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Silicon supplementation modulates antioxidant system and osmolyte accumulation to balance salt stress in Acacia gerrardii Benth
المؤلفون المشاركون
Abd Allah, al-Sayyid Fathi
Hashim, Abir
al-Qarawi, Abd al-Aziz Abd Allah
Malik, Jahangir Ahmad
al-Haqil, Asma A.
المصدر
Saudi Journal of Biological Sciences
العدد
المجلد 26، العدد 7 (30 نوفمبر/تشرين الثاني 2019)، ص ص. 1856-1864، 9ص.
الناشر
تاريخ النشر
2019-11-30
دولة النشر
السعودية
عدد الصفحات
9
التخصصات الرئيسية
الموضوعات
الملخص EN
Experiments were conducted to investigate the role of silicon (Si, 2 mM potassium silicate - K2SiO3) in ameliorating the salinity (200 mM NaCl) triggered growth retardation, photosynthetic inhibition and the oxidative damage in Talh trees (Acacia gerrardii Benth).
Salinity stress reduced length and dry biomass accumulation of root and shoot which were significantly improved by Si supplementation.
Application of Si enhanced the synthesis of photosynthetic pigments including chlorophyll a, chlorophyll b, total chlorophylls and carotenoids resulting in greater photosynthetic activity measured in terms of net CO2 assimilation.
Stomatal conductance and transpiration rate were declined due to NaCl treatment and supplementation of Si ameliorated the negative impact of NaCl on these attributes and was significantly improved when applied to normal grown plants.
Further, lipid peroxidation was more in NaCl stressed plants without Si as compared to those supplemented with Si.
Si protected Talh trees from NaCl induced oxidative damage by improving the activity of antioxidant enzymes (SOD, POD, CAT, APX and GR) and the content of ascorbic acid.
Accumulation of compatible osmolytes including proline and glycine betaine was increased due to Si supplementation leading to improved growth under saline conditions in addition Si supplementation mitigated the deleterious effects of NaCl on flavonoid content.
More importantly Si supplementation prevented excess uptake of Na and also protected the ill effects of excess Na on the uptake and accumulation of K and Ca resulting in significant decline in Na/K ratio.
In conclusion, Si mitigates the negative effects of NaCl in A.
gerrardii by modifying nutrient uptake, osmolytes accumulation and up-regulating antioxidant system.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Haqil, Asma A.& al-Qarawi, Abd al-Aziz Abd Allah& Hashim, Abir& Malik, Jahangir Ahmad& Abd Allah, al-Sayyid Fathi. 2019. Silicon supplementation modulates antioxidant system and osmolyte accumulation to balance salt stress in Acacia gerrardii Benth. Saudi Journal of Biological Sciences،Vol. 26, no. 7, pp.1856-1864.
https://search.emarefa.net/detail/BIM-910434
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Haqil, Asma A.…[et al.]. Silicon supplementation modulates antioxidant system and osmolyte accumulation to balance salt stress in Acacia gerrardii Benth. Saudi Journal of Biological Sciences Vol. 26, no. 7 (Nov. 2019), pp.1856-1864.
https://search.emarefa.net/detail/BIM-910434
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Haqil, Asma A.& al-Qarawi, Abd al-Aziz Abd Allah& Hashim, Abir& Malik, Jahangir Ahmad& Abd Allah, al-Sayyid Fathi. Silicon supplementation modulates antioxidant system and osmolyte accumulation to balance salt stress in Acacia gerrardii Benth. Saudi Journal of Biological Sciences. 2019. Vol. 26, no. 7, pp.1856-1864.
https://search.emarefa.net/detail/BIM-910434
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 1863-1864
رقم السجل
BIM-910434
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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تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
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