Blar i NIBIO Brage på forfatter "Olsen, Jorunn Elisabeth"
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Epitype-inducing temperatures drive DNA methylation changes during somatic embryogenesis in the long-lived gymnosperm Norway spruce
Viejo, Marcos; Tengs, Torstein; Yakovlev, Igor; Cross, Hugh; Krokene, Paal; Olsen, Jorunn Elisabeth; Fossdal, Carl Gunnar (Peer reviewed; Journal article, 2023-07-20)An epigenetic memory of the temperature sum experienced during embryogenesis is part of the climatic adaptation strategy of the long-lived gymnosperm Norway spruce. This memory has a lasting effect on the timing of bud ... -
Interactive effects of light quality during day extension and temperature on bud set, bud burst and paftl2, pacol1-2 and pasoc1 expression in norway spruce (Picea abies (l.) karst.)
Chiang, Camilo; Viejo, Marcos; Aas, Oda Toresdatter; Hobrak, Katharina T.; Strømme, Christian Bianchi; Fløistad, Inger; Olsen, Jorunn Elisabeth (Peer reviewed; Journal article, 2021-03-13)Light and temperature are crucial factors for the annual growth rhythm of tree seedlings of the boreal and temperate zone. Dormant, vegetative winter buds are formed under short days (SD) and altered light quality. In the ... -
Long term effects of ionising radiation in the Chernobyl Exclusion zone on DNA integrity and chemical defence systems of Scots pine (Pinus sylvestris)
Nybakken, Line; Lee, YeonKyeong; Brede, Dag Anders; Mageroy, Melissa; Lind, Ole Christian; Salbu, Brit; Kashparov, Valerii; Olsen, Jorunn Elisabeth (Peer reviewed; Journal article, 2023-12-15)The Chernobyl Nuclear Power Plant (ChNPP) accident in 1986 resulted in extremely high levels of acute ionising radiation, that killed or damaged Scots pine (Pinus sylvestris) trees in the surrounding areas. Dead trees were ... -
Subalpine fir (abies laciocarpa) and Norway spruce (picea abies) seedlings show different growth responses to blue light
Navidad, Hazel Aynaga; Fløistad, Inger; Olsen, Jorunn Elisabeth; Torre, Sissel (Peer reviewed; Journal article, 2020-05-15)Blue light (BL) affects different growth parameters, but information about the physiological effects of BL on conifer seedlings is limited. In northern areas, conifer seedlings are commonly produced in heated nursery ... -
The epigenetic memory of temperature during embryogenesis modifies the expression of bud burst-related genes in Norway spruce epitypes
Carneros, Elena; Yakovlev, Igor; Viejo, Marcos; Olsen, Jorunn Elisabeth; Fossdal, Carl Gunnar (Journal article; Peer reviewed, 2017)Main conclusion Epigenetic memory affects the timing of bud burst phenology and the expression of bud burstrelated genes in genetically identical Norway spruce epitypes in a manner usually associated with ecotypes. In ...