Techniques were developed for extracting histones from isolated
chromatin of encysted embryos of Artemia salina. Histone extracts
from embryos collected at eight time intervals after rehydration and
initiation of development were analyzed by electrophoresis for qualitative
and quantitative changes in composition. Histone to DNA ratios
were determined for the same...
In Artemia salina nauplii acclimated in 0.25 M, 0.5 M, 1.0 M, 1.5 M,
2.0 M, and 2.5 M NaCl incorporation of ¹⁴CO₂ into free amino acids was
greatly stimulated in the higher salinities. The ¹⁴C label was found in
aspartic acid, serine, glutamic acid, proline and alanine.
Hypersalinity also...
The cytoplasmic isozyme of malate dehydrogenase (s-MDH) has been isolated from brine shrimp nauplii to a state of high purity with a protocol involving ammonium sulfate fractionation and chromatography on DEAE-cellulose, followed by sequential passes over cellulose phosphate columns at pH 5.8 then 5.0. The purified enzyme is free of...
Chlorine – 36 (36Cl) is produced naturally, through neutron activation of stable chlorine during nuclear weapons detonation, or from neutron capture on residual chlorine in graphite piles. It has a half-life of 301,000 years and decays by the means of beta decay with an average energy of 236.33 keV. Due...
Dietary iodine may play an important role in the nutritional health of freshwater fish larvae. Artemia, commonly used for the culture of larval zebrafish (Danio rerio), contain low concentrations of iodine when compared with wild zooplankton. Water-soluble micronutrients, such as iodine, are difficult to deliver to Artemia due to rapid...
Rotifers and brine shrimp (Artemia) are important prey items for rearing marine fish larvae. Their availability in the water column may be reduced when they are transferred to larval rearing tanks at lower temperature. In this study, Brachionus rotundiformis (SS-type) and Brachionus plicatilis (L-type) were semi-continuously cultured and fed on...