Antarctic Streptomyces strains (A) (IMAGE) Escuela Superior Politecnica del Litoral Caption Antifungal effects of the extracts, shown by a reduction in the size of Fusarium oxysporum colonies (B). Credit Jeffrey Vargas/ESPOL Usage Restrictions without restriction License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.