کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5748040 | 1618925 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Alleviating effects of calcium on cobalt toxicity in two barley genotypes differing in cobalt tolerance
ترجمه فارسی عنوان
کاهش اثرات کلسیم بر روی سمیت کبالت در دو ژنوتایپ جو که در تحمل کبالت متفاوتند
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کلمات کلیدی
کمردرد جو، کلسیم، کبالت، استرس اکسیداتیو، تحمل،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
Cobalt (Co) contamination in soils is becoming a severe issue in environment safety and crop production. Calcium (Ca), as a macro-nutrient element, shows the antagonism with many divalent heavy metals and the capacity of alleviating oxidative stress in plants. In this study, the protective role of Ca in alleviating Co stress was hydroponically investigated using two barley genotypes differing in Co toxicity tolerance. Barley seedlings exposed to 100 µM Co showed the significant reduction in growth and photosynthetic rate, and the dramatic increase in the contents of reactive oxygen species (ROS), malondialdehyde (MDA), reduced glutathione (GSH) and oxidized glutathione (GSSG), and the activities of anti-oxidative enzymes, with Ea52 (Co-sensitive) being much more affected than Yan66 (Co-tolerant). Addition of Ca in growth medium alleviated Co toxicity by reducing Co uptake and enhancing the antioxidant capacity. The effect of Ca in alleviating Co toxicity was much greater in Yan66 than in Ea52. The results indicate that the alleviation of Co toxicity in barley plants by Ca is attributed to the reduced Co uptake and enhanced antioxidant capacity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 139, May 2017, Pages 488-495
Journal: Ecotoxicology and Environmental Safety - Volume 139, May 2017, Pages 488-495
نویسندگان
Jonas Lwalaba Wa Lwalaba, Gerald Zvobgo, Liangbo Fu, Xuelei Zhang, Theodore Mulembo Mwamba, Noor Muhammad, Robert Prince Mukobo Mundende, Guoping Zhang,