Leda Cristina Santana Mendonça-hagler - Academia.edu (original) (raw)

Papers by Leda Cristina Santana Mendonça-hagler

Research paper thumbnail of Competition between genetically modified Pseudomonas fluorescens and its parent in subtropical soil microcosms

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Research paper thumbnail of Taxonomic implications of Rhodotorula rubra isolates from polluted sea water in Rio de Janeiro, Brazil

Revista brasileira de pesquisas médicas e biológicas, 1979

Sixty two strains of Rhodotorula rubra which were all isolated from marine and estuarine waters o... more Sixty two strains of Rhodotorula rubra which were all isolated from marine and estuarine waters of Rio de Janeiro were found variable for 19 to 32 carbon assimilation tests used in yeast taxonomy. Two R. rubra strains which had latent assimilation of maltose and melizitose appeared to be intermediate with R. pilimanae. Strains of R. glutinis var dairenensis which differed from R. rubra only by weak assimilation of nitrate appeared to be intermediated between these two species. Our physiological tests suggested that R. rubra, R. pilimanae, and part of R. glutinis should be combined and this was supported by DNA base composition and coezyme Q data existing in the literature.

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Research paper thumbnail of Candida lipolytica isolated from Guanabara Bay and its ability to grow in marine and estuarine conditions

Revista brasileira de pesquisas médicas e biológicas, 1979

Although the petroleum degrading ability of Candida lipolytica is well known, its ability to grow... more Although the petroleum degrading ability of Candida lipolytica is well known, its ability to grow in seawater is questionable. Sixteen strains of C. lipolytica were isolated from marine sites in Rio de Janeiro. Some variations from the standard description were noted including strains intermediate between the varieties lipolytica and deformans. A representative strain which grew well on petroleum was found to grow well in marine and estuary conditions which reinforces its potential as a seed organism for marine oil spills.

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Research paper thumbnail of Yeasts associated with the white shrimp Penaeus schmitti, sediment, and water of Sepetiba Bay, Rio de Janeiro, Brasil

Yeast (Chichester, England), 1989

Samples were collected in a polluted site with mean fecal coliform counts of the water being 9.0 ... more Samples were collected in a polluted site with mean fecal coliform counts of the water being 9.0 x 10(2)/100 ml and less polluted areas including commercial fishing areas with fecal coliforms typically below 2.0 x 10(1)/100 ml. Yeast populations from the polluted site were 4.6 x 10(2) to 9.2 x 10(3)/g of shrimp intestine, 1.0 x 10(1) to 2.4 x 10(2)/g of sediment and 4.0 x 10(-1) to 4.6 x 10(1)/ml of water, and in the less polluted site 3.0 x 10(1) to 2.3 x 10(2)/g of intestines and 3.0 x 10(-1) to 2.4 x 10(1)/ml of water. About half of these yeast populations were fermentative. Prevalent yeasts isolated from shrimp were Candida famata, Candida intermedia, Candida tropicalis, Candida krusei, Geotrichum sp., Trichosporon sp., Debaryomyces hansenii, Rhodotorula rubra, Kloeckera apiculata, Cryptococcus sp., Hansenula anomala, and Candida spp. The species found in water and sediment were similar to those of shrimp except that C. tropicalis was more prevalent in sediment with 25% of the p...

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Research paper thumbnail of Biosorption of free and complexed cadmium ions by Aspergillus niger

Biohydrometallurgy and the Environment Toward the Mining of the 21st Century, Pt B 1999, 1999

ABSTRACT

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Research paper thumbnail of Yeasts as an Example of Microbial Diversity in Brazilian Ecosystems

Oecologia Brasiliensis, 1995

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Research paper thumbnail of Rapid DNA extraction protocol from soil for polymerase chain reaction‐mediated amplification

Journal of Applied Bacteriology, 1993

A simple and rapid method of DNA extraction from soil was developed and DNA was made suitable for... more A simple and rapid method of DNA extraction from soil was developed and DNA was made suitable for subsequent efficient amplification by the polymerase chain reaction (PCR). Key features of the extraction and purification were cold lysozyme‐ and SDS‐assisted lysis with either freezing‐thawing or bead beating, cold phenol extraction of the resulting soil suspension, CsCl and KAc precipitation and, finally, spermine‐HCl or glass milk purification of DNA. Crude DNA preparations contained 4–20 μg DNA per g of soil extracted, and at least 50% of this was recovered in the final purified DNA preparations. The resulting DNA was pure enough to be restricted by various enzymes, and was amplifiable at concentrations of up to 20 ng of soil‐derived DNA per 50 μl reaction mix.Amplification of a 683 bp target sequence, pat, was performed with different Taq DNA polymerases. Application of the protocol enabled us to detect target DNA derived from roughly 103 introduced Pseudomonas fluorescens (RP4 ::...

