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.
2025
Forfattere
Bjørn Arild Hatteland Arne Stensvand Gunnhild Jaastad Torbjørn Haukås Anna Birgitte Milford Nina Trandem Lene Sigsgaard Runa GidskeSammendrag
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Sammendrag
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Forfattere
Heidi Udnes AamotSammendrag
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Forfattere
Jingwei Li Min-Rui Wang Zhibo Hamborg Dag-Ragnar Blystad Gayle Volk Jean Carlos Bettoni QiaoChun WangSammendrag
Rapid population growth poses a major challenge to global food security. Promoting sustainable agricultural production is necessary to ensure the global food security. Horticultural plants are a high-valued part in agricultural production. Virus and viroid diseases have long been a key factor limiting the horticultural production. Cultivation and distribution of pathogen-free plants is currently the most efficient practice for managing virus and viroid diseases, and their spread in the landscape. Cryotherapy-based methods are recently developed novel biotechnologies for the efficient production of pathogen-free plants. This review outlines updated information on the development and advances in cryotherapy-based methods for efficiently eradicating viruses and viroids in horticultural plants. Mechanisms underlining cryotherapy-based methods for improved pathogen eradication are discussed, and suggestions for further studies are proposed.
Forfattere
Jiunn Luh Tan Igor Koloniuk Ondřej Lenz Jana Veselá Jaroslava Přibylová Rostislav Zemek Josef Špak Radek Čmejla Jiří Sedlák Dag-Ragnar Blystad Zhibo Hamborg Jana FránováSammendrag
Although global raspberries production has grown in the past decade, it remains threatened by plant viruses. This study surveyed raspberry viruses and associated arthropods in the Czech Republic between 2021 and 2022 across five regions. A total of 257 plant and 151 arthropod samples were tested using RT-(q)PCR for 12 viruses listed in the EPPO Certification scheme, plus raspberry leaf blotch virus (RLBV) and a novel virus, tentatively named raspberry-associated virus A (RaVA). Raspberry bushy dwarf virus (RBDV) was most prevalent (51.8%), followed by black raspberry necrosis virus (BRNV, 42.0%) and raspberry leaf mottle virus (RLMV, 28.4%). Four viruses—arabis mosaic virus, apple mosaic virus, strawberry latent ringspot virus, raspberry ringspot virus—were not detected. RBDV was also identified in Sambucus nigra, a new host, while mixed RLBV and RaVA infection was found in wild Rubus occidentalis. RLBV was experimentally transmitted to Nicotiana occidentalis 37B in the presence of Phyllocoptes gracilis. Seven of 39 arthropod species carried viruses, but only two—Amphorophora rubi idaei and Aphis idaei—are known vectors. PCR amplicons from 92 isolates were sequenced, revealing high variability in several viruses. These findings offer new insights but highlight the need for continued monitoring and research.
Sammendrag
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Forfattere
Dalphy Ondine Camira Harteveld Jorunn Børve Vinh Hong Le Ola Sigurd Øygard Dale Håvard Vedå Arne StensvandSammendrag
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Sammendrag
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Foredrag – Disease warning models in berries
Arne Stensvand, Håvard Eikemo, Anne-Grete Roer Hjelkrem
Sammendrag
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Sammendrag
Leather rot of strawberry fruit caused by the oomycete Phytophthora cactorum is detrimental to both freshly consumed and processed produce of this crop because of an off-odour flavour caused by two phenolic compounds, 4-ethylphenol (4-EP) and 4-ethyl-2-methoxyphenol (4-ethyl guaiacol, 4-EG). In this study, we have investigated differences in off-odour among strawberry genotypes and how the perception of the off-odour varies among people. Fruit of 13 strawberry genotypes, including five cultivars and eight selections, inoculated with P. cactorum were assessed by a sensory panel to determine differences in the characteristic leather rot odour. The content of aroma compounds, including the two phenolics, was analysed by headspace GC/MS and compared with sensory analysis. The amount of 4-EP and 4-EG varied greatly among the genotypes, and although the ones with the highest and lowest sensory scores also had the highest and lowest amounts of the phenolics, the correlation between their content and leather rot odour was not significant. The results clearly indicated that aroma components, of which the major ones were butanoic acid and acetic acid methyl and ethyl esters, hexanoic acid methyl ester and acetone, were important for the perception of leather rot off-odour. This suggests that natural strawberry aroma compounds can partly mask the characteristic leather rot odour independent of the level of the off-odour compounds. Consumer tests showed great variation in the ability of people to recognize the leather rot off-odour of strawberry fruit, especially at lower levels, but a few people were not able to detect the odour at all. The amount of contaminated strawberry fruit necessary for olfactory identification and to set an odour threshold of leather rot is further discussed.