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Streptomyces costaricanus sp. nov., Isolated from Nematode-Suppressive Soil

¹ Department of Plant Pathology, College of Food and Natural Resources, University of Massachusetts, Amherst, Massachusetts 01003
² Department of Plant Pathology and Mass Spectrometry Facility, College of Food and Natural Resources, University of Massachusetts, Amherst, Massachusetts 01003

^* Corresponding author.

ABSTRACT

A new bacterial strain, strain CR-43^T (T = type strain), which was isolated from tropical soil and was previously shown to have antinematodal and antibiotic properties, is described. The name Streptomyces costaricanus is proposed for this organism. The generic placement of strain CR-43^T was based on its typical morphology, its production of ll-diaminopimelic acid, and its fatty acid composition. To clarify the taxonomic position of strain CR-43^T, it was compared with the type strains of similar Streptomyces species. The results of a number of biochemical tests and a profile analysis of the hydrolyzable fatty acids indicated that CR-43^T differs from previously described species. Strain CR-43 (= ATCC 55274 = NRRL B-16897) is the type strain of S. costaricanus sp. nov.