Formation of hyphal loops in xylotrophic coprinoid mushrooms
Fecha
2006Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
nodoi-noplumx
|
Resumen
Recent molecular analysis split the traditional genus Coprinus (Homobasidiomycetes)
into four distinct genera: Coprinus, Coprinopsis, Coprinellus and Parasola.
Coprinoid mushrooms are usually saprotrophic on soil and/or dung of herbivores.
However, more than 60 species are able to grow on wood and straw.
Xylotrophic mushrooms are forcing a relatively short supply of nitrogen
and phosphorous ...
[++]
Recent molecular analysis split the traditional genus Coprinus (Homobasidiomycetes)
into four distinct genera: Coprinus, Coprinopsis, Coprinellus and Parasola.
Coprinoid mushrooms are usually saprotrophic on soil and/or dung of herbivores.
However, more than 60 species are able to grow on wood and straw.
Xylotrophic mushrooms are forcing a relatively short supply of nitrogen
and phosphorous nutrients. Coprinus comatus has been reported to produce
specialized structures (“spiny balls”) to penetrate nematodes for nutrient supply
(Luo et al. 2004, Mycologia 96, 1218-1224). Nematode traps of other
fungi involve adhesive hyphal network and knobs, hyphal loops and snares.
Toxin production may support in nematode immobilisation.
Nematode-trapping species belong mainly to the mitosporic Deute romy -
ce tes, but some are also found amongst Zygomycetes and Basidiomycetes.
We have observed hyphal loops in several wood-decaying basidiomycetes,
such as Daedalea quercina, Ganoderma lucidum, Lentinula edodes, Piptoporus
betulinus and Pleurotus ostreatus. Furthermore, regular and irregular hyphal
loops and/or rings were observed in the four clades of Coprinoid species (Coprinus
comatus, Coprinellus angulatus, C. bisporus, C. curtus, C. domesticus, C.
disseminatus, C. ellissi, C. micaceus, C. xanthothrix, Coprinopsis cinerea, C. gonophylla,
C. radians, C. strossmayeri, C. scobicola, and P. plicatilis). Hyphal loops
were particularly often formed in Coprinellus species. Such structures were
rare in Coprinopsis atramentaria, C. cothurnata, C. romagnesiana, C. psychromorbida
and Coprinus patouillardii (an unclassified isolate).
It is not clear yet why Basidiomycetes fungi have these structures. Is it
that many species have nematode trapping abilities by formation of such
structures?
Thanks to the DAAD, NATO and the Deutsche Bundesstiftung Umwelt
for financial support. [--]
Materias
Hyphal loops,
Xylotrophic cophinoid mushrooms
Editor
Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Publicado en
Antonio G. Pisabarro and Lucía Ramírez (eds.): VI Meeting on Genetics and Cellular Biology of Basidiomycetes (GCBB-VI). Pamplona: Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006.
Notas
Resumen del poster presentado al VI Meeting on Genetics and Cellular Biology of Basidiomycetes (GCBB-VI), organizado por y celebrado en la Universidad Pública de Navarra el 3-6 de junio de 2005.
Entidades Financiadoras
Thanks to the DAAD, NATO and the Deutsche Bundesstiftung Umwelt
for financial support.