4 results match your criteria onnia

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Global diversity and phylogeny of Onnia (Hymenochaetaceae) species on gymnosperms.

Mycologia 2017 4;109(1):27-34. Epub 2017 Jan 4.

a Institute of Microbiology, PO Box 61, Beijing Forestry University , Beijing , China.

Onnia includes white rotting polypores with annual basidiocarps, a duplex context, monomitic hyphal structure, hymenial setae, and hyaline, thin-walled, smooth basidiospores. Specimens of Onnia, originating mainly from East Asia, Europe, and North America, were studied using both morphology and phylogenetic analyses. Our concatenated data set was derived from 25 collections and included (i) 25 nuc rDNA internal transcribed spacer region sequences (ITS1-5. Read More

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The role of defoliation and root rot pathogen infection in driving the mode of drought-related physiological decline in Scots pine (Pinus sylvestris L.).

Tree Physiol 2015 Mar 26;35(3):229-42. Epub 2015 Feb 26.

CREAF, Cerdanyola del Vallès, E-08193 Barcelona, Spain Universitat Autònoma Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain.

Drought-related tree die-off episodes have been observed in all vegetated continents. Despite much research effort, however, the multiple interactions between carbon starvation, hydraulic failure and biotic agents in driving tree mortality under field conditions are still not well understood. We analysed the seasonal variability of non-structural carbohydrates (NSCs) in four organs (leaves, branches, trunk and roots), the vulnerability to embolism in roots and branches, native embolism (percentage loss of hydraulic conductivity (PLC)) in branches and the presence of root rot pathogens in defoliated and non-defoliated individuals in a declining Scots pine (Pinus sylvestris L. Read More

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Patterns of colonization and spread in the fungal spruce pathogen Onnia tomentosa.

Mol Ecol 2009 Nov 5;18(21):4422-33. Epub 2009 Oct 5.

Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Stn. Sainte-Foy, Quebec, QC, Canada G1V 4C7.

The basidiomycetous fungus Onnia tomentosa is one of the most widespread root rot pathogens in North America. Although the disease is more severe on spruce and pine trees, this pathogen can infect several coniferous species. To study the population structure of O. Read More

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November 2009

Proceedings towards a natural classification of the worldwide taxa Phellinus s.l. and Inonotus s.l., and phylogenetic relationships of allied genera.

Mycologia 2002 Nov-Dec;94(6):998-1016

Institut für Botanik, Universität Regensburg, Universitätsstrasse 31, D-93040 Regensburg, Germany.

The classification of Phellinus s.l., Inonotus s. Read More

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October 2012
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