Organic aggregates formed by benthopleustophyte brown algaAcinetospora crinita(Acinetosporaceae, Ectocarpales)

• DOI: 10.1111/jpy.12413
• Publication Date: 2016-03-26T16:58:17Z
• Authors: Michele Giani; Gianfranco Sartoni; Caterina Nuccio; Daniela Berto; Carla Rita Ferrari; Mirjana Najdek; Paola Sist; Ranieri Urbani
• Keywords: Brown algae; Green algae

This work presents the elemental, polysaccharide, and fatty acid compositions of benthic aggregates formed by filamentous brown alga Acinetospora crinita, which are widely spread on rocky bottoms Mediterranean Sea. The can be characterized as mineralized centers in regeneration nutrients recycling dissolved organic matter actively occur favor development an abundant phytoplankton community. Analyses stable isotopes C N display their marine origin could provide evidence processes that inside/outside aggregates. monosaccharide Adriatic Tyrrhenian mucilages produced A. crinita were quite similar. In particular, sample resembled average composition high molecular weight exopolymers, observed differences ascribed to different degradation stages. patterns found for similar those isolated algae with variable contributions from embedded diatom species. bacterial contribution pool was low, most likely due known poor conditions heterotrophic growth.