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Research paper thumbnail of Yeast communities associated with different plant resources in sandy coastal plains of southeastern Brazil

Mycological Research, 1995

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Research paper thumbnail of DNA relatedness among aquatic yeasts of the genus Metschnikowia and proposal of the species Metschnikowia australis comb. nov

Canadian Journal of Microbiology, 1985

DNA hybridization studies were conducted to determine the taxonomic status of the aquatic group o... more DNA hybridization studies were conducted to determine the taxonomic status of the aquatic group of Metschnikowia species and their varieties. Among the DNAs of the four varieties of Metschnikowia bicuspidata, that of Metschnikowia bicuspidata var. australis showed 37 to 51% relative binding with the DNAs of Metschnikowia bicuspidata var. bicuspidata and of the varieties chathamia and californica. On this basis, low intervarietal fertility, and unique habitat in antarctic seawater, we have proposed to raise M. bicuspidata var. australis to the rank of species, Metschnikowia australis, comb. nov. DNA complementarity of Metschnikowia bicuspidata var. californica and Metschnikowia bicuspidata var. chathamia DNA was greater than 80% with that of M. bicuspidata var. bicuspidata. Metschnikowia australis can be differentiated from other Metschnikowia species and varieties by its inability to form chlamydospores, the formation of two needle-shaped ascospores per ascus, lack of glucose fermen...

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Research paper thumbnail of The incidence of killer activity and extracellular proteases in tropical yeast communities

Canadian Journal of Microbiology, 1997

The presence of killer and proteolytic yeasts was studied among 944 isolates representing 105 spe... more The presence of killer and proteolytic yeasts was studied among 944 isolates representing 105 species from tropical yeast communities. We found 13 killer toxin producing species, with Pichia kluyveri being the most frequent. Other killer yeast isolates were Candida apis, Candida bombicola, Candida fructus, Candida krusei, Candida sorbosa, Hanseniaspora uvarum, Issatchenkia occidentalis, Kloeckera apis, Kluyveromyces marxianus, Pichia membranaefaciens, Pichia ohmeri-like, and Sporobolomyces roseus. The communities from which killer yeasts were isolated had strains sensitive to them, and there were interspecific and intraspecific differences in the spectra of their killer activities. Pichia kluyveri had the broadest spectra of activity against sensitive isolates, and it apparently produced different toxins. The coexistence of sensitive and killer yeasts using the same substrate suggests that there is spatial separation in microhabitats or temporal separation in different stages of suc...

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Research paper thumbnail of Yeasts associated with Drosophila in tropical forests of Rio de Janeiro, Brazil

Canadian Journal of Microbiology, 1992

The distribution and diversity of yeast species vectored by and from the crop of eight species gr... more The distribution and diversity of yeast species vectored by and from the crop of eight species groups of Drosophila is described for two rain forest sites and an urban wooded area in Rio de Janeiro, Brazil. The typical forest Drosophila groups guarani, tripunctata, and willistoni showed a higher diversity of yeasts than the cosmopolitan melanogaster species group, suggesting different strategies of utilization of substrates. Apiculate yeasts, including Kloeckera apis, Kloeckera javanica, and Kloeckera japonica, were the prevalent species. Geotrichum spp. and Candida citrea were also frequent isolates in the forest sites. Similarities between the yeasts from the external surfaces and crops of Drosophila suggested that the feeding substrates were the main source of the yeasts vectored by these flies. Most of the yeasts were strong fermenters and assimilated few compounds, usually sucrose, cellobiose, and glycerol. This indicated a preference of the flies for food sources such as fruit...

