Species composition and distribution of rust fungi in Zailisky Alatau (Kazakhstan)

Yelena Rakhimova,Gulnaz Sypabekkyzy,Assem Assylbek,Lyazzat Kyzmetova,E.V Banaev,Y.G Zaytseva,M.A Tomoshevich

doi:10.1051/bioconf/20202400069

Yelena Rakhimova, Gulnaz Sypabekkyzy + Show 5 more

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https://doi.org/10.1051/bioconf/20202400069

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Abstract

Mycobiota of the Zailisky Alatau includes 176 species of rust fungi, the Microbotryomycetes class has 5 species, the Pucciniomycetes class is represented with 171 species. The largest number of species is characteristic of the genera Puccinia (98 species) and Uromyces (24 species). Others genera are represented with 1-13 species. The greatest number of species of rust fungi is noted for altitudes of 1700-1900 and 1900-2100 m above sea level, what correlates with the vegetation zone of dark coniferous forests and meadows. Great aridity does not allow fungi to develop intensively in the lower foothills and steppe zone, and low temperatures and intense solar insolation inhibit the development of rust fungi in the alpine and subalpine zones. 337 plant species from 165 genera are registered as host plants. The largest number of rust fungi species is noted in the Small and Big Almaty gorges (73 and 57 species, respectively), in the Talgar and Turgen gorges (57 and 63 species, respectively). The gorges of Karakastek, Ush-Konyr, Uzyn-Kargaly, Chemolgan, Small Kemin and Oi-Karagai are characterized by an insignificant diversity of rust fungi (from 3 to 8 species), which is associated with lower humidity of these gorges.

Highlights

Rust fungi are the largest group of obligate plant pathogens and are characterized with a complex life cycle that takes place on one or more hosts
Rust fungi in the Zailisky Alatau began to be intensively studied since the 1950s
The purpose of this article was to study the diversity of rust fungi in Zailisky Alatau and their distribution depending on the habitat of the host plants, altitudinal zonality and geographical location

Summary

Introduction

Rust fungi are the largest group of obligate plant pathogens and are characterized with a complex life cycle that takes place on one or more hosts. Rust fungi in the Zailisky Alatau began to be intensively studied since the 1950s. In 1956, G.S. Nevodovsky published detailed descriptions of rust fungi in Kazakhstan, some of which were found in Zailisky Alatau [1]. The work of B.K. Kalymbetov [2], devoted to the mycobiota of Zailisky Alatau, contains information on 249 species of rust fungi, the author included species living in neighboring territories, thereby significantly overestimated the number of species. Monograph of S.A. Abiev [3] presents a list and descriptions of rust fungi parasitizing on cereals in Kazakhstan. Abiev [3] presents a list and descriptions of rust fungi parasitizing on cereals in Kazakhstan At present this information is quite outdated (especially, taxonomy of species)

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