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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.

2011

Sammendrag

Dickeya solani, en ny, aggressiv stengelråteorganisme er på fremmarsj i Europa. Bakteriepopulasjoner i potet er i forandring og nye, høyvirulente skadegjørere dukker opp. Dickeya solani holdes nå ansvarlig for majoriteten av stengelråtetilfellene i Nord Europa. Bakterien sprer seg raskt, men har hittil ikke blitt påvist i Norge. Risikoen for introduksjon øker med hver gang det settes importert materiale her i landet.

Til dokument

Sammendrag

In Norway spruce, the temperature during zygotic embryogenesis appears to adjust an adaptive epigenetic memory in the progeny that may regulate bud phenology and cold acclimation. Conditions colder than normal advance the timing whilst temperatures above normal delay the onset of these processes and altered performance is long lasting in progeny with identical genetic background. As a step toward unraveling the molecular mechanism behind an epigenetic memory, transcriptional analysis was performed on seedlings from seeds of six full-sib families produced at different embryogenesis temperature?cold (CE) vs warm (WE) under long and short day conditions. We prepared two suppressive subtractedcDNAlibraries, forward and reverse, representing genes predominantly expressed in plants from seeds obtained after CE and WE embryogenesis following short day treatment (inducing bud set). Sequencing and annotation revealed considerable differences in the transcriptome of WE versus CE originated plants. By using qRT-PCR we studied the expression patterns of 32 selected candidate genes chosen from subtractive cDNA libraries analysis and nine siRNA pathways genes by a direct candidate approach. Eight genes, two transposons related genes, three with no match to Databases sequences and three genes from siRNA pathways (PaDCL1 and 2, PaSGS3) showed differential expression in progeny from CE andWEcorrelated with the family phenotypic differences. These findingsmaycontribute to our understanding of the epigenetic mechanisms underlying adaptive changes acquired during embryogenesis.

Sammendrag

Topics: •Current and emerging light technologies •Research done on artificial light (AL) and IPM •What do we know about direct and indirect effects of AL on greenhouse pests and natural enemies  •Approaches for utilization of AL in IPM •Knowledge gaps and future research