1,720,985 research outputs found
EXPRESSION AND FUNCTIONAL ANALYSIS OF CITITF1, AN ASCIDIAN NK-2 CLASS GENE, SUGGEST ITS ROLE IN ENDODERM DEVELOPMENT
No full textDevelopmental regulation and tissue-specific localization of calmodulin mRNA in the protochordate Ciona intestinalis
No full textAn indoor study of the combined effect of industrial pollution and turbulence events on the gut environment in a marine invertebrate: The response of the gut environment to polluted sediment reworking
No full textNatural storms are able to determine reworking of seabed up to considerable depths and favour suspension of sediment-associated chemicals. Yet, a direct link between exposure to resuspended contaminants and the biological effects on marine organisms have to be fully established. We exposed adults of a suspension feeder, the ascidian Ciona robusta, to polluted sediment (e.g., containing mixtures of polycyclic aromatic hydrocarbons and heavy metals) from the industrial area of Bagnoli-Coroglio under two temporal patterns (‘aggregated’ vs. ‘spaced’) of turbulence events. Then, we assessed the impact of resuspended pollutants on the ascidian gut environment via four broad categories: oxidative stress, innate immunity, host-microbiota interactions, and epithelium. An early oxidative stress response was seen after a week of exposure to static sediment. Instead, water turbulence had no effect on the antioxidant defence. The first episode of turbulent suspension induced a minimal pro-inflammatory response in the ‘spaced’ pattern. Mucus overproduction and a complete occlusion of the crypt lumen were found following sediment reworking. This study suggests a protective response of the gut environment in marine invertebrates exposed to environmental extremes, leading to increased susceptibility to disease and to concerns on the combined effects of chronic environmental contamination and acute disturbance events possibly associated with climate change
Unusual number and genomic organization of Hox genes in the tunicate Ciona intestinalis.
No full textExpression and functional analyses of Cititf1, an ascidian NK-2 class gene, suggests its role in endoderm development.
No full textExpression and functional analyses of Cititf1, an ascidian NK-2 class gene, suggests its role in endoderm development.
No full textUnusual number and genomic organization of Hox genes in the tunicate Ciona intestinalis.
No full textCihox5, a new Ciona intestinalis Hox-related gene, is involved in regionalization of the spinal cord.
No full textCihox5, a new Ciona intestinalis Hox-related gene, is involved in regionalization of the spinal cord.
No full textEXPRESSION AND FUNCTIONAL ANALYSIS OF CITITF1, AN ASCIDIAN NK-2 CLASS GENE, SUGGEST ITS ROLE IN ENDODERM DEVELOPMENT
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