Cellulolytic activity of Actinomycetes isolated from termites (Termitidae) gut

  title={Cellulolytic activity of Actinomycetes isolated from termites (Termitidae) gut},
  author={Maria B. Pasti and Maria Luana Belli},
  journal={Fems Microbiology Letters},
Abstract Cellulolytic actinomycetes were isolated from the hindgut of four different termites: Macrotermes, Armitermes, Odontotermes and Microcerotermes spp. The isolated actinomycetes ( Streptomyces sp. and Micromonospora sp.) were grown on cellulosic substrates and their extracellular cellulase (C l , C x and cellobiase) activity evaluated; using filter paper as a substrate for C l , carboxymethylcellulose (CMC) for C x and d -cellobiose for cellobiase, all strains were shown to degrade… 
Lignin-solubilizing ability of actinomycetes isolated from termite (Termitidae) gut
Of the assays used, total lignocellulose weight loss was most useful in determining overall bioconversion ability but not in identifying the best lignin-solubilizing strains.
Ultrastructural studies of the termite (Odontotermes obesus) gut microflora and its cellulolytic properties
The gut homogenate exhibited strong hydrolytic activity when carboxymethyl cellulose,p-nitrophenyl-β-d-glucoside or xylan were used as substrate, indicating the role of gut microbiota in the process of cellulose and hemicellulose digestion.
Study of Cellulose-Destroying Activity of Actinobacteria Associated with Ants
Specific endoglucanase and β-glucosidase activity of these strains corresponded to that of cellulose- and lignin-destroying streptomycetes described in the literature.
Cellulosimicrobium variabile sp. nov., a cellulolytic bacterium from the hindgut of the termite Mastotermes darwiniensis.
A novel cellulolytic and xylanolytic bacterium, strain MX5T, was isolated from the hindgut contents of the Australian termite Mastotermes darwiniensis and assigned to the genus Cellulosimicrobium on the basis of phylogenetic and chemotaxonomic criteria.
Isolation of facultatively aerobic actinomycetes from the gut, parent soil and mound materials of the termites Procubitermes aburiensis and Cubitermes severus
The termite gut was considered to be a good source of unusual actinomycetes, but strains isolated under aerobic conditions are likely to be allochthons selected by the intestinal environment, which is highly alkaline and anaerobic.
Isolation of Actinomycetes from Termites' Guts
Actinomycetes could be isolated efficiently on a defatted wood powder medium from the guts of various species of termites, and grew satisfactorily on lignin-relatedMedia and the others grew on cellulose-related media.
Actinobacteria isolated from termite guts as a source of novel oxidative enzymes
A strong relationship was observed between the environment sampled and the dominant type of oxidative enzyme activity detected (laccases and peroxidases), which suggests the possibility of future targeted screening protocols linking the physical properties of the target enzymes with specific operational conditions required, such as lignocellulosic degradation in the preparation of biofuel feedstocks.
Isolation and Characterization of Antibiotic and Exoenzymes Producing Actinobacteria from Guts of Fungus-Cultivating Termites (Macrotermes Michaelseni)
It is confirmed that guts of fungus-cultivating termites harbor Actinobacteria that can produce enzymes and antibiotics.
Cultivation and characterization of symbiotic bacteria from the gut of Reticulitermes chinensis
The preliminary results of this work gave hints of possible functions of symbiotic bacteria in nitrogen recycling and cellulose degradation in the gut of wood-feeding termites.


Comparison of β-Glucosidase Activities in Different Streptomyces Strains
The combined action of the β-glucosidases produced by the two Streptomyces strains might allow a better utilization of the reaction products which arise during the biodegradation of cellulose.
Production of microbial protein from waste cellulose by Thermomonospora fusca, a thermophilic actinomycete
The growth characteristics of Thermomonospora fusca, a cellulolytic thermophilic actinomycete, are described in terms of growth on pulping fines, an cellulosic waste of the paper industry, and the possible use of the fermentation as a waste disposal system.
Utilization of carbohydrates by Thermomonospora sp. Grown on glucose, cellobiose, and cellulose
Thermomonospora sp. was grown on glucose, cellobiose, and in order to study its growth characteristics with different carbohydrate substrates and to assess the validity of some of the assumptions
Metabolism of glucose and cellobiose by cellulolytic mesophilic Clostridium sp. strain H10
The metabolism of strain H10, a cellulolytic mesophilic Clostridium sp., was studied on glucose and cellobiose as energy and carbon sources. The main products of fermentation of both sugars were
Enzymatic hydrolysis of cellulosic materials by Sclerotium rolfsii culture filtrate for sugar production.
The main constituent in the hydrolysate from cellulose was glucose with little or no cellobiose, probably due to the high cellobiase content in the culture filtrate.
Enzyme mechanisms involved in cellulose hydrolysis by the rot fungus Sporotrichum pulverulentum
The enzymes used by S. pulverulentum in cellulose hydrolysis are compared to those used by Trichoderma viride, and no oxidative enzyme has so far been found to be involved in extracellular cellulose degradation in the case of T. viride.
Comparison of Extracellular Cellulase Activities of Clostridium thermocellum LQRI and Trichoderma reesei QM9414
  • T. Ng, J. Zeikus
  • Biology, Chemistry
    Applied and environmental microbiology
  • 1981
The crude extracellular cellulase of Clostridium thermocellum LQRI (virgin strain) was very active and solubilized microcrystalline cellulose at one-half the rate observed for the extracellular
Acquisition of Digestive Enzymes by Siricid Woodwasps from Their Fungal Symbiont
Larvae of the woodwasp, Sirex cyaneus, contain midgut digestive enzymes that enable them to utilize the major fungal and plant polysaccharides found in their food. At least two classes of enzymes,
Cellulose Digestion by Organisms from the Termite Gut
A further attempt is made to demonstrate the splitting of cellulose by bacteria derived from termite gut content using the technique that usually followed in soil bacteriology.