Mikhail Stepanovich Voronin

Exobasidium is a genus of fungi in the family Exobasidiaceae. The genus has a widespread distribution, especially in northern temperate regions, and contains about 50 species. Many of the species in this genus are plant pathogens that grow on Ericaceae. The comprising fungi are parasitic in nature, especially on various heath plants where they cause galls.

Exobasidium vaccinii, commonly known as “red leaf disease,” or “Azalea Gall,” is a biotrophic species of fungus that causes galls on ericaceous plant species, such as blueberry and azalea (Vaccinium and Rhododendron spp.). Exobasidium vaccinii is considered the type species of the Exobasidium genus. As a member of the Ustilagomycota, it is a basidiomycete closely related to smut fungi. Karl Wilhelm Gottlieb Leopold Fuckel first described the species in 1861 under the basionym Fusidium vaccinii, but in 1867 Mikhail Stepanovich Voronin (often cited as “Woronin”) later placed it in the genus

Synchytrium is a large genus of plant pathogens within the phylum Chytridiomycota. Species are commonly known as false rust or wart disease. Approximately 200 species are described, and all are obligate parasites of angiosperms, ferns, or mosses. Early species were mistakenly classified among the higher fungi (Ascomycota or Basidiomycota) because of their superficial similarity to the rust fungi. Anton de Bary and Mikhail S. Woronin recognized the true nature of these fungi and established the genus to accommodate Synchytrium taraxaci, which grows on dandelions, and S. succisae, which grows

Plasmodiophora brassicae is a soilborne organism that is best known for its high economic impact on Brassica oil and vegetable crops. It infects 30 different cruciferous plants, which consists of up to 16 crop species, 9 ornamentals, and 5 weeds. The fungus-like organisms on those plants causes a disease referred to as clubroot.

Plasmodiophora is a genus in class Phytomyxea. It includes the species Plasmodiophora brassicae, which causes the disease cabbage clubroot.

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Olpidium brassicae is a plant pathogen, it is a fungal obligate parasite. In 1983, the Alsike, Alberta area's clover (which is a major part of horses' diet) was struck by a fungus epidemic of Olpidium brassicae, previously not seen in Canada.

Tolyposporium is a genus of fungi belonging to the family Anthracoideaceae. The genus was described and named as Sorosporium junci by J. Schröt. in 1870, then it was republished as Tolyposporium in 1887 by Woronin ex J.Schröt. It was originally found on Juncus bufonius in Serbia. The genus has cosmopolitan distribution.

Monilinia oxycocci (Woronin) Honey, (synonym Sclerotinia oxycocci), common names cranberry cottonball, cranberry hard rot, tip blight, is a fungal infection of large cranberry (Vaccinium macrocarpon) and small cranberry (Vaccinium oxycoccos). The tips of young flowering shoots wilt before they flower. Fruit that forms on the plant can then be infected by the asexual spores traveling through the plant, causing the berries to harden, turn cottony on the inside, and dry out instead of maturing. The berries are filled with a cotton-like fungus and are generally yellowish with tan stripes or

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