A new name for an old problem-<i>Colletotrichum cigarro</i> is the cause of St John's wilt of <i>Hypericum perforatum</i>.

ABSTRACT: A major problem for St John's wort (Hypericum perforatum) is St John's wilt, which can lead to reduced crop yields and even complete crop losses. In the past, the pathogen was referred to as Colletotrichum gloeosporioides or occasionally as Colletotrichum cf. gloeosporioides based on morphology. Although a strain from this host had been re-identified as C. cigarro in taxonomic studies, there is uncertainty about the identity of the St John's wilt pathogen, which is generally still addressed as C. gloeosporioides in applied science. In a multi-locus [internal transcribed spacer (ITS), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), actin (ACT), and glutamine synthetase (GS)] analysis of the C. gloeosporioides species complex, all isolates o

SUBMITTER: Kreth LS 

PROVIDER: S-EPMC11799269 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature