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

J Fungi (Basel)

State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, China.

Published: July 2022

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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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9322356PMC
http://dx.doi.org/10.3390/jof8070740DOI Listing

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