Paper · 1960 · Canadian Journal of Microbiology

STUDIES ON THE METABOLISM OF LEAVES WITH LOCALIZED VIRUS INFECTIONS: I. OXYGEN UPTAKE

M. Weintraub; W. G. Kemp; H. W. J. Ragetli

9
claims
14
verbatim quotes
25
citations
2
research areas
—
Not open access

Abstract

Infection of Nicotiana glutinosa with tobacco mosaic virus, of Dianthus barbatus with a carnation virus, of Gomphrena globosa with potato virus X, and of N. tabacum with two strains of turnip mosaic virus produced local lesions and significantly increased O 2 uptake to an extent dependent upon the stage of infection. Increased respiration in N. glutinosa, as measured by O 2 uptake, was detected 7–10 hours before lesions appeared. When infected plants were maintained at 32 °C, the rise in respiration occurred 8–15 hours before the appearance of lesions, indicating an increase or prolongation of virus multiplication. Local lesion infection of other hosts, though differing in detail, had essentially the same effect. Non-virus injury, including artificially produced necrotic local lesions, did not induce a similar increase in respiration. When necrotic areas were excised from infected disks the remaining portions still respired at a greater rate than healthy controls. Increased respiration appeared to be correlated with virus activity other than the necrotic process.

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 9

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Tobacco mosaic virus infection increased oxygen uptake in Nicotiana glutinosa.

Taxon
Nicotiana glutinosaNicotiana glutinosae0
Treatment
Infection of Nicotiana glutinosa with tobacco mosaic viruse0
Interactor
tobacco mosaic virusTobacco mosaic viruse0pathogen
Outcome
O 2 uptakee0
Direction
increasede0

Not reportedComparator

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

Nicotiana glutinosa
Nicotiana glutinosa · TaxonUleli · CC BY 3.0 · Wikimedia Commons ↗
Tobacco mosaic virus
Tobacco mosaic virus · InteractorFrank Vincentz · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Infection of Nicotiana glutinosa with tobacco mosaic virus, of Dianthus barbatus with a carnation virus, of Gomphrena globosa with potato virus X, and of N. tabacum with two strains of turnip mosaic virus produced local lesions and significantly increased O 2 uptake to an extent dependent upon the stage of infection”

✓ located verbatim in the source · abstract, characters 0–317 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Carnation virus infection increased oxygen uptake in Dianthus barbatus.

Taxon
Dianthus barbatusDianthus barbatuse0
Treatment
Dianthus barbatus with a carnation viruse0
Interactor
a carnation viruse0pathogen
Outcome
O 2 uptakee0
Direction
increasede0

Not reportedComparator

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

Dianthus barbatus
Dianthus barbatus · TaxonBenjamin Zwittnig · CC BY 2.5 si · Wikimedia Commons ↗

Verbatim

e0

“Infection of Nicotiana glutinosa with tobacco mosaic virus, of Dianthus barbatus with a carnation virus, of Gomphrena globosa with potato virus X, and of N. tabacum with two strains of turnip mosaic virus produced local lesions and significantly increased O 2 uptake to an extent dependent upon the stage of infection”

✓ located verbatim in the source · abstract, characters 0–317 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Potato virus X infection increased oxygen uptake in Gomphrena globosa.

Taxon
Gomphrena globosaGomphrena globosae0
Treatment
Gomphrena globosa with potato virus Xe0
Interactor
potato virus XPotato virus Xe0pathogen
Outcome
O 2 uptakee0
Direction
increasede0

Not reportedComparator

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

Gomphrena globosa
Gomphrena globosa · TaxonForest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Infection of Nicotiana glutinosa with tobacco mosaic virus, of Dianthus barbatus with a carnation virus, of Gomphrena globosa with potato virus X, and of N. tabacum with two strains of turnip mosaic virus produced local lesions and significantly increased O 2 uptake to an extent dependent upon the stage of infection”

✓ located verbatim in the source · abstract, characters 0–317 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Turnip mosaic virus infection increased oxygen uptake in N. tabacum.

