"Flour dust" refers to dust coming from fmely milled or othenvise processed cereal. Hypersensitivity reactions as well as irritant syrnptoms caused by flour dust constitute a well recognized occupational problem world-wide. Most data on flour dusts have been derived fiom studies on wheat (Triticum sp.) and rye (Secale cereale), and to a lesser extent on barley (Hordeum sp.) and oats (Avenea sat...

We have developed a phytochrome immunoaffinity purification procedure that yields undegraded oat (Avena sativa L., cv. Garry) phytochrome of greater than 98% purity within 2 hours when starting with a brushite-purified preparation. Immunoaffinity-purified phytochrome, except for its greater purity, is indistinguishable from conventionally purified phytochrome by gel exclusion chromatography, is...

We present a simple subtraction procedure of GDDSC as a modification of the original DSC and GDRDA methods. Genetically Directed Differential Subtraction Chain (GDDSC) is a process by which highly related genomes are compared in order to isolate tags carrying the polymorphisms. To detect specific DNA fragment (tag), we can then monitor offspring plants for efficient molecular breeding. The GDDS...