GABA, 5-HT and amino acids in the rotifers Brachionus plicatilis and Brachionus rotundiformis

Gallardo, Wenresti G.; Hagiwara, Atsushi; Hara, Kenji; Soyano, Kiyoshi; Snell, Terry W.

doi:10.1016/s1095-6433(00)00266-x

Cited by 23 publications

(8 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…GABA treatment for more than 24 h before enrichment may result in a greater effect on rotifer reproduction but keeping rotifers at high density for longer may diminish survival. The positive effect of GABA on rotifer reproduction supports our recent findings that GABA, along with 5‐HT (serotonin) and other amino acids are present and bioactive in rotifers (Gallardo, Hagiwara, Hara, Soyano & Snell 2000b).…”

Section: Discussionsupporting

confidence: 86%

Use of GABA to enhance rotifer reproduction in enrichment culture

Gallardo

Hagiwara

Snell

2001

Aquaculture Research

View full text Add to dashboard Cite

Gamma-aminobutyric acid (GABA) has been shown to enhance the reproduction of the rotifer Brachionus plicatilis Muller in stressful culture conditions. During the enrichment of rotifers for feeding to marine ®sh larvae, they are usually stressed as a result of exposure to different marine oils and high population densities. This typically results in decreased rotifer survival, reproduction and swimming activity. In the present study, we used GABA to increase rotifer reproduction and the swimming activity of rotifers in enrichment cultures. GABA treatment 24 h before high density enrichment enhanced reproduction during enrichment culture, but not when carried out simultaneously with enrichment. Swimming activity was not signi®cantly affected by GABA treatment 24 h before or simultaneously with nutrient enrichment.

show abstract

Section: Discussionsupporting

confidence: 86%

Use of GABA to enhance rotifer reproduction in enrichment culture

Gallardo

Hagiwara

Snell

2001

Aquaculture Research

View full text Add to dashboard Cite

show abstract

“…However, it has been recently demonstrated that common invertebrate hormones are also present in rotifers (Gallardo et al, 2000a). Serotonin (5-HT) influences mictic female production in B. plicatilis (Gallardo et al, 2000b), suggesting that hormonal activity in combination with external mixis stimuli affects mictic female production.…”

Section: Exogenous and Endogenous Factors Modifying The Mixis Responsementioning

confidence: 99%

Diapause in Monogonont Rotifers

Schröder

2005

Hydrobiologia

View full text Add to dashboard Cite

show abstract

“…Thus MIP likely acts an important role in steroidogenesis, probably by binding to a membrane receptor that triggers a signal transduction. As the rotifer signal transduction molecules were through to be similar to hormones characterized in other animals, this led to an examination of several animal hormones for their effect on the rotifer B. plicatilis [6][7][8][9][10]. These authors investigated the effects of vertebrate growth hormone, human chorionic gonadotropin, 17β-estradiol, and triiodothyronine, as well as the insect steroid 20-hydroxyecdysone, 5-hydroxytryptamine (5-HT or serotonin) and gamma aminobutyric acid (GABA) and juvenile hormone on rotifer sexual female production and body size.…”

Section: Resultsmentioning

confidence: 99%

Effects of Myostatin Prodomains on the Reproduction of Rotifer Brachionus rotundiformis

Jo¹,

Jin²

2012

Journal of Life Science

View full text Add to dashboard Cite

Myostatin (MSTN), a member of the transforming growth factor (TGF)-beta family, is a potent negative regulator of skeletal muscle growth and maintenance. The MSTN prodomain inhibits MSTN biological activity. The rotifer Brachionus rotundiformis is an excellent primary live feed for fish larvae in aquaculture; however, it is not known whether the rotifer expresses MSTN and the MSTN prodomain along with its activity. The objective of this study was to examine the effects of recombinant MSTN prodomains. Individual cultures of the rotifer B. rotundiformis were carried out to determine the effect of recombinant MSTN prodomains (pMALc2x-poMSTNpro and pMALc2x-sMSTNpro) on the pre-reproductive phase, reproductive phase, post-reproductive phase, offspring, lifespan, fecundity, and male ratio. In addition, a population culture of the rotifer was performed to confirm the effects of pMALc2x-poMSTNpro and pMALc2x-sMSTNpro on population growth. The results showed that the rotifer treated with pMALc2x-pMSTNpro had a reduced pre-reproductive phase at higher concentrations (1, 2, and 4 μg/ml) compared to the non-treated control group. Moreover, the pMALc2x-sMSTNpro treated rotifer effectively decreased the pre-reproductive phase at a lower concentration (0.25 μg/ml) compared to the pMALc2x-pMSTNpro treated and control group. Interestingly, pMALc2x-poMSTNpro and pMALc2x-sMSTNpro significantly increased the population of B. rotundiformis.

show abstract

GABA, 5-HT and amino acids in the rotifers Brachionus plicatilis and Brachionus rotundiformis

Cited by 23 publications

References 19 publications

Use of GABA to enhance rotifer reproduction in enrichment culture

Use of GABA to enhance rotifer reproduction in enrichment culture

Diapause in Monogonont Rotifers

Effects of Myostatin Prodomains on the Reproduction of Rotifer Brachionus rotundiformis

Contact Info

Product

Resources

About