Brown alga Ectocarpus sp. belongs to Phaeophyceae, a class of macroalgae that evolved complex multicellularity. is dominant seaweed in temperate regions, abundant mostly the intertidal zones, an environment with high levels abiotic stresses. Previous transcriptomic analysis revealed several genes consistently induced by various stresses; one these Esi0017_0056, which encodes protein unknown fun...

Understanding long-term persistence and variability in species populations can help to predict future survival, growth and distribution; however, sustained observations are exceedingly rare. We examine and interpret a remarkable record of the calcareous brown alga Padina pavonica (Phaeophyceae) at its northern limit on the south coast of England (50°N, 1-3°W) from 1680 to 2014, which is probabl...

The 3-dimensional structure of the plastid nucleoid was determined from serial sections of the plastid of dark-grown, greening, and light-grown cells of Ochromonas danica. In lightgrown and greening cells, the chloroplast nucleoid forms a continuous cord or ring which closely follows the rim of each lateral lobe of the chloroplast and is continuous across the top and bottom of the bridge connec...

Crustose brown algae have relatively simple morphology and anatomy, and the limited characters were a major obstacle in delineating species of Mesospora (Ralfsiales, Phaeophyceae). The type species, Mesospora schmidtii, was described using material collected in Indonesia. A subsequent study, using material from Japan, was identified as M. schmidtii, but we questioned the identity. Therefore, we...

Traditional Chinese Marine Medicine (TCMM) represents one of the medicinal resources for research and development of novel anticancer drugs. In this study, to investigate the presence of anticancer activity (AA) displayed by cold or hot nature of TCMM, we analyzed the association relationship and the distribution regularity of TCMMs with different nature (613 TCMMs originated from 1,091 species...

Terrestrial plants and mammals, although separated by a great evolutionary distance, have each arrived at a highly conserved body plan in which universal allometric scaling relationships govern the anatomy of vascular networks and key functional metabolic traits. The universality of allometric scaling suggests that these phyla have each evolved an 'optimal' transport strategy that has been over...

Using outdoor mesocosms we investigated the relative importance of the direct and indirect (here: altered grazing) effects of seawater warming on benthic microalgae in a Baltic Sea Fucus vesiculosus (Phaeophyceae) system during the spring season. Seawater warming had a positive main effect on microalgal total biomass accrual and growth rate and on total mesograzer abundance and biomass. Moreove...

P-Glucans occur in micro-organisms and higher plants as structural constituents of cell walls, as reserve materials and as extracellular substances of uncertain significance. Laninarin is such a reserve polysaccharide in many Phaeophyceae and it can be regarded as a mannitol-containing fl-D-glucan in which the main polymeric linkage is fl-(1-+3). Enzymes hydrolysing fi-D-(1-+3)-glucans have bee...