Journal
JOURNAL OF CHEMICAL ECOLOGY
Volume 27, Issue 2, Pages 327-342Publisher
SPRINGER
DOI: 10.1023/A:1005632506230
Keywords
abscisic acid; Iris hexagona; jasmonic acid; indole-3-acetic acid; phytohormones; salicylic acid; salinity; stress
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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.
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