Bacterial community structure in tree hole habitats of Ochlerotatus triseriatus: influences of larval feeding.
J Am Mosq Control Assoc
; 24(2): 219-27, 2008 Jun.
Article
em En
| MEDLINE
| ID: mdl-18666529
ABSTRACT
We investigated the bacterial community composition of tree holes in relation to the presence and absence of larvae of the mosquito Ochlerotatus triseriatus. Larvae were eliminated from a subset of natural tree holes with Bacillus thuringiensis serovar israelensis, and total bacterial numbers, slow- and fast-growing colony-forming units on minimal media, and 16S rRNA gene sequence data from water column and leaf material were obtained. Total bacterial counts did not change significantly with treatment; however, the number of slow-growing cultivable bacteria significantly increased in the absence of larvae. Sequence classifications and comparisons of sequence libraries using LIBSHUFF indicated that the elimination of larvae significantly altered bacterial community composition. Major groups apparently affected by larvae were Flavobacteriaceae, Rhodobacteraceae, Comamonadaceae, and Sphingomonadaceae. A clear dominance of Flavobacteriaceae in the water column after larval removal suggests members of this group are a major bacterial food source.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Árvores
/
DNA Bacteriano
/
Ecossistema
/
Ochlerotatus
/
Água Doce
Limite:
Animals
País/Região como assunto:
America do norte
Idioma:
En
Revista:
J Am Mosq Control Assoc
Assunto da revista:
MEDICINA TROPICAL
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Estados Unidos