Authors

Rethinasamy Velazhahan

· ORCID 0000-0002-9263-4371

Publications 6

Research article Open access

Antagonistic Bacterial Isolates Derived from Salt Cedar (Tamarix nilotica) Suppress Pythium aphanidermatum Damping-Off in Cucumber under Glasshouse Conditions

Saba Al-Ghassani, Issa Hashil Al-Mahmooli, Fatma Al-Makhmari et al. · Journal of Agricultural and Marine Sciences · 2026 · 10.53541/2410-1079.1355

Cucumber (Cucumis sativus L.) damping-off, which is caused by the soilborne oomycete Pythium aphanidermatum, is an extremely damaging disease. An environmentally friendly and safe method of controlling damping-off in cucumber and other vegetable crops is biological control, which employs naturally existing antagonistic …

Research article Open access

Effect of Application of Epiphytic Yeast Meyerozyma guilliermondii SQUCC-33Y and Tamarindus indica Leaf Extract on Alternaria alternata-induced Post-harvest Black Mold Rot of Tomato Fruits

Samiya Saleh Al-Maawali, Abdullah Mohammed Al-Sadi, Zahra S. Al-Kharousi et al. · Journal of Agricultural and Marine Sciences · 2025 · 10.53541/2410-1079.1341

Black mold rot of tomato (Solanum lycopersicum Mill) fruits, incited by Alternaria alternata, is a major constraint in tomato production worldwide. The fungus invades unripe fruits in the field, remains dormant and then cause symptoms as the fruits begin to ripe. In this study, the effectiveness of the antagonistic yea …

Research article Open access

Antagonistic bacterial strains isolated from cabbage rhizosphere release antimicrobial volatile organic compounds against Pythium aphanidermatum

Rethinasamy Velazhahan · Journal of Agricultural and Marine Sciences · 2025 · 10.53541/jams.vol28iss2pp45-54

In a previous study, we isolated four antagonistic bacterial strains viz., Pseudomonas aeruginosa B1-SQU, Pseudomonas indica B2-SQU, Serratia marcescens B3-SQU and Pseudomonas brenneri B4-SQU from the rhizosphere of cabbage which suppressed damping-off in cabbage caused by Pythium aphanidermatum. In this study, potenti …

Research article Open access

Potential use of Zataria multiflora essential oil to control postharvest Aspergillus flavus fruit rot of strawberry

Rethinasamy Velazhahan · Journal of Agricultural and Marine Sciences · 2025 · 10.53541/jams.vol28iss2pp38-44

Postharvest fruit rot is a major problem in strawberry production chain worldwide. Aspergillus sp. is one of the major fungi associated with fruit rot of strawberry. In this study, an Aspergillus flavus was isolated from a rotten strawberry fruit. Based on the nucleotide sequence analysis of the internal transcribed sp …

Research article Open access

Assessment of aflatoxin B1 content and aflatoxigenic molds in imported food commodities in Muscat, Oman

Alaa Khamis Sulaiman Al-Alawi, Ahad Ahmed Said Al-Mandhari, Issa Hashil Al-Mahmooli et al. · Journal of Agricultural and Marine Sciences · 2025 · 10.53541/jams.vol28iss1pp1-6

Aflatoxins, mainly produced by Aspergillus flavus and A. parasiticus are considered as serious food safety and human health issues due to their hepatotoxic effects. In the present study, the occurrence of aflatoxin B1 (AFB1), the most potent human liver carcinogen, and prevalence of toxigenic isolates of Aspergillus sp …

Research article Open access

In vitro antagonistic potential, plant growth-promoting activity and indole-3-acetic acid producing trait of bacterial isolates from spent mushroom substrate of Agaricus bisporus

Rethinasamy Velazhahan, Shima Nasser Hamed Al-Mamari, Abdullah Mohammed Al-Sadi et al. · Journal of Agricultural and Marine Sciences · 2020 · 10.24200/jams.vol25iss2pp22-29

Spent mushroom substrate (SMS) is widely used as fertilizer and to control plant diseases. The microorganisms surviving in SMS play a crucial role in plant growth promotion and biocontrol properties of SMS. In this study, an effort was made to isolate and characterize the bacterial species present in the SMS of Agaricu …

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