Cellulose Digestion and Assimilation by Three Leaf-shredding Aquatic Insects

Minireview Cellulose Digestion in Insects

I. Cellulose digestion hns been demonstrated in the Thysanura (Lepismatidae), Orthoptera (Cryptocercidae, Blattidae). Isoptera (Mastotermitidae. Kalotermitidae. Hodotermitidae, Rhinotermitdae. Termitidae). Coleoptera (Buprestidae. Anobiidae. Scarabaeidae, Cerambycidae), and Hymenoptera (Siricidne). 2. In all but the scarab beetles. cellulose digestion is brought about by a complex of three type...

Aquatic Insects: Hemimetabolous Insects – Plecoptera

Digestion and Assimilation of Proline - containing Peptides by Rat Intestinal

Two intestinal brush border membrane carboxypeptidases were found to participate in the sequential digestion of proline-containing peptides representing a novel mechanism of hydrolysis from the COOH terminus. NH2-blocked prolyl tripeptides were rapidly hydrolyzed by either brush border membrane angiotensin converting enzyme (ACE, dipeptidyl carboxypeptidase, E.C. 3.4.15.1) or carboxypeptidase P...

Cellulose digestion and metabolism by captive rock ptarmigan.

-l, Carbon-14 labeled cellulose was fed to rock ptarmigan to provide evidence of cellulose digestion and metabolism. Digestibility of cellulose and energy metabolized by ptarmigan fed a diet of 6 and 30';0 cellulose were determined by a feeding trial. 2. Recovery of t'~CO2 in expired gases from ptarmigan fed t*C labeled cellulose demonstrates the digestion and metabolism of cellulose by gut mic...

Interspecific interactions drive chitin and cellulose degradation by aquatic microorganisms

Complex biopolymers (BPs) such as chitin and cellulose provide the majority of organic carbon in aquatic ecosystems, but the mechanisms by which communities of bacteria in natural systems exploit them are unclear. Previous degradation experiments in artificial systems predominantly used microcosms containing a single bacterial species, neglecting effects of interspecific interactions. By constr...