Wang Y, Mopper S, Hasenstein K H
Biology Department, University of Louisiana at Lafayette Lafayette, Louisiana 70504-2451, USA.
J Chem Ecol. 2001 Feb;27(2):327-42. doi: 10.1023/a:1005632506230.
Phytohormones play critical roles in regulating plant responses to stress. We investigated the effects of salinity on abscisic acid (ABA), indole-3-acetic acid (IAA), salicylic acid (SA), and jasmonic acid (JA) in leaves, stalks, fruits, and seeds of Iris hexagona, a native wetland species. Using gas chromatography-mass spectroscopy with selected ion monitoring, our experiments demonstrated significant and different short- and long-term changes in iris phytohormones. ABA and JA generally increased and IAA and SA declined in response to salinity. We conclude that these phytohormones may have separate and interactive effects on how plants respond and adapt to stress in natural environments.
植物激素在调节植物对胁迫的反应中起着关键作用。我们研究了盐分对本地湿地物种六棱鸢尾的叶片、茎、果实和种子中脱落酸（ABA）、吲哚-3-乙酸（IAA）、水杨酸（SA）和茉莉酸（JA）的影响。通过使用带有选择离子监测的气相色谱-质谱联用仪，我们的实验证明了鸢尾植物激素存在显著且不同的短期和长期变化。响应盐分胁迫时，ABA和JA通常增加，而IAA和SA下降。我们得出结论，这些植物激素可能对植物在自然环境中应对和适应胁迫的方式具有单独和相互作用的影响。
