Effect of temperature drop on shoot elongation and hormone balance Temperature drop reduces shoot...
-
Upload
millicent-stanley -
Category
Documents
-
view
216 -
download
0
Transcript of Effect of temperature drop on shoot elongation and hormone balance Temperature drop reduces shoot...
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
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
Arabidopsis thaliana Pea (Pisum sativum)
Contact person : Prof. Jorunn E. Olsen
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
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 ofgrowth retardants
Contact person : Prof. Jorunn E. Olsen, cooperation with Dr. Jihong Clarke, Bioforsk
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