Cellulolytic Bacteria in the Digestive System of Prostephanus truncatus (Coleoptera: Bostrichidae)
Authors: VAZQUEZ-ARISTA, M.; SMITH, R. H.; OLALDE-PORTUGAL, V.; HINOJOSA, R. E.; HERNANDEZ-DELGADILLO, R.; BLANCO-LABRA, A.
Source: Journal of Economic Entomology, Volume 90, Number 5, October 1997 , pp. 1371-1376(6)
Publisher: Entomological Society of America
Abstract:Bacteria from the digestive system of larvae and adults of the larger grain borer, Prostcphanus truncatus (Horn), from Mexico, Tanzania, and Togo were isolated-and identified. Alcaligenes faecalis (Castellani ©Chalmers), Chromobacterium violaceum (Bergonzini), and Pseudomonas fluorescens variety cellulose (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. truncates 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.
Document Type: Research Article
Publication date: 1997-10-01
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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