Podosphaera 7 claims

genus · family Erysiphaceae · fungus · NCBI Taxonomy ↗

Also written in claims: Sphaerotheca — NCBI synonyms: Sphaerotheca

3 spellings

Podosphaera · picture from its Wikimedia Commons categoryAlexoutside · CC BY 4.0 · Wikimedia Commons ↗

7 claims

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Observationobservedoriginal resultmeasured

Claim · model-written summary

ITS-based phylogenetic analysis supports recognition of the fungus as a species of Podosphaera distinct from P. aphanis.

Taxon: PodosphaeraPodosphaerae0
Outcome: recognition as a species of Podosphaera, distinct from P. aphanise0

Verbatim

e0
“Phylogenetic analysis based on ITS sequences supports its recognition as a species of Podosphaera, distinct from P. aphanis”
✓ located verbatim in the source · abstract, characters 637–760

Title

Morphological and molecular characterization of Podosphaera hyalina comb. nov. parasitizing creeping sibbaldia ( Sibbaldia procumbens ) in Pakistan

Muhammada Jabeen; Najam-Ul-Sehar Afshan; Saliha Afzal; et al. Canadian Journal of Plant Pathology 2025. doi:10.1080/07060661.2024.2445602

Other claims from this paper (2)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Asexual morphology corresponded to Podosphaera sp.

Taxon: Podosphaera sp.Podosphaerae0
Outcome: morphological characteristics of asexual structurese0

Verbatim

e0
“The morphological characteristics of asexual structures corresponded to Podosphaera sp.”
✓ located verbatim in the source · abstract, characters 950–1037

Title

First Report of Powdery Mildew Caused by Podosphaera fusca on Coreopsis tinctoria in China

Dandan Xu; Junsong Liang; Tiantian Zhou; et al. Plant Disease 2023. doi:10.1094/pdis-10-23-2089-pdn

Other claims from this paper (14)

Observation Severe powdery mildew was observed on C. tinctoria in June 2023.
Observation Approximately 75% of C. tinctoria plants showed powdery mildew signs and symptoms.
Observation The fungus had thin-walled, smooth or nearly smooth generative hyphae 5 to 9 μm wide.
Observation Conidiophores were unbranched and straight, measuring 80.5 to 162.5 × 9.3 to 12.9 μm.
Observation Conidiophores produced one to three immature conidia.
Observation Foot-cells of conidiophores were cylindrical and 38.5 to 62.3 μm long.
Observation Conidia were ellipsoid to ovoid, measuring 25.1 to 31.9 × 15.2 to 19.5 μm.
Observation ITS sequence identity to the reference Podosphaera fusca isolate was 99.63%.
Observation LSU sequence identity to the reference Podosphaera fusca isolate was 100%.
Observation CT2302 formed a monophyletic clade with P. fusca isolates.
Observation Morphological and molecular characteristics identified the fungus as P. fusca.
Intervention effect All inoculated leaves developed powdery mildew symptoms after 12 days.
Observation Control leaves showed no powdery mildew symptoms.
Observation This is the first report of P. fusca on C. tinctoria in China.

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Immersion for 20 to 50 h produced no consistent change in mildew development.

Taxon: SphaerothecaPodosphaerat0
Treatment: immersion was for 20 to 50 h duratione0
Outcome: mildew developmente0
Direction: no consistent increase or decreasee0

Not reportedComparator

Verbatim

e0
“If immersion was for 20 to 50 h duration, there was usually no consistent increase or decrease in mildew development”
✓ located verbatim in the source · abstract, characters 338–454

t0
“Sphaerotheca”
✓ located verbatim in the source · title, characters 17–29

Title

Water Stimulates Sphaerotheca

C. E. Yarwood Mycologia 1978. doi:10.2307/3759136

Other claims from this paper (8)

Intervention effect Immersion for 1 sec to 20 h made cucumber mildew cover leaves sooner, sporulate sooner, and produce more conidia than on unwetted leaves.
Intervention effect Immersion for 50–70 h usually inhibited mildew.
Intervention effect Immersion for 50–70 h did not injure the host.
Intervention effect Immersion beyond 70 h was usually lethal to mildew.
Intervention effect Immersion beyond 100 h injured cucumber leaves.
Intervention effect Low-impact water spraying increased mildew on inoculated leaves.
Intervention effect High-impact water spraying prevented infection or cured infected plants.
Observation Powdery mildews on bean, barley, dock, and zinnia tolerated water but were not clearly stimulated by it.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Immersion for 50–70 h usually inhibited mildew.

Taxon: SphaerothecaPodosphaerat0
Treatment: Immersions of 50–70 he0
Outcome: mildewe0
Direction: inhibitorye0

Not reportedComparator

Verbatim

e0
“Immersions of 50–70 h were usually inhibitory to the mildew”
✓ located verbatim in the source · abstract, characters 456–515

t0
“Sphaerotheca”
✓ located verbatim in the source · title, characters 17–29

Title

Water Stimulates Sphaerotheca

C. E. Yarwood Mycologia 1978. doi:10.2307/3759136

Other claims from this paper (8)

Intervention effect Immersion for 1 sec to 20 h made cucumber mildew cover leaves sooner, sporulate sooner, and produce more conidia than on unwetted leaves.
Intervention effect Immersion for 20 to 50 h produced no consistent change in mildew development.
Intervention effect Immersion for 50–70 h did not injure the host.
Intervention effect Immersion beyond 70 h was usually lethal to mildew.
Intervention effect Immersion beyond 100 h injured cucumber leaves.
Intervention effect Low-impact water spraying increased mildew on inoculated leaves.
Intervention effect High-impact water spraying prevented infection or cured infected plants.
Observation Powdery mildews on bean, barley, dock, and zinnia tolerated water but were not clearly stimulated by it.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Immersion beyond 70 h was usually lethal to mildew.

Taxon: SphaerothecaPodosphaerat0
Treatment: Immersions of more than 70 he0
Outcome: lethal to the mildewe0

Not reportedComparatorDirection

Verbatim

e0
“Immersions of more than 70 h were usually lethal to the mildew”
✓ located verbatim in the source · abstract, characters 548–610

t0
“Sphaerotheca”
✓ located verbatim in the source · title, characters 17–29

Title

Water Stimulates Sphaerotheca

C. E. Yarwood Mycologia 1978. doi:10.2307/3759136

Other claims from this paper (8)

Intervention effect Immersion for 1 sec to 20 h made cucumber mildew cover leaves sooner, sporulate sooner, and produce more conidia than on unwetted leaves.
Intervention effect Immersion for 20 to 50 h produced no consistent change in mildew development.
Intervention effect Immersion for 50–70 h usually inhibited mildew.
Intervention effect Immersion for 50–70 h did not injure the host.
Intervention effect Immersion beyond 100 h injured cucumber leaves.
Intervention effect Low-impact water spraying increased mildew on inoculated leaves.
Intervention effect High-impact water spraying prevented infection or cured infected plants.
Observation Powdery mildews on bean, barley, dock, and zinnia tolerated water but were not clearly stimulated by it.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low-impact water spraying increased mildew on inoculated leaves.

Taxon: SphaerothecaPodosphaerat0
Treatment: Spraying inoculated leaves with water at low impact pressuree0
Outcome: mildewe0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Spraying inoculated leaves with water at low impact pressure also increased mildew”
✓ located verbatim in the source · abstract, characters 676–758