Abstract
Abstract CO 2 exchanges in intact barley leaves were studied by infra red gas analysis after inoculation with an incompatible race of powdery mildew. Net photosynthesis was inhibited, and dark and photorespiration were stimulated, by inoculation. The increase in respiratory processes was approximately equal to the change in net photosynthesis indicating that CO 2 fixation, “gross photosynthesis”, was unaffected by inoculation. It is concluded that changes in net photosynthesis may be the primary cause of the reduced quantity and quality of grain in incompatible barley/mildew combinations.
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Claims 6
Claim · model-written summary
Inoculation inhibited net photosynthesis in barley leaves.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- inoculatione0
- Interactor
- powdery mildewt0pathogen
- Outcome
- Net photosynthesise0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Barley/Powdery Mildew Combination”
e0“Net photosynthesis was inhibited, and dark and photorespiration were stimulated, by inoculation.”
Claim · model-written summary
Inoculation stimulated dark respiration in barley leaves.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- inoculatione0
- Interactor
- powdery mildewt0pathogen
- Outcome
- darke0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley/Powdery Mildew Combination”
e0“dark and photorespiration were stimulated, by inoculation”
Claim · model-written summary
Inoculation stimulated photorespiration in barley leaves.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- inoculatione0
- Interactor
- powdery mildewt0pathogen
- Outcome
- photorespiratione0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley/Powdery Mildew Combination”
e0“photorespiration were stimulated, by inoculation”
Claim · model-written summary
The respiratory increase approximately equaled the change in net photosynthesis.
- Taxon
- barleyHordeum vulgaret0
- Interactor
- powdery mildewt0pathogen
- Outcome
- respiratory processese0
- Direction
- increasee0
- Comparator
- change in net photosynthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley/Powdery Mildew Combination”
e0“The increase in respiratory processes was approximately equal to the change in net photosynthesis”
Claim · model-written summary
The authors inferred that inoculation left gross photosynthesis unaffected.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- inoculatione0
- Interactor
- powdery mildewt0pathogen
- Outcome
- CO 2 fixatione0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley/Powdery Mildew Combination”
e0“CO 2 fixation, “gross photosynthesis”, was unaffected by inoculation”
Claim · model-written summary
The authors concluded that changed net photosynthesis may primarily cause reduced grain quantity and quality in incompatible barley/mildew combinations.
- Taxon
- barleyHordeum vulgaret0
- Interactor
- mildewe0pathogen
- Outcome
- reduced quantity and quality of graine0
- Qualifier
- changes in net photosynthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley/Powdery Mildew Combination”
e0“changes in net photosynthesis may be the primary cause of the reduced quantity and quality of grain in incompatible barley/mildew combinations”
The same questions in other papers
inoculation · physiology: photosynthesis · Hordeum vulgare (barley)Positive and negative results
4 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
10 papers more in this group
See all 14 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.