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 |
| Supervising 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 |
| Subject. Use of subject categories until 2023-04-30.: | ?? 5045 ?? Forestry - General aspects |
| Language: | English |
| Deposited On: | 04 Oct 2017 11:29 |
| Metadata Last Modified: | 04 Oct 2017 11:29 |
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