Endophytic Streptomyces enissocaesilis As a Nematicidal and Biostimulant Agent
El-Akshar, E., Elmeihy, R., Tewfike, T., Abou-Aly, H. (2022). Endophytic Streptomyces enissocaesilis As a Nematicidal and Biostimulant Agent. EKB Journal Management System, 14(2), 123-133. doi: 10.21608/eajbsg.2022.262580
Eman A. El-Akshar; Rasha M. Elmeihy; Taha A. Tewfike; Hamed E. Abou-Aly. "Endophytic Streptomyces enissocaesilis As a Nematicidal and Biostimulant Agent". EKB Journal Management System, 14, 2, 2022, 123-133. doi: 10.21608/eajbsg.2022.262580
El-Akshar, E., Elmeihy, R., Tewfike, T., Abou-Aly, H. (2022). 'Endophytic Streptomyces enissocaesilis As a Nematicidal and Biostimulant Agent', EKB Journal Management System, 14(2), pp. 123-133. doi: 10.21608/eajbsg.2022.262580
El-Akshar, E., Elmeihy, R., Tewfike, T., Abou-Aly, H. Endophytic Streptomyces enissocaesilis As a Nematicidal and Biostimulant Agent. EKB Journal Management System, 2022; 14(2): 123-133. doi: 10.21608/eajbsg.2022.262580

Endophytic Streptomyces enissocaesilis As a Nematicidal and Biostimulant Agent

Egyptian Academic Journal of Biological Sciences, G. Microbiology
Article 10, Volume 14, Issue 2, December 2022, Page 123-133  XML PDF (673.27 K)
Document Type: Original Article
DOI: 10.21608/eajbsg.2022.262580
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Authors
Eman A. El-Akshar1; Rasha M. Elmeihyorcid 2; Taha A. Tewfike1; Hamed E. Abou-Aly1
1Department of Agricultural Microbiology, Faculty of Agriculture, Benha University, Moshtohor, Qaluybia, 13736, Egypt
2Department of Agricultural Microbiology, Faculty of Agriculture, Benha University, Moshtohor, Qaluybia, 13736,Egypt
Abstract
The endophytic Streptomyces enissocaesilis OM182843 was investigated for its antagonistic activity against root-knot nematode (Meloidogyne incognita)as well as its ability to produce plant growth regulators. The nematicidal activity was performed using both culture and crude culture filtrate (CCF) of Strep. enissocaesilis. Both caused high mortality and inhibition of egg-hatching of M. incognita during all experimental intervals. Hydrolytic enzymes (chitinases, proteases and gelatinase), as well as plant growth regulators (indole acetic acid, gibberellic acid, salicylic acid, and proline), were produced by Strep. enissocaesilis in considerable quantities. Furthermore, volatile organic compounds (VOCs) released by Strep. enissocaesilis were analyzed by GC/MS and several of them were found to have nematicidal activity, the most abundant being 2,4-Decadienal, (E, Z) (CAS). This study opens new horizons for thinking about the use of microorganisms to combat pathogens such as root-knot nematodes, which avoid the harmful effects of synthetic nematicides, not only this but also can stimulate plant growth and thus provide a double benefit
Keywords
Endophytic Streptomyces; Meloidogyne incognita; Nematicide; Hydrolytic enzymes; Plant growth regulators
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