Production of indolic compounds by rumen bacteria isolated from grazing ruminants

  title={Production of indolic compounds by rumen bacteria isolated from grazing ruminants},
  author={G Attwood and D. Q. Li and D. Pacheco and Michael H. Tavendale},
  journal={Journal of Applied Microbiology},
Aim:  To screen rumen bacterial cultures and fresh ruminal isolates for indole and skatole production. 

3‐Methylindole production is regulated in Clostridium scatologenes ATCC 25775

Aims:  3‐Methylindole (3‐MI) is a degradation product of l‐tryptophan and is both an animal waste malodorant and threat to ruminant health. Culture conditions influencing 3‐MI production in

A metagenomic approach to study the effects of using tylosin an antibiotic growth promoter on the pig distal gut microflora

This dissertation presents a meta-anatomy of the immune system and its role in the selection and management of infectious disease in the context of agriculture.

Ruminal tryptophan-utilizing bacteria degrade ergovaline from tall fescue seed extract.

The results of this study indicate which rumen bacteria may play an important role in ergovaline degradation and that microbiological strategies for controlling their activity could have ramifications for fescue toxicosis and other forms of ergotism in ruminants.

Catabolic Pathway for the Production of Skatole and Indoleacetic Acid by the Acetogen Clostridium drakei, Clostridium scatologenes, and Swine Manure

Deuterium-labeled substrates were employed to resolve this pathway in the acetogenic bacterium Clostridium drakei and Clastridium scatologenes and to determine if a similar pathway is used by microorganisms present in stored swine manure.

Antimicrobial Effect of Red Clover (Trifolium pratense) Phenolic Extract on the Ruminal Hyper Ammonia-Producing Bacterium, Clostridium sticklandii

Results indicate that clover phenolic compounds may have a role in preventing amino acid fermentation, particularly in plants left to wilt for 24 h.

Microbial Degradation of Indole and Its Derivatives

This minireview summarizes and explains the microbial degradation of indole, indole-3-acetic acid, 4-chloroindole, and methylindole.

Benefits of Condensed Tannins in Forage Legumes Fed to Ruminants: Importance of Structure, Concentration, and Diet Composition

This review covers recent results from multidisciplinary research on sainfoin (Onobrychis Mill.) and provides an overview of current developments with several other tanniniferous forages.

Analysis of Mycotoxin and Secondary Metabolites in Commercial and Traditional Slovak Cheese Samples

Cheese represents a dairy product extremely inclined to fungal growth and mycotoxin production. The growth of fungi belonging to Aspergillus, Penicillium, Fusarium, Claviceps, Alternaria, and

Draft Genome Sequence of Megasphaera sp. Strain DJF_B143, an Isolate from Pig Hindgut Unable to Produce Skatole

ABSTRACT The butyrate-producing Megasphaera spp. predominate in the pig hindgut and may play important roles in gut health. Moreover, one Megasphaera isolate has been reported to produce the boar

Characterization of skatole-producing microbial populations in enriched swine lagoon slurry.

Results from this study provide valuable new information concerning the organisms responsible for production of this odorant, a necessary first step towards controlling skatole production.



Isolation and characteristics of a skatole-producing Lactobacillus sp. from the bovine rumen

This is the first report of indoleacetic acid decarboxylation to skatole in pure culture and the demonstration of skatoles production by a Lactobacillus species.

Catabolism of Amino Acids by Megasphaera elsdenii LC1

  • R. Wallace
  • Medicine, Biology
    Applied and environmental microbiology
  • 1986
Branched-chain volatile fatty acid production, which increased as the dilution rate of a glucose-limited chemostat decreased, seemed to be associated with maintenance rather than with growth.

Induction of Pulmonary Edema and Emphysema in Cattle and Goats with 3-Methylindole

These results demonstrate than an end product of ruminal fermentation of tryptophan can induce acute pulmonary disease in cattle and goats.

Degradation of tryptophan and related indolic compounds by ruminal bacteria, protozoa and their mixture in vitro

Starch, d-glucose, salinomycin and monensin inhibited the production of skatole and indole from Trp, and skatoles from indoleacetic acid by rumen bacteria.

Ammonia-Hyperproducing Bacteria from New Zealand Ruminants

These isolates extend the diversity of known HAP rumen bacteria and indicate the presence of significant HAP bacterial populations in pasture-grazed New Zealand ruminants.

Tryptophan biosynthesis and production of other related compounds from indolepyruvic acid by mixed ruminal bacteria, protozoa, and their mixture in vitro.

Tryptophan biosynthesis and the production of other related compounds by mixed ruminal bacteria, protozoa, and their mixture in an in vitro system were quantitatively investigated by using 1 mM of indole-3-pyruvic acid (IPA) as substrate and indoleacetic acid (IAA) was a major product found in all microbial suspensions.

Production of branched-chain volatile fatty acids by certain anaerobic bacteria

  • M. J. Allison
  • Medicine, Biology
    Applied and environmental microbiology
  • 1978
Net production of isobutyric acid, isovaleric acid, and 2-methylbutyric acid by cultures of Bacteroides ruminicola and Megasphaera elsdenii on media that contained Trypticase or casein hydrolysate

Degradation of amino acids by pure cultures of rumen bacteria.

The total ruminal degradation of dietary AA occurs as a result of extensive bacterial interaction, and it appears that the two subspecies of Selenomonas tested, differed in their AA degradation patterns.

The rumen bacteria

It is to be hoped that the major obstacles to cultivation of the most numerous rumen bacteria have been overcome by the development of sufficiently rigorous anaerobic methods and of suitable isolation media.

Phylogeny of the ammonia-producing ruminal bacteria Peptostreptococcus anaerobius, Clostridium sticklandii, and Clostridium aminophilum sp. nov.

The sequence data made it clear that strain FT warranted designation as a separate species, and additional strains that are phenotypically similar to strain FT were isolated in this study.