Zhu H. Biocontrol mechanisms of Streptomyces sp. HU2014 against Rhizoctonia spp. caused wheat sharp eyespot

Українська версія

Thesis for the degree of Doctor of Philosophy (PhD)

State registration number

0823U101990

Thesis Registration Form

0823U101990.pdf

Applicant for

Specialization

  • 202 - Захист і карантин рослин

Specialized Academic Board

3970

Sumy National Agrarian University

Essay

Wheat sharp eyespot (WSE) is a serious disease caused by the phytopathogens Rhizoctonia cerealis and R. solani. R. cerealis has a higher pathogenicity than R. solani and is the main pathogen of WSE in China. Currently, the principal method of controlling this disease is by the use of synthetic chemical fungicides. To develop sustainable agriculture and protect the ecological environment, the biocontrol approach is a possible alternative, which uses beneficial microorganisms to control pathogens and improve plant health. Streptomyces sp. belong to these microbes and are researched in the plant protection field. However, reports on using Streptomyces sp. against R. cerealis are lacking. A new strain of Streptomyces sp. HU2014 was investigated to gain insight into the determinants of its utility as a potential biocontrol agent. The main direction of this study was to evaluate the antifungal mechanisms of HU2014 against WSE and its ability to promote plant growth.

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Research papers

Zhu H., Zhou F., Rozhkova T. Quantitive changes of enzyme activity in wheat induced by Streptomyces sp. strain HU2014. Bulletin of Sumy National Agrarian University. The series: Agronomy and Biology. 2020. Vol. 3. P. 57-62.

Zhu H., Cao Z., Rozhkova T., Hu L. Study on antifungal activity of hyphae extract of a Streptomyces strain HU2014 against four phytopathogenic fungi. Bulletin of Sumy National Agrarian University. The series: Agronomy and Biology. 2021. Vol. 3. P. 87-92.

Zhu H., Rozhkova T. Induction of wheat resistance by Streptomyces sp. HU2014 strain. Quarantine and Plant Protection. 2023. P. 38-43.

Zhu H., Rozhkova T. Allelopathic effect of metabolites produced by Streptomyces sp. HU2014 on wheat and green bristlegrass. Bulletin of Sumy National Agrarian University. The series: Agronomy and Biology. 2023. Vol. 50. P. 8-13.

Zhu H., Hu L., Hu H.-Y., Zhou F., Wang S., Wu L., Rozhkova T., Li C. Identification of a novel Streptomyces sp. strain HU2014 showing growth promotion and biocontrol effect against Rhizoctonia spp. in wheat. Plant Disease. 2023. P. 1-15.

Zhu H., Hu L., Rozhkova T., Wang X., Li C. Spectrophotometric analysis of bioactive metabolites and fermentation optimisation of Streptomyces sp. HU2014 with antifungal potential against Rhizoctonia solani. Biotechnology & Biotechnological Equipment. 2023. Vol. 37. P. 231-242.

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