Streptomyces hayashii
{{Short description|Species of bacterium}}
{{speciesbox
| taxon = Streptomyces hayashii
| authority = Vitor et al. 2023
}}
Streptomyces hayashii is a species of aerobic Gram-positive actinomycete. It was recently discovered and characterized in Brazil, along with Streptomyces hilarionis, where it has been associated with common scab, a disease that causes significant damage to potato crops worldwide.{{cite journal |last1=Vitor |first1=Lucas |last2=Amaral |first2=Danilo Trabuco |last3=Corrêa |first3=Daniele Bussioli Alves |last4=Ferreira-Tonin |first4=Mariana |last5=Lucon |first5=Emanuel Torres |last6=Appy |first6=Mariana Pereira |last7=Tomaseto |first7=Alex Augusto |last8=Destéfano |first8=Suzete Aparecida Lanza |title=Streptomyces hilarionis sp. nov. and Streptomyces hayashii sp. nov., two new strains associated with potato scab in Brazil |journal=International Journal of Systematic and Evolutionary Microbiology |date=15 June 2023 |volume=73 |issue=6 |doi=10.1099/ijsem.0.005916 |pmid=37319004 |url=https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.005916 |issn=1466-5034|url-access=subscription }}{{cite journal |last1=Destéfano |first1=Suzete Aparecida Lanza |last2=Vitor |first2=Lucas |last3=Corrêa |first3=Daniele Bussioli Alves |last4=Tomaseto |first4=Alex Augusto |last5=Monteiro |first5=Regiane Pinheiro dos Santos |title=Streptomyces spp.associadas à sarna da batata |journal=Revisão Anual de Patologia de Plantas |date=2021 |volume=27 |issue=1 |pages=91–117 |doi=10.31976/0104-038321v270005 |url=https://sbfitopatologia.org.br/admin/files/papers/file_ImWbl1mrJe9c.pdf}} The type strain is IBSBF 2953T(other culture collections: CBMAI 2675T=ICMP 24301T=MUM 22.68T).