Diversity of Species Causing Apple Bitter Rot and Glomerella Leaf Spot in China

Overview

Journal J Fungi (Basel)

Date 2022 Jul 27

PMID 35887495

Authors

Yang Chen

Dandan Fu

Wei Wang

Mark L Gleason

Rong Zhang

Xiaofei Liang

Guangyu Sun

Affiliations

Soon will be listed here.

Abstract

Bitter rot and Glomerella leaf spot (GLS) of apples, caused by species, are major diseases of apples around the world. A total of 98 isolates were obtained from apple fruits with bitter rot, and 53 isolates were obtained from leaves with leaf spot in the primary apple production regions in China. These isolates were characterized morphologically, and five gene regions (, , , -1 and 2) were sequenced for each isolate. A phylogenetic analysis, combined with a comparison of the morphological, cultural and pathogenic characters, sorted bitter rot isolates into six species: , , sensu stricto, , and one new species, Dandan Fu & G.Y. Sun. Among these, was the predominant pathogen associated with bitter rot. Isolates from leaf spot were identified as two species, and . This is the first report of as an apple bitter rot pathogen worldwide, and the results provide important insights into the diversity of species in China.

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