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New Record of Rust Disease Caused by Puccinia oxalidis on Oxalis latifolia from India
Rajnish Kumar Verma, Ajay Kumar Gautam, Ankit Singh, Shubhi Avasthi, Indu Bhushan Prasher, Mohan Chandra Nautiyal, Harpreet Singh
MycoAsia 2020/01.
https://doi.org/10.59265/mycoasia.2020-01
Abstract
A severe rust infection caused by Puccinia oxalidis was observed on Oxalis corniculata (Oxalidaceae) in Himachal Pradesh and Chandigarh, as well as on O. latifolia, known as garden pink-sorrel, in Uttarakhand, northern India. Detailed morphological examination of the diseased leaf samples confirmed the identity of the pathogen. This paper provides a taxonomic account of Puccinia oxalidis, describing rust symptoms on the host plants and offering a taxonomic key for the identification of Puccinia species reported from Oxalis species. Additionally, the global host range and worldwide distribution of P. oxalidis are discussed. This study represents the first detailed taxonomic account of P. oxalidis on Oxalis corniculata from Himachal Pradesh and Chandigarh in northern India. Furthermore, it presents a new record of P. oxalidis from O. latifolia in India.
Plain Language Summary
A severe rust fungus, Puccinia oxalidis, was found infecting two types of sorrel plants (Oxalis) in northern India. Researchers confirmed the fungus’s identity by studying diseased leaves from Himachal Pradesh, Chandigarh, and Uttarakhand. This study provides a detailed description of the rust and its symptoms on the plants. It also offers a guide to identify different rust species on Oxalis and discusses the fungus’s global distribution. This is the first detailed report of this fungus on Oxalis corniculata from these regions and marks the first-ever discovery of this rust on garden pink-sorrel in India.
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