Open AccessDiversity of Cultivable Midgut Microbiota at Different Stages of the Asian Tiger Mosquito, Aedes albopictus from Tezpur, India
Author(s) -
Khushboo Yadav,
Sibnarayan Datta,
Ashok Naglot,
Ajitabh Bora,
Vanlal Hmuaka,
Sameer Suresh Bhagyawant,
Hemanta Kumar Gogoi,
Vijay Veer,
Pakalapati Srinivas Raju
Publication year - 2016
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0167409
Subject(s) - biology , firmicutes , midgut , aedes albopictus , bacteroidetes , actinobacteria , proteobacteria , phylum , zoology , aedes , microbiology and biotechnology , 16s ribosomal rna , aedes aegypti , ecology , larva , bacteria , genetics
Aedes aegypti and Ae . albopictus are among the most important vectors of arboviral diseases, worldwide. Recent studies indicate that diverse midgut microbiota of mosquitoes significantly affect development, digestion, metabolism, and immunity of their hosts. Midgut microbiota has also been suggested to modulate the competency of mosquitoes to transmit arboviruses, malaria parasites etc. Interestingly, the midgut microbial flora is dynamic and the diversity changes with the development of vectors, in addition to other factors such as species, sex, life-stage, feeding behavior and geographical origin. The aim of the present study was to investigate the midgut bacterial diversity among larva, adult male, sugar fed female and blood fed female Ae . albopictus collected from Tezpur, Northeastern India. Based on colony morphological characteristics, we selected 113 cultivable bacterial isolates for 16S rRNA gene sequence based molecular identification. Of the 113 isolates, we could identify 35 bacterial species belonging to 18 distinct genera under four major phyla, namely Proteobacteria, Firmicutes, Actinobacteria and Bacteroidetes. Phyla Proteobacteria and Firmicutes accounted for majority (80%) of the species, while phylum Actinobacteria constituted 17% of the species. Bacteroidetes was the least represented phylum, characterized by a single species- Chryseobacterium rhizoplanae , isolated from blood fed individuals. Dissection of midgut microbiota diversity at different developmental stages of Ae . albopictus will be helpful in better understanding mosquito-borne diseases, and for designing effective strategies to manage mosquito-borne diseases.