Li Jie, Qiu Li-Yan, Zhao Fang-Gui, Hou Li-Xia, Liu Xin
College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China.
Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao. 2007 Aug;33(4):349-53.
The effects of nitric oxide (NO) and ethylene on Vicia faba L. stomatal movement were studied. The results showed that NO donor SNP (sodium nitroprusside) 10 micromol/L and ethylene 0.04% could induce stomatal closure distinctly and they could promote stomatal closure when treated together. When treated with AVG (an inhibitor of ethylene synthesis), c-PTIO (a specific scavenger of NO) and NaN(3) (an inhibitor of NR), the effects of NO- and ethylene-induced stomatal closure were inhibited but the inhibitor of nitric oxide synthase (NOS) had little effect. We presumed that there was coordinative effect between NO and ethylene in regulation of stomatal closure; ethylene could induce stomatal closure by regulating the production of nitrate reductase (NR)-dependent NO.
研究了一氧化氮（NO）和乙烯对蚕豆气孔运动的影响。结果表明，10微摩尔/升的NO供体SNP（硝普钠）和0.04%的乙烯能明显诱导气孔关闭，二者共同处理时可促进气孔关闭。用AVG（乙烯合成抑制剂）、c-PTIO（NO特异性清除剂）和NaN₃（硝酸还原酶抑制剂）处理后，NO和乙烯诱导的气孔关闭效应受到抑制，但一氧化氮合酶（NOS）抑制剂影响较小。我们推测，NO和乙烯在调节气孔关闭方面存在协同作用；乙烯可通过调节依赖硝酸还原酶（NR）的NO生成来诱导气孔关闭。
