Zygosaccharomyces favi sp. nov., an obligate osmophilic yeast species from bee bread and honey

Čadež, Neža; Fülöp, László; Dlauchy, Dénes; Péter, Gábor

doi:10.1007/s10482-014-0359-1

Cited by 33 publications

(14 citation statements)

References 35 publications

(45 reference statements)

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“…To date, several Zygosaccharomyces sp. have occasionally been found in the beehive environment 48 , but high abundance of Zygosaccharomyces in the queen gut has not been reported. Since the queen consumes the royal jelly, a mainly fructose- and glucose-containing acidic fluid 49 , and the queen’s gut microbiota is dominated by Alpha-2.2 and Lactobacillus 14 , 18 , 46 , the queen gut seems to contain acidic substances and metabolites, such as acetic acid and lactic acid.…”

Section: Discussionmentioning

confidence: 98%

Social status shapes the bacterial and fungal gut communities of the honey bee

Yun

Jung

Kim

et al. 2018

Sci Rep

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Despite the fungal abundance in honey and bee bread, little is known about the fungal gut community of the honey bee and its effect on host fitness. Using pyrosequencing of the 16S rRNA gene and ITS2 region amplicons, we analysed the bacterial and fungal gut communities of the honey bee as affected by the host social status. Both communities were significantly affected by the host social status. The bacterial gut community was similar to those characterised in previous studies. The fungal gut communities of most worker bees were highly dominated by Saccharomyces but foraging bees and queens were colonised by diverse fungal species and Zygosaccharomyces, respectively. The high fungal density and positive correlation between Saccharomyces species and Lactobacillus species, known yeast antagonists, were only observed in the nurse bee; this suggested that the conflict between Saccharomyces and Lactobacillus was compromised by the metabolism of the host and/or other gut microbes. PICRUSt analysis revealed significant differences in enriched gene clusters of the bacterial gut communities of the nurse and foraging bees, suggesting that different host social status might induce changes in the gut microbiota, and, that consequently, gut microbial community shifts to adapt to the gut environment.

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Section: Discussionmentioning

confidence: 98%

Social status shapes the bacterial and fungal gut communities of the honey bee

Yun

Jung

Kim

et al. 2018

Sci Rep

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“…Drosophila melanogaster is a vector of a yeast-community in banana fruits, where their larvae develop 38 . Fungi in the genus Zygosaccharomyces have been previously reported from other bees, including bumblebees 39 , honeybees 40 , 41 , and stingless bees 41 , 42 . The Zygosaccharomyces strains associated with S. depilis from this study form a monophyletic group that is the sister group to a lineage that includes several bee-associated Zygosaccharomyces spp.…”

Section: Discussionmentioning

confidence: 99%

Stingless Bee Larvae Require Fungal Steroid to Pupate

Paludo

Menezes

Silva-Junior

et al. 2018

Sci Rep

103

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The larval stage of the stingless bee Scaptotrigona depilis must consume a specific brood cell fungus in order to continue development. Here we show that this fungus is a member of the genus Zygosaccharomyces and provides essential steroid precursors to the developing bee. Insect pupation requires ecdysteroid hormones, and as insects cannot synthesize sterols de novo, they must obtain steroids in their diet. Larval in vitro culturing assays demonstrated that consuming ergosterol recapitulates the developmental effects on S. depilis as ingestion of Zygosaccharomyces sp. cells. Thus, we determined the molecular underpinning of this intimate mutualistic symbiosis. Phylogenetic analyses showed that similar cases of bee-Zygosaccharomyces symbiosis may exist. This unprecedented case of bee-fungus symbiosis driven by steroid requirement brings new perspectives regarding pollinator-microbiota interaction and preservation.

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“…NaCl) and sugar are most common. Candida glucosophila and Zygosaccharomyces favi are regarded as osmophilic species because they require reduced water activity for growth (Čadež, Fülöp, Dlauchy, & Péter, ; Lachance, Boekhout, Scorzetti, Fell, & Kurtzman, ).…”

Section: Major Factors In Extreme Habitats: Hard But Not Impossiblementioning

confidence: 99%

Extremophilic yeasts: the toughest yeasts around?

Buzzini

Turchetti

Yurkov

2018

Yeast

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Microorganisms are widely distributed in a multitude of environments including ecosystems that show challenging features to most life forms. The combination of extreme physical and chemical factors contributes to the definition of extreme habitats although the definition of extreme environments changes depending on one's point of view: anthropocentric, microbial-centric or zymo-centric. Microorganisms that live under conditions that cause hard survival are called extremophiles. In particular organisms that require extreme conditions are called true extremophiles while organisms that tolerate them to some extent are termed extremotolerant. Deviation of temperature, pH, osmotic stress, pressure and radiation from the common range delineates extreme environments. Yeasts are versatile eukaryotic organisms that are not frequently considered the toughest microorganisms in comparison with prokaryotes. Nevertheless extremophilic or extremotolerant species are present also within this group. Here a brief description is provided of the main extreme habitats and the metabolic and physiological modifications adopted by yeasts depending on their adverse conditions. Additionally the main extremophilic and extremotolerant yeast species associated with a few extreme habitats are listed.

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Zygosaccharomyces favi sp. nov., an obligate osmophilic yeast species from bee bread and honey

Cited by 33 publications

References 35 publications

Social status shapes the bacterial and fungal gut communities of the honey bee

Social status shapes the bacterial and fungal gut communities of the honey bee

Stingless Bee Larvae Require Fungal Steroid to Pupate

Extremophilic yeasts: the toughest yeasts around?

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