Results 181 to 190 of about 21,164 (223)
Some of the next articles are maybe not open access.
Regular, rodlike, macromolecular structures in Artemia salina
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1979Artemia 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 +3 more
openaire +2 more sources
The genetics of Artemia salina: VII. Reproductive isolation
Journal of Heredity, 1976Fifteen 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
On the Mode of Activation of Sequestered Messengers in Artemia salina
Differentiation, 1976Activation of the dormant embryos of Artemia salina was marked by a rapid increase in 32P uptake which reached a stationary phase after 6 h of activation. The increase in 32P uptake by whole cysts was paralleled by its incorporation into nucleotides. Fractionation of acid-soluble nucleotides and alkaline hydrolysate of nucleic acids on Dowex-1-formate ...
C, Susheela, K, Jayaraman
openaire +2 more sources
Intranuclear Proteins of the Oocytes in Artemia salina L.
Nature, 1953RECENT biochemical and cytological investigations, dealing with the problem of intranuclear proteins, suggest that the nucleus has an important role in protein metabolism. In addition to the nucleo-proteins, of both the ribonucleic and deoxyribonucleic types, histones and more complex non-histone proteins have also been described in the nucleus ...
N, FAUTREZ-FIRLEFYN, J, FAUTREZ
openaire +2 more sources
The carotenoids of the brine shrimp, Artemia salina
Comparative Biochemistry and Physiology, 1965Abstract 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
Ontogenetical studies on extracellular hemoglobins of Artemia salina
Developmental Biology, 1978Abstract 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
Toxic Assessment of Triclosan and Triclocarban on Artemia salina
Bulletin of Environmental Contamination and Toxicology, 2015In this study, we investigated the possible acute toxic and genotoxic effects of triclosan (TCS) and triclocarban (TCC) on Artemia salina. Genotoxicity was evaluated using single-cell gel electrophoresis and apoptotic frequency assays (Annexin V-FITC/PI assay). Acute toxicity test results showed that TCC (LC50-24 h = 17.8 µg/L) was more toxic than TCS (
Xiaolu, Xu +6 more
openaire +2 more sources
Micropuncture studies of the osmoregulation in the nauplius of Artemia salina
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1978The osmoregulation of the nauplius of the brine shrimp, Artemia salina, was investigated using micropuncture and microanalytical techniques. The naupliar body fluid, hemolymph was hyposmotic to and had lower Na concentrations than the suspending medium for the range of medium salinities from 80 to 4,900 mM NaCl.
D, Russler, J, Mangos
openaire +2 more sources
Deoxyribonucleic Acid Content of Ovarian Cells in Artemia salina
Nature, 1950IN the ovary of Artemia salina, some oocytes undergo a peculiar transformation1. After the primary growth period, numerous granules giving a positive Feulgen reaction appear in the nucleus, fuse into clumps, and finally give rise to a large homogeneous droplet of strongly Feulgen-positive material.
Lison, Lucien, Fautrez-firlefyn, N.
openaire +3 more sources
Lethality Bioassay using Artemia salina L.
Journal of visualized experiments : JoVE, 2022Natural 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 +5 more
openaire +2 more sources