Location by fluorescence microscopy of glycosidases and a xylanase in the anaerobic gut fungi Caecomyces communis, Neocallimastix frontalis, and Piromyces rhizinflata

Bretón, André; Gaillard-Martinie, Brigitte; Gerbi, C.; Segura, Béatrice Gomez de; Durand, Roger; Kherratia, B.

doi:10.1007/bf00298378

Cited by 7 publications

(2 citation statements)

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“…The anaerobic fungi produce a wide range of polysaccharide degrading enzymes. Enzymes have been found associated with the rhizomycelium and many were also secreted into the surrounding environment (Williams & Orpin, 1987;Lowe et al 1987d;Breton et al 1995;Gerbi et al 19963). The presence and activity of some surface associated enzymes have been shown to fluctuate according to the stage of the life cycle (Breton et at.…”

Section: Metabolismmentioning

confidence: 99%

The role of anaerobic gut fungi in ruminants

1998

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Anaerobic chytridiomycete fungi are found in the gastrointestinal tracts of sheep, cattle and goats, as well as in many other domesticated ruminant and nonruminant herbivores and a wide variety of wild herbivorous mammals. They are principally found associated with the fibrous plant particles of digesta and as free swimming zoospores in the fluid phase. The presence of large fungal populations in animals consuming mature pasture or diets largely composed of hay or straw together with the production of highly active fibre degrading enzymes lead to' the belief that anaerobic fungi may have a significant role to play in the assimilation of fibrous feeds by ruminants. While many early studies focused on anaerobic fungi because of their unusual biology and metabolism, the large part of subsequent research has emphasized the biotechnological potential of their cellulases, xylanases and phenolic esterases. In recent years, the extent of the contribution of anaerobic fungi to the nutrition of ruminants has also been established through studies of fungal populations in the rumen and the dietary factors which influence them, as presented in this review. Further, we discuss the evidence supporting an important contribution of anaerobic fungal populations in the rumen to feed intake and digestion of poor quality feed by domesticated ruminants. In conclusion, the review explores some different methods for manipulating fungi in the rumen for increased feed intake and digestion.

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Section: Metabolismmentioning

confidence: 99%

The role of anaerobic gut fungi in ruminants

1998

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“…Carbohydrate active enzymes system in Caecomyces sp. Breton et al (1995) reported that Caecomyces sp. has the enzyme activity of β-glucosidase (EC 3.2.1.21), while β-galactosidase ( EC 3.2.1.23 related to the GH family) has no activity.…”

Section: Carbohydrate Active Enzymes System In Neocallimastix Spmentioning

confidence: 99%

Carbohydrate active enzyme system in rumen fungi: a review

YÜCEL

EKİNCİ

2022

International Journal of Secondary Metabolite

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Hydrolysis and dehydration reactions of carbohydrates, which are used as energy raw materials by all living things in nature, are controlled by Carbohydrate Active Enzyme (CAZy) systems. These enzymes are also used in different industrial areas today. There are different types of microorganisms that have the CAZy system and are used in the industrial sector. Apart from current organisms, there are also rumen fungi within the group of candidate microorganisms with the CAZy system. It has been reported that xylanase (EC3.2.1.8 and EC3.2.1.37) enzyme, a member of the glycoside hydrolase enzyme family obtained from Trichoderma sp. and used especially in areas such as bread, paper, and feed industry, is more synthesized in rumen fungi such as Orpinomyces sp. and Neocallimastix sp. Therefore, this study reviews Neocallimastixsp., Orpinomyces sp., Caecomyces sp., Piromyces sp., and Anaeromyces sp., registered in the CAZy and Mycocosm database for rumen fungi to have both CAZy enzyme activity and to be an alternative microorganism in the industry. Furthermore the CAZy enzyme activities of the strains are investigated. The review shows thatNeocallimax sp. and Orpinomyces sp. areconsidered as candidate microorganisms.

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One stop mycology

Moore

Frazer

1996

Mycological Research

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Location by fluorescence microscopy of glycosidases and a xylanase in the anaerobic gut fungi Caecomyces communis, Neocallimastix frontalis, and Piromyces rhizinflata

Cited by 7 publications

References 14 publications

The role of anaerobic gut fungi in ruminants

The role of anaerobic gut fungi in ruminants

Carbohydrate active enzyme system in rumen fungi: a review

One stop mycology

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