Diel Dynamics of Freshwater Bacterial Communities at Beaches in Lake Erie and Lake St. Clair, Windsor, Ontario

Shahraki, Abdolrazagh Hashemi; Chaganti, Subba Rao; Heath, Daniel D.

doi:10.1007/s00248-020-01539-0

Cited by 16 publications

(13 citation statements)

References 47 publications

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“…Moreover, the results indicate a strong control of total fungal DNA and saprotrophic ascomycetes on microbial respiration and potential phenol oxidase activity ( Table 2 ), suggesting ascomycetes to be a prominent regulator of SOM decomposition in the studied mountain forest. Although saprotrophic ascomycetes are known to be less efficient decomposers than basidiomycetes, they can produce hydrolysing and oxidising enzymes that degrade SOM ( Baldrian, 2006; Grinhut et al , 2007; Eichlerová et al , 2015; Kohler et al , 2015 ). In particularly fungi from the groups of Tetracladium and Hyaloscyphaceae (higher abundance at more fertile plots; Fig.…”

Section: Resultsmentioning

confidence: 99%

Soil fertility relates to fungal‐mediated decomposition and organic matter turnover in a temperate mountain forest

et al. 2021

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Fungi are known to exert a significant influence over soil organic matter (SOM) turnover, however understanding of the effects of fungal community structure on SOM dynamics and its consequences for ecosystem fertility is fragmentary.Here we studied soil fungal guilds and SOM decomposition processes along a fertility gradient in a temperate mountain beech forest. High-throughput sequencing was used to investigate fungal communities. Carbon and nitrogen stocks, enzymatic activity and microbial respiration were measured.While ectomycorrhizal fungal abundance was not related to fertility, saprotrophic ascomycetes showed higher relative abundances under more fertile conditions. The activity of oxidising enzymes and respiration rates in mineral soil were related positively to fertility and saprotrophic fungi. In addition, organic layer carbon and nitrogen stocks were lower on the more fertile plots, although tree biomass and litter input were higher. Together, the results indicated a faster SOM turnover at the fertile end of the gradient.We suggest that there is a positive feedback mechanism between SOM turnover and fertility that is mediated by soil fungi to a significant extent. By underlining the importance of fungi for soil fertility and plant growth, these findings furthermore emphasise the dependency of carbon cycling on fungal communities below ground.

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Section: Resultsmentioning

confidence: 99%

Soil fertility relates to fungal‐mediated decomposition and organic matter turnover in a temperate mountain forest

et al. 2021

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“…Despite the increasing number of investigations carried out worldwide, to date, fungal diversity in Antarctic sediments has been explored in a relatively limited number of studies, which mainly focused on the diversity of culturable fungal species [ 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 ]. Recently, for the first time, molecular tools have been employed to investigate the fungal diversity in Antarctic marine sediments and allowed the identification of a large number of fungal taxa although much of the fungal diversity in Antarctic marine sediments still remains unknown [ 49 ].…”

Section: Fungal Diversity and Ecology In Antarctic Marine Environmentsmentioning

confidence: 99%

“…Nonetheless, fungal diversity in marine sediments also include many other genera found in other Antarctic habitats, such as Penicillium , Metschnikowia , Rhodotorula, Cladosporium and Glaciozyma ( Figure 2 ). The genus Pseudogymnoascus genus found in Antarctic sediments has been also recorded in other cold environments including polar regions and glaciers [ 27 , 49 , 62 , 63 ], and the genus Phaeosphaeria , whose members include plant pathogens, has been also found in association with the Antarctic macroalgae Adenocystis utricularis [ 64 , 65 ].…”

Section: Fungal Diversity and Ecology In Antarctic Marine Environmentsmentioning

confidence: 99%

“…In the last decade, several studies highlighted that fungi are widely distributed in marine environments, from coastal waters [ 87 ] to the deep-sea surface and subsurface sediments [ 88 , 89 , 90 , 91 , 92 , 93 , 94 ], extreme habitats such as hypersaline anoxic basins [ 95 , 96 , 97 ], cold seeps [ 98 , 99 , 100 ], hydrothermal vents [ 101 , 102 ], and oil reservoirs [ 103 ]. Polar environments are also characterized by a considerably high number of fungal taxa [ 36 , 55 , 104 , 105 , 106 ], which can be involved in organic matter degradation and nutrient cycling, as well as in intimate relationships with a variety of organisms [ 27 , 32 , 49 , 107 ].…”

