Библиографическое описание:Fungal microbiome biodiversity in Larix sibirica Ledeb. needles under biotic and technogenic stress in the Arctic : научное издание / Ksenia A. Miroshnikova, Yulia A. Litovka, Anton A. Timofeev, Igor N. Pavlov. - Текст : непосредственный // Acta Biologica Sibirica. - 2025. - № 11. - P. 1477-1498. - This study was conducted as part of the following projects funded by the Ministry of Science and Higher Education of the Russian Federation: "Genomic, Population, and Metagenomic Studies of Forest Biocenoses. Taxonomic and Phylogenetic Analysis of Plant Communities in Forest Ecosystems" (FWES-2025-0015); "Diseases and Pests of Major Forest-Forming and Economically Important Agricultural Plants in Russia under Global Environmental Changes" (FWES-2024-0029); and "The Influence of Structural, Dynamic, and Optical Characteristics of Chloroplasts on Agricultural Plant Productivity" (FWES-2024-0032). - ISSN 2412-1908, DOI 10.5281/zenodo.17983023.
Аннотация:Biodiversity plays a crucial role in maintaining the stability of both ecosystems (biocenoses) and individual trees, as it enhances resistance to biotic and abiotic stressors. This study focuses on the phyllosphere fungal communities of Larix sibirica Ledeb. and their role in host resilience under combined stresses from the root pathogen Porodaedalea niemelaei M. Fisch. and technogenic pollution. Samples were collected from four groups of trees: infected with the root pathogenic fungus P. niemelaei, exposed only to technogenic pollution, subjected to both P. niemelaei infection and technogenic pollution, and control trees, which were neither infected nor affected by pollution. DNA was amplified, sequenced, and analyzed using Illumina sequencing technology, yielding 598,891 raw ITS sequences. Varying degrees of larch needle necrosis were observed across the groups, likely influenced by different microbial genera under specific environmental conditions. In samples infected with P. niemelaei, Fusarium and Alternaria dominated, whereas in the group exposed to both P. niemelaei and technogenic pollution, Valsa and Cytospora were the most represented. Notably, the latter group also exhibited a reduced number of unique taxa compared to others, though further studies are needed to confirm statistical significance. The dominant pathogenic genera detected - Fusarium, Alternaria, Valsa, and Cytospora - likely interact with other fungi such as Exobasidium, Ophiognomonia, Sarocladium, Phomopsis, and Taphrina, exacerbating damage and altering the microbiome, particularly under pollution-induced stress.
Издательство:Алтайский государственный университет, Барнаул
Источник:Acta Biologica Sibirica
Выпуск:№ 11
Номера страниц:1477-1498
Держатель оригинала документа:Federal Research Center “Krasnoyarsk Science Center”, Siberian Branch of the Russian Academy of Sciences, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Reshetnev Siberian State University of Science and Technology, Sukachev Institute of Forest of the Federal Research Center “Krasnoyarsk Science Center SB RAS”
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