Hopp til hovedinnholdet

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.

2025

To document

Abstract

Biobanking (also known as germplasm banking) of genetic material is a well-established concept for preserving plant genetic diversity and also contributes to food security, conservation and restoration. Macroalgae currently represent a very small percentage of the strains in publicly accessible European germplasm banks, despite the increasing recognition of their contribution to achieving several of the United Nations Sustainable Development Goals. There is no strategic coordination of existing macroalgal strains, which could have severe ecological and economic implications as species and their genetic diversity disappear rapidly due to local and global environmental stressors. In this opinion paper, we stress the importance of a coordinated European effort for preserving macroalgal genetic diversity and suggest the development of a three-pillared system to safeguard European macroalgal genetic material consisting of (1) a European Board of Macroalgal Genetic Resources (EBMGR) to provide supervision, support and coordination, (2) a network of germplasm banks consisting of currently existing and newly established infrastructures and (3) an interoperable databank integrating existing databanks. While it will be the task of the EBMGR to identify and coordinate priorities, we offer initial recommendations for preserving macroalgal genetic material, discuss the risks of inaction, and highlight the challenges that must be overcome. Highlights • A coordinated European effort is crucial to preserve macroalgal genetic diversity, addressing rapid species and genetic loss due to environmental stressors. • The initiative should include a European Board of Macroalgal Genetic Resources for oversight, a network of existing and new germplasm banks and an interoperable databank integrating current resources. • The effort supports the United Nations Sustainable Development Goals.

To document

Abstract

Butyric acid and its derivatives are widely applied in aquaculture as an alternative to antibiotics, which are beneficial for the growth and health of aquatic animals. However, these products have some disadvantages including poor stability, a bitter taste, and low bioavailability. In this study, a novel butyric acid, namely pentabutyryl glucose ester (PGE), was synthesized, and the effects of PGE on the growth, liver and intestinal health, and gut microbiota of zebrafish were evaluated. We found that the supplementation of PGE at a level of 0.05% promoted the growth performance of zebrafish, decreased the level of serum LPS, ALT, and AST, and improved liver health. The expression levels of pro-inflammatory factors (NF-κBp65 and IL-6) were notably downregulated, while those of anti-inflammatory factors (TGF-β and IL-10) were upregulated, in the intestines of zebrafish fed 0.05% PGE compared with the control group. Additionally, inclusion of PGE in the diet of zebrafish increased the relative abundance of probiotic bacteria such as Bacillus and Lentilactobacillus. Overall, this study demonstrated that PGE is beneficial for the growth, liver and intestinal health, and the gut microbiota of zebrafish, providing a novel pathway to improve the application of butyric acid as a feed additive in aquaculture.

To document

Abstract

No abstract has been registered

Abstract

Warmer temperatures due to global warming and use of climate-enhancing fbre covers makes it important to gain specifc knowledge of the temperature response in potato cultivars grown under Midnight Sun in northern Scandinavia. The temperature response was therefore studied in climate-controlled growth chambers under constant temperatures from 9 to 21 °C under a natural 24-h photoperiod in a greenhouse in Tromsø (69.7°N, 18.9°E), Norway, for the potato cultivars Gullauge (medium late) and Mandel (late). There was a strong response in both cultivars to temperature, with reduced developmental time from emergence and leaf formation to visible fower buds at increasing temperature intervals. Emergence was earlier for Gullauge than for Mandel, followed by no diference in development time between cultivars for subsequent developmental stages. Shoot dry matter weight per plant was highest at 12 °C and 15 °C for both cultivars, although with higher shoot biomass at harvest in Mandel than in Gullauge. Tuber yields and tuber dry-matter percentages were higher for Gullauge than for Mandel. Fresh weight yields and dry matter percentage for both cultivars were highest at 15 °C. Optimum temperature for above-ground vegetative development-rate was estimated to be 24.0 °C and 22.6 °C, for Gullauge and Mandel, respectively. In contrast, the respective temperature optima for developing tuber dry matter content were 16.6 °C and 15.6 °C. Lower temperature optima for below-ground developme below ground with optimumsa of around nt make potato a suitable crop for temperate and boreal climates with cooler autumn temperatures. Diferent temperature response for above- and below-ground development may be used for decision about when to remove climate-enhancing covers in response to the temperature during the season. This diference may also be important for developing temperature-based growth models for potato cultivars from emergence to tuber yields.