Section: Fungal Diversity and Ecology In Antarctic Marine Environmentsmentioning

confidence: 99%

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Diversity, Ecological Role and Biotechnological Potential of Antarctic Marine Fungi

Varrella

Barone

Tangherlini

et al. 2021

JoF

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The Antarctic Ocean is one of the most remote and inaccessible environments on our planet and hosts potentially high biodiversity, being largely unexplored and undescribed. Fungi have key functions and unique physiological and morphological adaptations even in extreme conditions, from shallow habitats to deep-sea sediments. Here, we summarized information on diversity, the ecological role, and biotechnological potential of marine fungi in the coldest biome on Earth. This review also discloses the importance of boosting research on Antarctic fungi as hidden treasures of biodiversity and bioactive molecules to better understand their role in marine ecosystem functioning and their applications in different biotechnological fields.

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“…This is also true for the species that share BINs. Recently, progress has been made in screening odonates for endosymbionts such as Wolbachia or Rickettsia , for example in Coenagrion from the UK ( Thongprem et al, 2020 ), or from systems outside of our study area ( Lorenzo-Carballa et al, 2019 —Fiji archipelago; Salunkhe et al, 2015 –Central India), documenting that these endosymbionts could constitute another route for mitochondrial introgression between species.…”

Section: Discussionmentioning

confidence: 84%

Coverage and quality of DNA barcode references for Central and Northern European Odonata

Geiger

Koblmüller

Assandri

et al. 2021

PeerJ

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Background Dragonflies and damselflies (Odonata) are important components in biomonitoring due to their amphibiotic lifecycle and specific habitat requirements. They are charismatic and popular insects, but can be challenging to identify despite large size and often distinct coloration, especially the immature stages. DNA-based assessment tools rely on validated DNA barcode reference libraries evaluated in a supraregional context to minimize taxonomic incongruence and identification mismatches. Methods This study reports on findings from the analysis of the most comprehensive DNA barcode dataset for Central European Odonata to date, with 103 out of 145 recorded European species included and publicly deposited in the Barcode of Life Data System (BOLD). The complete dataset includes 697 specimens (548 adults, 108 larvae) from 274 localities in 16 countries with a geographic emphasis on Central Europe. We used BOLD to generate sequence divergence metrics and to examine the taxonomic composition of the DNA barcode clusters within the dataset and in comparison with all data on BOLD. Results Over 88% of the species included can be readily identified using their DNA barcodes and the reference dataset provided. Considering the complete European dataset, unambiguous identification is hampered in 12 species due to weak mitochondrial differentiation and partial haplotype sharing. However, considering the known species distributions only two groups of five species possibly co-occur, leading to an unambiguous identification of more than 95% of the analysed Odonata via DNA barcoding in real applications. The cases of small interspecific genetic distances and the observed deep intraspecific variation in Cordulia aenea (Linnaeus, 1758) are discussed in detail and the corresponding taxa in the public reference database are highlighted. They should be considered in future applications of DNA barcoding and metabarcoding and represent interesting evolutionary biological questions, which call for in depth analyses of the involved taxa throughout their distribution ranges.

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Diel Dynamics of Freshwater Bacterial Communities at Beaches in Lake Erie and Lake St. Clair, Windsor, Ontario

Cited by 16 publications

References 47 publications

Soil fertility relates to fungal‐mediated decomposition and organic matter turnover in a temperate mountain forest

Soil fertility relates to fungal‐mediated decomposition and organic matter turnover in a temperate mountain forest

Diversity, Ecological Role and Biotechnological Potential of Antarctic Marine Fungi

Coverage and quality of DNA barcode references for Central and Northern European Odonata

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