Identification and Pathogenicity of Species from Herbaceous Plants on Grassland in Qiaojia County, China

Overview

Journal Microorganisms

Date 2025 Jan 25

PMID 39858884

Authors

Yanzhu Gao

Zhixiao Zhang

Mei Ji

Sangzi Ze

Haodong Wang

Bin Yang

Lianrong Hu

Ning Zhao

Affiliations

Soon will be listed here.

Abstract

The species is an important plant pathogen that can cause plant diseases in grassland, leading to the degradation of grassland quality. However, the morphology of is greatly affected by environmental factors, which makes it difficult to identify its species. In addition, the pathogenic ability of different species in plants has not been fully studied. In this study, isolates were obtained from grassland herbaceous plants via tissue separation. Through morphological means and based on ITS, , and gene sequences, we compared and constructed polygenic phylogenetic trees to classify and identify the species. In addition, the pathogenicity of different species was also analyzed. The results showed that a total of 24 strains were successfully isolated from grassland, from which ten species were identified: , , , , , etc. and were included in four complexes: species complex (FIESC), species complex (FOSC), species complex (FTSC), and species complex (FSAMSC). Pathogenicity tests demonstrated that except for QJ5211, QJ203, and QJ1662, other species had different degrees of pathogenic ability. This is the first study that discusses the effect of on grassland disease control in this area. This study further provides clear pathogen information for the prevention and control of grassland diseases.

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