03 |
| 修稿时间： | 2003年12月6日 |
Alleviatory effects of chitosan on detached mango leaves under osmotic stress |
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| LIU Wan-gou,HUANG Xiao-ming,YANG Xiu-jian.Alleviatory effects of chitosan on detached mango leaves under osmotic stress[J].Agricultural Research in the Arid Areas,2004,22(4):195-197. |
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| Authors: | LIU Wan-gou HUANG Xiao-ming YANG Xiu-jian |
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| Abstract: | The effect of chitosan was observed on mango (Mangifera indica) detached leaves that suffered 20% PEG-6000 osmotic stress. The results showed that the relative water content (RWC), Chlorophyll content and proline content of leaves treated with chitosan were higher than those of CK. Meanwhile, chitosan treatment enhanced peroxidase (POD) activities. It is concluded that chitosan can effectively alleviate the damage of osmotic stress to plants, hence improving drought resistance. |
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| Keywords: | chitosan Mangifera indica osmotic stress |
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