Taxon
N. tabacumNicotiana tabacume0
Treatment
N. tabacum with two strains of turnip mosaic viruse0
Interactor
turnip mosaic virusTurnip mosaic viruse0pathogen
Outcome
O 2 uptakee0
Direction
increasede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗
Turnip mosaic virus
Turnip mosaic virus · InteractorDavid B. Langston, University of Georgia, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Infection of Nicotiana glutinosa with tobacco mosaic virus, of Dianthus barbatus with a carnation virus, of Gomphrena globosa with potato virus X, and of N. tabacum with two strains of turnip mosaic virus produced local lesions and significantly increased O 2 uptake to an extent dependent upon the stage of infection”

✓ located verbatim in the source · abstract, characters 0–317 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

In N. glutinosa, increased respiration preceded lesions by 7–10 hours.

Taxon
N. glutinosaNicotiana glutinosae0
Interactor
tobacco mosaic virusTobacco mosaic viruse1pathogen
Outcome
Increased respiratione0
Value
7–10 hourse0

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

Nicotiana glutinosa
Nicotiana glutinosa · TaxonUleli · CC BY 3.0 · Wikimedia Commons ↗
Tobacco mosaic virus
Tobacco mosaic virus · InteractorFrank Vincentz · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Increased respiration in N. glutinosa, as measured by O 2 uptake, was detected 7–10 hours before lesions appeared”

✓ located verbatim in the source · abstract, characters 319–432 · show in text ↑
e1

“tobacco mosaic virus”

✓ located verbatim in the source · abstract, characters 38–58 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

At 32 °C, the respiration rise preceded lesions by 8–15 hours.

Taxon
N. glutinosaNicotiana glutinosae1
Treatment
32 °Ce0
Outcome
rise in respiratione0
Value
8–15 hourse0

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

Nicotiana glutinosa
Nicotiana glutinosa · TaxonUleli · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“When infected plants were maintained at 32 °C, the rise in respiration occurred 8–15 hours before the appearance of lesions”

✓ located verbatim in the source · abstract, characters 434–557 · show in text ↑
e1

“N. glutinosa”

✓ located verbatim in the source · abstract, characters 344–356 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Non-virus injury did not induce a similar respiration increase.

Taxon
N. glutinosaNicotiana glutinosae1
Treatment
Non-virus injurye0
Outcome
respiratione0
Direction
did not induce a similar increasee0

Not reportedComparator

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

Nicotiana glutinosa
Nicotiana glutinosa · TaxonUleli · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Non-virus injury, including artificially produced necrotic local lesions, did not induce a similar increase in respiration”

✓ located verbatim in the source · abstract, characters 723–845 · show in text ↑
e1

“N. glutinosa”

✓ located verbatim in the source · abstract, characters 344–356 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

After necrotic areas were excised, infected disks respired faster than healthy controls.

Taxon
N. glutinosaNicotiana glutinosae1
Treatment
necrotic areas were excisede0
Outcome
respirede0
Direction
greater ratee0
Comparator
healthy controlse0

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

Nicotiana glutinosa
Nicotiana glutinosa · TaxonUleli · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“When necrotic areas were excised from infected disks the remaining portions still respired at a greater rate than healthy controls”

✓ located verbatim in the source · abstract, characters 847–977 · show in text ↑
e1

“N. glutinosa”

✓ located verbatim in the source · abstract, characters 344–356 · show in text ↑
Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Increased respiration was correlated with virus activity beyond necrosis.

Taxon
N. glutinosaNicotiana glutinosae1
Interactor
viruse0pathogen
Outcome
Increased respiratione0

Not reportedDirection

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

Nicotiana glutinosa
Nicotiana glutinosa · TaxonUleli · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Increased respiration appeared to be correlated with virus activity other than the necrotic process”

✓ located verbatim in the source · abstract, characters 979–1078 · show in text ↑
e1

“N. glutinosa”

✓ located verbatim in the source · abstract, characters 344–356 · show in text ↑

Nicotiana tabacum · Tobacco mosaic virus · Nicotiana glutinosaPositive and negative results

11 papers: 5 positive, 6 negative or no effect

5 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

infection · Tobacco mosaic virus · Nicotiana glutinosaPositive and negative results

9 papers: 5 positive, 4 negative or no effect

3 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. positive
  3. positive

5 papers more in this group

See all 9 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.