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《Plant Physiology Communications》 2007-01
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Involvement of Protein Tyrosine Phosphatase in Signal Transduction of Salicylic Acid Regulated Stomatal Movement of Vicia faba L.

YANG Guo-Hui1, CHE Yong-Mei1, SHI Wu-Liang2, LIU Xin1,* 1College of Life Sciences, Laiyang Agricultural College, Qingdao, Shandong 266109, China; 2Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China  
The effects of protein tyrosine phosphatase (PTPase) inhibitor phenylarsine oxide (PAO), sodium vanadate (NaVO3) and Zn2+ on salicylic acid (SA) regulated Vicia faba stomatal movement were studied. The results showed that PAO (0–1 mmol·L-1), NaVO3 (0–4 mmol·L-1) and Zn2+ (0–4 mmol·L-1) had no effects on light induced stomatal opening, but inhibited the darkness or SA induced stomatal closure. It suggested that PTPase maybe participated in the signal transduction of SA regulated V. faba stomatal closure.
【Fund】: 国家自然科学基金(30370141);; 山东省教育厅基金(J04C13);; 莱阳农学院人才基金(630318)。
【CateGory Index】: Q945.1
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