Canadian Science Publishing
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High diversity of fungi recovered from the roots of mature tanoak (Lithocarpus densiflorus) in northern California We collected mature tanoak ( Lithocarpus densiflorus (Hook. & Arn.) Rehder) roots from five stands to characterize the relative abundance and taxonomic richness of root-associated fungi. Fungi were identified using polymerase chain reaction (PCR), cloning, and sequencing of internal transcribed spacer (ITS) and 28S rDNA. A total of 382 cloned PCR inserts were successfully sequenced an... ... hiện toàn bộ
Canadian Science Publishing - Tập 84 Số 9 - Trang 1380-1394 - 2006
Species diversity and distribution of biomass above and below ground among ectomycorrhizal fungi in an old-growth Norway spruce forest in south Sweden The structure of an ectomycorrhizal community was assessed on a 100-m2 plot in a 100-year-old, oligotrophic Norway spruce, Picea abies (L.) Karst., forest in southern Sweden. During the 6-year study (1986–1992) sporocarps were identified and their biomass determined. Late in the fall of 1993, we identified mycorrhizas and estimated their abundance. Forty-eight epigeou... ... hiện toàn bộ
Canadian Science Publishing - Tập 75 Số 8 - Trang 1323-1335 - 1997
Community structure of ectomycorrhizal fungi in a Pinus muricata forest: above- and below-ground views We examined the species diversity of an ectomycorrhizal community in natural stands of bishop pine (Pinus muricata D. Don) to determine the correspondence between above- and below-ground views of species composition, spatial frequency, and abundance. We addressed this question by simultaneously sampling fruit bodies and ectomycorrhizae over a 4-year period. By using molecular methods base... ... hiện toàn bộ
Canadian Science Publishing - Tập 74 Số 10 - Trang 1572-1583 - 1996
Structure and biology of a new Tolypocladium attacking bdelloid rotifers Tolypocladium lignicola is described as new. The asymmetrical conidia lodge in the mastax of bdelloid rotifers and germinate to produce assimilative infection hyphae composed of elongate, clavate to turbinate, assimilative cells. Conidial production is prolific in air but suppressed under water.
Canadian Science Publishing - Tập 61 Số 10 - Trang 2566-2569 - 1983
Two new fungal parasites of bdelloid rotifers Haptoglossa humicola (Oomycetes) and Tolypocladium trigonosporum (Hyphomycetes) are described as new endoparasites attacking rotifers, belonging to the genera Adineta and Philodina, in soil. In H. humicola the laterally biflagellate zoospores produce spherical cysts each of which then germinates to form a specialized injection cell. The host is attacked by means of rapid injection of a sp... ... hiện toàn bộ
Canadian Science Publishing - Tập 59 Số 8 - Trang 1449-1455 - 1981
Notes on Tolypocladium and related genera The hyphomycete genus Tolypocladium W. Gams is compared with similar genera possessing swollen phialides and amerosporous conidia borne in slimy heads. Tolypocladium niveum (O. Rostrup) comb. nov. is proposed as the correct name for the type species. Cephalosporium balanoides Dreschler and Verticillium microsporum Jaap are redisposed in Tolypocladium, and two new species of Tolypocladium ... ... hiện toàn bộ
Canadian Science Publishing - Tập 61 Số 5 - Trang 1311-1329 - 1983
Fungal parasites of rotifers: a new Tolypocladium with underwater conidiation A new species, Tolypocladium parasiticum, is described as endoparasitic on the rotifer host Adineta. Unlike most other known Hyphomycetes parasitic on rotifers, conidia are produced underwater. Infection is initiated by conidia lodging in the lower gullet near the mastax of the host. Conidiogenous cells (phialides) arise either directly from the host body or in clusters from short, simple... ... hiện toàn bộ
Canadian Science Publishing - Tập 58 Số 4 - Trang 439-442 - 1980
Ecology of Cladonia lichens. II. Comparative physiological ecology of C. mitis, C. rangiferina, and C. uncialis The net CO2 exchange responses of Cladonia mitis, C. rangiferina, and C. uncialis from the Wisconsin Pine Barrens to irradiance, thallus temperature, and thallus relative water content were statistically compared for fall, spring, and summer. The absolute net photosynthetic rate of C. rangiferina exceeded that of C. uncialis under essentially all conditions and in all... ... hiện toàn bộ
Canadian Science Publishing - Tập 52 Số 2 - Trang 411-422 - 1974
Effects of smelter pollutants on forest leaf litter decomposition near a nickel–copper smelter at Sudbury, Ontario Forest soils and litter in the vicinity of a large nickel–copper smelter at Sudbury, Ont. are known to be contaminated with a variety of heavy metals. In view of this, studies were carried out to determine if forest litter decomposition processes have been affected. The effects of nickel and copper on the decomposition of forest litter were investigated using a variety of techniques in wh... ... hiện toàn bộ
Canadian Science Publishing - Tập 58 Số 15 - Trang 1722-1736 - 1980
The effect of smelting operations on peatlands near Sudbury, Ontario, Canada Accumulations of six metals (Cu, Ni, Mn, Al, Fe, and Ca) were analysed in peat and water for 18 peatlands east northeast of Falconbridge, Ontario, Canada. The peatlands had a minimum of 30 cm accumulation of peat, < 10 μg mL−1 Ca2+ in the water, and were from a variety of physiognomic dominance types. Significant correlations existed between th... ... hiện toàn bộ
Canadian Science Publishing - Tập 64 Số 6 - Trang 1138-1147 - 1986
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