کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5745405 1618662 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Original articleEffects of water-deficit stress and paclobutrazol on growth, relative water content, electrolyte leakage, proline content and some antioxidant changes in Curcuma alismatifolia Gagnep. cv. Chiang Mai Pink
ترجمه فارسی عنوان
مقاله پژوهشی اثرات تنش کم آب و پکلوباتازول بر رشد، محتوای نسبی آب، نشت الکترولیتی، محتوای پرولین و برخی از تغییرات آنتی اکسیدانی در کورکومای آلسیسمافیولیا گاگپ. رزومه. چیانگ مای پینک
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بوم شناسی
چکیده انگلیسی

Effects of water-deficit stress and paclobutrazol (PBZ) on the physiological and biochemical changes in Curcuma alismatifolia Gagnep. cv. Chiang Mai Pink (Zingiberaceae) were investigated. One hundred rhizomes were grown for 30-35 days and then divided into the following 4 treatments: (1) well-watered, (2) not watered, (3) well-watered and treated with 1500 ppm PBZ being applied once to the soil, and (4) not watered but treated with 1500 ppm PBZ. After 50 days of growth, watering was withheld for 30 days. After water stress was initiated, plant height, plant fresh weight, soil water content, relative water content (RWC), electrolyte leakage (EL), proline content, vitamin C and E content, as well as the activities of catalase (CAT) and superoxide dismutase (SOD) in the leaves were determined every 10 days. The results showed that water-deficit stress decreased plant height and plant fresh weight, whereas this stress and PBZ did not result in a decrease in these parameters. Water stress reduced RWC, but induced EL and proline content in the leaves. However, the leaves showed opposite results when PBZ was added to the treatments. Some antioxidants such as vitamin C, vitamin E, and the activities of CAT and SOD were induced in the leaves by PBZ. Moreover, the content of vitamin C, vitamin E and CAT activity were higher in relation to water-deficit stress and PBZ treatments. This indicates that PBZ induced a number of some physiological and biochemical adaptations (maintaining growth and RWC, decreasing EL and proline content, increasing the vitamin C and vitamin E levels, and CAT and SOD activities) that enable the Curcuma plant to tolerate drought.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Saudi Journal of Biological Sciences - Volume 24, Issue 7, November 2017, Pages 1505-1512
نویسندگان
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