Vishniacozyma alagoana sp. nov. a tremellomycetes yeast associated with plants from dry and rainfall tropical forests

Abstract

<jats:p>Plants are important reservoirs of described and undescribed species of yeast. During a study of yeasts associated with bromeliads from the Northeast region of Brazil (collected in 2013–2017), analysis of the D1/D2 domain of the LSU rRNA and internal transcribed spacer (ITS) region identified eleven strains of yeasts as representing an unknown species of the genus <jats:italic>Vishniacozyma</jats:italic>. The species may have a diverse habitat in Brazil as a strain was collected from a flowering plant (Acanthaceae) in 1994. As a consequence, we propose <jats:italic>Vishniacozyma alagoana</jats:italic> sp. nov. as a member of the tremellomycetes yeasts (Agaricomycotina, Basidiomycota). <jats:italic>Vishniacozyma alagoana</jats:italic> sp. nov. was found in Atlantic Forest (a tropical rainforest) and the Caatinga (a seasonally dry tropical forest) associated with bromeliads in northeast and southeastern Brazil. The proposed novel species is related to <jats:italic>Vishniacozyma taibaiensis</jats:italic> and distinguished by eight nucleotide substitutions in the D1/D2 domain and seventeen in the ITS region. In addition, <jats:italic>Vishniacozyma alagoana</jats:italic> sp. nov. differs from <jats:italic>V. taibaiensis</jats:italic> by the ability to assimilate ribitol. The holotype is CBS 15966<jats:sup>T</jats:sup>.</jats:p>

Succession of Fungal Communities at Different Developmental Stages of Cabernet Sauvignon Grapes From an Organic Vineyard in Xinjiang

“…Vishniacozyma was present in all mature stages but was negatively correlated with almost all other fungal genera; this may be because it shows relatively better adaptation to the changes in the grape environment as well as aids suppression and elimination of other characteristic microorganisms, resulting in strong selection ( Barata et al, 2012 ). Vishniacozyma is a cosmopolitan yeast and has been isolated from several substrates, such as soil (including Antarctic, Alaska, and Arctic soils) ( Tsuji et al, 2019 ), as well as from wood ( Félix et al, 2020 ) and cold environments (surface of Vidal grapes) ( Shi et al, 2020 ). Nevertheless, its possible impacts on wine quality remain unknown and warrant further investigation, especially with regard to its effects on wine flavor.…”

Microbiome Status of Cider-Apples, from Orchard to Processing, with a Special Focus on Penicillium expansum Occurrence and Patulin Contamination

“…The second most abundant phylum detected across the samples was Basidiomycota, especially on the surface of apples sampled in the orchard and inside the transporting bin. The results of the most abundant fungal species identified on the surface of cider-apples in the orchard revealed the presence of yeasts that were found in the soil such as Vishniacozyma and Cyberlindnera [48,49]. The latter was detected in the soil adjacent to fruit trees from the Rosaceae family [49] and was maintained on the surface of the cider-apples in this study until the storage step.…”

Arnebia euchroma, a Plant Species of Cold Desert in the Himalayas, Harbors Beneficial Cultivable Endophytes in Roots and Leaves

“…were reported as endophytes from different plant parts of Brazilian apple (Malus domestica) (Camatti-Sartori et al, 2005). Close relatives of Vishniacozyma carnescens, i.e., V. alagoana and V. victoriae, were recently reported as endophytes of bromeliads (Félix et al, 2020) and maple tree (Wemheuer et al, 2019), respectively. In addition, some of the yeasts isolated in this study (Tausonia pullulans and Naganishia liquefaciens) were not reported earlier as endophytic colonizers in plants; however, their existence in soils and extreme habitats has been reported (Han et al, 2020;Li A. H. et al, 2020).…”