Activity of an autolytic N-acetylmuramidase during sphere-rod morphogenesis in Arthrobacter crystallopoietes

Activity of an autolytic N-acetylmuramidase during sphere-rod morphogenesis in Arthrobacter crystallopoietes.

Survival of Arthrobacter crystallopoietes during prolonged periods of extreme desiccation.

Cells of Arthrobacter crystallopoietes mixed in sand and air-dried have survived for up to 6 months after an initial period in which approximately half the cells lost their viability. Comparative survival curves have been obtained from inoculated sands maintained under CaSO(4) or P(2)O(5). Selections for more desiccation-resistant progeny capable of surviving the initial period were unsuccessfu...

Nutritional Control of Morphogenesis in Arthrobacter Crystallopietes.

Ensign, Jerald C. (University of Illinois, Urbana), and R. S. Wolfe. Nutritional control of morphogenesis in Arthrobacter crystallopoietes. J. Bacteriol. 87:924-932. 1964.-Arthrobacter crystallopoietes exhibits the cyclic, morphological variation which is a characteristic of this genus. A simple chemically defined medium was developed in which this organism is restricted to growth and division ...

Regulation of cyclic AMP levels in Arthrobacter crystallopoietes and a morphogenetic mutant.

The extracellular levels of cyclic AMP (cAMP), cAMP phosphodiesterase activity, and adenylate cyclase activity were measured at various intervals during growth and morphogenesis of Arthrobacter crystallopoietes. There was a significant rise in the extracellular cAMP level at the onset of stationary phase, and this rise coincided with a decrease in intracellular cAMP. The phosphodiesterase activ...

Solvation Force in Hard Ellipsoid Molecular Liquids with Rod-Sphere and Rod- Surface Interactions

In previous work, one of us calculated the Solvation force of hard ellipsoid fluid with hard Gaussian overlap potential using hard needle wall interaction and non-linear equation proposed by Grimson- Rickyazen. In present work, using density functional theory and extended restricted orientation model, the solvation force of hard ellipsoid fluid in presence of more realistic rod- sphere and rod-...