Involvement of Ca^2 /CaM in the signal transduction of acetylcholine regulating stomatal movement |
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作者姓名: | WANGHengbin ZHANGShuqiu |
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作者单位: | [1]StateKeyLaboratoryofPlantPhsiologyandBiochemistry,CollegeofBiologicalSciences,ChinaAgriculturalUniversity,Beijing100094,China [2]StateKeyLaboratoryofPlantPhsiologyandBiochemistry,CollegeofBiologicalScien |
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基金项目: | 国家重点基础研究发展计划(973计划) |
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摘 要: | It has been known that the neurotransmitter acetylcholine (ACh) also exists in plants and is able to regulate the movement of stomata.In another aspect,Ca^2 /CaM as the second messengers have a critical role of signal transduction in stomatal guard-cell,Here we showed that Ca^2 /CaM were also involved in the ACh regulated stomatal movement,In the medium containing Ca^2 ,the Ca^2 channel blockers (NIF and Ver)and CaM inhibitors (TFP and W7 ) could neutralize the ACh induced stomatal opening,however,they are ineffective in the medium containing K^ ,Those results indicated that Ca^2 /CaM were involved in the signal transduction pathway of ACh regulating stomatal movement.
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关 键 词: | 植物细胞 气孔运动 信号转导 乙酰胆碱 调节 钙离子 Ca^2 CaM |
收稿时间: | 2002-10-25 |
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