| CaCl2对番木瓜幼苗酸雨伤害的生理保护效应 |
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| 引用本文： | 肖艳,黄建昌.CaCl2对番木瓜幼苗酸雨伤害的生理保护效应[J].仲恺农业技术学院学报,2005,18(1):1-4. |
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| 作者姓名： | 肖艳 黄建昌 |
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| 作者单位： | 仲恺农业技术学院园艺园林系,广东,广州,510225 |
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| 摘 要： | 用30 mmol/L的CaCl2预处理番木瓜(Carica papaya L.)幼苗,结果表明,钙预处理能有效减缓番木瓜幼苗因酸雨胁迫引起的光合速率、叶绿素含量的下降,增加超氧歧化酶(SOD)活性,减少膜质过氧化产物丙二醛(MDA)含量,降低细胞质膜透性,维持细胞汁液pH值稳定性,减轻酸雨对番木瓜幼苗的酸致损伤.
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| 关 键 词： | 钙 番木瓜(Carica papaya L.) 酸雨伤害 保护效应 |
| 文章编号： | 1006-0774(2005)01-0001-04 |
| 修稿时间： | 2004年7月5日 |
The physiological protective effect of CaCl2 on papaya on seedlings stressed by acid rain |
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| XIAO Yan,HUANG Jian-chang.The physiological protective effect of CaCl2 on papaya on seedlings stressed by acid rain[J].Journal of Zhongkai Agrotechnical College,2005,18(1):1-4. |
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| Authors: | XIAO Yan HUANG Jian-chang |
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| Abstract: | The protective effect of calcium on papaya (Carica papayaL.)seedlings stressed by simulated acid rain was studied. When papaya seedlings were sprayed with 30 mmol/L CaCl_2 twice (once every 24 h), the damage to papaya seedlings caused by acid rain at pH 3.0 was reduced. Further studies showed that CaCl_2 could raise photosynthetic rate, chlorophyll content and Ca~(2+) content, increas SOD activity, decreas MDA content, reduced cell membrane permeability maintain the stability of cytosol pH value of papaya seedlings. |
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| Keywords: | papaya (Carica papayaL ) calcium acid rain protective effect |
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