Volume 10, Issue 44 (vol. 10, no. 44 2021)                   2021, 10(44): 177-192 | Back to browse issues page

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Chalekaei M, Abbasi A, Dehastani A. phytohormonal changes in Aeluropus littoralis halophyte to salt stress. Plant Process and Function 2021; 10 (44) :177-192
URL: http://jispp.iut.ac.ir/article-1-1478-en.html
1- University of Tehran
2- University of Tehran , rezabbasi@ut.ac.ir
Abstract:   (1847 Views)
Hormonal changes of Aeluropus littoralis (Gouan) Parl. halophyte under none- stress, moderate and severe salinity stress condition (0, 250, and 600 mM NaCl, respectively) at four time-courses (3, 6, 12, 24 h) were studied. The results showed that the Abscisic acid (ABA) content increased after one day at all stress levels, however, Gibberellic acid (GA3) levels also significantly decreased under severe stress compared to mild stress. The level of Salicylic acid (SA) decreased slightly compared to the control at the beginning of mild stress condition, but in severe stress, this decrease was more noticeable. Jasmonic acid (JA) content was not different at the first of stress, but with increased stress time, its content increased and in severe stress, it was more than mild stress and in mild stress, it was more than the control. It seems that the plant needs at least 24 hours to respond to stress because in the first time (3 hours) the content of hormones changed compared to the control, which indicates the perception of stress, but in continues the levels of the hormone had limited changes, and within 24 hours, the plant produced a completely different response to its hormonal content than the control. In conclusion, the results of this study will be useful in providing a deeper understanding of the hormonal mechanism of salinity tolerance.
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Type of Study: Research | Subject: Plant Growth Regulators
Received: 2020/11/30 | Accepted: 2021/04/19 | Published: 2021/11/5

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