Dynamics of seedling growth acclimation towards altered light conditions can be quantified via GROWSCREEN: a setup and procedure designed for rapid optical phenotyping of different plant species.

Using a novel setup, we assessed how fast growth of Nicotiana tabacum seedlings responds to alterations in the light regime and investigated whether starch-free mutants of Arabidopsis thaliana show decreased growth potential at an early developmental stage. Leaf area and relative growth rate were measured based on pictures from a camera automatically placed above an array of 120 seedlings. Detection of total seedling leaf area was performed via global segmentation of colour images for preset thresholds of the parameters hue, saturation and value.

Ammonium urate nephrolithiasis in a variant of Bartter's syndrome with intact renal tubular function.

In two patients with Bartter's syndrome proximal tubular function and distal chloride reabsorption were intact on admission; however, chloride reabsorption and distal tubular acidifying capacity decreased in one patient over a period of 10 years. Renal prostaglandin E excretion and urinary and plasma uric acid were in the normal range, but urinary ammonium was significantly elevated during controlled diet. One patient developed ammonium urate nephrolithiasis.

Prolonged infusion of Panax ginseng saponins into the rat does not alter the chemical and kinetic profile of hormones from the posterior pituitary.

The effect of prolonged administration (i.v.) of commercially available Panax ginseng extract (PGE) on the kinetic profile of the hormones from the posterior pituitary (PP) was studied in male Wistar rats.

tert-Butylbicycloortho[3H]benzoate (3H-TBOB) toxicokinetics and disposition in rats.

1. Toxicokinetics of tert-butylbicycloortho[3H]benzoate (3H-TBOB) administered into the right atrium of rat heart can be described by the biexponential equation: ct = Ae-1.6t + Be-0.

Impact of ether anesthesia on the hypophyseal content of oxytocin neurophysin I and II: a comparative study with ketamine in the rat.

The effect of anesthetic stress on the major hormones of the posterior pituitary (PP), such as oxytocin (OT), oxytocin-neurophysin (OTNP-I) and its metabolic product, OTNP-II, was studied. Rats were treated with either a combination of atropine (0.87 mg/kg) and diphenylhydantoin (85 mg/kg) and then anesthetized with ketamine (42 mg/kg) or were directly anesthetized with diethyl-ether, and then killed.