𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effects of solar radiation on photoorientation, motility and pigmentation in a freshwater Peridinium

✍ Scribed by Donat-P. Häder; Maria Häder; Shi-Mei Liu; Wolfram Ullrich

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
541 KB
Volume
23
Category
Article
ISSN
0303-2647

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Effects of UV radiation on motility, pho
Effects of UV radiation on motility, photo-orientation and pigmentation in a freshwater Cryptomonas
✍ Donat-P. Häder; Maria Häder 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 638 KB

The effects of UV radiation on photo-orientation, motility and pigmentation have been studied in a freshwater Cryptomonas species. The cells show a pronounced diaphototactic orientation which is affected by UV radiation at 50 mW m-2 within about 90 min. Both the average velocity of the swimming cell

Effects of UV-A Radiation on Desmodesmus
Effects of UV-A Radiation on Desmodesmus armatus: Changes in Growth Rate, Pigment Content and Morphological Appearance
✍ Károly Pálffy; Lajos Vörös 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 180 KB

## Abstract Laboratory cultures of __Desmodesmus armatus__ (R. Chod.) Hegew. were grown under different levels of photosynthetically active radiation (PAR) supplemented with 3.75 mW · cm^–2^ UV‐A radiation. Growth rate was monitored daily, chlorophyl‐__a__ concentration, total carotenoid content, c

In vitro effect of pulsed 900 MHz GSM ra
In vitro effect of pulsed 900 MHz GSM radiation on mitochondrial membrane potential and motility of human spermatozoa
✍ Nadia Falzone; Carin Huyser; Francois Fourie; Tim Toivo; Dariusz Leszczynski; Da 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 227 KB 👁 2 views

## Abstract Ejaculated, density purified, human spermatozoa were exposed to pulsed 900 MHz GSM mobile phone radiation at two specific absorption rate levels (SAR 2.0 and 5.7 W/kg) and compared with controls over time. Change in sperm mitochondrial membrane potential was analysed using flow cytometr

Differential effects of thyroxine on met
Differential effects of thyroxine on metabolic enzymes and other macromolecules in a freshwater teleost
✍ Tripathi, G. ;Verma, Priyanka 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 125 KB

The effects of thyroxine (T(4)) on citrate synthase (CS), glucose 6-phosphate dehydrogenase (G6-PDH), lactate dehydrogenase (LDH), DNA, RNA, and protein of various tissues were studied to elucidate the hormonal control of metabolism in a freshwater catfish, Clarias batrachus. T(4) did not produce an

Effects of germanium on the morphology o
Effects of germanium on the morphology of silica deposition in a freshwater sponge
✍ Tracy L. Simpson; Lawrence M. Refolo; Michele E. Kaby 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 832 KB

## Abstract The effect of germanium on the secretion of siliceous spicules by the freshwater sponge __Spongilla lacustris__ was investigated by exposing germinating and hatching gemmules to varying concentrations of germanium (Ge) in the presence of silicon (Si). Results were analyzed quantitativel