Department of Marine and Coastal Studies, School of Energy, Environment and Natural Resources, Madurai Kamaraj University, Madurai, 625 021, Tamil Nadu, India.
Molecular Biology Lab., Meenakshi Mission Hospital and Research Centre (MMHRC), Madurai, 625107, Tamil Nadu, India.
Microb Pathog. 2022 Nov;172:105751. doi: 10.1016/j.micpath.2022.105751. Epub 2022 Sep 6.
Vibrio is heterotrophic ubiquitous marine bacteria that plays dual role as putative halobiont and potential pathogen. Environment and diseases are inextricable hence the role of vibrio as a potential pathogen in the natural environment must be comprehended. Hence the present study aims at investigating the pathogenicity of Vibrio owensii on the post larvae of Litopenaeus vannamei. V. owensii isolated from the marine natural habitat of the Palk Bay province in India was highly resistant to ampicillin, methicillin, tetracycline and vancomycin. The strain also lacked pathogenicity against the post larvae of L. vannamei due to the absence of major virulence factors viz. Chitinase, phospholipase and hemolytic activity. Presumably this is the first report on the occurrence of V. owensii in the Indian waters therefore there arises a need to carry out more serious research on the pathogenicity of this species on other commercial crustaceans reared in the Indian aquaculture settings in order to apprehend its role as potential pathogen or the contrary.
弧菌是一种异养的普遍存在于海洋中的细菌，它具有潜在的嗜盐生物和潜在病原体的双重作用。环境和疾病是不可分割的，因此必须理解弧菌作为潜在病原体在自然环境中的作用。因此，本研究旨在调查印度帕尔克湾省海洋自然栖息地分离出的欧文氏弧菌对凡纳滨对虾幼体的致病性。该弧菌对氨苄青霉素、甲氧西林、四环素和万古霉素具有高度耐药性。由于缺乏几丁质酶、磷脂酶和溶血活性等主要毒力因子，该菌株对凡纳滨对虾幼体也没有致病性。推测这是印度水域中首次报道欧文氏弧菌的发生，因此有必要对该物种对印度水产养殖环境中其他商业甲壳类动物的致病性进行更深入的研究，以了解其作为潜在病原体的作用或相反的作用。
