Powdery mildew of plants of the family Crassulaceae in Belarus: taxonomic composition of pathogens and their hosts

Authors

  • Аlexander K. Khramtsov Belarusian State University, 4 Niezaliezhnasci Avenue, Minsk 220030, Belarus
  • Svetlana G. Sidorova Belarusian State University, 4 Niezaliezhnasci Avenue, Minsk 220030, Belarus

Keywords:

powdery mildew, Erysiphe, Golovinomyces, Pseudoidium, Crassulaceae, anamorph, teleomorph, host plant, mycobiota, Belarus
Supporting Agencies
The work was carried out within the framework of the state programme of scientific research «Natural resources and environment» (subprogramme «Biodiversity, bioresources, ecology», assignment 10.2.02 «Problems of biological invasions and parasitic threats in natural and anthropogenically transformed ecosystems», research work «Invasive phytopathogenic fungi, fungi-like organisms and invertebrate animals on cultivated and closely related wild plants: status in communities, distribution, diagnostics» (state registration No. 20211704)). The authors express their gratitude to fellow collectors for the material provided for analysis and to PhD (biology) V. N. Tikhomirov for help in identifying the plants.

Abstract

It was established that in Belarus powdery mildew on introduced plants of the family Crassulaceae (Сrassula ovata, Hylotelephium maximum, H. × mottramianum, Kalanchoe blossfeldiana, K. daigremontiana, K. laciniata, Phedimus sp. and Ph. spurius) both when grown in open ground and in year-round indoor cultivation is caused by the alien fungi Erysiphe sedi, Golovinomyces orontii and Pseudoidium kalanchoes. The morphological characteristics of the fungus P. kalanchoes based on the results of studying its samples collected in Belarus are presented for the first time. It was identified that the fungi E. sedi and G. orontii have expanded their range of hosts: three new species of feeding plants of the family Crassulaceae (K. blossfeldiana, K. daigremontiana and Phedimus sp.) were discovered.

Author Biographies

  • Аlexander K. Khramtsov, Belarusian State University, 4 Niezaliezhnasci Avenue, Minsk 220030, Belarus

    PhD (biology), docent; associate professor at the department of botany, faculty of biology

  • Svetlana G. Sidorova, Belarusian State University, 4 Niezaliezhnasci Avenue, Minsk 220030, Belarus

    PhD (biology), docent; head of the department of botany, faculty of biology

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Published

2025-11-05

Issue

No. 2 (2025): Experimental Biology and Biotechnology

Section

Biodiversity

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Copyright (c) 2025 Experimental Biology and Biotechnology

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How to Cite

Khramtsov А. K., & Sidorova, S. G. (2025). Powdery mildew of plants of the family Crassulaceae in Belarus: taxonomic composition of pathogens and their hosts. Experimental Biology and Biotechnology, 2, 66-72. https://doi.org/10.33581/2957-5060-2025-2-%p