Wie gross wird Heterobasidion annosum s.l.? – Eine Literaturübersicht | Clonal size of Heterobasidion annosum s.l.

2005 ◽  
Vol 156 (10) ◽  
pp. 395-398 ◽  
Author(s):  
Valentin Queloz ◽  
Ottmar Holdenrieder
Keyword(s):  
Literature Review ◽  
Life Span ◽  
Heterobasidion Annosum ◽  
Potential Factors ◽  
Intersterility Groups

We present a literature review on the size of H. annosum s.l.clones. As a rule, the largest diameter of a genet is smaller than 30 m, only in single cases up to 55 m were measured. The maximum age of an individual genet is estimated to around 200 years. The differences between the various intersterility groups and species within H. annosum s.l. are small. Potential factors which may delimit the mycelial life span are discussed.

Relative abundance and potential dispersal range of intersterility groups of Heterobasidion annosum in pure and mixed forests

2001 ◽  
Vol 79 (9) ◽  
pp. 1057-1065 ◽  
Author(s):  
Paolo Gonthier ◽  
Matteo Garbelotto ◽  
Giovanna Cristina Varese ◽  
Giovanni Nicolotti
Keyword(s):  
Gene Flow ◽  
Host Specificity ◽  
Mixed Forest ◽  
Abies Alba ◽  
Heterobasidion Annosum ◽  
Silver Fir ◽  
Airborne Spores ◽  
Forest Pathogen ◽  
Limited Gene Flow ◽  
Intersterility Groups

In Europe the forest pathogen Heterobasidion annosum (Fr.) Bref. includes the S, P, and F intersterility groups (ISGs), each displaying a preferential specialization on Norway spruce (Picea abies (L.) Karst.), pine, and silver fir (Abies alba Mill.), respectively. In this paper, we present data about (i) H. annosum ISGs frequency in different forest types, (ii) the degree of host specificity of each ISG, (iii) the significance of the potential movement of airborne spores among forests, and (iv) the occurrence of S–P chimeras in the northwestern Alps. Using woody spore traps, we sampled natural pure spruce and fir forests and a mixed spruce-fir forest. The ISG of 582 spores was determined by ISG-diagnostic taxon-specific competitive priming (TSCP) polymerase chain reaction (PCR) combined with PCR-mediated detection of ISG-specific introns in the ML5–ML6 DNA region of the mitochondrial large ribosomal RNA (mt LrRNA). All three ISGs were found, and a strong correlation was observed between the F ISG and fir and the S ISG and spruce. In the mixed forest, no clear relationship between tree host species and host-specialized ISGs was found. In spite of a relative dominance of fir in the overstory of the mixed stand, the fir-associated F ISG represented only 11% of the total number of spores collected. This discrepancy was explained by the recent establishment of firs at this site. No S–P nuclear-mitochondrial chimeras were found. This suggests limited gene flow between these ISGs.Key words: Heterobasidion annosum, host specificity, ISGs, gene flow, PCR, Alps.

scholarly journals Factors for Effective Repair and Maintenance Services in the Housing Industry: A systematic literature review

2020 ◽  
Vol 5 (15) ◽  
pp. 17-28
Author(s):  
Farhan Md Dahlan ◽  
Asniza Hamimi Abdul Tharim ◽  
Ashrof Zainuddin ◽  
Mohd Hasrol Haffiz Aliasak
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Publishing House ◽  
Relevant Information ◽  
Journal Articles ◽  
High Rise ◽  
Building Management ◽  
International Publishing ◽  
Potential Factors ◽  
Open Access Article

Most of the residents in high-rise housing do not realise the importance of proper building management until the physical buildings and shared facilities have deteriorated. Accordingly, this paper identified the factors for effective repair and maintenance services in a housing setting by utilising a systematic literature review method. Relevant information was analysed through content analysis techniques across various peer-reviewed journal articles. The results yielded the potential factors for effective repair and maintenance services in high-rise housing. This study thus contributes to the field by deriving valuable reference for property management companies tasked with managing such houses in consideration of the factors necessary for effective repair and maintenance towards building quality and sustainability.Keywords: high-rise housing; house; effective repair and maintenance serviceseISSN 2514-751X © 2020 The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.DOI: https://doi.org/10.21834/aje-bs.v5i15.358  

scholarly journals COVID-19 associated delirium: pathogenetic mechanisms of induction and clinical features

2021 ◽  
Vol 12 (1) ◽  
pp. 33-37
Author(s):  
L. V. Tsoy
Keyword(s):  
Older Adults ◽  
Literature Review ◽  
Clinical Features ◽  
Systematic Literature Review ◽  
Clinical Studies ◽  
Present Review ◽  
Google Scholar ◽  
Pathogenetic Mechanisms ◽  
Potential Factors

The present review describes pathogenetic mechanisms and clinical features of COVID-19 associated delirium. Potential factors leading to the named condition and pathophysiological chains were described elaborately, including older adults’ manifestation analysis based on the latest clinical studies. A systematic literature review was conducted in the following databases: PubMed, Scopus, e-library, Google Scholar and others.

