Results 131 to 140 of about 1,270 (163)

The toxicity of carbofuran to the freshwater rotifer, Philodina roseola

Ecotoxicology, 2015
In this study, the effects of exposing the rotifer Philodina roseola to the pesticide carbofuran were investigated. Its range of sensitivity to potassium dichromate, the acute toxicity of active ingredient carbofuran and of carbofuran dosed as its commercial form, Furadan(®) 350 SC were determined. Chronic toxicity of carbofuran dosed as Furadan(®) 350
Raquel Aparecida Moreira, Adrislaine da Silva Mansano, Odete Rocha   +2 more
exaly   +4 more sources

Freshwater toxicity testing using rehydratedPhilodinasp. (Rotifera) as test animals

Environmental Toxicology, 2017
Rotifers have become widely used in aquatic toxicology as a rapid screening test for toxicity. The commercial availability of diapausing embryos (cysts) have facilitated their popularity because test animals can be obtained without having to master the details of culturing.
Terry W Snell
exaly   +4 more sources

Studies on the survival of the rotifer philodina after freezing and thawing

Cryobiology, 1967
Summary The survival of the rotifer Philodina after freezing and thawing has been examined under a variety of experimental conditions. Particular emphasis was placed on obtaining maximum survival by employing the most advantageous combination of protective additive concentration and cooling rate.
James K Koehler
exaly   +3 more sources

Fine structure of the female genital apparatus of Philodina (Rotifera, Bdelloidea)

Zoomorphology, 1982
The organization of the female genital apparatus of the bdelloid rotifer Philodina roseola was analyzed by light and electron microscopy. It differs from that of the monogononts in several respects: the gonad is paired; in each gonad, the follicular layer completely surrounds the syncytial vitellarium and the cluster of ovocytes; the cytoplasmic ...
Claudia Ricci
exaly   +3 more sources

Group Survival Value for Philodina Rosola, A Rotifer

Ecology, 1949
W C Allee
exaly   +3 more sources

Enhanced flocculation of two bioflocculation-producing bacteria by secretion of Philodina erythrophthalma.

Water Research, 2017
Bdelloid rotifer are reported to play a promoting role in microbial aggregation and floc formation in activated sludge systems; however, the mechanisms involved in this process are unclear. This study explores the effect of a rotifer secretion (RS) from the species Philodina erythrophthalma on the flocculation and growth of two bioflocculation ...
G. Ding, Xiaowei Li, W. Lin, Y. Kimochi, R. Sudo   +4 more
semanticscholar   +3 more sources

Preliminary investigation of effects of copper on a terrestrial population of the antarctic rotifer Philodina sp.

Chemosphere, 2022
Terrestrial microinvertebrates in Antarctica are potentially exposed to contaminants due to the concentration of human activity on ice-free areas of the continent.
J. McCarthy, S. Wallace, Kathryn E Brown, C. King, U. Nielsen, G. Allinson, S. Reichman   +6 more
semanticscholar   +4 more sources

Temperature and the toxicity of chromate and arsenate to the rotifer, Philodina roseola

Water Research, 1973
Wesley O Pipes
exaly   +3 more sources

α-Tocopherol increases lifespan in the rotifer Philodina

Experimental Gerontology, 1980
Abstract The addition of α-tocopherol (vitamin E) to the culture medium at a concentration of 10 −4 was found to significantly extend the average lifespan of the rotifer Philodina . The oily α-tocopherol was solubilized in Tween-80 so that it would dissolve in the aqueous culture medium.
H. Enesco, C. Verdone-smith
semanticscholar   +3 more sources

Functional morphology of the muscles in Philodina sp. (Rotifera: Bdelloidea)

Hydrobiologia, 2000
Whole-mounts of Philodina sp., a bdelloid rotifer, were stained with fluorescent-labeled phalloidin to visualize the musculature. Several different muscle types were identified including incomplete circular bands, coronal retractors and foot retractors.
R. Hochberg, M. Litvaitis
semanticscholar   +2 more sources