Effects of drought stress on total phenolics, phenolic acids, polyamines and some organic acids in two important Iranian grapevine cultivars
- سال انتشار: 1398
- محل انتشار: مجله فرآیند و کارکرد گیاهی، دوره: 8، شماره: 34
- کد COI اختصاصی: JR_JISPP-8-34_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 179
نویسندگان
Grape and Raisin Research Institute, Malayer University, Malayer, Iran
Grape and Raisin Research Institute, Malayer University, Malayer, Iran
Department of Systems Biology, Agricultural Biotechnology Research Institute of Iran, Karaj, Iran
Department of agronomy and plant breeding, Faculty of Agriculture, Zanjan University, Zanjan, Iran
Horticulture Crops Research Department, Qazvin Agricultural and Natural Resources Research and Education Center, AREEO, Qazvin, Iran
چکیده
This study was conducted to assess the induced-changes in the content of total phenolics and individual phenolic acids, total and individual polyamines and some organic acids in the leaves of two important Iranian grapevine cultivars under different durations of drought stress, and to determine their involvement in grapevine drought tolerance. For this purpose, ‘Yaghuti’ as a drought-tolerant and ‘Bidanesefid’ as a drought-sensitive vine were subjected to ۶, ۱۲ and ۱۸ days of drought stress. Our results showed that as compared to respective control vines, ۱۸ days drought stressed plants of ‘Yaghuti’ and ‘Bidanesefid’ had the highest concentration of total phenolics (۳۱.۵۵ vs. ۲۷.۴۰ mg.g-۱Fw), total polyamines (۹۸.۴۰ vs. ۷۰.۱۱ ng.g-۱Fw) and total organic acids (۳.۳۰ vs. ۳.۰۸ mg.۱۰۰g-۱Fw). Based on comparative analyses of individual phenolic acids, it seems that in drought stress condition and especially in ‘Yaghuti’, Caffeic acid and Gallic acid can be used as biochemical markers of stress responses. In our study, only ۱۸ days of drought stress resulted in a significant increase in spermidine concentration in ‘Yaghuti’ cultivar while putrescine and spermine concentration of this cultivar increased at the onset of stress, so it seems that these two polyamines have a more important role in drought tolerance of ‘Yaghuti’. In the current study, different duration of drought stress remarkably increased the amounts of individual organic acids (tartaric, malic, oxalic and ascorbic acid) in both cultivars. The contents of quantified organic acids were not often significantly different between the two cultivars in the same durations of drought stress. Totally it seems phenolic acids and polyamines are more effective markers for drought resistance investigation of vines.کلیدواژه ها
Yaghuti, Gallic acid, malic acid, putrescine, Bidanesefidاطلاعات بیشتر در مورد COI
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