| 钙和钙调素对玉米幼苗抗旱性的调控 |
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| 引用本文： | 龚明,杜朝昆.钙和钙调素对玉米幼苗抗旱性的调控[J].西北植物学报,1996,16(3):214-220. |
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| 作者姓名： | 龚明 杜朝昆 |
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| 作者单位： | 云南师范大学生命科学系 |
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| 基金项目： | 国家自然科学基金,云南省应用基础研究基金 |
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| 摘 要： | 用２０ｍｍｏｌ／ＬＣａＣｌ２浸种处理能显著提高玉米种子在干旱胁迫下的萌发率。改善玉米幼苗的生长状况，减轻胚根在干旱胁迫下的膜伤害，提高其活力和玉米幼苗在强干旱迫下的存活率。
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| 关 键 词： | 调钙蛋白 钙调素 钙 抗旱性 玉米 |
INVOLVEMENT OF CALCIUM AND CALMODULIN IN THE REGULATION OF DEOUGHT RESISTANCE IN ZEA MAYS SEEDLINGS |
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| Gong Ming,Du Chaokun and Xu Wenzhong.INVOLVEMENT OF CALCIUM AND CALMODULIN IN THE REGULATION OF DEOUGHT RESISTANCE IN ZEA MAYS SEEDLINGS[J].Acta Botanica Boreali-Occidentalia Sinica,1996,16(3):214-220. |
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| Authors: | Gong Ming Du Chaokun and Xu Wenzhong |
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| Abstract: | The effects of Ca2+ and calmodulin treatments on the drought resistance of maizeseedlings were studied in this paper. Soaking maize seeds with 20 mmol/L CaCl2 solutionsignificantly increased their germination percentage, improved the growth of theseedlings,alliviated the membrane damage of maize embryonic roots,enhanced their vitality and the survival percentage of maize seedlings under drought stress. However,thiscalcium-enhanced drought resistance could be weakened by the treatment of calmodulininhibitors CPZ. In addition, CaCl2 treatment also raised the proline content of theseedlings under drought stress,which could be one of the physiological bases for the enhancement of drought resistance by CaCl2 in the maize seedlings. |
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| Keywords: | cacium calmodulin drought resistance proline Zea mays |
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