The Origin, Growth and Significance of the Mental Scientific Apparatus and Laboratory Methods: Hygiene Movement: DR. WILLiAM A. WHITE ............ 77 A Simple Method for the Germination of Oospores Periodicals for Electrical Engineers: PROFESSOR J. of Sclerospora Graminicola: PROFESSOR MAKOTO K. McNrALY and C. D. CROSNO ......................... 81 HIURA. A Practical Flagella and Capsule Stain ...

Primers based on a conserved nucleotide binding site (NBS) found in several cloned plant disease resistance genes were used to amplify DNA fragments from the genome of common bean (Phaseolus vulgaris). Cloning and sequence analysis of these fragments uncovered eight unique classes of disease-resistance related sequences. All eight classes contained the conserved kinase 2 motif, and five classes...

We are interested in learning more about the proteome of Uromyces appendiculatus, the fungus that causes common bean rust. Knowledge of the proteins that differentiate life-cycle stages and distinguish infectious bodies such as uredospores, germlings, appressoria, and haustoria may be used to define host-pathogen interactions or serve as targets for chemical inhibition of the fungus. We have us...

Excellent preservation and new structural details can be demonstrated in rust-infected leaf tissue after high pressure freezing and freeze-fracturing. A tubular-vesicular complex was the most remarkable cytoplasmic structure obsetved in cells of tile bean rust fungus Uromyces appendiculatus var. appendiculatus during its establishment in its host Phaseolus vulgaris. In fungal ceUs undergoing in...