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Research paper thumbnail of Clavispora opuntiae and other yeasts associated with the mothSigelgaita sp. in the cactusPilosocereus arrabidae of Rio de Janeiro, Brazil

Antonie van Leeuwenhoek, 1992

Clavispora opuntiae was the prevalent yeast associated with the feeding sites of Sigelgaita sp. l... more Clavispora opuntiae was the prevalent yeast associated with the feeding sites of Sigelgaita sp. larvae in the cactus Pilosocereus arrabidae. Also associated with this habitat were Candida sonorensis, Pichia cactophila, Pichia barkeri, Candida sp. A, Geotrichum sp., Geotrichum sericeum and the yeast like organisms Prototheca zopfii and Acremonium sp. Atypical yeast biotypes that may represent new species of Pichia, Sporopachydermia and Candida were isolated. Mating types of Clavispora opuntiae were at a ratio 70 h- to 3 h- and reduced levels of sporulation suggested low pressure for sexual reproduction in this habitat. Sigelgaita sp. probably was not an important vector for Clavispora opuntiae because it was not isolated from an adult or eggs of this moth.

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Research paper thumbnail of Survival of genetically modified Pseudomonas fluorescens introduced into subtropical soil microcosms

FEMS Microbiology Ecology, 1994

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Research paper thumbnail of Candida amapae, a new amino acid-requiring yeast from the Amazonian fruitParahancornia amapa

Journal of Industrial Microbiology, 1995

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Research paper thumbnail of Yeasts from Marine and Estuarine Waters with Different Levels of Pollution in the State of Rio de Janeiro, Brazil

Applied and Environmental Microbiology, 1981

Yeast counts were made at 24 marine and estuarine sites in the vicinity of Rio de Janeiro, Brazil... more Yeast counts were made at 24 marine and estuarine sites in the vicinity of Rio de Janeiro, Brazil. Mean salinities of estuarine sites ranged from 14.2 to 27.4‰, and mean temperatures ranged from 25 to 28°C. Total coliform counts varied from 80% above 100,000 colony-forming units (CFU)/100 ml at heavily polluted sites to 100% below 100 CFU/100 ml at unpolluted sites. Total yeast counts above 100 CFU/100 ml were typical of heavily and moderately polluted water but atypical of lightly polluted and unpolluted water. Mean total yeast counts were 2,880 CFU/100 ml for heavily polluted sites, 202 CFU/100 ml for moderately polluted sites, and 3 CFU/100 ml for lightly polluted and unpolluted sites. Total yeast counts had a positive response to increased pollution levels, and Candida krusei and phenotypically similar yeasts as a group were prevalent in polluted estuarine water but rare in unpolluted seawater. The 549 strains of yeasts and yeast-like organisms isolated were grouped into 67 spec...

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Research paper thumbnail of Yeast succession in the Amazon fruit Parahancornia amapa as resource partitioning among Drosophila spp

Applied and Environmental Microbiology, 1995

The succession of yeasts colonizing the fallen ripe amapa fruit, from Parahancornia amapa, was ex... more The succession of yeasts colonizing the fallen ripe amapa fruit, from Parahancornia amapa, was examined. The occupation of the substrate depended on both the competitive interactions of yeast species, such as the production of killer toxins, and the selective dispersion by the drosophilid guild of the amapa fruit. The yeast community associated with this Amazon fruit differed from those isolated from other fruits in the same forest. The physiological profile of these yeasts was mostly restricted to the assimilation of a few simple carbon sources, mainly L-sorbose, D-glycerol, DL-lactate, cellobiose, and salicin. Common fruit-associated yeasts of the genera Kloeckera and Hanseniaspora, Candida guilliermondii, and Candida krusei colonized fruits during the first three days after the fruit fell. These yeasts were dispersed and served as food for the invader Drosophila malerkotliana. The resident flies of the Drosophila willistoni group fed selectively on patches of yeasts colonizing fr...

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Research paper thumbnail of Yeast communities associated with sugarcane in Campos, Rio de Janeiro, Brazil

International Microbiology, Mar 17, 2010

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Research paper thumbnail of Genetic and Molecular Delineation of Three Sibling Species in the Hansenula polymorpha Complex

Systematic and Applied Microbiology, 1997

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Research paper thumbnail of A Preliminary Note on Yeasts Associated With Fecal Pellets of Rodents and Marsupials of Atlantic Forest Fragments in Rio de Janeiro, Brazil

Revista de Microbiologia, 1998

Yeasts had mean counts of above 106 CFU/g in the fecal pellets of small mammals from tropical for... more Yeasts had mean counts of above 106 CFU/g in the fecal pellets of small mammals from tropical forest fragments. Most of the 55 species isolated were fermentative ascomycetes, with the most frequent being Debaryomyces hansenii, Pichia membranifaciens and Issatchenkia orientalis, whereas Rhodotorula mucilaginosa was the most frequent yeast of basidiomycetous affinity.

