• 제목/요약/키워드: bacterial spot of pepper

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Near-Isogenic Lines for Genes Conferring Hypersensitive Resistance to Bacterial Spot in Chili Pepper

  • Kim, Byung-Soo;Kim, Young-Chun;Shin, Kwang-Sik;Kim, Jeong-Hoon
    • The Plant Pathology Journal
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    • 제23권3호
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    • pp.155-160
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    • 2007
  • In order to develop chili pepper bacterial spot resistant cultivars and near-isogenic lines (NILs) to prompt the molecular mapping of the resistance gene, we have run backcross breeding program since 1994. Two resistance genes against Xanthomonas axonopodis pv. vesicatoria Bs2 from Fla. XVR 3-25 and Bs3 from our breeding line 25-11-3-2, were introduced into a land race, Chilseongcho (abbreviated to Chilseong hereafter) with good fruit guality. We report here the testing of $BC_4F_3\;to\;BC_4F_5$. We found that $BC_4F_5$ lines of the crosses were homozygous with respect to the respective genes of introduction. The lines, in which Bs2 gene was introduced, were hypersensitively resistant to both race 1 and race 3 of X. axonopodis pv. vesicatoria, whereas, those in which Bs3 was introduced were resistant to race 1.

고추 세균성점무늬병 저항성 유전자원과 그 주요 특성 (Characterization of Sources of Resistance to Bacterial Spot in Capsicum Peppers)

  • 변시은;;제갈윤혁;;;모황성;유희주;장길수;황지은;전수경;이수헌;김병수
    • 원예과학기술지
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    • 제34권5호
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    • pp.779-789
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    • 2016
  • 국내외에서 보고된 저항성 유전자원과 새로 찾은 자원을 포함한 고추 유전자원 총 33점에 세균성점무늬병원균(X. euvesicatoria)을 접종하여 과민반응형 저항성과 일반 저항성을 검정하고, 선발한 자원에 대하여 원예적 특성을 조사하였다. 국내에 보고된 4종의 race(1, 3, 7, 8)에 대한 과민반응형 저항성을 판별한 결과, Bs2 유전자를 보유한 KC00939와 Chilbok No.2는 예상대로 4종의 race에 과민형 반응을 나타내었다. Bs3 유전자를 보유한 Chilbok No.3는 예상대로 race 1과 7에 과민형 반응을 보였다. KC00939는 CMV와 BBWV의 복합 감염에 강한 저항성을 보이고 색소함량이 매우 높아 고색도 복합저항성 육종 소재로서의 그 가치가 높았다. 이와 더불어 KC01327, KC01617, KC01015, KC01760, KC01779, KC01137, KC01328, KC01006, KC00127(PI369994), KC01704, KC00995, KC00131(PI369998) 및 KC01777이 높은 수준의 일반 저항성을 나타내었다. 이들 중 KC01617, KC01760, KC01779, KC01137, KC01704, KC01777은 이번 연구에서 세균성점무늬병 저항성으로 찾은 자원이다. 이들 세균성점무늬병 저항성 유전자원의 CMV와 BBWV의 복합 감염에 대한 저항성, 과실특성, 과실의 신미, 감미 및 색소함량(ASTA)을 분석한 결과는 세균성점무늬병 저항성 육종에 유용하게 활용될 것으로 기대된다

역병과 세균성점무늬병에 복합저항성인 핵유전형 웅성불임성 고추 계통 육성을 위한 교배의 $F_3-F_4$세대 선발 (Selection in $F_3$ and $F_4$ Generations of a Cross for Breeding Genic Male Sterile Pepper Lines Resistant to Phytophthora Blight and Bacterial Spot)

  • 박동근;김병수
    • Current Research on Agriculture and Life Sciences
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    • 제28권
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    • pp.17-23
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    • 2010
  • 역병(Phytophthora capsici)과 세균성점무늬병(Xanthomonas euvesicatoria)에 복합저항성인 핵유전형 웅성불임계(Genic male sterile line, GMS)를 육성하기 위하여 역병 저항성 핵유전형 웅성불임계에 역병-세균성점무늬병 복합저항성 계통을 교배하여 작성한 조합의 $F_3$$F_4$ 세대에 대하여 두 가지 병에 대한 저항성 선발을 실시하였다. 역병 저항성은 잘 알려져 있는 KC294(CM334)와 KC263(AC2258)에서 도입하고, 세균성점무늬병 저항성은 KC47(PI24467)에서 도입되었다. 역병에 고도의 저항성을 지닌 GMS 계통이 얻어졌으며, 이들은 세균성점무늬병에도 양적으로 저항성을 나타낼 것으로 기대된다.

