Paper · 1988 · Canadian Journal of Botany

Effect of freezing resistance and low-temperature stress on development of cottony snow mold (Coprinus psychromorbidus) in winter wheat

D. A. Gaudet; T. H. H. Chen

5
claims
11
verbatim quotes
25
citations
2
research areas
—
Not open access

Abstract

The relationship between snow mold resistance and freezing resistance was studied under controlled-environment conditions, using winter wheat (Triticum aestivum L. em. Thell) cultivars varying in freezing resistance and resistance to cottony snow mold (Coprinus psychromorbidus Redhead & Traquair). Cultivars varying in freezing resistance were equally susceptible to C. psychromorbidus. There existed a negative relationship between snow mold resistance and freezing resistance. Sublethal, subzero freezing temperatures between −3 and −12 °C predisposed the winter wheat cultivar 'Winalta' to increased damage by C. psychromorbidus. A synergistic effect resulting in increased mortality was observed when winter wheat plants received a combination of low-temperature stress and inoculation with C. psychromorbidus. In hardened winter wheat plants, sublethal levels of snow mold damage following 6 weeks incubation with C. psychromorbidus resulted in a reduction in freezing resistance or LT 50 (50% killing temperature) of approximately 7 °C compared with the noninoculated controls. The possible role of low-temperature stress on the susceptibility of winter wheats to C. psychromorbidus and of snow mold infection on the retention of freezing resistance in winter wheats during winter in the central and northern Canadian prairies is discussed.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Winter wheat cultivars varying in freezing resistance were equally susceptible to Coprinus psychromorbidus.

Taxon
winter wheatTriticum aestivume0
Interactor
C. psychromorbidusCoprinopsis psychromorbidae1pathogen
Outcome
equally susceptiblee1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“winter wheat (Triticum aestivum L. em. Thell) cultivars”

✓ located verbatim in the source · abstract, characters 129–184 · show in text ↑
e1

“Cultivars varying in freezing resistance were equally susceptible to C. psychromorbidus”

✓ located verbatim in the source · abstract, characters 299–386 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Snow mold resistance and freezing resistance were negatively related in winter wheat.

Taxon
winter wheatTriticum aestivume0
Outcome
snow mold resistancee2
Direction
decreaseinferrede2
Comparator
freezing resistancee2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“winter wheat (Triticum aestivum L. em. Thell) cultivars”

✓ located verbatim in the source · abstract, characters 129–184 · show in text ↑
e2

“There existed a negative relationship between snow mold resistance and freezing resistance”

✓ located verbatim in the source · abstract, characters 388–478 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sublethal subzero freezing temperatures between −3 and −12 °C predisposed the winter wheat cultivar Winalta to increased damage by C. psychromorbidus.

Taxon
winter wheatTriticum aestivume0
Material
Winaltae3
Treatment
Sublethal, subzero freezing temperatures between −3 and −12 °Ce4
Interactor
C. psychromorbidusCoprinopsis psychromorbidae3pathogen
Outcome
damagee3
Direction
increasede3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“winter wheat (Triticum aestivum L. em. Thell) cultivars”

✓ located verbatim in the source · abstract, characters 129–184 · show in text ↑
e3

“predisposed the winter wheat cultivar 'Winalta' to increased damage by C. psychromorbidus”

✓ located verbatim in the source · abstract, characters 543–632 · show in text ↑
e4

“Sublethal, subzero freezing temperatures between −3 and −12 °C”

✓ located verbatim in the source · abstract, characters 480–542 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low-temperature stress combined with C. psychromorbidus inoculation synergistically increased winter wheat mortality.

Taxon
winter wheatTriticum aestivume0
Treatment
low-temperature stress and inoculation with C. psychromorbiduse5
Interactor
C. psychromorbidusCoprinopsis psychromorbidae5pathogen
Outcome
mortalitye5
Direction
increasede5
Qualifier
synergistic effecte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“winter wheat (Triticum aestivum L. em. Thell) cultivars”

✓ located verbatim in the source · abstract, characters 129–184 · show in text ↑
e5

“A synergistic effect resulting in increased mortality was observed when winter wheat plants received a combination of low-temperature stress and inoculation with C. psychromorbidus”

✓ located verbatim in the source · abstract, characters 634–814 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Snow mold damage from 6 weeks of C. psychromorbidus incubation reduced freezing resistance (LT 50) of hardened winter wheat by about 7 °C.

Taxon
winter wheatTriticum aestivume0
Treatment
6 weeks incubation with C. psychromorbiduse6
Interactor
C. psychromorbidusCoprinopsis psychromorbidae6pathogen
Outcome
freezing resistance or LT 50e6
Direction
reductione6
Value
approximately 7 °Ce6
Comparator
noninoculated controlse6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“winter wheat (Triticum aestivum L. em. Thell) cultivars”

✓ located verbatim in the source · abstract, characters 129–184 · show in text ↑
e6

“sublethal levels of snow mold damage following 6 weeks incubation with C. psychromorbidus resulted in a reduction in freezing resistance or LT 50 (50% killing temperature) of approximately 7 °C compared with the noninoculated controls”

✓ located verbatim in the source · abstract, characters 849–1083 · show in text ↑

cold · pest · Triticum aestivum (wheat)Positive and negative results

8 papers: 4 positive, 4 negative or no effect

3 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

inoculation · pest · Triticum aestivum (wheat)Positive and negative results

24 papers: 22 positive, 2 negative or no effect

1 paper in the same direction as this paper · 22 in the opposite direction

  1. positive
  2. positive
  3. positive

20 papers more in this group

See all 24 papers →

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.