The diversity of microfungi in peatlands originated from the White Sea

Abstract

The diversity of culturable filamentous microfungi in peat and sediments of four peatlands at the coastal zone of Kandalaksha Bay of the White Sea (Murmansk region, Russia) was studied by culture methods on standard and selective media. Annually 100 samples were collected from the bogs 2007-2010. Based on morphological, molecular markers and cultural features, 211 taxa were identified. Fungal communities observed at the peatlands were influenced mostly by their sea origin. We discovered a large difference between fungal communities from the peat and the sediments of the peatlands. In contrast to the sediments, the fungal community of the peat was found to be consistent throughout sampling sites. Fungi with specific ecophysiology, such as Sphagnum-decomposing species (Oidiodendron griseum, O. tenuissimum. Penicillium spinulosum, P. thomii, Talaromyces funiculosus), psychrotolerant and associated with insects species (Pseudogymnoascus pannorum, Tolypocladium spp.), typical marine species (Acremonium spp.) were found. In addition, different types of sterile mycelia were characteristic for the researched peatlands.

Soluble Sugar and Lipid Readjustments in the Yarrowia lipolytica Yeast at Various Temperatures and pH

“…Natural Y. lipolytica W29 yeast dwells in oily habitats, namely some food (cheese, yogurt, and sauces), wastewater contaminated with oils, as well as marine and hyper-mineralized sources [35,36]. Alkali-and halo-tolerance properties [1] make this organism a very promising model for biotechnological use [37]. In the present study, we could confirm the Y. lipolytica yeast's successful resistance to alkaline stress (pH ≥ 8.0).…”

Yeasts from peat in a tropical peat swamp forest in Thailand and their ability to produce ethanol, indole-3-acetic acid and extracellular enzymes

“…To date, there have been a limited number of articles reporting the microbial composition of tropical peat swamp forests (Boonyuen et al 2012;Bunterngsook et al 2010;Hadi et al 2012;Jackson et al 2009;Pinnoi et al 2006;Posa et al 2011) and temperate and boreal peatlands (Dedysh et al 2006; GrumSection Editor: Eckhard Thines Electronic supplementary material The online version of this article (doi:10.1007/s11557-016-1205-9) contains supplementary material, which is available to authorized users. Grzhimaylo et al 2016;Kachalkin and Yurkov 2012;Kachalkin et al 2008;Thormann et al 2007). Among these, only a few articles have reported yeasts in peatlands of Canada and Russia, and their ecological roles are largely unknown (GrumGrzhimaylo et al 2016;Kachalkin and Yurkov 2012;Kachalkin et al 2008;Thormann et al 2007).…”

Mosaic structure of the fungal community in the Kislo-Sladkoe Lake that is detaching from the White Sea

“…We hypothesized that such a transitional ecosystem would contain a unique composition of fungal biodiversity. Earlier studies on typical terrestrial peatlands in the same area showed a drastically different set of fungi (GrumGrzhimaylo and Bilanenko 2012;Bilanenko and GrumGrzhimaylo 2016;Grum-Grzhimaylo et al 2016). Thus, our current study highlights the unusual hydrology of the lake, which in turn has resulted in the establishment of a specific fungal community.…”

“…The same analysis was conducted for dominant fungal species in order to verify identification by morphological characters. Total genomic DNA (gDNA) was extracted from the mycelium of the 109 fungal strains using the chloroform/isopropanol method (Karakousis et al 2006;Grum-Grzhimaylo et al 2016). We amplified and sequenced the ITS rDNA for all strains and LSU rDNA for the most of them using common primer sets.…”