Blar i Institutt for biologi på tidsskrift "Scientific Reports"
Viser treff 1-20 av 38
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A CRISPR/Cas9 system adapted for gene editing in marine algae
(Journal article; Peer reviewed, 2016)Here we report that the CRISPR/Cas9 technology can be used to efficiently generate stable targeted gene mutations in microalgae, using the marine diatom Phaeodactylum tricornutum as a model species. Our vector design opens ... -
A sex-inducing pheromone triggers cell cycle arrest and mate attraction in the diatom Seminavis robusta
(Journal article; Peer reviewed, 2016)Although sexual reproduction is believed to play a major role in the high diversification rates and species richness of diatoms, a mechanistic understanding of diatom life cycle control is virtually lacking. Diatom sexual ... -
Arabidopsis mutants impaired in glutathione biosynthesis exhibit higher sensitivity towards the glucosinolate hydrolysis product allyl-isothiocyanate
(Journal article; Peer reviewed, 2018)Upon tissue damage the plant secondary metabolites glucosinolates can generate various hydrolysis products, including isothiocyanates (ITCs). Their role in plant defence against insects and pest and their potential health ... -
Arabidopsis myrosinases link the glucosinolate-myrosinase system and the cuticle.
(Journal article; Peer reviewed, 2016)Both physical barriers and reactive phytochemicals represent two important components of a plant’s defence system against environmental stress. However, these two defence systems have generally been studied independently. ... -
Bioluminescence as an ecological factor during high Arctic polar night
(Journal article; Peer reviewed, 2016)Bioluminescence commonly influences pelagic trophic interactions at mesopelagic depths. Here we characterize a vertical gradient in structure of a generally low species diversity bioluminescent community at shallower ... -
Black-legged kittiwakes as messengers of Atlantification in the Arctic
(Journal article; Peer reviewed, 2018)Climate warming is rapidly altering marine ecosystems towards a more temperate state on the European side of the Arctic. However, this “Atlantification” has rarely been confirmed, as long-term datasets on Arctic marine ... -
Characteristics determining host suitability for a generalist parasite
(Journal article; Peer reviewed, 2018)Host quality is critical for parasites. The common cuckoo Cuculus canorus is a generalist avian brood parasite, but individual females show strong preference for a specific host species. Here, we use three extensive datasets ... -
Chronic unpredictable stress induces anxiety-like behaviors in young zebrafish
(Peer reviewed; Journal article, 2020)Exposure to stress during early life affects subsequent behaviors and increases the vulnerability to adult pathologies, a phenomenon that has been well documented in humans and rodents. In this study, we introduce a chronic ... -
Correlation between microbiota and growth in Mangrove Killifish (Kryptolebias marmoratus) and Atlantic cod (Gadus morhua)
(Journal article; Peer reviewed, 2016)The vertebrate gut is host to large communities of bacteria, and one of the beneficial contributions of this commensal gut microbiota is the increased nutritional gain from feed components that the host cannot degrade on ... -
CRISPR/Cas9-mediated ablation of elovl2 in Atlantic salmon (Salmo salar L.) inhibits elongation of polyunsaturated fatty acids and induces Srebp-1 and target genes
(Journal article; Peer reviewed, 2019)Atlantic salmon can synthesize polyunsaturated fatty acids (PUFAs), such as eicosapentaenoic acid (20:5n-3), arachidonic acid (20:4n-6) and docosahexaenoic acid (22:6n-3) via activities of very long chain fatty acyl elongases ... -
CRISPR/Cas9-mediated editing of Δ5 and Δ6 desaturases impairs Δ8-desaturation and docosahexaenoic acid synthesis in Atlantic salmon (Salmo salar L.)
(Journal article; Peer reviewed, 2019)The in vivo functions of Atlantic salmon fatty acyl desaturases (fads2), Δ6fads2-a, Δ6fads2-b, Δ6fads2-c and Δ5fads2 in long chain polyunsaturated fatty acid (LC-PUFA) synthesis in salmon and fish in general remains to be ... -
CTmax is repeatable and doesn't reduce growth in zebrafish
(Journal article; Peer reviewed, 2018)Critical thermal maximum (CTmax) is a commonly and increasingly used measure of an animal’s upper thermal tolerance limit. However, it is unknown how consistent CTmax is within an individual, and how physiologically taxing ... -
Detection and differentiation of breast cancer sub-types using a cPLA2a activatable fluorophore
(Journal article; Peer reviewed, 2019)Cytosolic phospholipase A2α (cPLA2α) has been shown to be elevated in breast cancer and is a potential biomarker in the differentiation of molecular sub-types. Using a cPLA2α activatable fluorophore, DDAO arachidonate, we ... -
Dietary fatty acid source has little effect on the development of the immune system in the pyloric caeca of Atlantic salmon fry
(Journal article; Peer reviewed, 2019)The quality and relative amounts of dietary lipids may affect the health and growth of cultured Atlantic salmon. So far, little is known about their effects on the performance of the fish immune system during early life ... -
Dynamic responses to silicon in Thalassiosira pseudonana - Identification, characterisation and classification of signature genes and their corresponding protein motifs
(Journal article; Peer reviewed, 2017)The diatom cell wall, or frustule, is a highly complex, three-dimensional structure consisting of nanopatterned silica as well as proteins and other organic components. While some key components have been identified, ... -
Extreme events, trophic chain reactions, and shifts in phenotypic selection
(Peer reviewed; Journal article, 2023)Demographic consequences of rapid environmental change and extreme climatic events (ECEs) can cascade across trophic levels with evolutionary implications that have rarely been explored. Here, we show how an ECE in high ... -
Feeding type and development drive the ingestion of microplastics by freshwater invertebrates
(Journal article; Peer reviewed, 2017)Microscopic plastic items (microplastics) are ubiquitously present in aquatic ecosystems. With decreasing size their availability and potential to accumulate throughout food webs increase. However, little is known on the ... -
Food availability drives plastic self-repair response in a basal metazoan-case study on the ctenophore Mnemiopsis leidyi A. Agassiz 1865
(Journal article; Peer reviewed, 2017)Many marine invertebrates including ctenophores are capable of extensive body regeneration when injured. However, as for the invasive ctenophore Mnemiopsis leidyi, there is a constant subportion of individuals not undergoing ... -
In situ recordings of large gelatinous spheres from NE Atlantic, and the first genetic confirmation of egg mass of Illex coindetii (Vérany, 1839) (Cephalopoda, Mollusca)
(Peer reviewed; Journal article, 2021)In total, 90 gelatinous spheres, averaging one meter in diameter, have been recorded from ~ 1985 to 2019 from the NE Atlantic Ocean, including the Mediterranean Sea, using citizen science. More than 50% had a dark streak ... -
Infection with koala retrovirus subgroup B (KoRV-B), but not KoRV-A, is associated with chlamydial disease in free-ranging koalas (Phascolarctos cinereus)
(Journal article; Peer reviewed, 2017)The virulence of chlamydial infection in wild koalas is highly variable between individuals. Some koalas can be infected (PCR positive) with Chlamydia for long periods but remain asymptomatic, whereas others develop clinical ...