scholarly journals Feeding Preference of a Flightless Strain of Harmonia axyridis（Coleoptera: Coccinellidae）between Brine Shrimp, Artemia salina（Anostraca: Artemiidae）, and Aphis gossypii（Hemiptera: Aphididae）.

2020 ◽  
Vol 64 (2) ◽  
pp. 65-68
Author(s):  
Kinuyo Yoneya ◽  
Seita Nakajima ◽  
Eizi Yano
Keyword(s):  
Brine Shrimp ◽  
Harmonia Axyridis ◽  
Aphis Gossypii ◽  
Feeding Preference ◽  
Artemia Salina ◽  
Flightless Strain

Biosynthesis of the Diguanosine Nucleotides. I. Purification and Properties of an Enzyme from Yolk Platelets of Brine Shrimp Embryos

1974 ◽  
Vol 52 (3) ◽  
pp. 231-240 ◽  
Author(s):  
A. H. Warner ◽  
P. C. Beers ◽  
F. L. Huang
Keyword(s):  
Molecular Weight ◽  
Brine Shrimp ◽  
Artemia Salina ◽  
Temperature Optimum ◽  
Small Molecular Weight ◽  
Ph Optimum ◽  
Optimal Activity ◽  
Purification And Properties

An enzyme that catalyzes the synthesis of P1P4-diguanosine 5′-tetraphosphate (Gp4G) has been isolated and purified from yolk platelets of encysted embryos of the brine shrimp, Artemia salina. The enzyme GTP:GTP guanylyltransferase (Gp4G synthetase) utilizes GTP as substrate, has a pH optimum of 5.9–6.0, a temperature optimum of 40–42 °C, and requires Mg2+ and dithiothreitol for optimal activity. The synthesis of Gp4G is inhibited markedly by pyrophosphate, whereas orthophosphate has no effect on the reaction. In the presence of GDP the enzyme also catalyzes the synthesis of P1,P3-diguanosine 5′-triphosphate (Gp3G), but the rate of synthesis is low compared with Gp4G synthesis and dependent upon other small molecular weight components of yolk platelets.

scholarly journals MITOCHONDRIAL BIOGENESIS DURING DIFFERENTIATION OF ARTEMIA SALINA CYSTS

1973 ◽  
Vol 58 (3) ◽  
pp. 643-649 ◽  
Author(s):  
H. Schmitt ◽  
H. Grossfeld ◽  
U. Z. Littauer
Keyword(s):  
Cytochrome C ◽  
Cytochrome Oxidase ◽  
Cytochrome B ◽  
Mitochondrial Biogenesis ◽  
Brine Shrimp ◽  
Morphological Changes ◽  
Artemia Salina ◽  
Mitochondrial Morphology ◽  
Second Stage ◽  
Two Stages

Mitochondria isolated from cysts of Artemia salina (brine shrimp) were found to be devoid of cristae and to possess a low respiratory capability. Hydration of the cysts induces marked biochemical and morphological changes in the mitochondria. Their biogenesis proceeds in two stages. The first stage is completed within 1 h and is characterized by a rapid increase in the respiratory capability of the mitochondria, their cytochrome oxidase, cytochrome b, cytochrome c and perhaps some morphological changes. In the second stage there is an increase in the protein-synthesizing capacity of the mitochondria as well as striking changes in mitochondrial morphology leading to the formation of cristae.

Protective Effect of Natural and Processed Coconut Water by Non-thermal Technologies Against Oxidative Stress in Brine Shrimp (Artemia salina)

2021 ◽  
Vol 14 (4) ◽  
pp. 702-716
Author(s):  
Thaiz Batista Azevedo Rangel Miguel ◽  
Elaine Cristina Maciel Porto ◽  
Sergimar Kennedy de Paiva Pinheiro ◽  
Emilio de Castro Miguel ◽  
Fabiano André Narciso Fernandes ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Protective Effect ◽  
Brine Shrimp ◽  
Artemia Salina ◽  
Coconut Water

Micropuncture studies of the osmoregulation in the nauplius of Artemia salina

1978 ◽  
Vol 234 (5) ◽  
pp. R216-R222 ◽  
Author(s):  
D. Russler ◽  
J. Mangos
Keyword(s):  
Concentration Gradient ◽  
Brine Shrimp ◽  
Body Fluid ◽  
Artemia Salina ◽  
Artificial Seawater ◽  
Temperature Dependent ◽  
Main Site ◽  
Nacl Concentration

The 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. In medium containing 20 mM NaCl, the hemolymph was hyperosmotic to the medium, with osmolarity of 101 +/- 8 mosmol/1 and with [Na] of 49 +/- 11 meq/1. Whereas the maximal observed NaCl concentration gradient between hemolymph and medium was 4,785 mM, during the incubation of nauplii in artificial seawater (osmolarity: 932 mosmol/1; and [Na]: 502 meq/1) the osmolarity and [Na] of the naupliar hemolymph were 161 +/- SD 16 mosmol/1 and 86 +/- 14 meq/1, respectively. The influx and efflux of Na between medium and hemolymph were measured using 22Na. The fluxes of this ion were temperature dependent. The main site of efflux of 22Na was the neck organ as was shown by experiments of differential recovery of 22Na introduced in the hemolymph. These studies demonstrate that the nauplius of A. salina has the ability to osmoregulate not only against high environmental salinities but also against low salinities approaching those of freshwater.

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