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.
2021
Authors
Priyanka Trivedi Nga Nguyen Linards Klavins Jorens Kviesis Esa Heinonen Janne Remes Soile Jokipii-Lukkari Maris Klavins Katja Karppinen Laura Jaakola Hely HäggmanAbstract
In this study, cuticular wax load, its chemical composition, and biosynthesis, was studied during development of wild type (WT) bilberry fruit and its natural glossy type (GT) mutant. GT fruit cuticular wax load was comparable with WT fruits. In both, the proportion of triterpenoids decreased during fruit development concomitant with increasing proportions of total aliphatic compounds. In GT fruit, a higher proportion of triterpenoids in cuticular wax was accompanied by a lower proportion of fatty acids and ketones compared to WT fruit as well as lower density of crystalloid structures on berry surfaces. Our results suggest that the glossy phenotype could be caused by the absence of rod-like structures in GT fruit associated with reduction in proportions of ketones and fatty acids in the cuticular wax. Especially CER26-like, FAR2, CER3-like, LTP, MIXTA, and BAS genes showed fruit skin preferential expression patterns indicating their role in cuticular wax biosynthesis and secretion.
Authors
Dragana Skočajić Uroš Gašić Dragana Dabic´ Zagorac Marija Nešić Živoslav Tešić Mekjell Meland Milica Fotirić AkšićAbstract
The aim of this study was to prove that under in vitro conditions, the adhesiveness of the callus between rootstock and scion, the development of callus cells at the points of fusion, and the presence of phenolic components are closely related to the level of (in) compatibility of the grafting combinations between Sato-zakura cherry cultivars (‘Amanogawa’, ‘Kanzan’, and ‘Kiku-shidare-zakura’) and commercial rootstocks. Prunus avium, Prunus ‘Colt’, Prunus mahaleb and Prunus serrulata were used as compatible and Prunus serotina and Pyrus communis ‘Pyrodwarf’ were used as two potentially incompatible rootstocks. The results indicated the significant manifestations of the early signs of the incompatibility on the callus junction. Phenols, as well as tissue senescence, were very precisely localized by toluidine blue and alcian blue as well as safranin staining, which can indicate the early signs of the callus incompatibility in some grafting unions. In the callus unions of Prunus avium with ‘Amanogawa’ and ‘Kiku-shidare-zakura’ the results of chemical analyses indicated that the existence of several flavonols, flavones and phenol acids could be involved in the incompatibility process in grafted combination. The detection of flavonol astragalin in the unions can be a biomarker of compatibility between scion and the rootstock, while some polyphenols, such as neochlorogenic acid, sinapic acid, ellagic acid, caffeic acid, baicalein, naringenin, apigenin and luteolin can be used as the indicators of graft incompatibility. p-coumaric acid and ferulic acid could be used for detection of delayed incompatibility.
Authors
F. Shepherd C. chylinski M. Hutchings R. Kelly A. MacRae J.-P. Salminen V. Maurer Håvard Steinshamn S. Fittje A. Morell Perez S. AthanasiadouAbstract
No abstract has been registered
Authors
F. Shepherd C. chylinski M. Hutchings R. Kelly A. MacRae J.-P. Salminen V. Maurer Håvard Steinshamn S. Fittje A. Morell Perez S. AthanasiadouAbstract
No abstract has been registered
Authors
Kirsten TørresenAbstract
No abstract has been registered
Authors
Berit Marie Blomstrand Heidi L Enemark Øivind Øines Håvard Steinshamn Inga Marie Aasen K.-C. Mahnert Kristin Sørheim Spiridoula Athanasiadou S. Thamsborg Ian WoolseyAbstract
No abstract has been registered
Authors
Berit Marie Blomstrand Heidi L Enemark Øivind Øines Håvard Steinshamn Inga Marie Aasen K.-C. Mahnert Kristin Sørheim Spiridoula Athanasiadou S. Thamsborg Ian WoolseyAbstract
No abstract has been registered
Authors
Jennifer Mildenberger Janne Kristin Stangeland Céline ReboursAbstract
No abstract has been registered
Authors
Eva BrodAbstract
No abstract has been registered
Authors
Tamaryn A. Asbury Rhett Bennett Aidan Price Charlene da Silva Markus Bürgener Juliana D. Klein Simo Maduna N. Sidat S. Fernando Aletta E. Bester-van der MerweAbstract
In recent decades, a combination of increasing demand and economic globalisation has created a global market for elasmobranch products, especially the highly prized shark fins for Asian markets. Morphological species identification, as well as traditional cytochrome c oxidase subunit I (COI) barcoding of shark fins and other products, become challenging when in a processed state (such as dried or bleached shark fins). Here a mini-barcoding multiplex assay was applied to determine the species of origin in case studies from southern Africa involving confiscated shark fins in different states of processing. This highlights that the illegal shark fin trade in southern Africa to a large extent comprises threatened species. Matching of sequences of the confiscated fins against public databases revealed several threatened species, including the CITES-listed species Carcharodon carcharias, Carcharhinus longimanus, Isurus oxyrinchus, Rhynchobatus djiddensis and Sphyrna lewini. The findings highlight the need for improved trade monitoring, such as to eliminate illegal trade in shark fins, which can in part be achieved through more widespread genetic sampling of internationally traded products. However, a major limitation to DNA barcoding in general lies in the lack of curated voucher specimens available on public databases. To facilitate the application of molecular methods in a more comprehensive evaluation of elasmobranch trade regionally, a concerted effort to create reliable curated sequence data is recommended.