Abstract
Inoculating Proctor barley leaves with Erysiphe graminis decreased rates of photosynthesis, after an initial lag period, and increased respiration. Increasing the area inoculated progressively decreased rates of photosynthesis, but the effects cannot be attributed to a simple loss of leaf area. When less than 30 per cent of a leaf was inoculated, decreases were equivalent to area losses greater than those inoculated; when more than 30 per cent was inoculated the photo-synthetic losses were equivalent to area losses less than those inoculated. Although the relative effects of E. graminis on photosynthesis and respiration were of the same order, the absolute effects on photosynthesis were greater than those on respiration. Inoculating 30 per cent of a leaf decreased photosynthesis by 5–6 mg CO2/dm2/hr from 12.9 in the uninoculated controls to 7.3. Respiration increased by 0.6 mg CO2/dm/hr, from 1.7 to 2.3-
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Claims 8
Claim · model-written summary
Inoculation decreased photosynthesis after a lag.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Material
- Proctore0
- Organ / stage
- leavese0
- Treatment
- Inoculating Proctor barley leaves with Erysiphe graminise0
- Interactor
- Erysiphe graminis
Blumeria graminise0pathogen - Outcome
- rates of photosynthesise0
- Direction
- decreasede0
- Qualifier
- after an initial lag periode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Inoculating Proctor barley leaves with Erysiphe graminis decreased rates of photosynthesis, after an initial lag period”
Claim · model-written summary
Inoculation increased respiration.
- Taxon
- barleyHordeum vulgaree0
- Material
- Proctore0
- Organ / stage
- leavese0
- Treatment
- Inoculating Proctor barley leaves with Erysiphe graminise0
- Interactor
- Erysiphe graminisBlumeria graminise0pathogen
- Outcome
- respiratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculating Proctor barley leaves with Erysiphe graminis decreased rates of photosynthesis, after an initial lag period, and increased respiration.”
Claim · model-written summary
Larger inoculated area progressively decreased photosynthesis.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Increasing the area inoculatede0
- Outcome
- rates of photosynthesise0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the area inoculated progressively decreased rates of photosynthesis”
t0“Barley”
Claim · model-written summary
Below 30 per cent inoculated area, photosynthetic loss exceeded the area inoculated.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- decreasese0
- Direction
- greater thane0
- Qualifier
- less than 30 per cent of a leafe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When less than 30 per cent of a leaf was inoculated, decreases were equivalent to area losses greater than those inoculated”
t0“Barley”
Claim · model-written summary
Above 30 per cent inoculated area, photosynthetic loss was less than the area inoculated.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- photo-synthetic lossese0
- Direction
- less thane0
- Qualifier
- more than 30 per cente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when more than 30 per cent was inoculated the photo-synthetic losses were equivalent to area losses less than those inoculated”
t0“Barley”
Claim · model-written summary
Absolute effects on photosynthesis exceeded those on respiration.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- absolute effects on photosynthesise0
- Direction
- greater thane0
- Comparator
- respiratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the absolute effects on photosynthesis were greater than those on respiration”
t0“Barley”
Claim · model-written summary
Inoculating 30 per cent of a leaf decreased photosynthesis by 5–6 mg CO2/dm2/hr.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Inoculating 30 per cent of a leafe0
- Outcome
- photosynthesise0
- Direction
- decreasede0
- Value
- 5–6 mg CO2/dm2/hre0
- Qualifier
- from 12.9 in the uninoculated controls to 7.3e0
- Comparator
- uninoculated controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculating 30 per cent of a leaf decreased photosynthesis by 5–6 mg CO2/dm2/hr from 12.9 in the uninoculated controls to 7.3.”
t0“Barley”
Claim · model-written summary
Respiration increased by 0.6 mg CO2/dm/hr.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- Respiratione0
- Direction
- increasede0
- Value
- 0.6 mg CO2/dm/hre0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Respiration increased by 0.6 mg CO2/dm/hr, from 1.7 to 2.3-”
t0“Barley”
The same questions in other papers
inoculation · physiology: respiration · Hordeum vulgare (barley)Positive and negative results
1 in the opposite direction
- positive
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.