Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2004
Sammendrag
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Forfattere
Atle WibeSammendrag
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Forfattere
H Schmidt A. Adler Arne Holst-Jensen Sonja Klemsdal C.M. Kullnig-Gradinger Antonio Logrieco C.P. Kibecek Robert L. Mach Rudi F. Vogel Helga I. Nirenberg Ulf Thrane Mona Torp Tapani Yli-Mattila Ludwig NiessenSammendrag
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Forfattere
Peder Gjerdrum Olav HøibøSammendrag
Det er ikke registrert sammendrag
Forfattere
Alhaji Jeng Trond Knapp Haraldsen Nils Vagstad Arne Grønlund Steinar TveitnesSammendrag
Nitrogen, fertilizer, meal
Forfattere
Rolf Arnt Olsen Grete RasmussenSammendrag
Det er ikke registrert sammendrag
Sammendrag
The anatomical defense responses in stems of Norway spruce (Picea abies) clones of different resistance to pathogenic fungi were characterized over time and distance from small mechanical wounds or wounds inoculated with the root rot fungus Heterobasidion annosum. Common responses for both treatments included division of ray parenchyma and other cells in the cambial zone, accumulation of phenolic inclusions in ray parenchyma cells, activation of phloem parenchyma (PP) cells, and formation of traumatic resin ducts (TDs) in the xylem. TD formation occurred synchronously from a tangential layer of cells, or symplasmic domain, within the zone of xylem mother cells. TD induction is triggered by a signal, which propagates a developmental wave in the axial direction at about 2.5cm per day. TDs are formed at least 30cm above single inoculations within 16–36days after inoculation. The size and number of TDs is attenuated further away from the inoculation site, indicating a dose-dependent activity leading to TD development. Compared to sterile wounding, fungal inoculation gave rise to more and larger TDs in all clones, and multiple rows of TDs in weak clones. Fungal inoculation also induced the formation of more new PP cells, increasing the number of PP cells in the phloem in the year of inoculation up to 100%. TD and PP cell formation was greater in susceptible compared to resistant clones and after fungal versus sterile inoculation. Potential mechanisms responsible for this variable response are discussed.
Forfattere
Live Semb Vestgarden Petter Nilsen Gunnar AbrahamsenSammendrag
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Forfattere
Halvor B. Gjærum Kåre Arnstein Lye Halvor SolheimSammendrag
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Sammendrag
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