Ecological structure of Dothideomycetes in the steppe ecosystems of the steppe zone of Ukraine
DOI:
https://doi.org/10.31548/dopovidi.3(109).2024.002Keywords:
Dothideomycetes, ecological structure, steppe communities, steppe zone of UkraineAbstract
The article considers the ecological structure of the Dothideomycetes and the peculiarities of its formation in conditions of steppe ecosystems of the steppe zone of Ukraine. The materials of the work were the original mycological collecting carried out within the mycological survey of this territory during 2008-2020, sporadic collections of 2021 and 2023, as well as the materials of the herbarium of the M. G. Kholodny Institute of Botany (KW). Herbarium collection and identification of the samples were performed in accordance with the generally accepted methods of cameral processing of xylotrophic, herbotrophic and coprothrophic micromycetes. As a result of our research, characteristic features of the ecological structure of the investigated mycobiota were established.
According to the substrate specificity, among the species of Dothideomycetes found in the steppe communities, herbotrophs (74 species) dominate, xylotrophs (28 species), phyllotrophs (14) and coprophiles (7) are also represented. Phytotrophic species of micromycetes develops on 120 species of vascular plants, with the largest number of micromycetes (65 species) noted on plants of the Asteraceae.
By trophic specialization, the vast majority of the considered species belong to saprotrophs (103 species), but there are also representatives of pleomorphic hemibiotrophs (20 species). Some hemibiotrophic species at the saprotrophic stage of the life cycle do not have a strict substrate limitation, just like obligate saprotrophs. Species of fungi are discussed.
A comparison of the substrate specificity of the studied species of fungi showed that in arid sandy-steppe and sagebrush-steppe plant communities, a wider distribution of herbosaprotrophic species is observed in comparison with meadow-steppe communities.
A comparative analysis of the species composition of Dothideomycetes in steppe and forest communities of the steppe zone revealed 13 general species, among which 10 species were found on different plant substrates.
The most significant ecological and biological peculiarities of the investigated mycobiota in the conditions of steppe communities of the steppe zone of Ukraine are the formation of stable consortium relationships with a considerable variety of higher plants, zonal and seasonal change of the habitats as a adaptive mechanism for the settlement of the studied species of fungi. The prospect of further research is the study of changes in the species structure of micromycetes under the conditions of anthropogenic influence in the steppe ecosystems of the steppe zone of Ukraine.
References
Onyshchenko, V.A., Andrienko, T.L. (Eds.). (2012). Phytodiversity of nature reserves and national nature parks of Ukraine. P.1. Biosphere reserves. Nature reserves. Kyiv: Phytosociocentre (in Ukrainian).
Korol'ova, O.V. (2016). Dothideomycetes of forest plants communities of the steppe zone of Ukraine. Bulletin of Taras Shevchenko National University of Kyiv. Series: Biology, 71(1), 61–66 (in Ukrainian). doi:10.17721/1728_2748.2016.71.60-65
Korolyova, O.V. (2020). Taxonomic Diversity of Dothideomycetes in the Steppe Ecosystems of the Steppe Zone of Ukraine. Ukr. ž. med. bìol. sportu, 5, 4 (26), 373-378 (in Ukrainian). doi:10.26693/jmbs05.04.373
Bruns, D.Т. (2019). The developing relationship between the study of fungal communities and community ecology theory. Fungal Ecology, 39(June 2019), 393-402. doi:10.1016/j.funeco.2018.12.009
Crous, P.W., Wingfield, M.J. (2018). Fungi infecting woody plants: emerging frontiers. Persoonia - Molecular Phylogeny and Evolution of Fungi, 40, June 2018, i-iii(3) . doi: 10.3767/persoonia.2018.40.00
Li, X., Wang, J., Zhang, Sh., Wang, H., Li, X., Li, X., & Zhang, H. (2018). Distribution of fungal endophytes in roots of Stipa krylovii across six vegetation types in grassland of northern China. Fungal Ecology, 31(February 2018), 47–53. doi:10.1016/j.funeco.2017.11.001
Han, Q., Chen, Y., Li, Z., Zhang, Z., Qin, Y., Liu, Z., Liu, G. (2024). Changes in the soil fungal communities of steppe grasslands at varying degradation levels in North China. Can J Microbiol., Mar 1;70(3), 70-85. doi: 10.1139/cjm-2023-0105. Epub 2023 Dec 14.
