Home About Browse Search
Svenska


Microscopic studies of cavity formation by soft rot fungi Allescheria terrestris Apinis, Margarinomyces luteo-viridis v. Beyma and Phialophora richardsiae (Nannf.) Conant

Lundström, Hans (1972). Microscopic studies of cavity formation by soft rot fungi Allescheria terrestris Apinis, Margarinomyces luteo-viridis v. Beyma and Phialophora richardsiae (Nannf.) Conant. Technical Report. Stockholm: Predecessors to SLU > Swedish Institute for Forest Research, Sveriges lantbruksuniversitet. Studia forestalia Suecica ; 98
[Report]

[img]
Preview
PDF
1MB

Abstract

The ability of three soft rot fungi to form cavities in birch sapwood (Betula sp.), was investigated, viz. Allescheria terrestris Apinis (strain Apinis and strain H63-1), Margarinomyces luteo-viridis v. Beyma (strain Beyma and strain M74-IV) as ivell as Phialophora richardsiae (Nannf.) Conant (strain BB40-V). The primary aim of the studies was to elucidate how rapidly the fungal hyphae form cavities after infection of the wood. The role of nitrogen in cavity formation was studied by comparing the time taken for cavity formation in untreated wood and in wood impregnated with various nitrogen compounds. Phialophora richardsiae reacted most strongly to the addition of nitrogen compounds to the wood, forming cavities after three days, as compared with six days in untreated wood. Allescheria terrestris and Margarinomyces luteo-viridis formed cavities two days after infection of the wood, regardless of whether nitrogen was employed or not. However, in nitrogen-impregnated wood, cavity formation began at a more uniform rate and to a greater extent than in untreated wood. The "T-shaped branching" form of attack frequently occurred, in various forms, in that the bore-holes were not always symmetrically related to the long edge of the cavity. The ability of Allescheria terrestris and Margarinomyces luteo-viridis to form cavities in 25 different plants with lignified cells was studied. Cavity formation differed widely between softwood where there was little and hardwood where cavities were very numerous aslthough with some small variations.

Authors/Creators:Lundström, Hans
Title:Microscopic studies of cavity formation by soft rot fungi Allescheria terrestris Apinis, Margarinomyces luteo-viridis v. Beyma and Phialophora richardsiae (Nannf.) Conant
Series/Journal:Studia forestalia Suecica (0039-3150)
Year of publishing :1972
Number:98
Number of Pages:18
Place of Publication:Stockholm
Publisher:Skogshögskolan
ISBN for printed version:91-38-00282-5
ISSN:0039-3150
Language:English
Publication Type:Report
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Plant and forest protection
Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Forestry
Keywords:cavity formation, soft rot fungi, Allescheria terrestris Apinis, Margarinomyces luteo-viridis v. Beyma, Phialophora richardsiae (Nannf.) Conant
URN:NBN:urn:nbn:se:slu:epsilon-e-3145
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3145
ID Code:5738
Department:Predecessors to SLU > Swedish Institute for Forest Research
Deposited By: Skogsbiblioteket Umeå
Deposited On:22 Feb 2011 00:00
Metadata Last Modified:21 Dec 2015 17:18

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits