HE gene A , in maize was first reported, with its mutant allele a,, by EMERSON (1918, 1921). In these reports and later publications by EMERSON and ANDERSON (1932) and LAUGHNAN (1948) the A , allele found in North American races was shown to be necessary for the production of anthocyanin pigments in various tissues of the corn plant. With the complementary genes A,, B, Pl, and R' or r', A , pro...

Polyhydroxyalkanoates (PHAs) are a family of biopolyesters accumulated by a variety of microorganisms as carbon and energy storage under starvation conditions. We focused on marine purple non-sulfur photosynthetic bacteria as host microorganisms for PHA production and developed a method for their isolation from natural seawater. To identify novel PHA-producing marine purple non-sulfur photosynt...

Pigmented potato cultivars were ranked by a consumer panel for overall acceptance, and acceptance of aroma, appearance, and flavor. Potatoes were analyzed for total phenolics, anthocyanins and carotenoids. Concentrations of total phenolics in yellow and purple potato cultivars were 2-fold greater (P < 0.001) than in the white cultivar. Anthocyanins were low to non-detectable in white and yellow...

This study set out to determine the distribution of sulfur compounds and saponin metabolites in different parts of garlic cloves. Three fractions from purple and white garlic ecotypes were obtained: the tunic (SS), internal (IS) and external (ES) parts of the clove. Liquid Chromatography coupled to High Resolution Mass spectrometry (LC-HRMS), together with bioinformatics including Principal Com...

scales per 100 leaves varied from 3.3 to 8.7. Scales containing active forms of Aphytis numbered in excess of 18 per 100 healthy scales each month, and in one month were as high as 183 per 100 healthy scales. These figures demonstrate that Aphytis was active during each of the 15 months and present in sufficient numbers to hold purple scale at low level regardless of weather fluctuations. This ...

Purple urine bag syndrome is an uncommon but particularly striking phenomenon observed in people with urinary catheters and co-existent urinary tract infections. A chemical reaction between plastic and certain bacterial enzymes results in an intense purple urine color. We report a 72 year-old male with a cystostomy. A purple coloration of his urinary drainage bag and tubing was noted in the con...

A rapid test is described which distinguishes enterococci from other group D streptococci in 8 to 24 h by use of a medium containing brain heart infusion agar, NaCl, dextrose, and bromocresol purple.

A thermophilic photosynthetic purple bacterium was isolated from the waters of a hot spring in Yellowstone National Park, Wyoming. The organism differs from all known purple bacteria in that it grows optimally at a temperature of about 50 degrees C. The isolate contains bacteriochlorophyll a and grows autotrophically, oxidizing sulfide to elemental sulfur which is then stored as globules inside...