Different Degrees of Niche Differentiation for Bacteria, Fungi, and Myxomycetes Within an Elevational Transect in the German Alps

Dahl, Mathilde Borg; Brejnrod, Asker; Russel, Jakob; Sørensen, Søren J.; Schnittler, Martin

doi:10.1007/s00248-019-01347-1

Cited by 19 publications

(7 citation statements)

References 113 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite the large range of the study gradient, the differences in microbial community composition were not due to the geographical distance between sites per see, but rather due to the edaphic and floristic (previously reported, Weigel et al, 2019 and Table 1) differences between them. Furthermore, a similar environmental response between bacteria/archaea and fungi was observed (correlation in community similarities), which is in line with the well-known strong link between plants and microbes, especially in systems dominated by symbiotic relationships as ours (Bahram et al, 2015;Berg et al, 2016) and their interlinked dependence on nutrient availability ( Čapek et al, 2018) as also indicated from the clear association between vegetation variance and the availability of especially NH 4 -N. Thus, in line with our first hypothesis, our results support prior observations, that the plant community composition is among the main drivers for bacterial/archaeal and fungal soil community assembly in a temperate (alpine) forest gradient (Borg Dahl et al, 2019). Likewise, Choma et al (2020) found a strong and rapid change in the bacterial community composition in a beech forest as a result of an experimental change in pH of ca.…”

Section: Strong Interlinkage Between Microbiome Vegetation and Soil P...supporting

confidence: 91%

Warmer winters result in reshaping of the European beech forest soil microbiome (bacteria, archaea and fungi)—With potential implications for ecosystem functioning

Dahl

Kreyling

Petters

et al. 2023

Environmental Microbiology

Self Cite

View full text Add to dashboard Cite

In temperate regions, climate warming alters temperature and precipitation regimes. During winter, a decline in insulating snow cover changes the soil environment, where especially frost exposure can have severe implications for soil microorganisms and subsequently for soil nutrient dynamics. Here, we investigated winter climate change responses in European beech forests soil microbiome. Nine study sites with each three treatments (snow exclusion, insolation, and ambient) were investigated. Long-term adaptation to average climate was explored by comparing across sites. Triplicated treatment plots were used to evaluate short-term (one single winter) responses. Community profiles of bacteria, archaea and fungi were created using amplicon sequencing. Correlations between the microbiome, vegetation and soil physicochemical properties were found. We identify core members of the forest-microbiome and link them to key processes, for example, mycorrhizal symbiont and specialized beech wood degraders (fungi) and nitrogen cycling (bacteria, archaea). For bacteria, the shift of the microbiome composition due to short-term soil temperature manipulations in winter was similar to the community differences observed between long-term relatively cold to warm conditions. The results suggest a strong link between the changes in the microbiomes and changes in environmental processes, for example, nitrogen dynamics, driven by variations in winter climate.

show abstract

Section: Strong Interlinkage Between Microbiome Vegetation and Soil P...supporting

confidence: 91%

Warmer winters result in reshaping of the European beech forest soil microbiome (bacteria, archaea and fungi)—With potential implications for ecosystem functioning

Dahl

Kreyling

Petters

et al. 2023

Environmental Microbiology

Self Cite

View full text Add to dashboard Cite

show abstract

“…The study we performed is a record for Ukraine for the amount of collected material (Romanenko, 2002;Leontyev, 2006a), thus allowing us to confirm the patterns earlier found in other regions of the world and detect some earlier undetermined peculiarities of the substrate ecology of myxomycetes. Similarly to the previous studies (Borg Dahl et al, 2019;Shchepin et al, 2019), abundance and diversity of corticulous myxomy-cetes were found to be the highest on the commonest species of substrateforming plants. However, we have shown that differences between the consortia in abundance of myxomycetes cannot be explained only by the number of collected samples.…”

Section: Discussionsupporting

confidence: 82%

Ecological assemblages of corticulous myxomycetes in forest communities of the North-East Ukraine

Kochergina

Markina

2021

Biosys. divers.

