The effect of silicate on polyamine oxidase genes in Skeletonema dohrnii.

By using Skeletonema dohrnii as the experimental algal species, we investigated how silicate concentration impacts the polyamine metabolism of diatoms in our experiment. Three different silicate concentrations were set for cultivation, and Skeletonema dohrnii at the exponential growth phase was selected to analyze basic physiological parameters, polyamine content, and Polyamine oxidase (PAO) gene expression under varying silicate concentrations. Results showed that low silicate concentrations led to reduced growth rate and polyamine content, with down-regulation of PAO gene expression.

Diversity and Spatial Distribution of Chromophytic Phytoplankton in the Bay of Bengal Revealed by RuBisCO Genes (L).

Phytoplankton are the basis of primary production and play important roles in regulating energy export in marine ecosystems. Compared to other regions, chromophytic phytoplankton are considerably understudied in the Bay of Bengal (BOB). Here, we investigated community structure and spatial distribution of chromophytic phytoplankton in the BOB by using RuBisCO genes (Form ID L).

Quantitative Proteomic Analysis Reveals Novel Insights into Intracellular Silicate Stress-Responsive Mechanisms in the Diatom .

Diatoms are a successful group of marine phytoplankton that often thrives under adverse environmental stress conditions. Members of the genus are ecologically important which may subsist during silicate stress and form a dense bloom following higher silicate concentration. However, our understanding of diatoms' underlying molecular mechanism involved in these intracellular silicate stress-responses are limited.

Immunological characterization and expression of lily-type lectin in response to environmental stress in turbot (Scophthalmus maximus).

Lectins are a superfamily of carbohydrate-binding proteins that are widely distributed throughout living organisms. In earlier work, we identified lily-type lectin (SmLTL) in the skin mucus of turbot Scophthalmus maximus, and we characterized the protein in the present study. Results from qRT-PCR indicated that SmLTL was expressed highly in skin, intestine and gill tissue.

Identification, expression and function of apolipoprotein E in annual fish Nothobranchius guentheri: implication for an aging marker.

Apolipoprotein E (apoE) is a lipid-associated protein present in both plasma and in central nervous system. Variation in apoE gene has been reported to be associated with longevity in humans as well as with aged diseases such as atherosclerosis, Alzheimer's disease, and Parkinson's disease. However, information regarding the function and structure-activity relationship of apoE in lower vertebrates is rather limited.