Light Microscopic Observations of Karyology during Conidiogenesis in Scopulariopsis koningii

Hammill, Terrence M.

doi:10.2307/3758666

Cited by 4 publications

(8 citation statements)

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“…8.4f-h) very similar to that shown in Fig. 6 and 7 of Hammill (1977) and Fig. 18.1E of Kendrick and Chang (1971) for Scopulariopsis spp.…”

Section: Observations-allsupporting

confidence: 84%

“…A binucleate conidium atop an anucleate phialide was figured, and Tinline suggested that perhaps both daughter nuclei sometimes enter a conidial initial. Hammill (1972) suggested that perhaps nuclear division occurred in the neck of M. anisopliae phialides.…”

Section: Observations-allmentioning

confidence: 99%

“…Briosia cubispora and G. candidum are thallic hyphomycetes (Kendrick, 1971), with the former considered enterothallic and the latter holothallic (Cole, 1975), G. apiculatum produces acropetal chains of holoblastic conidia (Cole, 1973) from a swollen ampulla, the Monilia state of N. sitophila has both arthric and blastic characteristics (Haslmii et al, 1972b), and Spilocaea pomi and Scopulariopsis spp. are blastic-annellidic (Hammill, 1971(Hammill, , 1973.…”

Section: Observations-allmentioning

confidence: 99%

“…Research being reported here was initiated in an attempt to provide karyological data relevant to the above areas and to add to the existing published data of Backus and Keitt (1940), Cole (1975), Hammill (1977), Hashmi, Kendrick, and Morgan-Jones (1972a) , Hashmi, Morgan-Jones, and Kendrick (1972b) , Huang and Patrick (1972), Kendrick and Chang (1971), Tinline (1971), Zachariah and Fitz-James (1967), and Zachariah andMetitiri (1970, 1971). The fungus selected for this study was Gliomastix murorum (Corda) Hughes, a species characterized by the production of colorless, long, narrow phialides (ca.…”

mentioning

confidence: 99%

“…MATERIALS AND METHODs-Gliomastix murorum (Hammill culture number 32-68) was isolated from forest soil in Clarke County, Georgia (Hammill, 1970). For this study, V-8 Juice agar (18% V-8 Juice; 0.2% CaC0 3 ; 2% Difco agar) was used as the culture medium.…”

mentioning

confidence: 99%

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Karyology During Conidiogenesis in Gliomastix Murorum: Light Microscopy

Hammill¹

1977

American J of Botany

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Light microscopic observations of nuclear behavior (karyology) during conidiogenesis in the long, narrow phialides of Gliomastix murorum (Corda) Hughes are presented and discussed. Nuclei were observed mostly in a submedian position in phialides. The onset of mitosis was signalled by an increase in the size of nuclei and by the appearance of numerous chromatinic granules (chromosomes?). The number of chromatinic granules appeared to decrease, while the chromatin was arranged in the characteristic “double track” associated with somatic nuclear divisions in hyphomycetes. Transverse separation of the “double track” arrangement produced two daughter chromatinic masses which stained intensely, were small, and moved apart. Separation of daughter chromatinic masses (nuclei) appeared to be largely a function of migration of distal daughter nuclei several micrometers toward phialidic apices; the submedian position of proximal daughter nuclei was maintained. Upon movement of migrating distal daughter nuclei into conidial initials, conidia were delimited septally. Conidial nuclei remained condensed, while daughter nuclei remaining in phialides decondensed (i.e., enlarged and stained less intensely), thereby entering interphase. Repeated, single nuclear divisions and migrations were correlated with repeated conidial development. Karyological events described herein were compared with other published studies of both phialidic and non‐phialidic species, and a “phialidic pattern” of nuclear behavior was suggested as a possibility. But, apparently a non‐phialidic pattern cannot yet be suggested.

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“…8.4f-h) very similar to that shown in Fig. 6 and 7 of Hammill (1977) and Fig. 18.1E of Kendrick and Chang (1971) for Scopulariopsis spp.…”

Section: Observations-allsupporting

confidence: 84%

Section: Observations-allmentioning

confidence: 99%