Borzęcka, J., Suchodolski, J., Dudek, B., Matyaszczyk, L., Spychała, C., Ogórek, R. (2022). The First Comprehensive Biodiversity Study of Culturable Fungal Communities Inhabiting Cryoconite Holes in the Werenskiold Glacier on Spitsbergen (Svalbard Archipelago, Arctic). Biology, 11(8), 1224; doi:10.3390/biology11081224
Pereira, J. S., Costa, R. R., Nagamoto, N. S., Forti, L. C., Pagnocca, F. C., Rodrigues, A. (2016). Comparative analysis of fungal communities in colonies of two leaf-cutting ant species with different substratum preferences. Fungal Ecology, 21(June 2016), 68–75. doi:10.1016/j.funeco.2016.03.004
Solis, M.J. L., Dela Cruz, Th.E., Schnittler, M., Unterseher, M. (2015). The diverse community of leaf-inhabiting fungal endophytes from Philippine natural forests reflects phylogenetic patterns of their host plant species Ficus benjamina, F. elastica and F. religiosa. Mycoscience, 57(2), 96-196. doi:10.1016/j.myc.2015.10.002
Koide, R. T., Ricks, K.D., Davis, E. R. (2017). Climate and dispersal influence the structure of leaf fungal endophyte communities of Quercus gambelii in the eastern Great Basin, USA. Fungal Ecology, 30(December 2017), 19–28. doi:10.1016/j.funeco.2017.08.002
Sheng, R., Li, K., Zhang, W., Wang, H., Liu, H., Zhu, X. (2019). Differentiations of determinants for the community compositions of bacteria, fungi, and nitrogen fixers in various steppes. Ecology and Evolution, 9(7): 1-12. doi: 10.1002/ece 3.4940 9
Johansen, R. B., Johnston, P., Mieczkowski, P., Perry, Ge.L.W., Robeson, M.S.,
Martins, F., Pereira, J.A., Bota, P., Bento, A., Baptista, P. (2016). Fungal endophyte communities in above- and belowground olive tree organs and the effect of season and geographic location on their structures. Fungal Ecology, 20(April 2016), 193–201. doi:10.1016/j.funeco.2016.01.005
Martins, F., Pereira, J.A., Bota, P., Bento, A., Baptista, P. (2016). Fungal endophyte communities in above- and belowground olive tree organs and the effect of season and geographic location on their structures. Fungal Ecology, 20: 193-201. doi: 10.1016/j.funeco.2016.01.005
Hazard, C., Gosling, P., van der Gast, C.J., Mitchell, D.T., Doohan, F. (2013). The role of local environment and geographical distance in determining community composition of arbuscular mycorrhizal fungi at the landscape scale. The ISME Journal, 7: 498-508. doi: 10.1038/ismej.2012.127 13.
Matsumura, E., Fukuda, K. (2013). A comparison of fungal endophytic community diversity in tree leaves of rural and urban temperate forests of Kanto district, eastern Japan. Fungal Biology, 117(3), 191–201. doi:10.1016/j.funbio.2013.01.007
Panelli, S., Capelli, E., Comandatore, F., Landinez-Torres, A., Granata, M.U., Tosi, S., Picco, A.M. (2017). A metagenomic-based, cross-seasonal picture of fungal consortia associated with Italian soils subjected to different agricultural managements. Fungal Ecology, 30(December 2017), 1–9. doi:10.1016/j.funeco.2017.07.005
Downloads
Additional Files
Published
Issue
Section
License
Relationship between right holders and users shall be governed by the terms of the license Creative Commons Attribution – non-commercial – Distribution On Same Conditions 4.0 international (CC BY-NC-SA 4.0):https://creativecommons.org/licenses/by-nc-sa/4.0/deed.uk
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
