Abstract
ABSTRACT White rust/white blister disease of rapeseed‐mustard caused by Albugo candida is one of the significant diseases, which adversely affect the production and productivity of the crop. For managing the disease in a very effective way, host plant resistance can be considered as the most suitable, cost effective and ecofriendly method. The host resistance may breakdown due to emergence of new pathotypes/races, therefore there is an emergent need to identify host differentials for the differentiation of A. candida isolates occurring at different geographical mustard growing region in India. Further there is also a need to identify highly virulent and highly aggressive isolates so that could be exploited during screening of resistance sources against white rust pathogen in Brassica breeding materials to get wide source of resistance. Keeping above in view the present investigation was taken, in which 44 diverse A. candida isolates belonging to 06 different Brassica spp. collected from 17 states of India were cross inoculated on 32 different Brassica genotypes/cultivars. Based on disease reactions on the host, 24 groups of differential hosts were identified and 44 A. candida isolates were also classified in 12 Groups based on the infectivity on 32 Brassica genotypes/cultivars. Further, on the basis of virulence, 44 A. candida isolates were categorised as highly virulent (09), virulent (12), moderately virulent (16) and least virulent (07) and on the basis of and aggressiveness isolates were categorised as highly aggressive (08), aggressive (06), moderately aggressive (14) and least aggressive (16). These highly virulent and highly aggressive A. candida isolates could be exploited for the screening of resistance sources against white rust disease in Brassica breeding materials.
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Claims 11
Claim · model-written summary
Disease reactions identified 24 groups of differential hosts among the Brassica genotypes tested.
BrassicaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“Based on disease reactions on the host, 24 groups of differential hosts were identified”
Claim · model-written summary
The 44 A. candida isolates were classified into 12 groups based on infectivity on 32 Brassica genotypes or cultivars.
- Interactor
- A. candida
Albugo candidae0pathogen - Outcome
- classified in 12 Groups based on the infectivitye1
- Value
- 12 Groupse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“44 A. candida isolates were also classified in 12 Groups based on the infectivity on 32 Brassica genotypes/cultivars”
Claim · model-written summary
Of the 44 A. candida isolates, 09 were categorised as highly virulent.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- highly virulente1
- Value
- 09e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“44 A. candida isolates were categorised as highly virulent (09)”
Claim · model-written summary
Of the 44 A. candida isolates, 12 were categorised as virulent.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- virulente1
- Value
- 12e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“virulent (12), moderately virulent (16)”
Claim · model-written summary
Of the 44 A. candida isolates, 16 were categorised as moderately virulent.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- moderately virulente1
- Value
- 16e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“moderately virulent (16)”
Claim · model-written summary
Of the 44 A. candida isolates, 07 were categorised as least virulent.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- least virulente1
- Value
- 07e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“least virulent (07)”
Claim · model-written summary
Of the 44 A. candida isolates, 08 were categorised as highly aggressive.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- highly aggressivee1
- Value
- 08e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“isolates were categorised as highly aggressive (08)”
Claim · model-written summary
Of the 44 A. candida isolates, 06 were categorised as aggressive.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- aggressivee1
- Value
- 06e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“aggressive (06), moderately aggressive (14)”
Claim · model-written summary
Of the 44 A. candida isolates, 14 were categorised as moderately aggressive.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- moderately aggressivee1
- Value
- 14e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“moderately aggressive (14)”
Claim · model-written summary
Of the 44 A. candida isolates, 16 were categorised as least aggressive.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- least aggressivee1
- Value
- 16e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“44 diverse A. candida isolates belonging to 06 different Brassica spp.”
e1“least aggressive (16)”
Claim · model-written summary
The highly virulent and highly aggressive A. candida isolates could be exploited to screen resistance sources in Brassica breeding materials.
- Interactor
- A. candidaAlbugo candidae0pathogen
- Outcome
- screening of resistance sourcese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These highly virulent and highly aggressive A. candida isolates could be exploited for the screening of resistance sources against white rust disease in Brassica breeding materials”