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Research paper thumbnail of Ascomycetous yeasts from tropical intertidal dark mud of southeast Brazilian estuaries

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Research paper thumbnail of Competition between genetically modified Pseudomonas fluorescens and its parent in subtropical soil microcosms

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Research paper thumbnail of Taxonomic implications of Rhodotorula rubra isolates from polluted sea water in Rio de Janeiro, Brazil

Revista brasileira de pesquisas médicas e biológicas, 1979

Sixty two strains of Rhodotorula rubra which were all isolated from marine and estuarine waters o... more Sixty two strains of Rhodotorula rubra which were all isolated from marine and estuarine waters of Rio de Janeiro were found variable for 19 to 32 carbon assimilation tests used in yeast taxonomy. Two R. rubra strains which had latent assimilation of maltose and melizitose appeared to be intermediate with R. pilimanae. Strains of R. glutinis var dairenensis which differed from R. rubra only by weak assimilation of nitrate appeared to be intermediated between these two species. Our physiological tests suggested that R. rubra, R. pilimanae, and part of R. glutinis should be combined and this was supported by DNA base composition and coezyme Q data existing in the literature.

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Research paper thumbnail of Candida lipolytica isolated from Guanabara Bay and its ability to grow in marine and estuarine conditions

Revista brasileira de pesquisas médicas e biológicas, 1979

Although the petroleum degrading ability of Candida lipolytica is well known, its ability to grow... more Although the petroleum degrading ability of Candida lipolytica is well known, its ability to grow in seawater is questionable. Sixteen strains of C. lipolytica were isolated from marine sites in Rio de Janeiro. Some variations from the standard description were noted including strains intermediate between the varieties lipolytica and deformans. A representative strain which grew well on petroleum was found to grow well in marine and estuary conditions which reinforces its potential as a seed organism for marine oil spills.

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Research paper thumbnail of Yeasts associated with the white shrimp Penaeus schmitti, sediment, and water of Sepetiba Bay, Rio de Janeiro, Brasil

Yeast (Chichester, England), 1989

Samples were collected in a polluted site with mean fecal coliform counts of the water being 9.0 ... more Samples were collected in a polluted site with mean fecal coliform counts of the water being 9.0 x 10(2)/100 ml and less polluted areas including commercial fishing areas with fecal coliforms typically below 2.0 x 10(1)/100 ml. Yeast populations from the polluted site were 4.6 x 10(2) to 9.2 x 10(3)/g of shrimp intestine, 1.0 x 10(1) to 2.4 x 10(2)/g of sediment and 4.0 x 10(-1) to 4.6 x 10(1)/ml of water, and in the less polluted site 3.0 x 10(1) to 2.3 x 10(2)/g of intestines and 3.0 x 10(-1) to 2.4 x 10(1)/ml of water. About half of these yeast populations were fermentative. Prevalent yeasts isolated from shrimp were Candida famata, Candida intermedia, Candida tropicalis, Candida krusei, Geotrichum sp., Trichosporon sp., Debaryomyces hansenii, Rhodotorula rubra, Kloeckera apiculata, Cryptococcus sp., Hansenula anomala, and Candida spp. The species found in water and sediment were similar to those of shrimp except that C. tropicalis was more prevalent in sediment with 25% of the p...

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Research paper thumbnail of Biosorption of free and complexed cadmium ions by Aspergillus niger

Biohydrometallurgy and the Environment Toward the Mining of the 21st Century, Pt B 1999, 1999

ABSTRACT

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Research paper thumbnail of Yeasts as an Example of Microbial Diversity in Brazilian Ecosystems

Oecologia Brasiliensis, 1995

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Research paper thumbnail of Rapid DNA extraction protocol from soil for polymerase chain reaction‐mediated amplification

Journal of Applied Bacteriology, 1993

A simple and rapid method of DNA extraction from soil was developed and DNA was made suitable for... more A simple and rapid method of DNA extraction from soil was developed and DNA was made suitable for subsequent efficient amplification by the polymerase chain reaction (PCR). Key features of the extraction and purification were cold lysozyme‐ and SDS‐assisted lysis with either freezing‐thawing or bead beating, cold phenol extraction of the resulting soil suspension, CsCl and KAc precipitation and, finally, spermine‐HCl or glass milk purification of DNA. Crude DNA preparations contained 4–20 μg DNA per g of soil extracted, and at least 50% of this was recovered in the final purified DNA preparations. The resulting DNA was pure enough to be restricted by various enzymes, and was amplifiable at concentrations of up to 20 ng of soil‐derived DNA per 50 μl reaction mix.Amplification of a 683 bp target sequence, pat, was performed with different Taq DNA polymerases. Application of the protocol enabled us to detect target DNA derived from roughly 103 introduced Pseudomonas fluorescens (RP4 ::...