View full text Add to dashboard Cite

Corticulous myxomycetes remain one of the least surveyed ecological groups of terrestrial protists. These organisms develop on the bark of trees, mostly feeding on bacteria and microalgae. Their microscopic size and fast developmental cycle (3–5 days) complicate the study of these organisms, and therefore data their on ecological relationships and patterns of biodiversity corticulous myxomycetes remain controversial. On the territory of the southwest spurs of the Central Russian Upland (Northeast Ukraine), no special studies on these organisms have been conducted. During 2017–2020, in nine forest sites located in this territory, we collected samples of bark of 16 species of tree plants, on which sporulating myxomycetes were then identified using the moist chamber technique in laboratory conditions. A total of 434 moist chambers was prepared, and 267 (61.5%) of which were found to contain myxomycete fruiting bodies. In total, we made 535 observations, finding 20,211 sporocarps. As a result, in the surveyed territory, we found 38 species of corticulous myxomycetes, belonging to 18 genera, 10 families, 7 orders, and 2 subclasses of Myxomycetes. Among the species of corticulous myxomycetes, the most abundant were Echinostelium minutum, Arcyria pomiformis, Macbrideola cornea, Perichaena chrysosperma, Licea kleistobolus, Paradiacheopsis fimbriata, Cribraria violacea, Enerthenema papillatum, A. cinerea, and L. operculata. The greatest species richness in the examined biota was observed for genera Comatricha, Licea, Paradiacheopsis and Perichaena, families Amaurochaetaceae and Trichiaceae, orders Stemonitidales, Trichiales and Physarales. By species diversity, dark-spored myxomycetes (Collumellomycetidae) somewhat exceeded bright-spored myxomycetes (Lucisporomycetidae). Badhamia versicolor, Didymium dubium, D. sturgisii, Macbrideola decapillata, and Perichaena luteola are new species for the surveyed area. Four species of myxomycetes were collected in Ukraine for the first time: Hemitrichia pardina, Licea floriformis, L. pygmea, and Macbrideola argentea. Quantitative and qualitative structure of myxomycete consortia developing on different species of substrate-forming plants demonstrated significant differences. The highest level of similarity was demonstrated by Fraxinus excelsior and Acer platanoides, and a relatively strong relationship was seen between Pinus sylvestris and Tilia cordata. The central cluster comprised F. excelsior, A. platanoides and P. sylvestris. By the sum of values of Bray-Curtis coefficient, Quercus robur appeared to be most distinctive plant species by quantitative composition of myxomycete consortia. F. excelsior and T. cordata are the most favourable for the development of corticulous myxomycetes. In all the analyzed consortia, the dominant species belonged to the Stemonitidales and Trichiales orders, while the remaining orders were represented by notably fewer species. Relative species richness of Stemonitidales was the highest in consortia of P. sylvestris, the contribution of Liceales was the greatest in A. platanoides and P. sylvestris, the percentage of Echinosteliales and Physarales was the highest on F. excelsior, the share of Cribrariales was especially large on A. platanoides. Trichiales were represented on all the analyzed substrates to almost the same extent. Representatives of Cribrariales and Physarales were completely absent on P. sylvestris, the species of Clastodermatales – on all species of plants, except Q. robur. Prevalence of bright-spored myxomycetes was determined for consortia of Acer platanoides, the dominance of dark-spored myxomycetes – for F. excelsior, P. sylvestris and Q. robur. The obtained data indicate the presence of stable complexes of corticulous myxomycetes, associated with different species of trees in the forest ecosystems of Northeast Ukraine. This encourages further study of the structure of myxomycete consortia with tree species that were not included in this study and determining the influence of physical-chemical properties of the bark of different plant species on the discovered peculiarities of myxomycete communities.

show abstract

“…To determine the composition of prokaryotic and fungal communities, sequencing of 16S rRNA genes and ITS2 fragments (DNA) and transcripts (cDNA) was done as described previously [62]. Raw sequence reads are deposited on NCBI Sequence Read Archive (https://www.ncbi.…”

Section: Quantification and Sequencing Of Marker Genes For Prokaryotementioning

confidence: 99%

Soil microbial legacies differ following drying-rewetting and freezing-thawing cycles

et al. 2021

View full text Add to dashboard Cite

Climate change alters frequencies and intensities of soil drying-rewetting and freezing-thawing cycles. These fluctuations affect soil water availability, a crucial driver of soil microbial activity. While these fluctuations are leaving imprints on soil microbiome structures, the question remains if the legacy of one type of weather fluctuation (e.g., drying-rewetting) affects the community response to the other (e.g., freezing-thawing). As both phenomenons give similar water availability fluctuations, we hypothesized that freezing-thawing and drying-rewetting cycles have similar effects on the soil microbiome. We tested this hypothesis by establishing targeted microcosm experiments. We created a legacy by exposing soil samples to a freezing-thawing or drying-rewetting cycle (phase 1), followed by an additional drying-rewetting or freezing-thawing cycle (phase 2). We measured soil respiration and analyzed soil microbiome structures. Across experiments, larger CO2 pulses and changes in microbiome structures were observed after rewetting than thawing. Drying-rewetting legacy affected the microbiome and CO2 emissions upon the following freezing-thawing cycle. Conversely, freezing-thawing legacy did not affect the microbial response to the drying-rewetting cycle. Our results suggest that drying-rewetting cycles have stronger effects on soil microbial communities and CO2 production than freezing-thawing cycles and that this pattern is mediated by sustained changes in soil microbiome structures.

show abstract

Different Degrees of Niche Differentiation for Bacteria, Fungi, and Myxomycetes Within an Elevational Transect in the German Alps

Cited by 19 publications

References 113 publications

Warmer winters result in reshaping of the European beech forest soil microbiome (bacteria, archaea and fungi)—With potential implications for ecosystem functioning

Warmer winters result in reshaping of the European beech forest soil microbiome (bacteria, archaea and fungi)—With potential implications for ecosystem functioning

Ecological assemblages of corticulous myxomycetes in forest communities of the North-East Ukraine

Soil microbial legacies differ following drying-rewetting and freezing-thawing cycles

Contact Info

Product

Resources

About