dihydrostreptomycin: antibiotic consisting of a hydrogenated form of streptomycin; used against tuberculosis and tularemia and Gram-negative organisms
antibiotic: a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections
blastocladiales: fungi that carry out asexual reproduction by thick-walled resting spores that produce zoospores upon germination; sometimes placed in class Oomycetes