Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2023
Sammendrag
Dette er den norske oversettelsen av rapporten "Hotspots of genetic resources for animals, plants, and forests", som ble skrevet og publisert i forbindelse med EUs Horisont 2020-prosjekt GenRes Bridge i 2021. I rapporten deles erfaringer med å identifisere og avgrense verdifulle landskap (genressurs-«hotspots»), karakterisere/dokumentere landskap med stor genetisk variasjon, og diskutere et konsept for integrert bevaring og forvaltning av genetiske ressurser hos husdyr, nytteplanter og skogtrær på landskapsnivå.
Forfattere
Anne Linn HykkerudSammendrag
Det er ikke registrert sammendrag
Forfattere
Anne Linn HykkerudSammendrag
Det er ikke registrert sammendrag
Forfattere
Michel VerheulSammendrag
Det er ikke registrert sammendrag
Forfattere
Svein EilertsenSammendrag
Foreliggende rapport er en utredning av konsekvensene for reindriftsnæringen ved etablering av Hergot energipark, Narvik kommune. Både planområdet og influensområdet nærmest energiparken har «svært stor verdi», mens influensområdet som ligger lengre unna har «stor verdi» for Gielas reinbeitedistrikt. Samlet belastning for Gielas reinbeitedistrikt er svært stor, og ethvert nytt inngrep vil redusere fleksibiliteten til distriktet. Påvirkningen fra energiparken fører til at planområdet og influensområdet blir fra ubetydelig til sterkt forringet avhengig av avstand til energiparken. Dette gir konsekvensgrad fra «-» noe miljøskade til «---/----» alvorlig til mest alvorlige miljøskade på arealenes funksjon for reindrifta. For å sikre framtidig drift i Gielas reinbeitedistrikt på dagens nivå, foreslås avbøtende tiltak.
Forfattere
Martina Paponov Juanita Flåte Jörg Ziegler Cathrine Lillo Ivan PaponovSammendrag
Plants have evolved complex mechanisms to adapt to nutrient-deficient environments, including stimulating lateral root proliferation into local soil patches with high nutrient content in response to heterogeneous nutrient distribution. Despite the widespread occurrence of this phenomenon in soil, the effect of heterogeneous nutrient distribution on the accumulation of secondary compounds in plant biomass and their exudation by roots remains largely unknown. This study aims to fill this critical knowledge gap by investigating how deficiency and unequal distributions of nitrogen (N), phosphorus (P), and iron (Fe) affect plant growth and accumulation of the antimalarial drug artemisinin (AN) in leaves and roots of Artemisia annua, as well as AN exudation by roots. Heterogeneous N and P supplies strongly increased root exudation of AN in half of a split-root system exposed to nutrient deficiency. By contrast, exposure to a homogeneous nitrate and phosphate deficiency did not modulate root exudation of AN. This indicates that a combination of local and systemic signals, reflecting low and high nutritional statuses, respectively, were required to enhance AN exudation. This exudation response was independent of the regulation of root hair formation, which was predominantly modulated by the local signal. In contrast to the heterogeneous supply of N and P, heterogeneous Fe supply did not modulate AN root exudation but increased AN accumulation in locally Fe-deficient roots. No modulation of nutrient supply significantly changed the accumulation of AN in A. annua leaves. The impact of a heterogeneous nitrate supply on growth and phytochemical composition was also investigated in Hypericum perforatum plants. Unlike in A. annue, the uneven N supply did not significantly influence the exudation of secondary compounds in the roots of H. perforatum. However, it did enhance the accumulation of several biologically active compounds, such as hypericin, catechin, and rutin isomers, in the leaves of H. perforatum. We propose that the capacity of plants to induce the accumulation and/or differential exudation of secondary compounds under heterogeneous nutrient supply is both species- and compound-specific. The ability to differentially exude AN may contribute to A. annua’s adaptation to nutrient disturbances and modulate allelopathic and symbiotic interactions in the rhizosphere.
Sammendrag
Modifying natural polymers with silicones gives new possibilities for packaging products and waste management. In this study, the innovative papers produced were altered following the reaction of polysaccharides and organosilicon compounds. The susceptibility of the studied material to biodegradation caused by a brown-rot fungus was assessed. Strength properties by tensile strength and dynamic mechanical analysis and hydrophobic properties by water uptake test and water contact angle analysis were evaluated. Moreover, elemental analysis by ICP method was controlled. The durability against fungi and the hydrophobic properties were increased by the modification. The fungal decay resistance of the silanized paper was reduced by water storage, which allows for managing paper waste. Cellulose-based paper treated with starch-modified methyltrimethoxysilane showed potential as a packaging material due to its reduced water uptake. Possible application areas could be corrugated boxes, cellulose thermoformed products for electronics, and food packaging. However, the water-repellent effect is limited to short-term exposure in humid conditions.
Forfattere
Paulina Paluchowska Zhimin Yin Erik Lysøe Simeon Rossmann Mirella Ludwiczewska Marta Janiszewska May Bente Brurberg Jadwiga ŚliwkaSammendrag
Det er ikke registrert sammendrag
Forfattere
Eva Narten HøbergSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag