Abstract
Abstract Plasmodiophora brassicae is a serious threat to Brassica crops worldwide, resulting in substantial economic losses for growers. Biocontrol with chitinolytic bacteria producing chitinase is gaining attention as a natural alternative to chemicals. This approach is favored due to the essential role chitinases play in protecting against chitin-containing pathogens. Given that chitin is a major component in the resting spores of P. brassicae and plays a crucial role during pathogenesis, it is probable that Paenibacillus chitinolyticus , producing a high level of chitinase, could suppress P. brassicae by targeting chitin in a critical stage of this pathogen’s life cycle. Our research aimed to evaluate the effect of various applications of P. chitinolyticus on clubroot suppression in two economically important Brassica species: Chinese cabbage and rapeseed. The effectiveness of the cell-free supernatant (CFS) of an endemic strain of P. chitinolyticus from the Czech Republic at five different time points was studied in the greenhouse by measuring the disease severity index. Early application of P. chitinolyticus decreased the disease index significantly within both plant species resulting in increased shoot dry weight. In conclusion, the CFS of P.chitinolyticus has significant antagonistic activity against clubroot in Chinese cabbage and rapeseed in the early developmental stages of clubroot occurrence and holds the potential as a biofertilizer as well as bioprotectant agent in clubroot management of P. brassicae .
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Claims 4
Claim · model-written summary
Early Paenibacillus application decreased disease index in Chinese cabbage.
- Taxon
- Chinese cabbage
Brassica rapa subsp. pekinensise1 - Treatment
- Early application of P. chitinolyticuse0
- Interactor
- P. brassicaee2pathogen
- Second interactor
- P. chitinolyticusPaenibacillus chitinolyticuse0biocontrol_agent
- Outcome
- disease indexe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early application of P. chitinolyticus decreased the disease index significantly within both plant species resulting in increased shoot dry weight.”
e1“Chinese cabbage and rapeseed. The effectiveness”
e2“clubroot management of P. brassicae”
Claim · model-written summary
Early Paenibacillus application decreased disease index in rapeseed.
- Taxon
- rapeseede1
- Treatment
- Early application of P. chitinolyticuse0
- Interactor
- P. brassicaee2pathogen
- Second interactor
- P. chitinolyticusPaenibacillus chitinolyticuse0biocontrol_agent
- Outcome
- disease indexe0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“Early application of P. chitinolyticus decreased the disease index significantly within both plant species resulting in increased shoot dry weight.”
e1“Chinese cabbage and rapeseed. The effectiveness”
e2“clubroot management of P. brassicae”
Claim · model-written summary
Early Paenibacillus application increased shoot dry weight in Chinese cabbage.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise1
- Treatment
- Early application of P. chitinolyticuse0
- Interactor
- P. brassicaee2pathogen
- Second interactor
- P. chitinolyticusPaenibacillus chitinolyticuse0biocontrol_agent
- Outcome
- shoot dry weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early application of P. chitinolyticus decreased the disease index significantly within both plant species resulting in increased shoot dry weight.”
e1“Chinese cabbage and rapeseed. The effectiveness”
e2“clubroot management of P. brassicae”
Claim · model-written summary
Early Paenibacillus application increased shoot dry weight in rapeseed.
- Taxon
- rapeseede1
- Treatment
- Early application of P. chitinolyticuse0
- Interactor
- P. brassicaee2pathogen
- Second interactor
- P. chitinolyticusPaenibacillus chitinolyticuse0biocontrol_agent
- Outcome
- shoot dry weighte0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Early application of P. chitinolyticus decreased the disease index significantly within both plant species resulting in increased shoot dry weight.”
e1“Chinese cabbage and rapeseed. The effectiveness”
e2“clubroot management of P. brassicae”
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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.