Production of oidia by dikaryons of Flammulina velutipes

Kemp, R.F.O.

doi:10.1016/s0007-1536(80)80056-8

Cited by 12 publications

(6 citation statements)

References 7 publications

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“…Also in favour of a site-directed response is the parallel between long-range curvatures during hyphal fusion and those in the homing reactions with arthroconidia (oidia) and basidiospores which have been observed in several Basidiomycotina (Bistis, 1970;Kemp, 1970Kemp, , 1977Kemp, , 1980Fries, 1981Fries, , 1983. In the case of basidiospores, it may be significant that in Leccinum homing is only induced following germination to produce a spherical germ vesicle from which germ tubes would eventually emerge.…”

Section: Discussionmentioning

confidence: 99%

Responses of Living Hyphae Associated with Self and Non-self Fusions in the Basidiomycete Phanerochaete velutina

Ainsworth

Rayner

1986

Microbiology

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Before fusion, hyphae of the basidiomycete Phanerochaete velutina responded similarly to one another when grown on a cellophane membrane, regardless of whether they were genetically the same or different. Long-range (up to 250 pm) curvature (homing) to specific sites in the lateral wall of recipient compartments often occurred in fusions involving main hyphal apices. Induction of tip outgrowth from lateral walls was most evident before short-range, tip-to-tip fusions resulting in H-connections between main hyphae. Spitzenkorper (apical bodies) became aligned with receptive sites before directed growth. A period (about 5-20 min) of expansion of the contact region preceded formation of a fusion pore. Fusions were abundant in the vicinity of septa, but never observed between tips of main hyphae which repelled one another. In fusions involving hyphae from the same thallus or of mating-incompatible homokaryons, the fusion pore usually enlarged until it occupied virtually the entire contact area. Except in the case of clamp-connexions, nuclear interchange was followed by aggregation and division in the pore region before septum formation. Between different heterokaryons, the fusion pore never expanded fully, nuclei were rarely exchanged, and rapid cytoplasmic lysis and vacuolation occurred. Lysis also occurred sooner or later between sexually compatible homokaryons; only in a few cases was dolipore dissolution and nuclear migration observed.

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Section: Discussionmentioning

confidence: 99%

Responses of Living Hyphae Associated with Self and Non-self Fusions in the Basidiomycete Phanerochaete velutina

Ainsworth

Rayner

1986

Microbiology

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“…a Totals for FrL parent, FrH parent, and neither parent: 15 of 29 (52%), 7 of 29 (24%), and 7 of 29 (24%), respectively. Although the fit to the expectation for nonlinkage is imperfect (X2 = 8.8, P -0.01), the genes responsible for fruiting temperature do not appear to be closely linked to the A or B locus.…”

Section: Discussionmentioning

confidence: 99%

Fruiting at High Temperature and Its Genetic Control in the Basidiomycete Flammulina velutipes

Fultz

1988

Appl Environ Microbiol

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Of 10 geographic strains of Flammulina velutipes, 4 were found capable of fruiting at 22°C (FrH) rather than at the typical 15°C (FrL). Crosses made between FrH and FrL monokaryons were never observed to fruit at 22°C. However, some hybrids did fruit at the intermediate temperature of 18°C when grown on appropriate substrates, indicating incomplete dominance of the low-temperature requirement. Analysis of progeny of five FrH x FrL crosses indicated that a minimum of two genes appears to control the requirement for fruiting at

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“…Both collections are listed above as exemplars of F. elastica. Aschan (1952), Brodie (1936), Ingold (1980), and Kemp (1980), dikaryon mycelia of Flammulina taxa produce monokaryon branches which often abstrict into arthroconidia. These arthroconidia can be diluted in various ways and germinate readily.…”

Section: Collections and Cultures Usedmentioning

confidence: 99%

Mating systems in the Xerulaceae (Agaricales, Basidiomy cotina): Flammulina

et al. 1999

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Recently published taxonomic circumscriptions for taxa within Flammulina encouraged mating studies to confirm or reject these names or taxa. Three categories of pairing experiments were performed: 1) self-crosses of monokaryon isolates of exemplars of various putative taxa; 2) inter-exemplar pairings among exemplar strains; and 3) pairings between exemplars and 87 unidentified strains which were grouped on this basis. Mating experiments could distinguish F. velutipes from other taxa, but not among infraspecific taxa of F. velutipes (vars. velutipes, lactea, and lupinicolaJ and monokaryons of all these taxa were partially compatible with those of F. ononidis. Likewise, isolates of F. rossica and F. elastica were partially compatible with one another but incompatible with those of other taxa. All other taxa (F. mexicana, F. stratosa, F. populicola, F. fennae) appeared to be genetically isolated. Low levels of interspecific hybridization between F. velutipes and F. populicola, and between F. velutipes and F. rossicalelastica were also noted.

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Production of oidia by dikaryons of Flammulina velutipes

Cited by 12 publications

References 7 publications

Responses of Living Hyphae Associated with Self and Non-self Fusions in the Basidiomycete Phanerochaete velutina

Responses of Living Hyphae Associated with Self and Non-self Fusions in the Basidiomycete Phanerochaete velutina

Fruiting at High Temperature and Its Genetic Control in the Basidiomycete Flammulina velutipes

Mating systems in the Xerulaceae (Agaricales, Basidiomy cotina): Flammulina

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