Abstract
This study endeavored to test two hypotheses: (i) Hyalorbilia oviparasitica and related species (H. oviparasitica clade) will be detected in sugar beet fields in California’s Imperial Valley and (ii) the population densities of these fungi will increase in the presence of their nematode host (Heterodera schachtii) and a host plant of this nematode. The H. oviparasitica clade includes potent hyperparasites of sedentary stages of plant-parasitic nematodes, which have the ability to substantially suppress the population densities of several endoparasitic nematode species. In this study, 21 of 25 Imperial Valley soils cropped to sugar beets harbored members of the H. oviparasitica clade. The population densities of these fungi increased, on average, approximately 10,000-fold in the presence of H. schachtii and its host Swiss Chard over one nematode generation. An rRNA ITS sequence analysis showed that members of the H. oviparasitica clade were the dominant group of fungi associated with H. schachtii females derived from these soils. These results provide evidence supporting the hypotheses. [Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license .
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Claims 3
Claim · model-written summary
The H. oviparasitica clade occurred in 21 of 25 soils cropped to sugar beets.
- Taxon
- sugar beets
Beta vulgaris subsp. vulgarise0 - Interactor
- H. oviparasitica cladeHyalorbilia oviparasiticae0biocontrol_agent
- Outcome
- harbored members of the H. oviparasitica cladee0
- Value
- 21 of 25e0
- Setting
- Imperial Valleye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this study, 21 of 25 Imperial Valley soils cropped to sugar beets harbored members of the H. oviparasitica clade.”
Claim · model-written summary
The fungi increased roughly 10,000-fold with H. schachtii and its host Swiss Chard over one nematode generation.
- Taxon
- Swiss ChardBeta vulgaris subsp. vulgarise0
- Treatment
- presence of H. schachtii and its host Swiss Charde0
- Interactor
- H. schachtiiHeterodera schachtiie0pest
- Outcome
- population densities of these fungie0
- Direction
- increasede0
- Value
- approximately 10,000-folde0
- Qualifier
- over one nematode generatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The population densities of these fungi increased, on average, approximately 10,000-fold in the presence of H. schachtii and its host Swiss Chard over one nematode generation.”
Claim · model-written summary
Members of the H. oviparasitica clade dominated fungi associated with H. schachtii females from these soils.
- Taxon
- Sugar BeetsBeta vulgaris subsp. vulgarist0
- Interactor
- H. schachtiiHeterodera schachtiie0pest
- Outcome
- dominant group of fungi associated with H. schachtii femalese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugar Beets”
e0“An rRNA ITS sequence analysis showed that members of the H. oviparasitica clade were the dominant group of fungi associated with H. schachtii females derived from these soils.”
The same questions in other papers
Heterodera schachtii · pest · Beta vulgaris (beet)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
Beta vulgaris subsp. vulgaris · pest · Beta vulgaris (beet)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.