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BIBTEX RIS

Lignocellulolytic enzymes and bacteria associated with the digestive tracts of Stenochironomus (Diptera: Chironomidae) larvae

2013; Research Foundation of Ribeirão Preto; Volume: 12; Issue: AOP Linguagem: Inglês

10.4238/2013.april.2.2

ISSN

1676-5680

Autores

Ricardo Koroiva, Clóvis Wesley Oliveira de Souza, Daniele Toyama, Flávio Henrique‐Silva, Alaíde A. Fonseca-Gessner,

Tópico(s)

Microbial Community Ecology and Physiology

Resumo

We analyzed the digestive activity of the enzymes that digest cellulose and hemicellulose and the bacterial community that is capable of hydrolyzing wood compounds in the digestive tracts of Stenochironomus (Diptera: Chironomidae) larvae, which are miners of decomposing submerged tree and bush branches.Based on quantification of reducing sugars, these larvae have a limited capacity for cellulose degradation but a good capacity for xylan hydrolysis.We isolated 31 types of colonies from two larval morphotypes, of which 19 tested positive for the capacity to hydrolyze at least one of the four substrates that were used as the main carbon source in the culture media.Their woody compound degradation capacity was assessed using colorimetric tests.The bacteria

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