Cellulolytic bacteria in the digestive system of Prostephanus truncatus (Coleoptera: Bostrichidae)

Bacteria from the digestive system of larvae and adults of the larger grain borer, Prostephanus truncatus (Horn), from Mexico, Tanzania, and Togo were isolated and identified. Alcaligenes faecalis (Castellani and Chalmers), Chromobacterium violaceum (Bergonzini), and Pseudomonas fluorescens variety...

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Bibliographic Details
Published in:Journal of economic entomology 1997-10, Vol.90 (5), p.1371-1376
Main Authors: Vazquez-Arista, M, Smith, R.H, Olalde-Portugal, V, Hinojosa, R.E, Hernandez-Delgadillo, R, Blanco-Labra, A
Format: Article
Language:English
Subjects:
ALCALIGENES FAECALIS
ANTIBIOTICOS
ANTIBIOTICS
ANTIBIOTIQUE
APPAREIL DIGESTIF
BACTERIA
Biological and medical sciences
CELLULOLYSE
CELLULOLYSIS
CELLULOLYTIC MICROORGANISMS
CELULOLISIS
CHROMOBACTERIUM
CHROMOBACTERIUM VIOLACEUM
DIGESTIVE SYSTEM
FLORA MICROBIANA
FLORE MICROBIENNE
Fundamental and applied biological sciences. Psychology
GROWTH RATE
HINDGUT
INDICE DE CRECIMIENTO
Invertebrates
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
MICROBIAL FLORA
MICROORGANISME CELLULOLYTIQUE
MICROORGANISMOS CELULOLITICOS
Pests of stored products
PROSTEPHANUS TRUNCATUS
PSEUDOMONAS FLUORESCENS
SISTEMA DIGESTIVO
SUSCEPTIBILITY
TAUX DE CROISSANCE
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Summary:Bacteria from the digestive system of larvae and adults of the larger grain borer, Prostephanus truncatus (Horn), from Mexico, Tanzania, and Togo were isolated and identified. Alcaligenes faecalis (Castellani and Chalmers), Chromobacterium violaceum (Bergonzini), and Pseudomonas fluorescens variety cellulosa (Trevisan) were only detected in the guts of P. truncatus from Tanzania, these bacteria showed a high capacity to digest carboxymethyl cellulose. The growth rate, antibiotic susceptibility, and effect of 2 pH values (4.5 and 6.5) on the growth of the 9 bacteria isolated from the 3 colonies of P. truncatus under aerobic and anaerobic conditions also were studied. Using transmission electron microscopy, the bacterial microenvironment was established in the hindgut (ileum) of the larger grain borer. The presence of cellulolytic bacteria in the alimentary tract suggests that this beetle has the potential to survive under varied environmental conditions and in a variety of commodities, including wooden structures in rural areas of most African and North and Central American countries that are used as dwellings or for maize storage. The presence of cellulolytic bacteria in the larger grain borer also suggests that cellulolytic capacity could be one of the phylogenetic similarities shared with some species of the Anobiidae
ISSN:0022-0493
1938-291X
DOI:10.1093/jee/90.5.1371