Accession Number : AD0437964


Title :   AMINO ACID COMPOSITION OF UREDOSPORES OF PUCCINIA GRAMINIS VAR. TRITICI


Corporate Author : ARMY BIOLOGICAL LABS FREDERICK MD


Personal Author(s) : Stefanye, David ; Bromfield, Kenneth R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/437964.pdf


Report Date : Apr 1964


Pagination or Media Count : 14


Abstract : Uredospores of Puccinia graminis var. tritici (Race 56) were analyzed quantitatively for total free amino acids and ninhydrin-positive substances by ion-exchange chromatography. Extracts of these substances were obtained by leaching the spores and by re-extracting leached spores with boiling water. Thirty-five ninhydrin-positive compounds were found and identified. The leach extract differed quantitatively from the boiled extract although both contained the same 35 substances. It is proposed that the spores contain ninhydrin- positive substances coating the spore wall that are easily extracted and other ninhydrin-positive substances in the protoplasm that can be extracted only with difficulty.


Descriptors :   *SPORES , *PUCCINIA(RUSTS) , CYTOPLASM , AMINO ACIDS , CHROMATOGRAPHIC ANALYSIS , WHEAT


Subject Categories : Microbiology


Distribution Statement : APPROVED FOR PUBLIC RELEASE