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Publications

NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.

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1999

Academic – What do low-density inoculations with fungus tell us about fungal pathogenicity and tree resistance?

Paal Krokene, Halvor Solheim

Physiology and genetics of tree-phytophage interactions, Les Colloques de L'INRA. 1999. p. 353-362.

Authors

Paal Krokene Halvor Solheim

Abstract

No abstract has been registered

Academic – Traumatic resin duct formation in Norway spruce (Picea abies (L) Karst.) after wounding or infection with a bark beetle-associated blue-stain fungus, Ceratocystis polonica Siem

Erik Christiansen, V. R. Franceschi, Nina Elisabeth Nagy, ...

Physiology and genetics of tree-phytophage interactions, Les Colloques de L'INRA. 1999. p. 79-89.

Authors

Erik Christiansen V. R. Franceschi Nina Elisabeth Nagy Trygve Krekling A. A. Berryman Paal Krokene Halvor Solheim F. Lieutier W. J. Mattson M. R. Wagner

Abstract

No abstract has been registered

1998

Lecture – Acquired resistance to a pathogenic blue-stain fungus in Norway spruce

Paal Krokene, Erik Christiansen, Halvor Solheim, ...

In: Proceedings of the 7th International Congress of Plant Pathology, Edinburgh. 9-16 August, 1998, 1998.

Authors

Paal Krokene Erik Christiansen Halvor Solheim Alan A. Berryman Vincent R. Franceschi

Abstract

No abstract has been registered

Academic – Assessing the virulence of four bark beetle-associated bluestain fungi using Norway spruce seedlings

Paal Krokene, Halvor Solheim

Plant Pathology, 47 1998. p. 537-540

To document

Authors

Paal Krokene Halvor Solheim

Abstract

No abstract has been registered

Academic – Pathogenicity of four blue-stain fungi associated with aggressive and nonaggressive bark beetles

Paal Krokene, Halvor Solheim

Phytopathology, 88 1998. p. 39-44

To document

Authors

Paal Krokene Halvor Solheim

Abstract

No abstract has been registered

Academic – Growth and virulence of Ceratocystis rufipenni and three blue-stain fungi isolated from the Douglas-fir beetle

Halvor Solheim, Paal Krokene

Canadian Journal of Botany, 76 1998. p. 1763-1769

To document

Authors

Halvor Solheim Paal Krokene

Abstract

No abstract has been registered

Academic – Growth and virulence of mountain pine beetle associated blue-stain fungi, Ophiostoma clavigerum and Ophiostoma montium

Halvor Solheim, Paal Krokene

Canadian Journal of Botany, 76 1998. p. 561-566

To document

Authors

Halvor Solheim Paal Krokene

Abstract

No abstract has been registered

1997

Academic – Growth of four bark-beetle-associated blue-stain fungi in relation to the induced wound response in Norway spruce

Paal Krokene, Halvor Solheim

Canadian Journal of Botany, 75 1997. p. 618-625

To document

Authors

Paal Krokene Halvor Solheim

Abstract

Twenty-five year old Norway spruce trees (Picea abies) were inoculated with four blue-stain fungi. Each tree was inoculated three times with each fungus and three times with sterile agar as a control, giving a total of 15 inoculations per tree. There was little variation in the extent of phloem necrosis produced in response to the different fungi, but five weeks after inoculation necrosis induced by Ceratocystis polonica and Ambrosiella sp. were significantly longer than those for the other fungi. At the same time, C. polonica had induced sapwood desicc-ation twice as deeply into the wood as any other fungus.Hyphal growth of the fungi into phloem and sapwood followed the same pattern as necrosis length and desiccation depth. Five weeks after inoculation C. polonica had penetrated phloem and sapwood further than any other fungus. It grew slower than the other fungi in both tissues the first week after inoculation, but the four following weeks it grew faster than all other fungi.

1996

Academic – Bacteriophage P4 capsid-size determination and its relationship to P2 helper interference

O Nilssen, Carl Gunnar Fossdal, B Johansen, ...

Virology, 219 1996. p. 443-452

To document

Authors

O Nilssen Carl Gunnar Fossdal B Johansen Bjørn H Lindqvist

Abstract

No abstract has been registered

Lecture – Peak and width of response of Ips duplicatus to ratios of pheromone components in east and west palearctic: field trapping and non- linear regression

Fredrik Schlyter, Q.-H. Zhang, Milos Knizek, ...

Proceedings of the 13th Annual Meeting of International Society of Chemical Ecology, Prague, Tchech Republic, 18-22 August, 1996. 154

Authors

Fredrik Schlyter Q.-H. Zhang Milos Knizek Paal Krokene Göran Birgersson

Abstract

No abstract has been registered

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