Effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.

Lentic freshwater systems including those inhabited by aquatic stages of mosquitoes derive most of their carbon inputs from terrestrial organic matter mainly leaf litter. The leaf litter is colonized by microbial communities that provide the resource base for mosquito larvae. While the microbial bio...

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Autores principales:	Ephantus J Muturi, Benedict O Orindi, Chang-Hyun Kim
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8334f0cb42864d5ca9d61cf7a64beb42
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spelling	oai:doaj.org-article:8334f0cb42864d5ca9d61cf7a64beb422021-11-18T09:01:07ZEffect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.1932-620310.1371/journal.pone.0071812https://doaj.org/article/8334f0cb42864d5ca9d61cf7a64beb422013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23940789/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Lentic freshwater systems including those inhabited by aquatic stages of mosquitoes derive most of their carbon inputs from terrestrial organic matter mainly leaf litter. The leaf litter is colonized by microbial communities that provide the resource base for mosquito larvae. While the microbial biomass associated with different leaf species in container aquatic habitats is well documented, the taxonomic composition of these microbes and their response to common environmental stressors is poorly understood. We used indoor aquatic microcosms to determine the abundances of major taxonomic groups of bacteria in leaf litters from seven plant species and their responses to low concentrations of four pesticides with different modes of action on the target organisms; permethrin, malathion, atrazine and glyphosate. We tested the hypotheses that leaf species support different quantities of major taxonomic groups of bacteria and that exposure to pesticides at environmentally relevant concentrations alters bacterial abundance and community structure in mosquito larval habitats. We found support for both hypotheses suggesting that leaf litter identity and chemical contamination may alter the quality and quantity of mosquito food base (microbial communities) in larval habitats. The effect of pesticides on microbial communities varied significantly among leaf types, suggesting that the impact of pesticides on natural microbial communities may be highly complex and difficult to predict. Collectively, these findings demonstrate the potential for detritus composition within mosquito larval habitats and exposure to pesticides to influence the quality of mosquito larval habitats.Ephantus J MuturiBenedict O OrindiChang-Hyun KimPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 8, p e71812 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ephantus J Muturi Benedict O Orindi Chang-Hyun Kim Effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.
description	Lentic freshwater systems including those inhabited by aquatic stages of mosquitoes derive most of their carbon inputs from terrestrial organic matter mainly leaf litter. The leaf litter is colonized by microbial communities that provide the resource base for mosquito larvae. While the microbial biomass associated with different leaf species in container aquatic habitats is well documented, the taxonomic composition of these microbes and their response to common environmental stressors is poorly understood. We used indoor aquatic microcosms to determine the abundances of major taxonomic groups of bacteria in leaf litters from seven plant species and their responses to low concentrations of four pesticides with different modes of action on the target organisms; permethrin, malathion, atrazine and glyphosate. We tested the hypotheses that leaf species support different quantities of major taxonomic groups of bacteria and that exposure to pesticides at environmentally relevant concentrations alters bacterial abundance and community structure in mosquito larval habitats. We found support for both hypotheses suggesting that leaf litter identity and chemical contamination may alter the quality and quantity of mosquito food base (microbial communities) in larval habitats. The effect of pesticides on microbial communities varied significantly among leaf types, suggesting that the impact of pesticides on natural microbial communities may be highly complex and difficult to predict. Collectively, these findings demonstrate the potential for detritus composition within mosquito larval habitats and exposure to pesticides to influence the quality of mosquito larval habitats.
format	article
author	Ephantus J Muturi Benedict O Orindi Chang-Hyun Kim
author_facet	Ephantus J Muturi Benedict O Orindi Chang-Hyun Kim
author_sort	Ephantus J Muturi
title	Effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.
title_short	Effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.
title_full	Effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.
title_fullStr	Effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.
title_full_unstemmed	Effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.
title_sort	effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/8334f0cb42864d5ca9d61cf7a64beb42
work_keys_str_mv	AT ephantusjmuturi effectofleaftypeandpesticideexposureonabundanceofbacterialtaxainmosquitolarvalhabitats AT benedictoorindi effectofleaftypeandpesticideexposureonabundanceofbacterialtaxainmosquitolarvalhabitats AT changhyunkim effectofleaftypeandpesticideexposureonabundanceofbacterialtaxainmosquitolarvalhabitats
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Effect of leaf type and pesticide exposure on abundance of bacterial taxa in mosquito larval habitats.

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