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Record W4406410947 · doi:10.3168/jds.2024-25713

International Symposium on Ruminant Physiology: Rumen fungi, archaea, and their interactions

2025· review· en· W4406410947 on OpenAlexafffund
Tim A. McAllister, Krysty Thomas, Robert J. Gruninger, Mostafa S. Elshahed, Yuqi Li, Yanfen Cheng

Bibliographic record

VenueJournal of Dairy Science · 2025
Typereview
Languageen
FieldAgricultural and Biological Sciences
TopicRuminant Nutrition and Digestive Physiology
Canadian institutionsAgriculture and Agri-Food Canada
FundersNational Natural Science Foundation of ChinaBeef Cattle Research CouncilOklahoma State UniversityNational Institutes of HealthNational Science Foundation
KeywordsRuminantRumenArchaeaBiologyPhysiologyBiotechnologyFood scienceEcologyBacteriaFermentationPastureGenetics

Abstract

fetched live from OpenAlex

Anaerobic gut fungi (AGF) were the last phylum to be identified within the rumen microbiome and account for 7% to 9% of microbial biomass. They produce potent lignocellulases that degrade recalcitrant plant cell walls, and rhizoids that can penetrate the cuticle of plant cells, exposing internal components to other microbiota. Interspecies H 2 transfer between AGF and rumen methanogenic archaea is an essential metabolic process in the rumen that occurs during the reduction of CO 2 to CH 4 by methanogens. This symbiotic relationship is bolstered by hydrogensomes, fungal organelles that generate H 2 and formate. Interspecies H 2 transfer prevents the accumulation of reducing equivalents that would otherwise impede fermentation. The extent to which hydrogenosomes serve as a conduit for H 2 flow to methanogens is unknown, but it is likely greater with low-quality forages. Strategies that alter the production of CH 4 could also have implications for H 2 transfer by anaerobic fungi. Understanding the factors that drive these interactions and H 2 flow could provide insight into the effect of reducing CH 4 production on the activity of ruminal fungi and the digestion of low-quality feeds.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.043
Threshold uncertainty score0.144

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0020.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0030.002
Open science0.0010.002
Research integrity0.0030.003
Insufficient payload (model declined to judge)0.0430.017

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.036
GPT teacher head0.309
Teacher spread0.273 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreReview

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations9
Published2025
Admission routes2
Has abstractyes

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