Cellulose digestion in Panesthia cribrata Saussure: does fungal cellulase play a role?
| Autor: | A.M. Scrivener, M. Slaytor |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
endocrine system
Cockroach biology Physiology Starch Panesthia cribrata Midgut General Medicine Cellulase respiratory system biology.organism_classification complex mixtures Biochemistry respiratory tract diseases Blaberidae chemistry.chemical_compound chemistry immune system diseases biology.animal biology.protein Cellulose Digestion Molecular Biology |
| Zdroj: | Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 107:309-315 |
| ISSN: | 0305-0491 |
| DOI: | 10.1016/0305-0491(94)90053-1 |
| Popis: | The cockroach Panesthia cribrata inhabits wood extensively degraded by fungi. Fungal and minor cockroach endo-β-1,4-glucanase components co-eluted on Bio-Gel A-0.5 m. The minor cockroach endo-β-1,4-glucanase components were shown to be endogenous as they are present in the salivary glands, midgut epithelia and in guts from P. cribrata maintained on cellulose and starch. Fungal cellulase was not present in the gut of P. cribrata , does not synergise with the cockroach cellulase and does not contribute to cellulose digestion in P. cribrata . Fungi are not required to convert crystalline to amorphous cellulose, as both are hydrolysed at similar rates by cockroach extracts. Fungal-produced sugars are not a significant source of carbohydrate for the cockroach. It is concluded that fungal attack softens the wood, facilitating burrowing by the cockroach. |
| Databáze: | OpenAIRE |
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