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Evaluation of radical scavenging system in two microalgae in response to interactive stresses of UV-B radiation and nitrogen starvation
المؤلفون المشاركون
al-Rashid, Sarah Abd al-Rahman Ibrahim
al-Ghali, Jihan
al-Shahri, Samihah
Ibrahim, Muhammad M.
Mustafa, Ahmad
المصدر
Saudi Journal of Biological Sciences
العدد
المجلد 23، العدد 6 (30 نوفمبر/تشرين الثاني 2016)، ص ص. 706-712، 7ص.
الناشر
تاريخ النشر
2016-11-30
دولة النشر
السعودية
عدد الصفحات
7
التخصصات الرئيسية
العلوم الطبية والصيدلة والعلوم الصحية
الطب البشري
الملخص EN
The effects of UV-B radiation and/or deprivation of nitrogen stresses on growth rate, some antioxidant compounds, and activities of some antioxidant enzymes, superoxide dismutase (SOD; EC1.15.1.1), ascorbate peroxidase (APx; EC1.11.1.11), guaiacol peroxidase (GUPx; EC1.11.1.7) and glutathione reductase (GR, EC 1.6.4.2), as well as the levels of total glutathione pool, UV-B absorbing pigments, malondialdehyde (MDA) and H2O2 concentrations were studied in Spirulina platensis and Dunaliella salina.
Less damage was observed in response to the combined UV-B and nitrogen deprivation as shown by growth rate and photosynthetic pigments especially in Dunaliella salina.
A significant increase in flavonoids and phenolics under dual stress was observed.
Conversely, a great reduction in malondialdehyde (MDA) and H2O2 concentrations were recorded under the combined stress compared to the effect of each stress.
Furthermore, a significant increase in GSH/GSSG ratio toward the control was recorded in response to combined stresses, whereas a significant reduction in this ratio was observed in both microalgae in response to each stress.
Increased activities of antioxidant enzymes were recorded under UV-B and nitrogen deprivation stresses.
_ 2016 The Authors.
Production and hosting by Elsevier B.V.
on behalf of King Saud University.
This is an open access article under theCCBY-NC-NDlicense (http://creativecommons.org/licenses/by-nc-nd/4.0/).
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Rashid, Sarah Abd al-Rahman Ibrahim& Ibrahim, Muhammad M.& al-Ghali, Jihan& al-Shahri, Samihah& Mustafa, Ahmad. 2016. Evaluation of radical scavenging system in two microalgae in response to interactive stresses of UV-B radiation and nitrogen starvation. Saudi Journal of Biological Sciences،Vol. 23, no. 6, pp.706-712.
https://search.emarefa.net/detail/BIM-717194
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Rashid, Sarah Abd al-Rahman Ibrahim…[et al.]. Evaluation of radical scavenging system in two microalgae in response to interactive stresses of UV-B radiation and nitrogen starvation. Saudi Journal of Biological Sciences Vol. 23, no. 6 (Nov. 2016), pp.706-712.
https://search.emarefa.net/detail/BIM-717194
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Rashid, Sarah Abd al-Rahman Ibrahim& Ibrahim, Muhammad M.& al-Ghali, Jihan& al-Shahri, Samihah& Mustafa, Ahmad. Evaluation of radical scavenging system in two microalgae in response to interactive stresses of UV-B radiation and nitrogen starvation. Saudi Journal of Biological Sciences. 2016. Vol. 23, no. 6, pp.706-712.
https://search.emarefa.net/detail/BIM-717194
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 712
رقم السجل
BIM-717194
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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