Glomevella cingulata (Stonem.) spauld. et v. schrenk. F. SP. phaseoli N.F., fase ascógena do agente causal da antracnose do feijoeiro

Kimati, Hiroshi; Galli, Ferdinando

doi:10.1590/s0071-12761970000100031

Cited by 22 publications

(19 citation statements)

References 12 publications

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“…These values are in agreement with data described in the literature for the species C. truncatum derived from different hosts (Damm et al, 2009). The size of the ascopores of the strains G43-2 (21.84 x 7.69 µm) and G8-1 (22.59 x 9.3 µm) is in agreement with the data described previously in the literature for the species G. cingulata f. spp phaseoli (Castro et al, 2006;Souza et al, 2007); however, these values are higher than those reported by Kimati and Galli (1970) and Rodrigues-Guerra et al (2005).…”

Section: Discussionsupporting

confidence: 92%

Variability of Colletotrichum spp in common bean

Mota¹,

Barcelos²,

Dias³

et al. 2016

Genet. Mol. Res.

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The Colletotrichum genus presents large genetic variability, as demonstrated by the occurrence of several pathogenic races and phenotypic traits. The objective of this study was to characterize 22 strains of C. lindemuthianum and Colletotrichum spp recovered from anthracnose lesions and bean scab, and to verify the relationship between species of the Colletotrichum genus, which inhabit anthracnose and scab lesions. Colony morphology, conidium size, the presence of septa, germination, sporulation, and mycelium growth rates, were analyzed in addition to the presence of mating-type genes, IRAP markers, and pathogenicity. Strains of Colletotrichum spp presented wide variation for all evaluated traits, indicating the presence of different species. Pathogenicity tests verified that the severity of the disease caused by strains of Colletotrichum spp must be evaluated 17 days after inoculation. Molecular analysis showed that only the C. lindemuthianum strains were grouped by the IRAP markers. For the physiological traits, we observed that C. lindemuthianum mycelium growth is slower than that of Colletotrichum spp strains. The information generated in this study confirms variability in the evaluated species of Colletotrichum and may direct future basic and applied studies aiming to control these diseases in common bean.

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Section: Discussionsupporting

confidence: 92%

Variability of Colletotrichum spp in common bean

Mota¹,

Barcelos²,

Dias³

et al. 2016

Genet. Mol. Res.

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“…The underlying mechanism which produces such high levels of variability in this fungus is unclear. Although under laboratory conditions sexual reproduction has been observed for C. lindemuthianum (Kimati & Galli, 1970; Bryson, 1990), there is no direct evidence that the fungus undergoes sexual reproduction in nature. Occurrence of recombination via anastomosis and the parasexual cycle has also never been thoroughly investigated.…”

Section: Introductionmentioning

confidence: 99%

Variation in genotype, pathotype and anastomosis groups of Colletotrichum lindemuthianum isolates from Mexico

Rodríguez-Guerra

Ramírez-Rueda²,

Vega³

et al. 2003

Plant Pathology

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Patterns of variation were determined in anastomosis, pathotype and genotype of Colletotrichum lindemuthianum samples collected from individual plants of common bean cultivars from four locations in the Mexican highlands. In Chihuahua, 22 polymorphic AFLP bands in isolates taken from a single plant identified five distinct genotypes. In Michoacán, nine genotypes were identified based on a total of only six polymorphic bands. Combined cluster analysis of all isolates from individual plants grouped them geographically. In Chihuahua, in isolates from 16 individual plants, only nine genotypes were identified and all samples were found to belong to the same anastomosis group. However, analysis of selected isolates revealed two new pathotypes not reported previously from Chihuahua (races 449 and 467). In contrast, in Michoacán all 13 isolates from individual plants were found to have distinct genotypes, and in Mexico State only two pairs of isolates among 20 samples had identical genotypes. Although no pathotype variation was determined, five anastomosis groups were identified in Michoacán and three in Mexico State. These results suggest that patterns of variation in genotype and anastomosis groups are complex in the different locations sampled, and that no strong relationship exists between genotype, pathotype or anastomosis group.

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“…Cytogenetic, morphogenetic and morphological studies have also been conducted with G. cingulata (Hüttig, 1935;Lucas, 1946;Wheeler et al, 1948;McGahen & Wheeler, 1951;Uecker, 1994), but isolates from common bean were not included until recently (Roca et al, 2000). The sexual form of C. lindemuthianum was not reported until 1970 when the formation of fertile perithecia through crosses in culture medium was observed (Kimati & Galli, 1970). Although genetic studies have been carried out with G. cingulata strains isolated from bean plants (Batista & Chaves, 1982;Bryson, 1990;Mendes-Costa, 1996, O'Sullivan et al, 1998, the only work with conventional cytogenetics in this genera was done in 1946 with strains isolated from Ipomea sp.…”

Section: Introductionmentioning

confidence: 99%

Cytogenetics of Colletotrichum lindemuthianum (Glomerella cingulata f. sp. phaseoli)

Davide

Mendes-Costa

2003

Fitopatol. bras.

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Cytogenetic and morphological studies were conducted with Colletotrichum lindemuthianum (Glomerella cingulata f. sp. phaseoli), the pathogen responsible for anthracnose of common bean (Phaseolus vulgaris). In this species, there is some evidence of genomic variation but it is unknown whether the process occurs in a manner similar to other fungal genetic models. Six isolates from bean plants were used and sexual reproduction was observed in vitro. Meiosis and ascospore formation were investigated by cytogenetical approaches and light microscopy. To study the nucleus and chromosome numbers, a mixture of carmine and orcein propionic dyes was used. Nucleus divisions as well as ascospore maturation were asynchronous. Meiosis was observed in three isolates. In the asexual form, chromosomal polymorphism in conidia was also observed microscopically and the mitosis process was described.

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Glomevella cingulata (Stonem.) spauld. et v. schrenk. F. SP. phaseoli N.F., fase ascógena do agente causal da antracnose do feijoeiro

Cited by 22 publications

References 12 publications

Variability of Colletotrichum spp in common bean

Variability of Colletotrichum spp in common bean

Variation in genotype, pathotype and anastomosis groups of Colletotrichum lindemuthianum isolates from Mexico

Cytogenetics of Colletotrichum lindemuthianum (Glomerella cingulata f. sp. phaseoli)

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