Abstract
Black rot of cabbage caused by Xanthomonas campestris pv. campestris is one of the most important diseases of crucifers worldwide. Expression of defence-related enzymes in cabbage in response to X. campestris pv. campestris was investigated in the current experiment. Among the defence-related enzymes (phynylalanine ammonia lyase, peroxidase, polyphenol oxidase, superoxide dismutase [SOD] and chitinase) and quantity of phenolic compounds studied in the present investigation, phenylalanine ammonia lyase (PAL), the key enzyme in the phenylpropanoid pathway was the first enzyme suppressed at three days after inoculation in X. campestris pv. campestris-cabbage system. Correlation analysis indicated that PAL and phenolic compounds are the two most important compounds determining the susceptibility of cabbage to X. campestris pv. campestris. Induction of peroxidase isoform-1 (Rf value: 0.059) and SOD isoform-1 (Rf value: 0.179) three days after pathogen inoculation implicated the role of these isozymes in susceptible cabbage – X. campestris pv. campestris interaction. This study demonstrates the susceptibility of cabbage to X. campestris pv. campestris is a result of declination of PAL and phenolic contents at biochemical level as a manifestation of increase in bacterial population at the cellular level within the host tissues.
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Claims 5
Claim · model-written summary
PAL was suppressed three days after inoculation in cabbage.
- Taxon
- cabbage
Brassica oleracea var. capitatae0 - Treatment
- inoculatione0
- Interactor
- X. campestris pv. campestris
Xanthomonas campestris pv. campestrise0pathogen - Gene
- phenylalanine ammonia lyase (PAL)e0
- Outcome
- phenylalanine ammonia lyase (PAL)e0
- Direction
- suppressede0
- Qualifier
- three days after inoculatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phenylalanine ammonia lyase (PAL), the key enzyme in the phenylpropanoid pathway was the first enzyme suppressed at three days after inoculation in X. campestris pv. campestris-cabbage system.”
Claim · model-written summary
PAL and phenolic compounds were associated with cabbage susceptibility.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Interactor
- X. campestris pv. campestrisXanthomonas campestris pv. campestrise0pathogen
- Gene
- PALe0
- Compound
- phenolic compoundse0
- Outcome
- susceptibility of cabbagee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PAL and phenolic compounds are the two most important compounds determining the susceptibility of cabbage to X. campestris pv. campestris.”
Claim · model-written summary
Peroxidase isoform-1 was induced three days after inoculation.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- pathogen inoculatione0
- Interactor
- X. campestris pv. campestrisXanthomonas campestris pv. campestrise0pathogen
- Gene
- peroxidase isoform-1e0
- Outcome
- peroxidase isoform-1e0
- Direction
- Inductione0
- Value
- 0.059e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Induction of peroxidase isoform-1 (Rf value: 0.059) and SOD isoform-1 (Rf value: 0.179) three days after pathogen inoculation implicated the role of these isozymes in susceptible cabbage – X. campestris pv. campestris interaction.”
Claim · model-written summary
SOD isoform-1 was induced three days after inoculation.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- pathogen inoculatione0
- Interactor
- X. campestris pv. campestrisXanthomonas campestris pv. campestrise0pathogen
- Gene
- SOD isoform-1e0
- Outcome
- SOD isoform-1e0
- Direction
- Inductione0
- Value
- 0.179e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Induction of peroxidase isoform-1 (Rf value: 0.059) and SOD isoform-1 (Rf value: 0.179) three days after pathogen inoculation implicated the role of these isozymes in susceptible cabbage – X. campestris pv. campestris interaction.”
Claim · model-written summary
The authors attribute cabbage susceptibility to declining PAL and phenolic contents with increasing bacterial population.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Interactor
- X. campestris pv. campestrisXanthomonas campestris pv. campestrise0pathogen
- Gene
- PALe0
- Outcome
- susceptibility of cabbagee0
- Qualifier
- declination of PAL and phenolic contentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“susceptibility of cabbage to X. campestris pv. campestris is a result of declination of PAL and phenolic contents at biochemical level as a manifestation of increase in bacterial population at the cellular level within the host tissues.”
The same questions in other papers
inoculation · Xanthomonas campestris pv. campestris · Brassica oleracea (wild cabbage)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- 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.