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Taubert, Jasmin, 2008. Temperature requirement for germination of conidiospores and growth of mycelia of Heterobasidion annosum s.s. and Heterobasidion parviporum. SLU, Southern Swedish Forest Research Centre, Alnarp. Alnarp: SLU, Southern Swedish Forest Research Centre

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Abstract

Different temperature requirements of the two species Heterobasidion annosum (Fr.) Bref. (P group) and H. parviporum Niemelä & Korhonen (S group) should explain why the distribution areas are different in Scandinavia despite of a wide range of distribution of their host species Picea abies and Pinus sylvestris up to 68°N. Temperature ranges of P and S were observed. Germination percent, length of the germination tubes of the conidiospores and growth rate of the mycelia were measured for 6 individual strains of the S and P group, respectively. When sampled, mycelial strains of the S group showed a significantly faster growth rate at 22°C compared to the strains of the P group. Germination percent and length of the germination tubes of the conidiospores were insignificant at all temperatures. In conclusion, growth rate of the S group increased with temperature until 27°C and increase of the growth rate of the P group stagnated after 22°C. The S group had a wider temperature range than the P group.

Main title:Temperature requirement for germination of conidiospores and growth of mycelia of Heterobasidion annosum s.s. and Heterobasidion parviporum
Authors:Taubert, Jasmin
Supervisor:Rönnberg, Jonas
Examiner:UNSPECIFIED
Series:Master thesis / SLU, 5045
Volume/Sequential designation:123
Year of Publication:2008
Level and depth descriptor:Other
Student's programme affiliation:SY001 Forest Science - Master's Programme 300 HEC
Department:(S) > Southern Swedish Forest Research Centre
Keywords:conidiospores, germination, growth, heterobasidion annosum, H. parviporum, temperature
URN:NBN:urn:nbn:se:slu:epsilon-s-7494
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-s-7494
Subjects:SLU > (S) > Southern Swedish Forest Research Centre
Forestry - General aspects
Language:English
Deposited On:04 Oct 2017 11:29
Metadata Last Modified:04 Oct 2017 11:29

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