Accession Number : AD0457856


Title :   GREENHOUSE TESTS TO COMPARE EUROPEAN AND BELTSVILLE ISOLATES OF PERONOSPORA TABACINA


Corporate Author : ARMY BIOLOGICAL LABS FREDERICK MD


Personal Author(s) : Wuest, Paul J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/457856.pdf


Report Date : Feb 1965


Pagination or Media Count : 19


Abstract : Of the tobaccos used to differentiate a European and the Beltsville isolate of Peronospora tabacina, sporulation occurred on Nicotiana goodspeedii with the European but not with the Beltsville isolate. This situation was reversed on Bel 62-502-1 (N. tabacum selection). Watersoluble germination inhibitors are present in both fungus isolates. Germination of the two isolates in response to temperature is similar. The European may sporulate more profusely on a susceptible host than does the Beltsville isolate; it also has a narrower temperature range for sporulation.


Descriptors :   *FUNGI , *PLANTS(BOTANY) , CULTURE MEDIA , PATHOLOGY , GROWTH(PHYSIOLOGY) , SPORES , TEMPERATURE , ENVIRONMENTAL TESTS


Subject Categories : Biology


Distribution Statement : APPROVED FOR PUBLIC RELEASE