Role of Rhizobium leguminosarum In Mitigating the Inhibitory Effects of Water Deficit on Arachis hypogaea
Sabra, M., Abou-Zeid, H., Azab, M., El-Badan, G. (2023). Role of Rhizobium leguminosarum In Mitigating the Inhibitory Effects of Water Deficit on Arachis hypogaea. EKB Journal Management System, 15(1), 87-103. doi: 10.21608/eajbsg.2023.292094
Mayada A Sabra; Hanan Abou-Zeid; Mohamed Azab; Ghada El-Badan. "Role of Rhizobium leguminosarum In Mitigating the Inhibitory Effects of Water Deficit on Arachis hypogaea". EKB Journal Management System, 15, 1, 2023, 87-103. doi: 10.21608/eajbsg.2023.292094
Sabra, M., Abou-Zeid, H., Azab, M., El-Badan, G. (2023). 'Role of Rhizobium leguminosarum In Mitigating the Inhibitory Effects of Water Deficit on Arachis hypogaea', EKB Journal Management System, 15(1), pp. 87-103. doi: 10.21608/eajbsg.2023.292094
Sabra, M., Abou-Zeid, H., Azab, M., El-Badan, G. Role of Rhizobium leguminosarum In Mitigating the Inhibitory Effects of Water Deficit on Arachis hypogaea. EKB Journal Management System, 2023; 15(1): 87-103. doi: 10.21608/eajbsg.2023.292094

Role of Rhizobium leguminosarum In Mitigating the Inhibitory Effects of Water Deficit on Arachis hypogaea

Egyptian Academic Journal of Biological Sciences, G. Microbiology
Volume 15, Issue 1, June 2023, Page 87-103  XML PDF (738.08 K)
Document Type: Original Article
DOI: 10.21608/eajbsg.2023.292094
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Authors
Mayada A Sabra1; Hanan Abou-Zeid2; Mohamed Azab1; Ghada El-Badan2
1Botany, Microbiology Department, Faculty of Agriculture, Saba Basha, Alexandria University, Egypt
2Botany and Microbiology Department, Faculty of Science, Alexandria University,
Abstract
The current study investigated the role of inoculating groundnut with isolated Rhizobium leguminosarum under water stress.  Three levels of irrigation {80% (control), 60% (D1), and 40% (D2) of field capacity} were employed in the presence or absence of Rhizobium. Results revealed that plant growth biomarkers and physiological attributes were altered under drought conditions, while Rhizobium-groundnut-symbiosis with or without water stress showed a remarkable improvement in plant growth (branch number, shoot and root fresh and dry weights) photosyntheticpigments and the quantum yield of PSII (Fv/Fm) as well as the increase in nodules' weight, number, leghaemoglobin, and N2 contents. The electrograms displayed quantitative and qualitative characteristic changes among the D1 and D2 separately or with Rhizobium inoculation. Drought-induced synthesis of high or low MWs new stress protein bands with low intensities; additionally, Rhizobium inoculation resulted in the increase in the number of bands, besides the elucidation of the relationships among different treatments as showed by dendrogram cluster analysis. The overall results suggest that Rhizobium-symbiosis regarded as a promising and effective tool for the modulation of groundnut to conquer water deficiency. 
Keywords
Drought; Groundnut; Photosynthesis; Protein profile; Rhizobia
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