ArticleApplied biochemistry and biotechnology2022
Characterizations of Larval Gut Bacteria of Anopheles subpictus Grassi (1899) and their Role in Mosquito Development in Hooghly, West Bengal, India.
Article in Applied biochemistry and biotechnology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Environmental persistence and transmission dynamics ofApplied and environmental microbiology · 2025Article
- Bacterial community composition and diversity associated with developmental stages of Anopheles subpictus.International microbiology : the official journal of the Spanish Society for Microbiology · 2025Article
- Bacterial diversity on larval and female Mansonia spp. from different localities of Porto Velho, Rondonia, Brazil.PloS one · 2023Article
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2 authors.
Funding
Abstract
Malaria is a serious vector borne disease transmitted by different species of Anopheles mosquitoes. The present study was aimed to isolate and characterize the bacterial flora from the gut of larvae of An. subpictus Grassi (1899) prevalent in Hooghly and explore their roles in host survival and development. Mosquito larvae and adults were collected from field and were maintained in laboratory. Bacterial load in the larval mid-gut was determined, and predominant strains were isolated and characterized by polyphasic approach. Role of these bacteria in larval survival and development were assayed. Bacterial load in the gut of larvae was found to vary in field-collected and lab-reared mosquitoes in different seasons. Morphological, bio-chemical, and molecular analyses explored four common bacterial isolates, namely Bacillus subtilis, Bacillus pumilus, Bacillus cereus, and Proteus vulgaris in the larval gut throughout the year. Larval survival rate was greatly reduced (0.06) and time of pupation was prolonged (17.8 ± 0.57) [days] in the absence of their gut bacteria. Total tissue protein (7.78 ± 0.56) [µg/mg], lipid (2.25 ± 0.19) [µg/mg] & carbohydrate (16.5 ± 0.79) [µg/mg] contents of larvae, and body weight & wing length of adult male (0.17 ± 0.02 & 1.74 ± 0.43) [mm] & female (0.19 ± 0.02 & 1.99 ± 0.46) [mm] mosquitoes were also found to be greatly reduced in the absence of gut bacteria. Developmental characteristics were restored with the introduction of culture suspension of all four resident gut bacterial isolates. Present study indicates that the mosquitoes largely depend on their gut bacteria for their survival and development. So, manipulation or control of this gut bacterial communities might inhibit survival and development of vector mosquitoes.
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