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EXOSPORIUM":
6 articles found in Index.
JOHNOVÁ M. (2009): Diversity and ecology of selected lignicolous Ascomycetes in the Bohemian Switzerland National Park (Czech Republic). [ascomycetes, lignicolous pyrenomycetes, biodiversity, ecology, endangered species] Czech Mycology 61(1): 81-97 (published: 29th September, 2009)
abstract
Lignicolous pyrenomycetes, their anamorphs and asexually reproducing Ascomycetes were investigated on deciduous and coniferous wood at 10 localities of the Bohemian Switzerland National Park (České Švýcarsko in Czech) during 2003–2005. A total number of 109 species was recorded, 11 species were found both as teleomorph and anamorph. Individual localities were evaluated from the viewpoint of Ascomycetes diversity. Ecological demands, relationship with the type of substratum, and microhabitat preferences were noted and several ecological groups are suggested. Rare and endangered species and factors affecting Ascomycetes diversity are discussed. Several species new to the Czech Republic were recorded, viz. Apiorhynchostoma altipetum, Camarops pugillus, Crassochaeta fusispora, Lophiotrema boreale, and Togniniella acerosa.
HOLEC J. (1994): The ultrastructure of the spore wall and ornamentation in the Xerocomus group of Boletus. [Xerocomus, Boletus, Strobilomyces, ultrastructure, transmission electron microscope, spore wall, ornamentation, taxonomy] Czech Mycology 47(3): 173-184 (published: 17th June, 1994)
abstract
The spore wall of five selected species of the Xerocomus group of Boletus was studied with a transmission electron microscope (TEM). The wall is composed of five layers in all the species studied: a very thin electron-dense outer layer 1 (ectosporium), a moderately electron-dense layer 2 (perisporium), a thick and amorphous electron-dense middle layer 3a (exosporium) that passes gradually into a thinner, granular or granular-fibrillar and moderately electron-dense layer *3b (episporium), and an almost electron-transparent layer 4 (endosporium). A smooth spore surface was found in Boletus pulverulentus and B. chrysenteron. A striate exosporium covered by the ectosporium and the perisporium was found in B. pruinatus, rough warts originating from a disrupted perisporium and ectosporium in B. parasiticus, and very fine warts composed of outgrowths of the ectosporium and part of the perisporium in B. subtomentosus. A species of an other group of the Boletales with conspicuous ornamentation (Strobilomyces strobilaceus) was examined as comparative material. The results of this TEM study are compared with SEM photographs of the spores of Xerocomus published by other authors, and methodologicalproblems with the examination of spore wall ornamentation are discussed. The data revealed confirm the high value of spore wall architecture and ornamentation in the taxonomy of this genus. The separation of B. parasiticus in a new genus Pseudoboletus Sutara is supported by its spore wall ornamentation that is unique in the Boletaceae.
LIZOŇ P. (1993): Fungi described by Carl Kalchbrenner. Česká Mykologie 46(3-4): 315-327 (published: 25th August, 1993)
WEISER J. (1965): Notes on two new species of the genus Tarichium Cohn (Entomophthoraceae). Česká Mykologie 19(4): 201-204 (published: 1965)
abstract
Two new species of the genus Tarichium are described from Czechoslovakia: Tarichium pustulatum on Barathra brassicae and Tarichium gammae on Agrotis segetum and Plusia gamma. These species differ in the surface structures of the resting spore exosporium. The study also discusses the development of Tarichium species, known for lacking conidia and showing only hyphal bodies and azygospores.
SVRČEK M. (1959): Resultate der mykologischen Durchforschung Böhmens für das Jahr 1958, I. Der Winter und Frühlingsaspekt der mittelböhmischen Mykoflora. Česká Mykologie 13(3): 153-159 (published: 20th July, 1959)
ŠEBEK S. (1956): Poznámky k houbovým chorobám pěstovaných léčivých a aromatických rostlin I. Česká Mykologie 10(4): 237-242 (published: 5th December, 1956)
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