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Assessment of Root-Associated Paenibacillus polymyxa Groups on Growth Promotion and Induced Systemic Resistance in Pepper

  • Phi, Quyet-Tien;Park, Yu-Mi;Seul, Keyung-Jo;Ryu, Choong-Min;Park, Seung-Hwan;Kim, Jong-Guk;Ghim, Sa-Youl
    • Journal of Microbiology and Biotechnology
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    • 제20권12호
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    • pp.1605-1613
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    • 2010
  • Twenty-nine P. polymyxa strains isolated from rhizospheres of various crops were clustered into five genotypic groups on the basis of BOX-PCR analysis. The characteristics of several plant growth-promoting factors among the isolates revealed the distinct attributes in each allocated group. Under gnotobiotic conditions, inoculation of pepper roots with P. polymyxa isolates significantly increased the biomass in 17 of total 29 treated plants with untreated plants. Experiments on induced systemic resistance (ISR) against bacterial spot pathogen Xanthomonas axonopodis pv. vesicatoria in pepper by P. polymyxa strains were conducted and only one isolate (KNUC265) was selected. Further studies into ISR mediation by the KNUC265 strain against the soft-rot pathogen Erwinia carotovora subsp. carotovora in tobacco demonstrated that the tobacco seedlings exposed to either bacterial volatiles or diffusible metabolites exhibited a reduction in disease severity. In conclusion, ISR and plant growth promotion triggered by P. polymyxa isolates were systemically investigated on pepper for the first time. The P. polymyxa KNUC265 strain, which elicited both ISR and plant growth promotion, could be potentially used in improving the yield of pepper and possibly of other crops.

고추 재래품종에 더뎅이병(반점세균병) 저항성을 도입하기 위한 여교잡 이후 세대에서의 선발 (Selection in the Generations after Backcrosses of the Crosses for Incorporation of Resistance to Bacterial Spot into Korean Local Cultivars of Pepper)

  • 김병수;김점순;임양숙
    • 한국식물병리학회지
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    • 제12권4호
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    • pp.437-444
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    • 1996
  • 경북지역 재래종에 더뎅이병 저항성을 도입하기 위하여 작성한 칼미초$\times$PI271322, 수비초$\times$PI271322 조합의 BC\ulcornerF\ulcorner와 BC\ulcornerF\ulcorner세대로부터 BC\ulcornerF\ulcorner와 BC\ulcornerF\ulcorner세대까지 선발과 자식을 실시하였다. 이 결과 각 재래종의 원예적 특성에 PI271322에 들어있는 과민반응형 저항성 유전자 Bs\ulcorner와 비과민형의 일반저항성을 함께 가지는 계통이 육성되었다.

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고추 더뎅이병 저항성 계통의 세포질웅성불임 관련 핵내유전자형 검정 (Testing Bacterial Spot Resistant Lines of Capsicum Pepper for Nuclear Genotype Interacting with Male Sterile Cytoplasm)

  • 김병수;황희숙
    • 한국식물병리학회지
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    • 제14권3호
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    • pp.212-216
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    • 1998
  • Capsicum pepper selections fro PI163192, PI241670, PI244670, PI271322, PI308787, PI322719, and PI369994 were confirmed to be non-hypersensitively resistant to race 3 of Xanthomonas campestris pv. vesicatoria. A resistant cultivar,‘SR’, was shown to be hypersensitive. Four Koran local cultivars, a cytoplasmic male sterile line (A-line) and its maintainer (B-line) were highly susceptible. The resistant selections and cultivars were crossed with a male sterile A-line (Smsms) and fertility of their F1 hybrids was examined by observing he pollen production, testing pollen germination, and quantifying the amount of pollen produced per anther to identify the genotype interacting with the male sterile cytoplasm. The seven resistant PI selections turned out to be restorers (N(S)MsMs) and‘SR’to be a maintainer (Nmsms).

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