Results 211 to 220 of about 23,214 (258)

The hemoglobins of Artemia salina—III. Characterization

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1976
1. 1. Three brine shrimp hemoglobins (Hb-1, Hb-2, and Hb-3) have the same sedimentation coefficient (S20,w = 11.3S). The three native molecules have a molecular weight of about 230,000 and are stable at ionic strength 0.04–2.04 and pH 7.5–9.8. 2. 2.
S T, Bowen, H W, Moise, G, Waring, M C, Poon   +3 more
openaire   +2 more sources

Lethality Bioassay using Artemia salina L.

Journal of visualized experiments : JoVE, 2022
Natural products have been used since ancient times to produce medicines. Nowadays, there are plenty of chemotherapeutic drugs obtained from natural sources and used against a plethora of diseases. Unfortunately, most of these compounds often display systemic toxicity and adverse effects.
Santos Filipe, Márcia, Isca, Vera M S, Ntungwe N, Epole, Princiotto, Salvatore, Díaz-Lanza, Ana Maria, Rijo, Patrícia   +5 more
openaire   +2 more sources

Regular, rodlike, macromolecular structures in Artemia salina

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1979
Artemia salina of different origins and in different developmental stages contains regular, rodlike, macromolecular structures. The particles were visualized by electron microscopy after negative staining. They can be purified from the postmitochondrial supernatant by sucrose gradient centrifugation in the presence of EDTA.
P, Nieuwenhuysen, F, Rijsheuvels, H, Slegers, W, Jacob   +3 more
openaire   +2 more sources

Accumulation of cadmium by Artemia salina

Marine Biology, 1979
The relative importance of accumulation of cadmium by Artemia salina (L.) directly from solution and from ingested food has been studied at 3 cadmium concentrations (0.1, 1 and 10 ppm) under controlled experimental conditions. At each cadmium concentration, A.
J. R. Jennings, P. S. Rainbow
openaire   +1 more source

Carotenoid metabolism in Artemia salina L.

Comparative Biochemistry and Physiology, 1969
Abstract 1. 1. The carotenoid metabolism in Artemia salina has been studied with the feeding of algae Chaetoceras gracilis and pure carotenoids. 2. 2. Artemia salina was unable to metabolize β-carotene to astaxanthin beyond canthaxanthin. 3. 3.
Masahiro Hata, Mitsuo Hata
openaire   +1 more source

The genetics of Artemia salina: VII. Reproductive isolation

Journal of Heredity, 1976
Fifteen of 20 gonochoristic Artemia populations are crossfertile with diploid San Francisco shrimps, producing fertile F1 and viable F2 progeny. Partial sex linkage of white eye was observed and frequency of crossing over between the white and sex loci did not exceed the range of values observed in San Francisco shrimps.
L S, Clark, S T, Bowen
openaire   +2 more sources

Acute toxicity of organic solvents on Artemia salina

Bulletin of Environmental Contamination and Toxicology, 1994
Organic solvents can make their way into the environment as industrial wastes and components of pesticide formulation. In laboratory bioassays, the use of organic formulations. In laboratory bioassays, the use of organic solvents is often unavoidable, since many pesticides and organic pollutants have low water solubility and must be dissolved in ...
M V, Barahona-Gomariz, F, Sanz-Barrera, S, Sánchez-Fortún   +2 more
openaire   +2 more sources

Ontogenetical studies on extracellular hemoglobins of Artemia salina

Developmental Biology, 1978
Abstract Ontogeny of the three extracellular hemoglobins of zygogenetic races of Artemia salina was studied. Hb-II was the first hemoglobin to appear in the swimming nauplius at about 2 hr posthatching, followed by Hb-III at about 8 hr posthatching. Hb-I was detectable by benzidine-H2O2 staining of cellulose acetate electrophoregrams only after the ...
J, Heip, L, Moens, M, Joniau, M, Kondo
openaire   +2 more sources

Neurosecretory cells inArtemia salina L.

Experientia, 1965
Mit der Gomori-Technik wurden beiArtemia drei Typen neurosektretorischer Zellen nachgewiesen. Im Gehirn sind grosse, ovale Zellen mit vakuolisiertem Cytoplasma vorhanden, von denen einige grosse Axone besitzen. Der 2. Typus ist kleiner und weist keine zum Augenstiel fuhrenden Fortsatze auf. Der 3.
I C, Baid, L S, Ramaswami
openaire   +2 more sources

The carotenoids of the brine shrimp, Artemia salina

Comparative Biochemistry and Physiology, 1965
Abstract 1. 1. The carotenoid pigments of the Branchiopod crustacean, Artemia salina were studied. They consisted exclusively of the keto-carotenoids, canthaxanthin and echinenone, in a ratio of 19:1. 2. 2. These findings were discussed with relation to the carotenoid pigments in the other sub-classes of crustacea.
openaire   +2 more sources