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Research paper thumbnail of Yeast communities associated with different plant resources in sandy coastal plains of southeastern Brazil

Mycological Research, 1995

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Research paper thumbnail of DNA relatedness among aquatic yeasts of the genus Metschnikowia and proposal of the species Metschnikowia australis comb. nov

Canadian Journal of Microbiology, 1985

DNA hybridization studies were conducted to determine the taxonomic status of the aquatic group o... more DNA hybridization studies were conducted to determine the taxonomic status of the aquatic group of Metschnikowia species and their varieties. Among the DNAs of the four varieties of Metschnikowia bicuspidata, that of Metschnikowia bicuspidata var. australis showed 37 to 51% relative binding with the DNAs of Metschnikowia bicuspidata var. bicuspidata and of the varieties chathamia and californica. On this basis, low intervarietal fertility, and unique habitat in antarctic seawater, we have proposed to raise M. bicuspidata var. australis to the rank of species, Metschnikowia australis, comb. nov. DNA complementarity of Metschnikowia bicuspidata var. californica and Metschnikowia bicuspidata var. chathamia DNA was greater than 80% with that of M. bicuspidata var. bicuspidata. Metschnikowia australis can be differentiated from other Metschnikowia species and varieties by its inability to form chlamydospores, the formation of two needle-shaped ascospores per ascus, lack of glucose fermen...

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Research paper thumbnail of The incidence of killer activity and extracellular proteases in tropical yeast communities

Canadian Journal of Microbiology, 1997

The presence of killer and proteolytic yeasts was studied among 944 isolates representing 105 spe... more The presence of killer and proteolytic yeasts was studied among 944 isolates representing 105 species from tropical yeast communities. We found 13 killer toxin producing species, with Pichia kluyveri being the most frequent. Other killer yeast isolates were Candida apis, Candida bombicola, Candida fructus, Candida krusei, Candida sorbosa, Hanseniaspora uvarum, Issatchenkia occidentalis, Kloeckera apis, Kluyveromyces marxianus, Pichia membranaefaciens, Pichia ohmeri-like, and Sporobolomyces roseus. The communities from which killer yeasts were isolated had strains sensitive to them, and there were interspecific and intraspecific differences in the spectra of their killer activities. Pichia kluyveri had the broadest spectra of activity against sensitive isolates, and it apparently produced different toxins. The coexistence of sensitive and killer yeasts using the same substrate suggests that there is spatial separation in microhabitats or temporal separation in different stages of suc...

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Research paper thumbnail of Yeasts associated with Drosophila in tropical forests of Rio de Janeiro, Brazil

Canadian Journal of Microbiology, 1992

The distribution and diversity of yeast species vectored by and from the crop of eight species gr... more The distribution and diversity of yeast species vectored by and from the crop of eight species groups of Drosophila is described for two rain forest sites and an urban wooded area in Rio de Janeiro, Brazil. The typical forest Drosophila groups guarani, tripunctata, and willistoni showed a higher diversity of yeasts than the cosmopolitan melanogaster species group, suggesting different strategies of utilization of substrates. Apiculate yeasts, including Kloeckera apis, Kloeckera javanica, and Kloeckera japonica, were the prevalent species. Geotrichum spp. and Candida citrea were also frequent isolates in the forest sites. Similarities between the yeasts from the external surfaces and crops of Drosophila suggested that the feeding substrates were the main source of the yeasts vectored by these flies. Most of the yeasts were strong fermenters and assimilated few compounds, usually sucrose, cellobiose, and glycerol. This indicated a preference of the flies for food sources such as fruit...

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Research paper thumbnail of Clavispora opuntiae and other yeasts associated with the mothSigelgaita sp. in the cactusPilosocereus arrabidae of Rio de Janeiro, Brazil

Antonie van Leeuwenhoek, 1992

Clavispora opuntiae was the prevalent yeast associated with the feeding sites of Sigelgaita sp. l... more Clavispora opuntiae was the prevalent yeast associated with the feeding sites of Sigelgaita sp. larvae in the cactus Pilosocereus arrabidae. Also associated with this habitat were Candida sonorensis, Pichia cactophila, Pichia barkeri, Candida sp. A, Geotrichum sp., Geotrichum sericeum and the yeast like organisms Prototheca zopfii and Acremonium sp. Atypical yeast biotypes that may represent new species of Pichia, Sporopachydermia and Candida were isolated. Mating types of Clavispora opuntiae were at a ratio 70 h- to 3 h- and reduced levels of sporulation suggested low pressure for sexual reproduction in this habitat. Sigelgaita sp. probably was not an important vector for Clavispora opuntiae because it was not isolated from an adult or eggs of this moth.

