Results 301 to 310 of about 163,025 (332)
Some of the next articles are maybe not open access.
Sexual dimorphism in the brown algae
Perspectives in Phycology, 2014Sexual dimorphisms have been described in several groups of organisms, but while an important number of investigations have focused on animal and plant systems, much less is known about this phenomena in other eukaryotes. We review here the current know ledge on sexual dimorphisms in the brown algae, a group of multicellular eukaryotes that have been ...
Luthringer, Rémy +5 more
openaire +5 more sources
Sterol compositions in some green algae and brown algae
Steroids, 1968Abstract Compositions of the sterol in Chlorophyta and Phaeophyta were established quantitatively. Sterol content in Chlorophyta is more similar to higher plant, and it contains large amount of cholesterol. In Phaeophyta, fucosterol is the main sterol and small amounts of cholesterol, 24-methylene-cholesterol and saringosterol were identified.
Tamao Yoshida +3 more
openaire +3 more sources
Economic Botany, 1954
The enormous and self-replenishing supplies—perhaps 200 or 300 million tons—of these seaweeds in the oceans of the world have been commercially exploited so far primarily in the production of alginic acid, but the other carbohydrates, proteins, lipids, vitamins, enzymes and antibacterial substances in them and discussed here may hold even greater ...
openaire +2 more sources
The enormous and self-replenishing supplies—perhaps 200 or 300 million tons—of these seaweeds in the oceans of the world have been commercially exploited so far primarily in the production of alginic acid, but the other carbohydrates, proteins, lipids, vitamins, enzymes and antibacterial substances in them and discussed here may hold even greater ...
openaire +2 more sources
Cytoplasmic inheritance of organelles in brown algae
Journal of Plant Research, 2010Brown algae, together with diatoms and chrysophytes, are a member of the heterokonts. They have either a characteristic life cycle of diplohaplontic alternation of gametophytic and sporophytic generations that are isomorphic or heteromorphic, or a diplontic life cycle.
Taizo Motomura +2 more
openaire +3 more sources
1998
Publisher Summary Virus-like particles have been repeatedly reported from multicellular marine red and brown algae, and the release of viruses from infected algal hosts into the surrounding sea water also contributes to the number of virus-like particles in coastal waters. It has become apparent that they are intimately and unseparably connected with
Rolf Knippers +2 more
openaire +2 more sources
Publisher Summary Virus-like particles have been repeatedly reported from multicellular marine red and brown algae, and the release of viruses from infected algal hosts into the surrounding sea water also contributes to the number of virus-like particles in coastal waters. It has become apparent that they are intimately and unseparably connected with
Rolf Knippers +2 more
openaire +2 more sources
Strontium, Calcium and Magnesium in Brown Algae
Nature, 1967THE ion exchange properties of alginates have received some attention lately, particularly because of their potential value in connexion with therapy after strontium-90 overdoses1–3. It has been shown that alginates rich in guluronic acid residues have a greater affinity for calcium in the ion exchange reaction calcium–magnesium4 and for strontium in ...
Arne Haug, Olav Smidsrød
openaire +3 more sources
Balearone, a metabolite of the brown alga
Tetrahedron, 1984Abstract The isolation of a new metabolite of mixed biogenesis, balearone 1 from the brown alga Cystoscira balearica is described. The structure was determined by an X-ray diffraction analysis.
Giuseppe Ruberto +4 more
openaire +2 more sources
2003
The brown algae comprise the class Phaeophyceae, golden-brown algae that range from small filamentous forms to large, complex seaweeds. Of the estimated 1,836 species in approximately 285 genera, fewer than 1% are found in freshwater habitats. Because so few freshwater brown algae exist worldwide and new discoveries are continuing, this chapter ...
openaire +3 more sources
The brown algae comprise the class Phaeophyceae, golden-brown algae that range from small filamentous forms to large, complex seaweeds. Of the estimated 1,836 species in approximately 285 genera, fewer than 1% are found in freshwater habitats. Because so few freshwater brown algae exist worldwide and new discoveries are continuing, this chapter ...
openaire +3 more sources
Chromosomes of the brown algae
Phycologia, 1996Abstract Investigations concerning brown algal chromosomes have contributed to our understanding of the reproductive biology of brown algae. Techniques used in observing chromosomes in the light microscope are briefly summarized. Mitosis and meiosis are discussed, with an emphasis on aspects that are distinctive in the brown algae.
openaire +2 more sources
Brown Algae as a Model for Plant Organogenesis
2012Brown algae are an extremely interesting, but surprisingly poorly explored, group of organisms. They are one of only five eukaryotic lineages to have independently evolved complex multicellularity, which they express through a wide variety of morphologies ranging from uniseriate branched filaments to complex parenchymatous thalli with multiple cell ...
Alok Arun +3 more
openaire +3 more sources