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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.

NIBIO's Scientific Publications →

1995

Authors

Guro Brodal Heidi Røsok Bye

Abstract

No abstract has been registered

Authors

Thea Aukrust May Bente Brurberg Ingolf Nes

Abstract

No abstract has been registered

Authors

Malcolm M. Furniss Alan E. Harvey Halvor Solheim

Abstract

Strial pits on the elytra of unflown Ips pini (Say) carry spores like those of the tree-pathogenic blue-stain fungus Ophiostoma ips (Rumbold) Nannfeldt, yeast, and other fungi, as seen by scanning electron microscopy. O. ips ascospores develop on the walls of pupal chambers in the phloem of infested pines and adhere to newly transformed I. pini adults. Inoculation of severed pine stem sections with body parts excised from beetles washed in water or alcohol produced phloem lesions characteristic of the hypersensitive wound reaction to O. ips. A fungus, characteristic of O. pini, was isolated from infected wood beneath lesions caused by inoculation with head, prothorax, elytron, and alimentary canal. Similar infections and reisolations resulted from inoculations of live trees with an elytron-derived culture that caused necrosis of sapwood radially inward from lesions, and tree mortality when lesions encircled the stem.

To document

Authors

Trond Mæhlum

Abstract

No abstract has been registered

Authors

Nina Davidsen

Abstract

No abstract has been registered

Authors

Lita Greve Bjørn Økland

Abstract

No abstract has been registered

Authors

Tord K. Rindal

Abstract

No abstract has been registered

1994

Authors

Halvor Solheim Knut J. Huse Kåre Olav Venn

Abstract

No abstract has been registered

Authors

Inger Martinussen N. Bate Koen Weterings Olavi Junttila David Twell

Abstract

No abstract has been registered

To document

Authors

Inger Martinussen Bate Niel Weterings Koen Olavi Junttila David Twell

Abstract

Artikkelen beskriver analyse av gen regulering i voksende pollenslager av både angiosperme og gymnosperme arter. Resultatene antyder at både taxa-spesifikke og konserverte regulatoriske mekanismer er involvert i å kontrollere uttrykket av gener under pollen spiring og vekst.