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Isolation of Fluoride Tolerant Bacillus spp (KT201599, KT201600) from the Midgut of Drosophila melanogaster: Their Probable Role in Fluoride Removal

Isolation of Fluoride Tolerant Bacillus spp (KT201599, KT201600) from the Midgut of Drosophila... This is for the first time that two fluoride tolerant bacterial strains of Bacillus spp (KT201599 and KT201600) have been isolated from the mid-gut of third instar larvae of Drosophila melanogaster. They are characterized and identified using phenotypic characters and 16S rRNA gene based molecular phylogenetic analysis. Interestingly, KT201599 and KT201600 are able to survive at 2000–2500 µg/mL sodium fluoride (NaF) concentrations. The chronic lethal concentration 50 (LC50) for NaF in Drosophila larvae is 125 µg/mL, whereas, the above-mentioned Bacillus strains isolated from their mid-gut are found to be more tolerant to fluoride (F) in comparison to their host. In search for biological relevance of KT201599 and KT201600, we further deciphered that these strains not only survived at high F concentrations, but also were efficient in removing the fluoride ions from the medium by 16.66 and 24.71% respectively. Thus, the study indicates that resident gut flora of Drosophila having the property of reducing fluoride load from the medium, might be helping the host to thrive in a fluoridated environment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Proceedings of the Zoological Society Springer Journals

Isolation of Fluoride Tolerant Bacillus spp (KT201599, KT201600) from the Midgut of Drosophila melanogaster: Their Probable Role in Fluoride Removal

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Publisher
Springer Journals
Copyright
Copyright © Zoological Society, Kolkata, India 2018
Subject
Life Sciences; Life Sciences, general; Zoology; Animal Anatomy / Morphology / Histology; Animal Genetics and Genomics; Biodiversity; Conservation Biology/Ecology
ISSN
0373-5893
eISSN
0974-6919
DOI
10.1007/s12595-018-0282-y
Publisher site
See Article on Publisher Site

Abstract

This is for the first time that two fluoride tolerant bacterial strains of Bacillus spp (KT201599 and KT201600) have been isolated from the mid-gut of third instar larvae of Drosophila melanogaster. They are characterized and identified using phenotypic characters and 16S rRNA gene based molecular phylogenetic analysis. Interestingly, KT201599 and KT201600 are able to survive at 2000–2500 µg/mL sodium fluoride (NaF) concentrations. The chronic lethal concentration 50 (LC50) for NaF in Drosophila larvae is 125 µg/mL, whereas, the above-mentioned Bacillus strains isolated from their mid-gut are found to be more tolerant to fluoride (F) in comparison to their host. In search for biological relevance of KT201599 and KT201600, we further deciphered that these strains not only survived at high F concentrations, but also were efficient in removing the fluoride ions from the medium by 16.66 and 24.71% respectively. Thus, the study indicates that resident gut flora of Drosophila having the property of reducing fluoride load from the medium, might be helping the host to thrive in a fluoridated environment.

Journal

Proceedings of the Zoological SocietySpringer Journals

Published: Jun 8, 2020

References