Larvicidal and anti-termite activities of microbial biosurfactant produced by Enterobacter cloacae SJ2 isolated from marine sponge Clathria sp.

Autor: Harikrishnan S; Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamil Nadu, 608502, India. hariugin97@gmail.com., Sudarshan S; Department of Aquatic Environment Management, TNJFU- Dr. M.G.R Fisheries College and Research Institute, Thalainayeru, Tamil Nadu, 614712, India., Sivasubramani K; Department of Microbiology, Faculty of Science, Annamalai University, Annamalai Nagar, Chidambaram, Tamil Nadu, India., Nandini MS; Department of Microbiology, Sree Balaji Medical College and Hospital, Chennai, Tamil Nadu, India., Narenkumar J; Department of Environmental & Water Resources Engineering, School of Civil Engineering (SCE), Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India. narencherry77@gmail.com., Ramachandran V; Department of Medical Sciences, University College of MAIWP International, Taman Batu Muda, 68100, Batu Caves, Kuala Lumpur, Malaysia.; Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India., Almutairi BO; Department of Zoology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia., Arunkumar P; School of Chemical Engineering, Chonnam National University, Gwangju, South Korea., Rajasekar A; Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu, 632115, India., Jayalakshmi S; Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamil Nadu, 608502, India.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Sep 13; Vol. 13 (1), pp. 15153. Date of Electronic Publication: 2023 Sep 13.
DOI: 10.1038/s41598-023-42475-6
Abstrakt: The widespread use of synthetic pesticides has resulted in a number of issues, including a rise in insecticide-resistant organisms, environmental degradation, and a hazard to human health. As a result, new microbial derived insecticides that are safe for human health and the environment are urgently needed. In this study, rhamnolipid biosurfactants produced from Enterobacter cloacae SJ2 was used to evaluate the toxicity towards mosquito larvae (Culex quinquefasciatus) and termites (Odontotermes obesus). Results showed dose dependent mortality rate was observed between the treatments. The 48 h LC 50 (median lethal concentration) values of the biosurfactant were determined for termite and mosquito larvae following the non-linear regression curve fit method. Results showed larvicidal activity and anti-termite activity of biosurfactants with 48 h LC 50 value (95% confidence interval) of 26.49 mg/L (25.40 to 27.57) and 33.43 mg/L (31.09 to 35.68), respectively. According to a histopathological investigation, the biosurfactant treatment caused substantial tissue damage in cellular organelles of larvae and termites. The findings of this study suggest that the microbial biosurfactant produced by E. cloacae SJ2 is an excellent and potentially effective agent for controlling Cx. quinquefasciatus and O. obesus.
(© 2023. Springer Nature Limited.)
Databáze: MEDLINE
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