Abstract
Plant defense response is an elaborate biochemical process shown to depend on the plant genetic background and on the biological stressor. This work evaluated the soybean biochemical foliar response to brown stink bug herbivory injury through an analysis of redox metabolism and proteomic 2DE profiles of susceptible (BRS Silvania RR) and resistant (IAC-100) varieties. The activity of lipoxygenase-3, guaiacol peroxidase, catalase and ascorbate peroxidase was monitored every 24 h up to 96 h. In the susceptible variety, injury caused an increase in the activities of lipoxygenase 3 and guaiacol peroxidase, no change in ascorbate peroxidase, and a decrease in catalase. In the resistant variety, injury did not cause an alteration of any of these enzymes. The proteomic profiles were evaluated after 24 h of injury and revealed to have a similar proportion (4-5%) of differential protein expression in both varieties. The differential proteins, identified by mass spectrometry, in the susceptible variety were related to general stress responses, to plant defense, and to fungal infections. However, in the resistant variety, the identified change in protein profile was related to Calvin cycle enzymes. While the susceptible variety showed adaptive changes in redox metabolism and expression of stress-responsive proteins, the resistant showed a defense response to circumvent the biological stressor.
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Claims 9
Claim · model-written summary
Injury increased lipoxygenase 3 and guaiacol peroxidase activity in susceptible soybean.
- Taxon
- Soybean
Glycine maxt0 - Material
- susceptible varietye0
- Treatment
- injurye0
- Interactor
- Brown Stink Bug Euschistus heros
Euschistus herost0 - Outcome
- activities of lipoxygenase 3 and guaiacol peroxidasee0
- Direction
- increasee0
Not reportedInteractor roleComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the susceptible variety, injury caused an increase in the activities of lipoxygenase 3 and guaiacol peroxidase, no change in ascorbate peroxidase, and a decrease in catalase.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”
Claim · model-written summary
Injury did not change ascorbate peroxidase activity in susceptible soybean.
- Taxon
- SoybeanGlycine maxt0
- Material
- susceptible varietye0
- Treatment
- injurye0
- Interactor
- Brown Stink Bug Euschistus herosEuschistus herost0
- Outcome
- ascorbate peroxidasee0
- Direction
- no changee0
Not reportedInteractor roleComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the susceptible variety, injury caused an increase in the activities of lipoxygenase 3 and guaiacol peroxidase, no change in ascorbate peroxidase, and a decrease in catalase.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”
Claim · model-written summary
Injury decreased catalase activity in susceptible soybean.
- Taxon
- SoybeanGlycine maxt0
- Material
- susceptible varietye0
- Treatment
- injurye0
- Interactor
- Brown Stink Bug Euschistus herosEuschistus herost0
- Outcome
- catalasee0
- Direction
- decreasee0
Not reportedInteractor roleComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the susceptible variety, injury caused an increase in the activities of lipoxygenase 3 and guaiacol peroxidase, no change in ascorbate peroxidase, and a decrease in catalase.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”
Claim · model-written summary
Injury did not alter monitored enzyme activities in resistant soybean.
- Taxon
- SoybeanGlycine maxt0
- Material
- resistant varietye0
- Treatment
- injurye0
- Interactor
- Brown Stink Bug Euschistus herosEuschistus herost0
- Outcome
- any of these enzymese0
- Direction
- did not cause an alteratione0
Not reportedInteractor roleComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the resistant variety, injury did not cause an alteration of any of these enzymes.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”
Claim · model-written summary
Both soybean varieties had 4-5% differential protein expression after 24 hours of injury.
- Taxon
- SoybeanGlycine maxt0
- Interactor
- Brown Stink Bug Euschistus herosEuschistus herost0
- Outcome
- differential protein expressione0
- Value
- 4-5%e0
- Qualifier
- after 24 h of injurye0
Not reportedInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The proteomic profiles were evaluated after 24 h of injury and revealed to have a similar proportion (4-5%) of differential protein expression in both varieties.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”
Claim · model-written summary
Differential proteins in the susceptible variety were related to stress, defense, and fungal infection.
- Taxon
- SoybeanGlycine maxt0
- Material
- susceptible varietye0
- Interactor
- Brown Stink Bug Euschistus herosEuschistus herost0
- Outcome
- general stress responses, to plant defense, and to fungal infectionse0
Not reportedInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The differential proteins, identified by mass spectrometry, in the susceptible variety were related to general stress responses, to plant defense, and to fungal infections.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”
Claim · model-written summary
Protein-profile changes in the resistant variety were related to Calvin cycle enzymes.
- Taxon
- SoybeanGlycine maxt0
- Material
- resistant varietye0
- Interactor
- Brown Stink Bug Euschistus herosEuschistus herost0
- Gene
- Calvin cycle enzymese0
- Outcome
- change in protein profilee0
Not reportedInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, in the resistant variety, the identified change in protein profile was related to Calvin cycle enzymes.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”
Claim · model-written summary
Authors interpret susceptible soybean as adapting redox metabolism and stress protein expression after injury.
- Taxon
- SoybeanGlycine maxt0
- Material
- susceptible varietye0
- Interactor
- Brown Stink Bug Euschistus herosEuschistus herost0
- Outcome
- adaptive changes in redox metabolism and expression of stress-responsive proteinse0
Not reportedInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While the susceptible variety showed adaptive changes in redox metabolism and expression of stress-responsive proteins, the resistant showed a defense response to circumvent the biological stressor.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”
Claim · model-written summary
Authors interpret resistant soybean as mounting a defense response to the herbivore.
- Taxon
- SoybeanGlycine maxt0
- Material
- resistante0
- Interactor
- Brown Stink Bug Euschistus herosEuschistus herost0
- Outcome
- defense response to circumvent the biological stressore0
Not reportedInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While the susceptible variety showed adaptive changes in redox metabolism and expression of stress-responsive proteins, the resistant showed a defense response to circumvent the biological stressor.”
t0“Soybean Response to Herbivory Injury by the Brown Stink Bug Euschistus heros (Hemiptera: Pentatomidae)”