Salt-tolerant phenol-degrading microorganisms isolated from Amazonian soil samples

Bastos, Artur Eduardo Ribeiro; Moon, David Henry; Rossi, Antonio; Trevors, J. T.; Tsai, Siu Mui

doi:10.1007/s002030000216

Cited by 83 publications

(9 citation statements)

References 28 publications

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“…Similar results were found in Brazil by Bastos et al (2000) in virgin forest soil and a second location adjacent to the forest area subjected to slashand-burning activities. The salt-tolerant microorganisms isolated in the present study could become a promising option for their use in bioremediation processes for industrial effluents or contaminated soils based on their co-adaptation.…”

Section: Acknowledgementssupporting

confidence: 87%

Abiotic stress tolerance of microorganisms associated with oregano (Origanum vulgare L.) in the Yaqui Valley, Sonora

et al. 2017

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The impact of agricultural activities on microbial communities and environmental parameters was evaluated in two different soil samples. One sample corresponded to soil designated to oregano cultivation and the other one to native soil, both located in the Yaqui Valley, Sonora. The objective of this study was to estimate the microbial diversity in both soil samples, evaluating isolates obtained under three stress conditions: temperature, salinity and pesticide resistance, as well as using metabolic tests to evaluate their potential capabilities as plant growth promoting bacteria. The bacterial population was 5.9×10

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Section: Acknowledgementssupporting

confidence: 87%

Abiotic stress tolerance of microorganisms associated with oregano (Origanum vulgare L.) in the Yaqui Valley, Sonora

et al. 2017

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“…Rhodotorula glutinis [50]), Betaproteobacteria (e.g. Alcaligenes faecalis [52] and Comamonas [51]) and Sordariomycetes (e.g. Phomopsis liquidambari [53] and Trichoderma harzianum [29]) could degrade phenols.…”

Section: Discussionmentioning

confidence: 99%

p-Coumaric Acid Influenced Cucumber Rhizosphere Soil Microbial Communities and the Growth of Fusarium oxysporum f.sp. cucumerinum Owen

Zhou

2012

PLoS ONE

133

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BackgroundAutotoxicity of cucumber root exudates or decaying residues may be the cause of the soil sickness of cucumber. However, how autotoxins affect soil microbial communities is not yet fully understood.Methodology/Principal FindingsThe aims of this study were to study the effects of an artificially applied autotoxin of cucumber, p-coumaric acid, on cucumber seedling growth, rhizosphere soil microbial communities, and Fusarium oxysporum f.sp. cucumerinum Owen (a soil-borne pathogen of cucumber) growth. Abundance, structure and composition of rhizosphere bacterial and fungal communities were analyzed with real-time PCR, PCR-denaturing gradient gel electrophoresis (DGGE) and clone library methods. Soil dehydrogenase activity and microbial biomass C (MBC) were determined to indicate the activity and size of the soil microflora. Results showed that p-coumaric acid (0.1–1.0 µmol/g soil) decreased cucumber leaf area, and increased soil dehydrogenase activity, MBC and rhizosphere bacterial and fungal community abundances. p-Coumaric acid also changed the structure and composition of rhizosphere bacterial and fungal communities, with increases in the relative abundances of bacterial taxa Firmicutes, Betaproteobacteria, Gammaproteobacteria and fungal taxa Sordariomycete, Zygomycota, and decreases in the relative abundances of bacterial taxa Bacteroidetes, Deltaproteobacteria, Planctomycetes, Verrucomicrobia and fungal taxon Pezizomycete. In addition, p-coumaric acid increased Fusarium oxysporum population densities in soil.Conclusions/SignificanceThese results indicate that p-coumaric acid may play a role in the autotoxicity of cucumber via influencing soil microbial communities.

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“…In fact, C. tropicalis is able to grow in culture medium with more than 10–15% sodium chloride and has been isolated from the hypersaline environment for the first time from Dead Sea samples (Butinar et al, 2005 ). Bastos et al ( 2000 ) reported the isolation of this yeast from a sample of Amazonian forest enriched with high salt concentration.…”

Section: Tropicalis Osmotic Stress Response and Biotechnomentioning

confidence: 99%

An Update on Candida tropicalis Based on Basic and Clinical Approaches

2017

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Candida tropicalis has emerged as one of the most important Candida species. It has been widely considered the second most virulent Candida species, only preceded by C. albicans. Besides, this species has been recognized as a very strong biofilm producer, surpassing C. albicans in most of the studies. In addition, it produces a wide range of other virulence factors, including: adhesion to buccal epithelial and endothelial cells; the secretion of lytic enzymes, such as proteinases, phospholipases, and hemolysins, bud-to-hyphae transition (also called morphogenesis) and the phenomenon called phenotypic switching. This is a species very closely related to C. albicans and has been easily identified with both phenotypic and molecular methods. In addition, no cryptic sibling species were yet described in the literature, what is contradictory to some other medically important Candida species. C. tropicalis is a clinically relevant species and may be the second or third etiological agent of candidemia, specifically in Latin American countries and Asia. Antifungal resistance to the azoles, polyenes, and echinocandins has already been described. Apart from all these characteristics, C. tropicalis has been considered an osmotolerant microorganism and this ability to survive to high salt concentration may be important for fungal persistence in saline environments. This physiological characteristic makes this species suitable for use in biotechnology processes. Here we describe an update of C. tropicalis, focusing on all these previously mentioned subjects.

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Salt-tolerant phenol-degrading microorganisms isolated from Amazonian soil samples

Cited by 83 publications

References 28 publications

Abiotic stress tolerance of microorganisms associated with oregano (Origanum vulgare L.) in the Yaqui Valley, Sonora

Abiotic stress tolerance of microorganisms associated with oregano (Origanum vulgare L.) in the Yaqui Valley, Sonora

p-Coumaric Acid Influenced Cucumber Rhizosphere Soil Microbial Communities and the Growth of Fusarium oxysporum f.sp. cucumerinum Owen

An Update on Candida tropicalis Based on Basic and Clinical Approaches

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