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Record W7132863125

The Bacterial Microbiome of Four Hard Red Spring Wheat (Triticum aestivum) Cultivars in the Context of Fusarium Head Blight

2022· dissertation· W7132863125 on OpenAlexaboutno aff
Theresa Juanita-Marie Casselman

Bibliographic record

VenueTSpace · 2022
Typedissertation
Language
FieldAgricultural and Biological Sciences
TopicMycotoxins in Agriculture and Food
Canadian institutionsnot available
Fundersnot available
KeywordsFusariumCultivarContext (archaeology)OutbreakMycotoxinCropHost (biology)Bacterial blight
DOInot available

Abstract

fetched live from OpenAlex

Fusarium head blight (FHB) is a serious disease in wheat and other cereal grains, caused by several Fusarium species including Fusarium graminearum. The mycotoxins secreted by these fungal pathogens can be lethal if ingested in large quantities, and their accumulation in cereals results in significant annual crop losses worldwide. Current disease management strategies are struggling to cope with FHB outbreaks and could be improved via the identification and utilization of bacterial endophytes that provide their hosts with disease suppression against FHB. The aim of this project was to identify native bacterial endophytes in the wheat heads of four cultivars of Canadian hard red spring wheat of varying FHB resistance, to investigate any links between microbiome profile and host resistance level. DNA sequencing of the bacterial 16S rRNA gene revealed significant differences in species prevalence and abundance among cultivars and among samples collected at early and late stages of FHB infection.

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)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.052
Threshold uncertainty score0.104

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.031
GPT teacher head0.286
Teacher spread0.255 · 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 designObservational
Domainnot available
GenreEmpirical

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

Citations0
Published2022
Admission routes1
Has abstractyes

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