Underneath the Purple Stain

New waves underneath the purple strain

Successful merging of chemical and biotechnological operations is essential to achieve cost-efficient industrialization of bio-based processes. The demonstration of the use of syngas, derived from microwave assisted pyrolysis of municipal solid waste, for the improved growth and poly-3-hydroxybutyrate production in Rhodospirillium rubrum, stands out as an example of the synergistic contribution...

Underneath the “apple-jelly”

A 44-year-old Caucasian woman presented with asymptomatic skin lesions on the trunk, arms and legs. These lesions had suddenly appeared 4 months before and have been unchanged ever since. Medical history included arterial hypertension and hypertriglyceridemia. The patient recalled an acute episode of painful subcutaneous nodules on the lower legs some years ago that disappeared with NSAID and l...

Genetic mapping of resistance to purple seed stain in PI 80837 soybean.

Purple seed stain (PSS) of soybean caused by Cercospora kikuchii is an important disease that reduces market grade and can affect seed germination and vigor. A single dominant gene was shown to confer PSS resistance in PI 80837. The objective of this research was to map the PSS resistance gene in PI 80837 using simple sequence repeat (SSR) markers. A cross was made between the PSS-susceptible c...

The Gram stain.

Ribonucleates and the Gram stain.

Salton (J. Gen. Microbiol. 30:223, 1963) summarized the evidence which demonstrates that the gram-positive cell is able to retain the crystal violet after iodine treatment because of the characteristic nature of its cell wall. This evidence is highly convincing, yet it does not explain the experiments of Henry and Stacy (Proc. Roy. Soc. London Ser. B 133:391, 1946) or of Bartholomew and Umbreit...