Identification and pathogenicity ofRhizoctonia solani and binucleateRhizoctonia anastomosis groups isolated from forage legumes in Erzurum, Turkey

Eken, Cafer; Demirci, E.

doi:10.1007/bf02979769

Cited by 17 publications

(12 citation statements)

References 8 publications

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“…Although our pathogenicity tests revealed that isolates of AG10 were only slightly aggressive at 20°C, a higher aggressiveness could be observed at 28°C. In previous research, AG10 has been isolated from cereals, legumes and canola, but up until now this AG was only considered to be a weak pathogen of crucifers (Eken and Demirci 2003;Khangura et al 1999;MacNish et al 1995;Ogoshi et al 1990). Two isolates from greenhouse S042, which were moderately pathogenic on lettuce, could not be identified based on zymogram or PCR-RFLP.…”

Section: Discussionmentioning

confidence: 98%

Characterisation of fungal pathogens causing basal rot of lettuce in Belgian greenhouses

et al. 2008

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Basal rot is a common disease in lettuce greenhouses. A 3-year study on the diversity of pathogens associated with basal rot in Belgium was carried out. A total of 150 isolates were collected originating from 56 greenhouses. Four pathogens appeared to be involved. Rhizoctonia solani was found to be the causal agent at 23 locations, Sclerotinia spp. at 14, Botrytis cinerea at 17 and Pythium spp. at seven. The isolates of R. solani were further characterised to anastomosis groups and subgroups using morphological characteristics, pectic zymogram and PCR-RFLP. Five anastomosis groups could be distinguished: AG1-1B, AG4 HGI, AG10, AG2-1, AG2-1 Nt and AG3, with isolates of AG4 HGI and AG1-1B being the most prevalent and the most aggressive. Sclerotinia sclerotiorum was found at 13 locations, while S. minor was found at only one location. Based on ITS-sequencing Pythium isolates were assigned to three different species. At 20A degrees C, isolates of all pathogens were able to cause lesions on detached lettuce leaves, except isolates of R. solani AG3 and AG2-1 Nt. A correlation could be found between the occurrence of the pathogens and the growing season. Botrytis cinerea was the most common pathogen in winter, whereas R. solani was most frequently isolated in summer. Sclerotinia spp. and Pythium spp. were isolated in spring, summer and autumn. The information obtained in this study will be most useful in the development of an alternative control strategy for causal agents of basal rot

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Section: Discussionmentioning

confidence: 98%

Characterisation of fungal pathogens causing basal rot of lettuce in Belgian greenhouses

et al. 2008

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“…Some AG isolates of binucleate Rhizoctonia spp. have been reported as virulent, avirulent or less virulent cultivated plants (Sanders et al 1978;Burpee et al 1980;Hurd & Grisham 1983;Sumner 1985;Eken & Demirci 2003, 2004). In addition, other studies have shown that binucleate Rhizoctonia spp.…”

Section: Discussionmentioning

confidence: 99%

Anastomosis grouping of Rhizoctonia solani and binucleate Rhizoctonia spp. isolated from pepper in Erzincan, Turkey

Tunçer¹,

Eken²

2013

Plant Prot. Sci.

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Tuncer S., Eken C. (2013) [2007][2008]. The most prevalent multinucleate anastomosis groups (AG) were AG-4 (85.2%), followed by AG-2 type 1 (7.4%), AG-6 (5.0%), and AG-3 (2.5%). The population of binucleate Rhizoctonia spp. comprised AG-A (82.4%), AG-K (11.8%), and AG-G (5.9%). Rhizoctonia solani AG-3 and AG-6, as well as binucleate Rhizoctonia spp. AG-G and AG-K on pepper (c. annuum) were firstly determined in this study. During both in vitro and in vivo pathogenicity experiments differences in virulence level between R. solani and binucleate Rhizoctonia spp. isolates were observed. Isolates of R. solani AG-2 type 1 and AG-4 were the most virulent, binucleate Rhizoctonia spp. isolates of AG-A were less virulent, whereas binucleate Rhizoctonia spp. isolates of AG-G and AG-K were non-pathogenic.

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“…In the United States, AG-2-2 has been reported to be pathogenic to lucerne roots and stems under artificial inoculation conditions (Liu and Sinclair 1991). Other AG groups, AG-3, AG-4, AG-5, AG-10, AG-I are pathogenic to lucerne roots (Vincelli and Herr 1992;Eken and Demirci 2003), while AG-1 has been reported as causing web blight on lucerne leaves (Vincelli and Herr 1992).…”

Section: Discussionmentioning

confidence: 99%

Rhizoctonia crown and root rot of the pasture legume, sulla (Hedysarum coronarium)

Ryley

Lloyd²,

Johnson³

et al. 2004

Austral. Plant Pathol.

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Abstract. Rhizoctonia solani AG-2-2 was isolated from wilting and dying plants of sulla (Hedysarum coronarium), which is currently being assessed in eastern and southern Australia for its potential as a pasture and forage legume. Infected plants in the field had extensive rotting of the taproot, lateral roots and crown. Koch's postulates were fulfilled using three inoculation methods. The disease may pose a considerable threat to the potential use of H. coronarium in the dryland, grazing farming systems of Australia, with resistance offering the most viable option for minimising its impact.A P 0 3 0 9 3 R h i z o c t o n i a c r o w n a n d r o o t r o t o f s u l l a M . J . Ry l e y e t a l .

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Identification and pathogenicity ofRhizoctonia solani and binucleateRhizoctonia anastomosis groups isolated from forage legumes in Erzurum, Turkey

Cited by 17 publications

References 8 publications

Characterisation of fungal pathogens causing basal rot of lettuce in Belgian greenhouses

Characterisation of fungal pathogens causing basal rot of lettuce in Belgian greenhouses

Anastomosis grouping of Rhizoctonia solani and binucleate Rhizoctonia spp. isolated from pepper in Erzincan, Turkey

Rhizoctonia crown and root rot of the pasture legume, sulla (Hedysarum coronarium)

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