scholarly journals Transcriptomic analysis of brine shrimp Artemia franciscana across a wide range of salinities

2022 ◽  
Vol 61 ◽  
pp. 100919
Author(s):  
JunMo Lee ◽  
Byung Cheol Cho ◽  
Jong Soo Park
Keyword(s):  
Brine Shrimp ◽  
Artemia Franciscana ◽  
Transcriptomic Analysis ◽  
Wide Range

Respiration of Artemia franciscana cultured under different salinities

2011 ◽  
Vol 61 (4) ◽  
pp. 413-425 ◽  
Author(s):  
Mona M. El-Gamal
Keyword(s):  
Oxygen Consumption ◽  
Brine Shrimp ◽  
Developmental Stages ◽  
External Medium ◽  
Artemia Franciscana ◽  
Uptake Rates ◽  
Wide Range ◽  
Brine Shrimps ◽  
Consumption Rates ◽  
Oxygen Tensions

AbstractThe available studies on oxygen consumption by Artemia related to different salinities reported contradictory results. However, most of these studies have been obtained only for newly hatched nauplii or adults, and have neglected the gradual accommodation that gives a picture about what really happens in nature. In order to face the problems noted above individuals of Artemia franciscana were acclimated to four different salinities (25 g/L, 35 g/L, 70 g/L and 120 g/L) under laboratory conditions. The oxygen consumption under declining oxygen tensions (Po 2) for each of the 19 stages in Artemia life metamorphic developments was examined. The brine shrimp under different salinities is a respiratory regulator over a wide range of Po 2's. Oxygen consumption rates varied across the salinities with a general inverse relationship in uptake rates versus salinity. The brine shrimps' individual weight significantly decreased with increasing salt concentration of the external medium. Generally, regulation of oxygen consumption improved with development. Specimens cultured under high salinities (70 g/L and 120 g/L) started the regulation earlier than low salinities, even before heart and gill formation (in stage 2) and high salinities also accelerated the development of the heart and the gut earlier than those cultured under lower salinities (stage 3 instead of 6). Later developmental stages did not perform osmotical work in the same manner as nauplii did (0-6) and oxygen consumption did not drive the ionic regulation of Artemia franciscana specimens cultured under different salinities.

Toxicity Assessment of Nephrolepis exaltata (L.) Schott, Fam. Nephrolepidaceae

2018 ◽  
Vol 1 (1) ◽  
pp. 27-36
Author(s):  
Patriciu Constantin Popovici ◽  
Viorel Robert Ancuceanu ◽  
Tudorel Octavian Olaru ◽  
Cristina-Silvia Stoicescu ◽  
Mihaela Dinu
Keyword(s):  
Triticum Aestivum ◽  
Brine Shrimp ◽  
Fluorescent Microscopy ◽  
Microscopic Analysis ◽  
Toxicity Assessment ◽  
Artemia Franciscana ◽  
Species Identity ◽  
Biological Assays ◽  
Potential Safety ◽  
Brine Shrimp Lethality Assay

Abstract The fern Nephrolepis exaltata (L.) Schott, fam. Nephrolepidaceae, has little traditional medicinal use. In order to estimate its potential safety, in the present study we have investigated the phytotoxicity (on Triticum aestivum L.) and toxicity on brine shrimp of extracts from plants grown hydroponically. The species identity was confirmed by macroscopic and microscopic examinations on rhizomes, rachises, pinnae and runners, using bright field and fluorescent microscopy. Biological assays were performed on aqueous and ethanol solutions of the fronds. The brine shrimp lethality assay was performed on Artemia franciscana Kellog and a phytobiological bioassay on Triticum aestivum L. Lethality, root elongation and karyokinetic film modifications were evaluated, and LC50 and IC50 values were calculated. The microscopic analysis revealed the main histo-anatomic elements: polystelic structure and hypodermis (rhizome, rachis, runners), trichomes (rachis), homogenous structure, trichomes and diacytic/anisocytic stomata (leaves). The ethanol and aqueous extracts showed low cytotoxic effects on both Triticum aestivum roots and Artemia franciscana nauplii.

scholarly journals Bioencapsulation of Two Different VibrioSpecies in Nauplii of the Brine Shrimp (Artemia franciscana)

1998 ◽  
Vol 64 (6) ◽  
pp. 2318-2322 ◽  
Author(s):  
Bruno Gomez-Gil ◽  
Maria A. Herrera-Vega ◽  
F. Alberto Abreu-Grobois ◽  
Ana Roque
Keyword(s):  
Brine Shrimp ◽  
Artemia Franciscana ◽  
Artemia Nauplii ◽  
Bacterial Uptake

ABSTRACT Two groups of nauplii from the brine shrimp (Artemia franciscana) were enriched with different bacteria, and the dynamics of bacterial uptake by the nauplii were observed. This study showed that the efficiency of Artemia nauplii in bioencapsulating bacteria strongly depends on the type of bacteria used, time of exposure, and status (live or dead) of the bacteria.

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