PowerPointpresentasjon

1
Effect of temperature drop on shoot elongation
and hormone balance

• Temperature drop reduces shoot elongation, which
  are the underlying mechanisms?
• Master work
• Study how gibberellin, auxin and brassinosteroid
  interact in control of shoot elongation by
  temperature drop
• Do temperature drop in light and darkness affect
  the hormone balance differently?
• Methods
• growth studies, mutants, hormone studies,
  molecular work

Contact person Prof. Jorunn E. Olsen
2
Effect of temperature alternations on shoot
elongation

• Environmentally and health friendly control of
  shoot elongation - energy saving in greenhouses
• Master work
• When in the diurnal cycle do plants exhibit
  highest lowest sensitivity to temperature
  alternations?
• Which are the mechanisms underlying the
  responses?
• Methods
• growth experiments (transducers), wild type and
  mutants, hormone studies, molecular work possible

Contact person Prof. Jorunn E. Olsen
Arabidopsis thaliana
Pea (Pisum sativum)
3
Effect of light quality on hormonal control of
shoot elongation in Poinsettia

• LED light different light qualities
• Master work
• how does light quality affect shoot elongation
  and hormonal control?
• Methods
• growth experiments, hormone physiology studies

Contact persons Prof. Jorunn E. Olsen, Assoc.
Prof. Sissel Torre
4
Control of shoot elongation in Poinsettia by
changing the expression of genes in gibberellin
metabolism

• Control of shoot elongation essential in
  Poinsettia culture. Can harmful growth retardants
  be replaced?
• Master work
• Change expression of genes in gibberellin
  metabolism
• Methods
• Molecular biology/biotechnology

From labels of growth retardants
Contact person Prof. Jorunn E. Olsen,
cooperation with Dr. Jihong Clarke, Bioforsk
5
Climatic adaptation in trees Effects of
light-temperature ineraction on light receptor
localisation/ action

• Daylength control of growth cessation/dormancy
  cycling appears to be modified by temperature.
• Master work
• Study whether a temperature modification of
  daylength response is linked to modification of
  phytochrome localisation in cells or phytochrome
  action
• Methods
• Microscopy of Norway spruce material with
  phytochromes with fluorescent label (GFP).
• Possible also with studies of expression of
  climatically regulated genes

Contact person Prof. Jorunn E. Olsen