First report of molecular detection and phylogenetic analysis of Toxoplasma Gondii in soil, water and vegetables from Chandigarh city, India

Rattan, Divya and Datta, Priya and Sharma, Devyani and Bhusal, Chandra Kanta and Sehgal, Rakesh K. (2025) First report of molecular detection and phylogenetic analysis of Toxoplasma Gondii in soil, water and vegetables from Chandigarh city, India. Scientific Reports, 15 (1). ISSN 20452322

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Abstract

Toxoplasma gondii, a zoonotic protozoan parasite, affects up to one-third of the global population. It can be transmitted through consumption of raw or undercooked meat, vertical transmission, or oocysts from contaminated water, soil, or food. However, there are no reports on the molecular prevalence of T. gondii in environmental sources like soil, water, and vegetables in India. This study aimed to detect and analyze T. gondii in samples from Chandigarh city, India. A total of 100 each soil & water and 500 vegetable samples were collected and analyzed using conventional PCR assay, real-time PCR assay targeting the glycerol-3-phosphate dehydrogenase (B1) gene and real-time LAMP assay targeting both B1 and Toxoplasma gondii outer wall protein (TgOWP) genes. Results showed that 15 of water, 9 of soil, and 6.4 of vegetable samples were positive for T. gondii. Real-time PCR assay and real-time LAMP assay detected slightly higher positivity rates in water and vegetable samples. Phylogenetic analysis revealed that the T. gondii isolates clustered with those from other regions such as Iran, India, Mexico, and those found in cats, pigs, and humans. This study is the first report of T. gondii contamination in environmental sources and fresh produce in India. The findings highlight the potential risk of human infection from contaminated water, soil, and vegetables in the region. © 2025 Elsevier B.V., All rights reserved.

Item Type: Article
Additional Information: Cited by: 0; All Open Access; Gold Open Access; Green Accepted Open Access; Green Open Access
Uncontrolled Keywords: protozoal DNA; water; animal; classification; epidemiology; genetics; human; India; isolation and purification; parasitology; phylogeny; real time polymerase chain reaction; soil; Toxoplasma; vegetable; Animals; DNA, Protozoan; Humans; Phylogeny; Real-Time Polymerase Chain Reaction; Soil; Vegetables; Water
Subjects: Immunology and Microbiology > Parasitology
Divisions: Medicine > Aarupadai Veedu Medical College and Hospital, Puducherry > Microbiology
Depositing User: Unnamed user with email techsupport@mosys.org
Last Modified: 14 Oct 2025 18:03
URI: https://vmuir.mosys.org/id/eprint/31

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