Competition between n -alkane-assimilating yeasts and bacteria during colonization of sandy soil microcosms

Schmitz, C.; Goebel, I.; Wagner, Silke; Vomberg, Anja; Klinner, Ulrich

doi:10.1007/s002530000348

Cited by 36 publications

(21 citation statements)

References 12 publications

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“…Therefore one should take into account the fact that not always excellent affiliation to hydrocarbons is expressed as high cell hydrophobicity and in consequence high degree of biodegradation. It is worth mentioning here after Schmitz et al (2000), that there are individual properties of each microorganism such as cell wall structure, cell size or mobility that do not directly participate in xenobiotic degradation but may nevertheless be important for the competitiveness of the organism.…”

Section: Resultsmentioning

confidence: 99%

Phenol and n-alkanes (C12 and C16) utilization: influence on yeast cell surface hydrophobicity

Chrzanowski

Bielicka-Daszkiewicz

Owsianiak

et al. 2008

World J Microbiol Biotechnol

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This study was focused on the role of two types of diametrically different carbon sources, n-alkanes represented by a mixture of dodecane-hexadecane, and phenol on modification of the cell surface hydrophobicity. Capabilities of using either solely hydrocarbons or hydrocarbons in the mixture with phenol as well as phenol itself by yeast species Candida maltosa, Yarrowia lipolytica and Pichia guilliermondii were investigated. Studies were complemented by cell biomass formation measurements. The corresponding cell surface hydrophobicity was assessed by microbial adhesion to the hydrocarbon test (MATH). Degradation of phenol was examined using GC-SPE technique, whereas hydrocarbons were extracted prior to gravimetric determination. Results obtained indicated that the hydrophobic or hydrophilic nature of the carbon source had significant influence on the cell surface hydrophobicity. Although the results differed for some individual yeast strains, the generalization can be made that there is the correlation between the best hydrocarbon and phenol degradation and corresponding cell wall properties of the yeast examined.

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Section: Resultsmentioning

confidence: 99%

Phenol and n-alkanes (C12 and C16) utilization: influence on yeast cell surface hydrophobicity

Chrzanowski

Bielicka-Daszkiewicz

Owsianiak

et al. 2008

World J Microbiol Biotechnol

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“…The CYP52 enzymes were found to have slightly different substrate specificities: some act primarily on C 12 or C 16 alkanes, while other enzymes also oxidize fatty acids at the ω-position. The CYP52 gene family may play a significant role in the degradation of alkanes in oil-contaminated environments as yeast and fungi have been shown to overgrow bacteria in sandy soil contaminated with C 10 -C 15 n-alkanes [58]. Figure 1 Pathways for the degradation of alkanes by terminal, sub-and biterminal oxidation.…”

Section: Streptomycesmentioning

confidence: 99%

Diversity of Alkane Hydroxylase Systems in the Environment

Beilen

Duetz

et al. 2003

Oil & Gas Science and Technology - Rev. IFP

322

227

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Résumé -Diversité des systèmes alcane hydroxylase dans l'environnement -La première étape dans la dégradation aérobie des alcanes par les bactéries, les levures et les champignons est catalysée par des oxygénases, une classe d'enzymes capables d'introduire des atomes d'oxygène issus de l'oxygène moléculaire dans le substrat alcane. Ces enzymes jouent un rôle important dans la biodégradation du pétrole et dans la biodégradation cométabolique de composés tels que le trichloroéthylène et les éthers-carburants. De plus, ce sont des biocatalyseurs très utiles qui peuvent également servir de modèles pour caractériser une réaction chimique difficile : l'activation régio-et stéréospécifique de la liaison C-H. Plusieurs autres classes d'enzymes catalysent l'oxydation des alcanes. Les souches de levures capables de dégrader les alcanes contiennent plusieurs alcanes hydroxylases appartenant à la superfamille des P450, alors que différentes bactéries contiennent des enzymes similaires au système alcane hydroxylase membranaire de Pseudomonas putida GPo1. Les alcanes à courte chaîne sont probablement oxydés par des alcanes hydroxylases solubles similaires aux méthanes monooxygénases. La présence dans l'environnement de ces oxygénases a été étudiée dans des échantillons de sols et aquifères uniquement pour les alcanes hydroxylases associés aux membranes. Abstract -Diversity of Alkane Hydroxylase Systems in the Environment

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“…This yeast species is wellknown due to its inducible cycloheximide resistance, killer activity against other yeast species, pseudohyphal growth in response to environmental conditions, biofilm formation, alkanes and short chain fatty acids assimilation (Mutoh et al 1995;Nakazawa et al 1998;Schmitz et al 2000;Buzzini & Martini 2001;Jirků et al 2001). Lauková and Valík (2003) pointed out that C. maltosa contaminated yoghurt products through the fermentation tank filters used for air sterilisation.…”

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confidence: 99%

Characterisation of Lactobacillus rhamnosus VT1 and its effect on the growth of Candida maltosa YP1

Liptáková¹,

Valı́k²,

Lauková³

et al. 2007

Czech J. Food Sci.

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The combined effect of initial amount of 18 h L. rhamnosus VT1 inoculum and incubation temperature on the growth of Candida maltosa YP1, an oxidative food spoilage yeast strain, was primarily modelled and studied by standard response surface methodology. This study resulted in the following linear regression equations characterising lag time and growth rate of C. maltosa YP1 in milk in competition with the potentially protective lactobacillus strain. Lag-phase of C. maltosa was strongly influenced by the amount of lactobacillus inoculum (V0) and incubation temperature (1/T). The synergic effect of both these factors was also evident as results from the equation lag = –33.50 + 186.38 × V0 × 1/T + 512.27 × 1/T – 5.511 × V0 (R2(λ) = 0.849). The growth rate was sufficiently described by the linear relation: GrCm = –0.00046 + 0.0033 × T – 0.0016 × V0 (R2(Gr) = 0.847). On the basis of these equations, the mutual microbial interactions and the potential application of the lactobacillus strains to food protection are discussed.

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Competition between n -alkane-assimilating yeasts and bacteria during colonization of sandy soil microcosms

Cited by 36 publications

References 12 publications

Phenol and n-alkanes (C12 and C16) utilization: influence on yeast cell surface hydrophobicity

Phenol and n-alkanes (C12 and C16) utilization: influence on yeast cell surface hydrophobicity

Diversity of Alkane Hydroxylase Systems in the Environment

Characterisation of Lactobacillus rhamnosus VT1 and its effect on the growth of Candida maltosa YP1

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