Basidiomycetous Yeasts: Current Status

Choudhary, Devendra Kumar; Johri, B. N.

doi:10.1007/978-1-4020-8292-4_2

Cited by 11 publications

(12 citation statements)

References 95 publications

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“…3). Microbotryomycetes, Tremellomycetes and Saccharomycetes are fungal classes comprising saprobic yeasts, fungal guilds that typically prefer moist environments rich in simple soluble nutrients (Suh et al 2006;Choudhary & Johri 2009), but have also been shown to be the main fungal cellulose utilizers in forest soils ( Stursov a et al 2012). These features could explain their increased abundance under increased primary production.…”

Section: Response Of Fungal Decomposers and Symbionts To Irrigationmentioning

confidence: 99%

A decade of irrigation transforms the soil microbiome of a semi‐arid pine forest

et al. 2017

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The impact of climate change on the soil microbiome potentially alters the biogeochemical cycle of terrestrial ecosystems. In semi-arid environments, water availability is a major constraint on biogeochemical cycles due to the combination of high summer temperatures and low rainfall. Here, we explored how 10 years of irrigation of a water-limited pine forest in the central European Alps altered the soil microbiome and associated ecosystem functioning. A decade of irrigation stimulated tree growth, resulting in higher crown cover, larger yearly increments of tree biomass, increased litter fall and greater root biomass. Greater amounts of plant-derived inputs associated with increased primary production in the irrigated forest stands stimulated soil microbial activity coupled with pronounced shifts in the microbiome from largely oligotrophic to more copiotrophic lifestyles. Microbial groups benefitting from increased resource availabilities (litter, rhizodeposits) thrived under irrigation, leading to enhanced soil organic matter mineralization and carbon respired from irrigated soils. This unique long-term study provides new insights into the impact of precipitation changes on the soil microbiome and associated ecosystem functioning in a water-limited pine forest ecosystem and improves our understanding of the persistency of long-term soil carbon stocks in a changing climate.

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Section: Response Of Fungal Decomposers and Symbionts To Irrigationmentioning

confidence: 99%

A decade of irrigation transforms the soil microbiome of a semi‐arid pine forest

et al. 2017

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“…Generally, species with differences of less than 1% in the D1/D2 domain or of 1–2% in the ITS region are recognized to be conspecific (Kurtzman and Robnett ; Hamamoto et al. ; Choudhary and Johri ; Huang et al. ).…”

Section: Resultsmentioning

confidence: 99%

“…RS1 and R. taiwanensis BCRC 23118 T differ by 1 and 3 nucleotides in the internal transcribed spacer (ITS) region and D1/D2 domain, respectively. Generally, species with differences of less than 1% in the D1/D2 domain or of 1-2% in the ITS region are recognized to be conspecific (Kurtzman and Robnett 1998;Hamamoto et al 2002;Choudhary and Johri 2009;Huang et al 2011). Phylogenetic analysis of the D1/D2 domain or ITS region of the type strains of Rhodotorula and Rhodotorula sp.…”

Section: Resultsmentioning

confidence: 99%

Complete mitochondrial genome of the aluminum‐tolerant fungusRhodotorula taiwanensisRS1 and comparative analysis ofBasidiomycotamitochondrial genomes

et al. 2013

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The complete mitochondrial genome of Rhodotorula taiwanensis RS1, an aluminum-tolerant Basidiomycota fungus, was determined and compared with the known mitochondrial genomes of 12 Basidiomycota species. The mitochondrial genome of R. taiwanensis RS1 is a circular DNA molecule of 40,392 bp and encodes the typical 15 mitochondrial proteins, 23 tRNAs, and small and large rRNAs as well as 10 intronic open reading frames. These genes are apparently transcribed in two directions and do not show syntenies in gene order with other investigated Basidiomycota species. The average G+C content (41%) of the mitochondrial genome of R. taiwanensis RS1 is the highest among the Basidiomycota species. Two introns were detected in the sequence of the atp9 gene of R. taiwanensis RS1, but not in that of other Basidiomycota species. Rhodotorula taiwanensis is the first species of the genus Rhodotorula whose full mitochondrial genome has been sequenced; and the data presented here supply valuable information for understanding the evolution of fungal mitochondrial genomes and researching the mechanism of aluminum tolerance in microorganisms.

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“…They have cell walls and are easily differentiated from bacteria due to their larger dimensions and morphological properties. Each species has a characteristic shape, but, even in pure cultures, there is considerable variation in individual cell size and shape depending on the age and environment (Choudhary & Johri, 2009). Flowers and fruit are important micro-habitats for a range of yeast species due to their favorable sugar concentration and pH.…”

Section: Introductionmentioning

confidence: 99%

“…The yeasts may form pseudohyphae consisting of simple chains of spherical, elliptic, or cylindrical cells. They most times reproduce by multilateral gemmulation, with the new gemmule being formed on the side of the mother cell (Pretorius, 2000;Choudhary & Johri, 2009). …”

Section: Introductionmentioning

confidence: 99%

Identifying yeast isolated from spoiled peach puree and assessment of its batch culture for invertase production

Ferreira

Avila²,

Toralles³

et al. 2016

Food Sci. Technol

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The identification of yeasts isolated from spoiled Jubileu peach puree using the API 20C AUX method and a commercial yeast as witness were studied. Subsequently, the yeast's growth potential using two batch culture treatments were performed to evaluate number of colonies (N), reducing sugar concentration (RS), free-invertase (FI), and culture-invertase activity (CI). Stock cultures were maintained on potato dextrose agar (PDA) slants at 4 °C and pH 5 for later use for batch-culture (150 rpm) at 30°C for 24 h, then they were stored at 4 °C for subsequent invertase extraction. The FI extract was obtained using NaHCO 3 as autolysis agent, and CI activity was determined on the supernatant after batch-cultured centrifugation. The activity was followed by an increase in absorbance at 490 nm using the acid 3,5-DNS method with glucose standard. Of the four yeasts identified, Saccharomyces cerevisiae was chosen for legal reasons. It showed logarithmic growth up to 18 h of fermentation with positive correlation CI activity and inverse with RS. FI showed greater activity by the end of the log phase and an inverse correlation with CI activity. Finally, it was concluded that treatment "A" is more effective than "B" to produce invertase (EC 3.2.1.26).Keywords: spoiled peach puree; invertase; Saccharomyces cerevisiae; autolysis.Pratical Application: Potential production of glucose and fructose syrup by yeast invertases from spoiled peach pure.

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Basidiomycetous Yeasts: Current Status

Cited by 11 publications

References 95 publications

A decade of irrigation transforms the soil microbiome of a semi‐arid pine forest

A decade of irrigation transforms the soil microbiome of a semi‐arid pine forest

Complete mitochondrial genome of the aluminum‐tolerant fungusRhodotorula taiwanensisRS1 and comparative analysis ofBasidiomycotamitochondrial genomes

Identifying yeast isolated from spoiled peach puree and assessment of its batch culture for invertase production

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