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Record W2737817329

Antifungal activity of aqueous and organic extracts from Goldenrod

2017· article· en· W2737817329 on OpenAlexaboutno aff
Saša Hladnik

Bibliographic record

VenueRepository of the University of Ljubljana (University of Ljubljana) · 2017
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicEssential Oils and Antimicrobial Activity
Canadian institutionsnot available
Fundersnot available
KeywordsAlternaria alternataAureobasidium pullulansBiologyAlternariaBotanyInflorescenceBotrytis cinereaFusariumHorticultureMyceliumAspergillus flavusFood science
DOInot available

Abstract

fetched live from OpenAlex

In this Master's thesis we studied whether the extracts of the three goldenrod (Solidago) species have antifungal activity. Since the common goldenrod (S. virgaurea) is indigenous, and the other two – Canadian goldenrod (S. canadensis) and giant goldenrod (S. gigantea) are invasive alien species, we tested the differences in antifungal activity according to their origin and used plant material (leafs, inflorescence) and way of preparing extracts (aqueous, organic – 96 % ethanol). Fungi used in the study were: Alternaria alternata, Alternaria infectoria, Aspergillus flavus, Aureobasidium pullulans, Botrytis cynerea, Epicoccum nigrum, Fusarium poae and Penicillium palitans. We selected these species because of their negative effects on plants grown for food. After one week we measured the area of fungal mycelium and calculated the growth percentage according to the control. We found out that inhibition of fungal growth was similar when aqueous and organic extracts were applied. Also leaf extract caused similar effects as inflorescence extracts. According to the sensitivity to the extracts, the fungi followed the order: F. poae being the most sensitive, than E. nigurm, A. alternata, C. botrytis, A. pullulans, A. infectoria and P. palitans as the least sensitive. The differences in efficiency of the extracts of the leaf and inflorescence extracts of three goldenrod species were not significant.

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.688
Threshold uncertainty score0.983

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.010
GPT teacher head0.157
Teacher spread0.147 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
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

Citations2
Published2017
Admission routes1
Has abstractyes

Explore more

Same venueRepository of the University of Ljubljana (University of Ljubljana)Same topicEssential Oils and Antimicrobial ActivityFrench-language works237,207