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Rhizoctonia spp. causing root and hypocotyl rot in Phaseolus vulgaris in Cuba

(2010) JOURNAL OF PHYTOPATHOLOGY. 158(4). p.236-243
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Abstract
Sixty isolates of Rhizoctonia spp. were obtained from Cuban bean fields during the period 2004-2007. Isolates were characterized with different techniques, including nuclei staining, pectic zymogram, PCR-RFLP analysis of the rDNA-ITS region and sequencing of the rDNA-ITS region. The majority of the isolates were identified as multinucleate Rhizoctonia solani isolates, representing two different anastomosis groups (AGs), AG 2-2 WB and AG 4 HGI; the remaining isolates were binucleate Rhizoctonia isolates and belonged to AG F and AG A. AG 4 HGI isolates were equally distributed in all soil types; AG 2-2 isolates were more frequently isolated from cambisols, whereas AG F isolates were related to calcisols. Pathogenicity experiments in vitro and in the greenhouse, revealed that binucleate isolates only caused root rot, whereas R. solani isolates were able to cause root rot and hypocotyl rot. Furthermore, differences in virulence level were observed between R. solani and binucleate isolates and among different AGs. Isolates of R. solani AG 4 HGI and R. solani AG 2-2 WB were the most aggressive, binucleate isolates of AG F were intermediate aggressive, whereas a binucleate isolate of AG A was weakly aggressive. In contrast with other reports about R. solani in bean, web blight symptoms were never observed during this study.
Keywords
BEAN SEEDLINGS, DIVERSITY, 1ST REPORT, anastomosis group, Ceratobasidium, common bean, Thanatephorus cucumeris, BINUCLEATE RHIZOCTONIA, ANASTOMOSIS GROUPS, WEB BLIGHT, SOLANI AG-4, RDNA, PATHOGENICITY, 1ST-REPORT

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Citation

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MLA
Nerey, Yaquelyn, et al. “Rhizoctonia Spp. Causing Root and Hypocotyl Rot in Phaseolus Vulgaris in Cuba.” JOURNAL OF PHYTOPATHOLOGY, vol. 158, no. 4, 2010, pp. 236–43.
APA
Nerey, Y., Pannecoucque, J., Hernandez, H. P., Diaz, M., Espinosa, R., De Vos, S., … Höfte, M. (2010). Rhizoctonia spp. causing root and hypocotyl rot in Phaseolus vulgaris in Cuba. JOURNAL OF PHYTOPATHOLOGY, 158(4), 236–243.
Chicago author-date
Nerey, Yaquelyn, Joke Pannecoucque, Héctor Pablo Hernandez, Manuel Diaz, Ray Espinosa, Stefanie De Vos, Sarah Van Beneden, Lidcay Herrera, and Monica Höfte. 2010. “Rhizoctonia Spp. Causing Root and Hypocotyl Rot in Phaseolus Vulgaris in Cuba.” JOURNAL OF PHYTOPATHOLOGY 158 (4): 236–43.
Chicago author-date (all authors)
Nerey, Yaquelyn, Joke Pannecoucque, Héctor Pablo Hernandez, Manuel Diaz, Ray Espinosa, Stefanie De Vos, Sarah Van Beneden, Lidcay Herrera, and Monica Höfte. 2010. “Rhizoctonia Spp. Causing Root and Hypocotyl Rot in Phaseolus Vulgaris in Cuba.” JOURNAL OF PHYTOPATHOLOGY 158 (4): 236–243.
Vancouver
1.
Nerey Y, Pannecoucque J, Hernandez HP, Diaz M, Espinosa R, De Vos S, et al. Rhizoctonia spp. causing root and hypocotyl rot in Phaseolus vulgaris in Cuba. JOURNAL OF PHYTOPATHOLOGY. 2010;158(4):236–43.
IEEE
[1]
Y. Nerey et al., “Rhizoctonia spp. causing root and hypocotyl rot in Phaseolus vulgaris in Cuba,” JOURNAL OF PHYTOPATHOLOGY, vol. 158, no. 4, pp. 236–243, 2010.
@article{914534,
  abstract     = {Sixty isolates of Rhizoctonia spp. were obtained from Cuban bean fields during the period 2004-2007. Isolates were characterized with different techniques, including nuclei staining, pectic zymogram, PCR-RFLP analysis of the rDNA-ITS region and sequencing of the rDNA-ITS region. The majority of the isolates were identified as multinucleate Rhizoctonia solani isolates, representing two different anastomosis groups (AGs), AG 2-2 WB and AG 4 HGI; the remaining isolates were binucleate Rhizoctonia isolates and belonged to AG F and AG A. AG 4 HGI isolates were equally distributed in all soil types; AG 2-2 isolates were more frequently isolated from cambisols, whereas AG F isolates were related to calcisols. Pathogenicity experiments in vitro and in the greenhouse, revealed that binucleate isolates only caused root rot, whereas R. solani isolates were able to cause root rot and hypocotyl rot. Furthermore, differences in virulence level were observed between R. solani and binucleate isolates and among different AGs. Isolates of R. solani AG 4 HGI and R. solani AG 2-2 WB were the most aggressive, binucleate isolates of AG F were intermediate aggressive, whereas a binucleate isolate of AG A was weakly aggressive. In contrast with other reports about R. solani in bean, web blight symptoms were never observed during this study.},
  author       = {Nerey, Yaquelyn and Pannecoucque, Joke and Hernandez, Héctor Pablo and Diaz, Manuel and Espinosa, Ray and De Vos, Stefanie and Van Beneden, Sarah and Herrera, Lidcay and Höfte, Monica},
  issn         = {0931-1785},
  journal      = {JOURNAL OF PHYTOPATHOLOGY},
  keywords     = {BEAN SEEDLINGS,DIVERSITY,1ST REPORT,anastomosis group,Ceratobasidium,common bean,Thanatephorus cucumeris,BINUCLEATE RHIZOCTONIA,ANASTOMOSIS GROUPS,WEB BLIGHT,SOLANI AG-4,RDNA,PATHOGENICITY,1ST-REPORT},
  language     = {eng},
  number       = {4},
  pages        = {236--243},
  title        = {Rhizoctonia spp. causing root and hypocotyl rot in Phaseolus vulgaris in Cuba},
  url          = {http://dx.doi.org/10.1111/j.1439-0434.2009.01609.x},
  volume       = {158},
  year         = {2010},
}

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