Culturable bacteria associated with the whitefly, Bemisia argentifolii (Homoptera: Aleyrodidae)

Several different types of bacteria were cultured from surface-sterilized Bemisia argentifolii Bellows, Perring, Gill and Hedrick 1994 (Homoptera: Aleyrodidae) adults and nymphs, including Bacillus spp., Gram-variable pleomorphic rods and Gram-positive cocci. Two of the isolates were capable of bein...

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Bibliographic Details
Published in:The Florida entomologist 2000-06, Vol.83 (2), p.159-171
Main Authors: Davidson, E.W, Rosell, R.C, Hendrix, D.L
Format: Article
Language:English
Subjects:
Adult insects
Aleyrodidae
Bacillus
Bacillus (bacteria)
Bacteria
Bemisia argentifolii
Cabbages
cell ultrastructure
cultures
Endosymbionts
Enterobacter cloacae
Honeydew
ingestion
Insect morphology
Insect vectors
Midgut
Nymphs
symbionts
symbiotic bacteria
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Summary:Several different types of bacteria were cultured from surface-sterilized Bemisia argentifolii Bellows, Perring, Gill and Hedrick 1994 (Homoptera: Aleyrodidae) adults and nymphs, including Bacillus spp., Gram-variable pleomorphic rods and Gram-positive cocci. Two of the isolates were capable of being ingested by adults and passed into the honeydew. One of these, Enterobacter cloacae, was found within the gut cells of adult whiteflies and was mildly pathogenic. This isolate represents the first bacterium with potential as a pathogen of whiteflies. Bacteria which were not capable of being ingested, may have been located in structures which were protected from surface sterilization, such as the lingula or the female reproductive tract. /// Diferentes tipos de bacterias fueron aisladas de adultos y ninfas de Bemisia argentifolii Bellows et al., 1994 (Homoptera: Aleyrodidae) esterilizados superficialmente. Entre las bacterias aisladas se encontró Bacillus spp., bacilos pleomórficos Gram-variables y cocos Gram-positivos. Los adultos fueron capaces de ingerir a dos de los organismos aislados y de transferirlos a la mielecilla que secretan. Uno de éstos, Enterobacter cloacae, fué encontrado dentro de células intestinales de mosquitas blancas adultas y fué moderadamente patogénico. Esta bacteria representa el primer organismo aislado que posee potencial patogénico para el control de la mosquita blanca. Otras bacterias aisladas no fueron capaces de ser ingeridas, lo cual se atribuyó a que se ubicaron en estructuras protegidas de la esterilización superficial, como la lígula o el tracto reproductivo femenino.
ISSN:0015-4040
1938-5102
DOI:10.2307/3496151