Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2013
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No abstract has been registered
Authors
Ashraful Islam Henrik Lütken Sissel Haugslien Sissel Torre Jorunn Elisabeth Olsen Dag-Ragnar Blystad Søren K. Rasmussen Jihong Liu ClarkeAbstract
No abstract has been registered
Authors
M Ashraful Islam Henrik Lütken Sissel Haugslien Sissel Torre Jorunn Elisabeth Olsen Dag-Ragnar Blystad Søren K. Rasmussen Jihong Liu ClarkeAbstract
No abstract has been registered
Authors
Ashraful Islam Henrik Lütken Sissel Haugslien Hege Særvold Steen Dag-Ragnar Blystad Sissel Torre Jakub Rolcik Søren K. Rasmussen Jorunn Elisabeth Olsen Jihong Liu ClarkeAbstract
No abstract has been registered
Authors
Jihong Liu ClarkeAbstract
No abstract has been registered
Authors
M Ashraful Islam Henrik Lütken Sissel Haugslien Dag-Ragnar Blystad Sissel Torre Jakub Rolcik Søren Rasmussen Jorunn Elisabeth Olsen Jihong Liu ClarkeAbstract
Euphorbia pulcherrima, poinsettia, is a non-food and non-feed vegetatively propagated ornamental plant. Appropriate plant height is one of the most important traits in poinsettia production and is commonly achieved by application of chemical growth retardants. To produce compact poinsettia plants with desirable height and reduce the utilization of growth retardants, the Arabidopsis SHORT INTERNODE (AtSHI) gene controlled by the cauliflower mosaic virus 35S promoter was introduced into poinsettia by Agrobacterium-mediated transformation. Three independent transgenic lines were produced and stable integration of transgene was verified by PCR and Southern blot analysis. Reduced plant height (21–52%) and internode lengths (31–49%) were obtained in the transgenic lines compared to control plants. This correlates positively with the AtSHI transcript levels, with the highest levels in the most dwarfed transgenic line (TL1). The indole-3-acetic acid (IAA) content appeared lower (11–31% reduction) in the transgenic lines compared to the wild type (WT) controls, with the lowest level (31% reduction) in TL1. Total internode numbers, bract numbers and bract area were significantly reduced in all transgenic lines in comparison with the WT controls. Only TL1 showed significantly lower plant diameter, total leaf area and total dry weight, whereas none of the AtSHI expressing lines showed altered timing of flower initiation, cyathia abscission or bract necrosis. This study demonstrated that introduction of the AtSHI gene into poinsettia by genetic engineering can be an effective approach in controlling plant height without negatively affecting flowering time. This can help to reduce or avoid the use of toxic growth retardants of environmental and human health concern. This is the first report that AtSHI gene was overexpressed in poinsettia and transgenic poinsettia plants with compact growth were produced.
Authors
M. Butac V. Bozhkova A. Zhivondov N. Milosevic E. Bellini V. Nencetti J. Blazek E. Balsemin B. Lafarque E. Kaufmane I. Gravite M. Vasiljeva M. Pintea A. Juraveli T. Webster I. Hjalmarsson V. Trajkovski Stein Harald HjeltnesAbstract
No abstract has been registered
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Marte MelandAbstract
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Theo RuissenAbstract
No abstract has been registered
Abstract
No abstract has been registered