ArticleG3 (Bethesda, Md.)2021
Isolation, characterization, and genome assembly of Barnettozyma botsteinii sp. nov. and novel strains of Kurtzmaniella quercitrusa isolated from the intestinal tract of the termite Macrotermes bellicosus.
Article in G3 (Bethesda, Md.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 18 citations in OpenAlex.
- The ambrosial mycobiota ofIMA fungus · 2026Article
- Functional assessment of coffee cherry-derived non-conventional yeasts identifies promising candidates for probiotic and postbiotic applications.Frontiers in microbiology · 2026Article
- Article
- The Interaction Between the Nematode Caenorhabditis elegans and Its Coexisting Fungal Microbiome Member Barnettozyma californica.Environmental microbiology reports · 2025Article
- Production of Indole-3-Acetic Acid and Degradation of 2,4-D by Yeasts Isolated from Pollinating Insects.Microorganisms · 2025Article
- Shaping the tripartite symbiosis: are termite microbiome functions directed by the environmentally acquired fungal cultivar?Animal microbiome · 2024Article
- The Relationship between Microbial Communities in Coffee Fermentation and Aroma with Metabolite Attributes of Finished Products.Foods (Basel, Switzerland) · 2024Article
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7 authors at 1 institution in 1 country.
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Abstract
Bioconversion of hemicelluloses into simpler sugars leads to the production of a significant amount of pentose sugars, such as d-xylose. However, efficient utilization of pentoses by conventional yeast production strains remains challenging. Wild yeast strains can provide new industrially relevant characteristics and efficiently utilize pentose sugars. To explore this strategy, we isolated gut-residing yeasts from the termite Macrotermes bellicosus collected in Comoé National Park, Côte d'Ivoire. The yeasts were classified through their Internal Transcribed Spacer/Large Subunit sequence, and their genomes were sequenced and annotated. We identified a novel yeast species, which we name Barnettozyma botsteinii sp. nov. 1118T (MycoBank: 833563, CBS 16679T and IBT 710) and two new strains of Kurtzmaniella quercitrusa: var. comoensis (CBS 16678, IBT 709) and var. filamentosus (CBS 16680, IBT 711). The two K. quercitrusa strains grow 15% faster on synthetic glucose medium than Saccharomyces cerevisiae CEN.PKT in acidic conditions (pH = 3.2) and both strains grow on d-xylose as the sole carbon source at a rate of 0.35 h-1. At neutral pH, the yeast form of K. quercitrusa var. filamentosus, but not var. comoensis, switched to filamentous growth in a carbon source-dependent manner. Their genomes are 11.0-13.2 Mb in size and contain between 4888 and 5475 predicted genes. Together with closely related species, we did not find any relationship between gene content and ability to grow on xylose. Besides its metabolism, K. quercitrusa var. filamentosus has a large potential as a production organism, because of its capacity to grow at low pH and to undergo a dimorphic shift.
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