| 马光恕,廉华,靳亚忠,刘芳.海藻糖对NaCl胁迫下甜瓜幼苗生长的影响[J].广东农业科学,2013,40(16):40-43 |
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海藻糖对NaCl胁迫下甜瓜幼苗生长的影响 |
| Effect of trehalose on the growth of muskmelon seedlings under NaCl Stress |
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| DOI： |
| 中文关键词: 海藻糖 NaCl胁迫 瓜幼苗 甜瓜 |
| 英文关键词: trehalose NaCl stress muskmelon seedlings muskmelon |
| 基金项目: |
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| 摘要点击次数: 1444 |
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| 中文摘要: |
| 为了解海藻糖对NaCl 胁迫下甜瓜幼苗生长的影响,采用叶面喷施方式,研究了不同浓度海藻糖对0.6%NaCl 溶液胁迫下甜瓜幼苗生长的影响。结果表明：在0.6%NaCl胁迫下，甜瓜幼苗株高、茎粗、鲜重、干重、叶面积和壮苗指数均显著下降；利用不同浓度海藻糖处理后，盐胁迫下的甜瓜幼苗各项形态指标得到改善，其中以0.4%浓度的海藻糖处理最好。海藻糖对NaCl 胁迫下甜瓜幼苗各项生理生化指标也起到了缓解作用。与0.6%NaCl胁迫相比，利用不同浓度海藻糖处理后的根系活力与可溶性糖含量得到提高，而叶片MDA 含量和细胞膜相对透性降低。各种海藻糖处理中，以0.3%、0.4%海藻糖处理效果最好，有效地缓解了甜瓜盐害。 |
| 英文摘要: |
| In order to understand the effects of trehalose on the growth of muskmelon seedlings, using foliar spraying treatment method, muskmelon seedlings was designed with different concentrations of trehalose on 0.6%NaCl solution under stress. The results showed that plant height, stem diameter, fresh weight, dry weight, leaf area and strong seedlings index of muskmelon seedlings were significantly decreased under 0.6%NaCl stress, while morphological indexes of muskmelon seedlings under salt stress were improved, with 0.4% concentration of trehalose treatment was the best. Trehalose had mitigative effect under NaCl stress on physiological and biochemical indexes of muskmelon seedlings. Compared with 0.6%NaCl stress, root activity and dissolved sugar content were increased, and MDA content and cell relative permeability were decreased using different concentrations of trehalose treatments, with 0.3%, 0.4% trehalose treatment had the best effect, effectively relieved the salt stress of muskmelon. |
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