Abstract
Abstract Cabbage ( Brassica oleracea var. capitata ) is an important vegetable crop among crucifers. It is affected by a bacterial disease known as black rot. Black rot is caused by Xanthomonas campestris pv. campestris a disease of worldwide importance. The present study highlights the effect of biotic inducer— Pseudomonas fluorescens —and an abiotic inducer—2,6‐dichloro‐isonicotinic acid—in combating black rot, followed by their effect on the seed treatment and disease incidence, role of antioxidant enzymes followed by validation of the defence‐related genes by quantitative real‐time PCR. The resistant ( Pusa mukta ) and the highly susceptible ( NBH boss ) cabbage cultivars were analysed for defence‐related enzymes such as peroxidase and superoxide dismutase. An increase in total peroxidase and superoxide dismutase activity was observed upon inoculation with X . campestris pv. campestris . The activity was greater in resistant cultivar when compared to susceptible ones. Both enzyme activity assays and qPCR analyses for the expression of the defence genes in susceptible and resistant cultivars demonstrated that the peroxidase gene was up‐regulated in resistant cultivar compared to susceptible cultivar. The present study proved that P. fluorescens ‐induced resistance against X. campestris pv. campestris in cabbage seedlings is more efficient as compared to the use of INA—abiotic inducer.
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Claims 4
Claim · model-written summary
Pathogen inoculation increased total peroxidase and superoxide dismutase activity in cabbage.
- Taxon
- Cabbage
Brassica oleracea var. capitatae1 - Treatment
- inoculation with X . campestris pv. campestrise0
- Interactor
- X . campestris pv. campestris
Xanthomonas campestris pv. campestrise0pathogen - Outcome
- total peroxidase and superoxide dismutase activitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in total peroxidase and superoxide dismutase activity was observed upon inoculation with X . campestris pv. campestris .”
e1“Cabbage ( Brassica oleracea var. capitata )”
Claim · model-written summary
Defense enzyme activity was greater in resistant than susceptible cabbage.
- Taxon
- cabbageBrassica oleracea var. capitatae1
- Material
- Pusa muktae1
- Outcome
- activitye0
- Direction
- greatere0
- Comparator
- susceptible onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity was greater in resistant cultivar when compared to susceptible ones.”
e1“The resistant ( Pusa mukta ) and the highly susceptible ( NBH boss ) cabbage cultivars”
Claim · model-written summary
The peroxidase gene was up-regulated in resistant relative to susceptible cabbage.
- Taxon
- cabbageBrassica oleracea var. capitatae1
- Gene
- peroxidase genee0
- Outcome
- peroxidase genee0
- Direction
- up‐regulatede0
- Comparator
- susceptible cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the peroxidase gene was up‐regulated in resistant cultivar compared to susceptible cultivar”
e1“cabbage cultivars”
Claim · model-written summary
P. fluorescens induced cabbage resistance more efficiently than INA.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- P. fluorescense0
- Interactor
- X. campestris pv. campestrisXanthomonas campestris pv. campestrise0pathogen
- Second interactor
- P. fluorescens
.JPG?width=60)
Pseudomonas fluorescense0biocontrol_agent - Outcome
- resistance against X. campestris pv. campestrise0
- Direction
- more efficiente0
- Comparator
- INAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“P. fluorescens ‐induced resistance against X. campestris pv. campestris in cabbage seedlings is more efficient as compared to the use of INA—abiotic inducer.”
The same questions in other papers
Pseudomonas fluorescens · Xanthomonas campestris pv. campestris · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
inoculation · Xanthomonas campestris pv. campestris · Brassica oleracea (wild cabbage)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
2 papers more in this group
See all 6 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.