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Research paper thumbnail of Survival of genetically modified Pseudomonas fluorescens introduced into subtropical soil microcosms

FEMS Microbiology Ecology, 1994

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Research paper thumbnail of Candida amapae, a new amino acid-requiring yeast from the Amazonian fruitParahancornia amapa

Journal of Industrial Microbiology, 1995

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Research paper thumbnail of Yeasts from Marine and Estuarine Waters with Different Levels of Pollution in the State of Rio de Janeiro, Brazil

Applied and Environmental Microbiology, 1981

Yeast counts were made at 24 marine and estuarine sites in the vicinity of Rio de Janeiro, Brazil... more Yeast counts were made at 24 marine and estuarine sites in the vicinity of Rio de Janeiro, Brazil. Mean salinities of estuarine sites ranged from 14.2 to 27.4‰, and mean temperatures ranged from 25 to 28°C. Total coliform counts varied from 80% above 100,000 colony-forming units (CFU)/100 ml at heavily polluted sites to 100% below 100 CFU/100 ml at unpolluted sites. Total yeast counts above 100 CFU/100 ml were typical of heavily and moderately polluted water but atypical of lightly polluted and unpolluted water. Mean total yeast counts were 2,880 CFU/100 ml for heavily polluted sites, 202 CFU/100 ml for moderately polluted sites, and 3 CFU/100 ml for lightly polluted and unpolluted sites. Total yeast counts had a positive response to increased pollution levels, and Candida krusei and phenotypically similar yeasts as a group were prevalent in polluted estuarine water but rare in unpolluted seawater. The 549 strains of yeasts and yeast-like organisms isolated were grouped into 67 spec...

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Research paper thumbnail of Yeast succession in the Amazon fruit Parahancornia amapa as resource partitioning among Drosophila spp

Applied and Environmental Microbiology, 1995

The succession of yeasts colonizing the fallen ripe amapa fruit, from Parahancornia amapa, was ex... more The succession of yeasts colonizing the fallen ripe amapa fruit, from Parahancornia amapa, was examined. The occupation of the substrate depended on both the competitive interactions of yeast species, such as the production of killer toxins, and the selective dispersion by the drosophilid guild of the amapa fruit. The yeast community associated with this Amazon fruit differed from those isolated from other fruits in the same forest. The physiological profile of these yeasts was mostly restricted to the assimilation of a few simple carbon sources, mainly L-sorbose, D-glycerol, DL-lactate, cellobiose, and salicin. Common fruit-associated yeasts of the genera Kloeckera and Hanseniaspora, Candida guilliermondii, and Candida krusei colonized fruits during the first three days after the fruit fell. These yeasts were dispersed and served as food for the invader Drosophila malerkotliana. The resident flies of the Drosophila willistoni group fed selectively on patches of yeasts colonizing fr...

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Research paper thumbnail of Yeast communities associated with sugarcane in Campos, Rio de Janeiro, Brazil

International Microbiology, Mar 17, 2010

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Research paper thumbnail of Genetic and Molecular Delineation of Three Sibling Species in the Hansenula polymorpha Complex

Systematic and Applied Microbiology, 1997

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Research paper thumbnail of A Preliminary Note on Yeasts Associated With Fecal Pellets of Rodents and Marsupials of Atlantic Forest Fragments in Rio de Janeiro, Brazil

Revista de Microbiologia, 1998

Yeasts had mean counts of above 106 CFU/g in the fecal pellets of small mammals from tropical for... more Yeasts had mean counts of above 106 CFU/g in the fecal pellets of small mammals from tropical forest fragments. Most of the 55 species isolated were fermentative ascomycetes, with the most frequent being Debaryomyces hansenii, Pichia membranifaciens and Issatchenkia orientalis, whereas Rhodotorula mucilaginosa was the most frequent yeast of basidiomycetous affinity.

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Research paper thumbnail of Ascomycetous yeasts from tropical intertidal dark mud of southeast Brazilian estuaries

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