Genetics of Glomerella. Iv. Nuclear Phenomena in the Ascus

Lucas, G. B.

doi:10.1002/j.1537-2197.1946.tb12945.x

Cited by 20 publications

(6 citation statements)

References 9 publications

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“…The haploid chromosome number of four observed in the present study agrees with that reported by Lucas (1946) for G. cingulata isolated from Ipomoea sp. and on the conidia in this work.…”

Section: Sexual Formsupporting

confidence: 92%

“…Another explanation is the clustering of chromosomes during cell divisions, as suggested in the meiosis of N. haematococca by Taga et al (1998). The number of four chromosomes was also found in the microscopy study done by Lucas (1946) in Glomerella sp. isolated from Ipomea sp.…”

Section: Asexual Formsupporting

confidence: 54%

“…four chromosomes are in agreement with the number found in the sexual form and in G. cingulata from Ipomea sp. (Lucas, 1946).…”

Section: Asexual Formmentioning

confidence: 99%

“…The genetics of the genus Glomerella were first studied by Edgerton (1912Edgerton ( , 1914. 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).…”

Section: Introductionmentioning

confidence: 99%

“…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. (Lucas, 1946).…”

Section: Introductionmentioning

confidence: 99%

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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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“…The haploid chromosome number of four observed in the present study agrees with that reported by Lucas (1946) for G. cingulata isolated from Ipomoea sp. and on the conidia in this work.…”

Section: Sexual Formsupporting

confidence: 92%

Section: Asexual Formsupporting

confidence: 54%

“…four chromosomes are in agreement with the number found in the sexual form and in G. cingulata from Ipomea sp. (Lucas, 1946).…”

Section: Asexual Formmentioning

confidence: 99%