Abstract
Glycine max (L) Morrill, were grown in the greenhouse until the first trifoliate leaf was 1/3 expanded and exposed to 598 ..mu..g/m/sup 3/ (0.30 ppm) ozone for 3 or 4 h at 20/sup 0/C and 70% RH. Ozone at this concentration induced a low level of injury to primary leaves. At 24, 48, 96, 144 and 168 h after ozone exposure, bacteria were infiltrated into one primary leaf of a set of two plants/pot with the use of a vacuum desiccator. The opposite leaf and leaves of companion plants served as controls. Inoculum was a water suspension of 3 x 10/sup 7/ cells/ml of a Pseudomonas sp. that induced a hypersensitive response (HR). Inoculum at this concentration induced the typical rapid tissue collapse associated with HR. Plants were placed in plastic bags for 24 h after inoculation and maintained in the greenhouse. Ozone injury and HR were evaluated on the basis of surface area and intensity of symptoms. There were no significant differences in ozone injury levels in foliage when bacteria were subsequently infiltrated. Inhibition of HR was observed when leaves were inoculated 24 and 48 h after ozone exposure in each of 4 experiments. Inhibition of HR was observedmore » when leaves were inoculated 24 and 48 h after ozone exposure in each of 4 experiments. Inhibition of HR was observed in 2 of 3 experiments 96 h after ozonation. Inhibition of HR was apparent in 1 of 2 experiments conducted 144 h after inoculation and not at all 168 h after ozone exposure.« less
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Claims 6
Claim · model-written summary
Ozone exposure induced a low level of injury to soybean primary leaves.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Ozone at this concentratione1
- Outcome
- injury to primary leavese1
- Qualifier
- low levele1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ozone pretreatment protects soybean foliage against a bacteria-induced hypersensitive response”
e1“Ozone at this concentration induced a low level of injury to primary leaves”
Claim · model-written summary
Bacterial infiltration after ozone exposure did not change ozone injury levels in soybean foliage.
- Taxon
- soybeanGlycine maxt0
- Treatment
- bacteriae1
- Outcome
- ozone injury levelse1
- Direction
- no significant differencese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ozone pretreatment protects soybean foliage against a bacteria-induced hypersensitive response”
e1“There were no significant differences in ozone injury levels in foliage when bacteria were subsequently infiltrated”
Claim · model-written summary
Ozone exposure inhibited the Pseudomonas-induced HR in soybean when leaves were inoculated 24 and 48 h later, in each of 4 experiments.
- Taxon
- soybeanGlycine maxt0
- Treatment
- ozone exposuree1
- Interactor
- Pseudomonas sp.
Pseudomonase2pathogen - Outcome
- HRe1
- Direction
- Inhibitione1
- Qualifier
- in each of 4 experimentse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ozone pretreatment protects soybean foliage against a bacteria-induced hypersensitive response”
e1“Inhibition of HR was observed when leaves were inoculated 24 and 48 h after ozone exposure in each of 4 experiments”
e2“of a Pseudomonas sp. that induced a hypersensitive response (HR)”
Claim · model-written summary
Ozone exposure inhibited HR in soybean in 2 of 3 experiments when inoculated 96 h after ozonation.
- Taxon
- soybeanGlycine maxt0
- Treatment
- ozonatione1
- Interactor
- Pseudomonas sp.Pseudomonase2pathogen
- Outcome
- HRe1
- Direction
- Inhibitione1
- Qualifier
- 2 of 3 experimentse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ozone pretreatment protects soybean foliage against a bacteria-induced hypersensitive response”
e1“Inhibition of HR was observed in 2 of 3 experiments 96 h after ozonation”
e2“of a Pseudomonas sp. that induced a hypersensitive response (HR)”
Claim · model-written summary
Ozone pretreatment inhibited HR in soybean in 1 of 2 experiments inoculated 144 h after ozone exposure.
- Taxon
- soybeanGlycine maxt0
- Treatment
- ozone exposuree2
- Interactor
- Pseudomonas sp.Pseudomonase3pathogen
- Outcome
- HRe1
- Direction
- Inhibitione1
- Qualifier
- 1 of 2 experimentse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ozone pretreatment protects soybean foliage against a bacteria-induced hypersensitive response”
e1“Inhibition of HR was apparent in 1 of 2 experiments conducted 144 h after inoculation”
e2“Inhibition of HR was apparent in 1 of 2 experiments conducted 144 h after inoculation and not at all 168 h after ozone exposure”
e3“of a Pseudomonas sp. that induced a hypersensitive response (HR)”
Claim · model-written summary
Ozone exposure did not inhibit HR in soybean when leaves were inoculated 168 h after ozone exposure.
- Taxon
- soybeanGlycine maxt0
- Treatment
- ozone exposuree1
- Interactor
- Pseudomonas sp.Pseudomonase2pathogen
- Outcome
- HRe1
- Direction
- not at alle1
- Qualifier
- 168 he1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ozone pretreatment protects soybean foliage against a bacteria-induced hypersensitive response”
e1“Inhibition of HR was apparent in 1 of 2 experiments conducted 144 h after inoculation and not at all 168 h after ozone exposure”
e2“of a Pseudomonas sp. that induced a hypersensitive response (HR)”
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See all 7 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.