Results 141 to 150 of about 565 (165)

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 E, Enesco, C, Verdone-Smith
openaire   +2 more sources

Effect of increasing salinity on the acute toxicity of a commercial endosulfan formulation to the bdelloid rotifer Philodina acuticornis odiosa

Toxicological and Environmental Chemistry, 2011
Pesticides, such as endosulfan, can enter surface waters such as lakes and rivers, potentially posing an ecological risk. Rotifers are a dominant zooplankton species in many inland freshwater lakes in Australia; such lakes can also experience increased ...
Dayanthi Nugegoda
exaly   +1 more source

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.
Rick Hochberg, Marianne Klauser Litvaitis   +1 more
openaire   +1 more source

Assessing the Performance of a Bdelloid Rotifer Philodina acuticornis odiosa Acute Toxicity Assay

Bulletin of Environmental Contamination and Toxicology, 2008
A bioassay using the bdelloid rotifer, Philodina acuticornis odiosa, was evaluated for use as a standard test method for direct toxicity assessment testing in the Australasian region. Philodina acuticornis odiosa was found to be relatively tolerant to phenol (24 h LC50, 142 mg/L).
Dayanthi Nugegoda, G Allinson
exaly   +3 more sources

Utilization of a new bdelloid rotifer (Philodina acuticornis odiosa) assay to evaluate the effect of salinity on the toxicity of chlorothalonil

Toxicological and Environmental Chemistry, 2010
Acute (24 h) toxicity tests were conducted to determine the toxicity of the fungicide chlorothalonil towards the freshwater bdelloid rotifer (Philodina acuticornis odiosa).
Dayanthi Nugegoda
exaly   +2 more sources

Curve di Popolazioni di Philodina Roseola (Rotifera Sdelloidea)

Italian Journal of Zoology, 1978
exaly   +2 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 ...
Guoji Ding, Xiaowei Li, Wei Lin, Yuzuru Kimochi, Ryuichi Sudo   +4 more
openaire   +2 more sources

Freshwater toxicity testing using rehydrated Philodina sp. (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   +2 more sources

An Ultrastructural Approach to Feeding Behaviour in Philodina Roseola and Brachionus Calyciflorus (Rotifers) II. The Oesophagus

Hydrobiologia, 1980
The structure situated in the lumen of the buccal tube, called here ‘buccal velum’, separates the buccal space from the pharyngeal space. The velum is a supple membrane-pile. Its structure resembles that of a fish-trap. The food, once ingested, cannot go back into the buccal lumen.
P. Clement, J. Amsellem, A.-M. Cornillac, A. Luciani, C. Ricci   +4 more
openaire   +1 more source

Rotifer neuropharmacology—I. cholinergic drug effects on oviposition of Philodina acuticornis (Rotifera, Aschelminthes)

Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1986
The presence of acetylcholine in the culture medium was found to result in egg retention in the bdelloid rotifer Philodina acuticornis in a dose-dependent fashion, with no other discernible physiological effect. When six to eight eggs accumulate, the animals distend, burst and die. No other cholinergic agonist has been shown to produce a similar effect.
T, Nogrady, J, Keshmirian
openaire   +2 more sources