<i>Hemileia ritscheliae</i>, a new species of rust fungus on <i>Aristolochia</i> sp. collected from Uganda in 1943.

ABSTRACT: The genus Hemileia was established in 1869 and made famous by H. vastatrix, the agent of coffee leaf rust. This group of obligate biotrophs has grown to include more than 42 species, infecting plant hosts from 43 genera across Africa and Asia. A specimen collected in 1943 in Uganda, on the host plant Aristolochia, was identified to Hemileia sp. (BPI019726). Species identification was historically inconclusive and subsequent examinations noted that the material was insufficient. In this study, the specimen was morphologically re-examined, and partial sequences of the small subunit (18S) and large subunit (28S) of the rDNA were obtained. It was found to be sufficiently different from other species in the genus, and here described as Hemileia ritscheliae sp. nov

SUBMITTER: Bailey J 

PROVIDER: S-EPMC12486217 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature