Identification and Pathogenicity of Species Associated with Leaf Spot Disease in Northern Thailand

Overview

Journal Plants (Basel)

Date 2022 Jun 10

PMID 35684217

Authors

Patchareeya Withee

Sukanya Haituk

Chanokned Senwanna

Anuruddha Karunarathna

Nisachon Tamakaew

Parichad Pakdeeniti

Nakarin Suwannarach

Jaturong Kumla

Piyawan Suttiprapan

Paul W J Taylor

Milan C Samarakoon

Ratchadawan Cheewangkoon

Affiliations

Soon will be listed here.

Abstract

Species of that are reported as plant pathogens and cause leaf spot or leaf blight have been reported on many commercial crops worldwide. In 2019, during a survey of fungi causing leaf spots on plants in Chiang Mai and Mae Hong Son provinces, northern Thailand, 16 isolates from 14 host species across nine plant families were collected. A new species sp. nov. was identified based on morphology and concatenated (ITS, , , and ) phylogeny. Further, and represented novel geographic records to Thailand, while represented a novel host record ( sp., sp., sp.). These species were confirmed to be the causal agents of the leaf spot disease through pathogenicity assay. Furthermore, cross pathogenicity tests on L., L., (L.) Merr., and (Jacq.) Schott revealed multiple host ranges for these pathogens. Further research is required into the host-pathogen relationship of species that cause leaf spot and their management. Biotic and abiotic stresses caused by climate change may affect plant health and disease susceptibility. Hence, proper identification and monitoring of fungal communities in the environment are important to understand emerging diseases and for implementation of disease management strategies.

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