Intersterility groups of Heterobasidion annosum in some spruce and pine stands in Byelorussia, Lithuania and Estonia

1992 ◽  
Vol 22 (6-7) ◽  
pp. 384-391 ◽  
Author(s):  
K. Korhonen ◽  
I. Bobko ◽  
S. Hanso ◽  
T. Piri ◽  
A. Vasiliauskas
Keyword(s):  
Heterobasidion Annosum ◽  
Pine Stands ◽  
Intersterility Groups

Population structure of Heterobasidion annosum from North America and Europe

1993 ◽  
Vol 71 (8) ◽  
pp. 1064-1071 ◽  
Author(s):  
William J. Otrosina ◽  
Thomas E. Chase ◽  
Fields W. Cobb Jr. ◽  
Kari Korhonen
Keyword(s):  
Population Structure ◽  
North America ◽  
North American ◽  
Forest Tree ◽  
Heterobasidion Annosum ◽  
Evolutionary Relationships ◽  
The North ◽  
Isozyme Loci ◽  
Intersterility Groups ◽  
European Populations

Isolates of Heterobasidion annosum (Fr.) Bref. representing North American S and P and European S, P, and F intersterility groups were subjected to isozyme analysis. European S, P, and F groups had more variability than the North American S and P groups in expected hterozygosity, number of alleles per locus, and percent polymorphic loci. In contrast with the North American S and P groups, the European intersterility groups could not be distinguished from each other on the basis of individual isozyme loci, although significant differences in allele frequencies exist between European S and P groups. This suggests that evolution proceeded at different rates in the intersterility groups, or intersterility barriers appeared later in the European populations relative to the North American populations of H. annosum. Changes in climate and host species associations during the Tertiary may have been a major factor in evolution of H. annosum intersterility groups. Key words: allozymes, forest tree hosts, playnological events, evolutionary relationships, Hymenomycetes, root disease.

Combined fatty acid and sterol profiles of Heterobasidion annosum intersterility groups S, P and F

1995 ◽  
Vol 99 (9) ◽  
pp. 1025-1033 ◽  
Author(s):  
M.M. Müller ◽  
R. Kantola ◽  
K. Korhonen ◽  
J. Uotila
Keyword(s):  
Fatty Acid ◽  
Heterobasidion Annosum ◽  
Intersterility Groups

Differentiation of intersterility groups and geographic provenances among isolates of Heterobasidion annosum detected by random amplified polymorphic DNA assays

1993 ◽  
Vol 71 (4) ◽  
pp. 565-569 ◽  
Author(s):  
Matteo Garbelotto ◽  
Thomas D. Bruns ◽  
Fields W. Cobb ◽  
William J. Otrosina
Keyword(s):  
North American ◽  
Random Amplified Polymorphic Dna ◽  
Heterobasidion Annosum ◽  
Isozyme Electrophoresis ◽  
Length Polymorphisms ◽  
Dna Assays ◽  
Herbarium Collection ◽  
Polymerase Chain ◽  
Successful Amplification ◽  
Intersterility Groups

Random amplified polymorphic DNAs were correlated with the intersterility group and the geographic provenance of 36 isolates of Heterobasidion annosum from North America and Europe and of one herbarium collection of basidiocarps from California. This technique is very precise and yields higher resolution than previous studies implementing techniques such as isozyme electrophoresis and restriction fragment length polymorphisms. Random amplified polymorphic DNAs revealed differentiation among the following geographic groups and intersterility groups: western North American P, eastern North American P, European P, North American S, Scandinavian S, Italian S, and Italian F. This is the first report on differentiation between eastern and western North American P isolates as well as between northern and southern European S isolates. Successful amplification of one dry basidiocarp suggests that random amplified polymorphic DNAs may be used to improve epidemiological and population studies of this pathogen. Key words: species complex, genetic variability, strain typing, forest pathology, polymerase chain reaction.

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