Identification and characterisation of halotolerant bacteria in spoiled dry-cured hams

Meat Science ◽  
2005 ◽  
Vol 70 (2) ◽  
pp. 241-246 ◽  
Author(s):  
Elena Rastelli ◽  
Giorgio Giraffa ◽  
Domenico Carminati ◽  
Giovanni Parolari ◽  
Silvana Barbuti
Keyword(s):  
Halotolerant Bacteria

Removal of lithium from aqueous solutions using halotolerant bacteria from El Salar del Hombre Muerto

2021 ◽  
Vol 9 (2) ◽  
pp. 105099
Author(s):  
Fabiana Lilian Martínez ◽  
Verónica Beatriz Rajal ◽  
Verónica Irazusta
Keyword(s):  
Aqueous Solutions ◽  
Halotolerant Bacteria

scholarly journals The Root Microbiome of Salicornia ramosissima as a Seedbank for Plant-Growth Promoting Halotolerant Bacteria

2021 ◽  
Vol 11 (5) ◽  
pp. 2233
Author(s):  
Maria J. Ferreira ◽  
Angela Cunha ◽  
Sandro Figueiredo ◽  
Pedro Faustino ◽  
Carla Patinha ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Cultivated Plants ◽  
Plant Growth Promoting Bacteria ◽  
Crop Cultivation ◽  
Halotolerant Bacteria ◽  
Salicornia Ramosissima ◽  
Plant Growth Promoting ◽  
Growth Promoting

Root−associated microbial communities play important roles in the process of adaptation of plant hosts to environment stressors, and in this perspective, the microbiome of halophytes represents a valuable model for understanding the contribution of microorganisms to plant tolerance to salt. Although considered as the most promising halophyte candidate to crop cultivation, Salicornia ramosissima is one of the least-studied species in terms of microbiome composition and the effect of sediment properties on the diversity of plant-growth promoting bacteria associated with the roots. In this work, we aimed at isolating and characterizing halotolerant bacteria associated with the rhizosphere and root tissues of S. ramosissima, envisaging their application in saline agriculture. Endophytic and rhizosphere bacteria were isolated from wild and crop cultivated plants, growing in different estuarine conditions. Isolates were identified based on 16S rRNA sequences and screened for plant-growth promotion traits. The subsets of isolates from different sampling sites were very different in terms of composition but consistent in terms of the plant-growth promoting traits represented. Bacillus was the most represented genus and expressed the wider range of extracellular enzymatic activities. Halotolerant strains of Salinicola, Pseudomonas, Oceanobacillus, Halomonas, Providencia, Bacillus, Psychrobacter and Brevibacterium also exhibited several plant-growth promotion traits (e.g., 3-indole acetic acid (IAA), 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, siderophores, phosphate solubilization). Considering the taxonomic diversity and the plant-growth promotion potential of the isolates, the collection represents a valuable resource that can be used to optimize the crop cultivation of Salicornia under different environmental conditions and for the attenuation of salt stress in non-halophytes, considering the global threat of arable soil salinization.

scholarly journals Potential for Plant Growth Promotion of Rhizobacteria Associated withSalicorniaGrowing in Tunisian Hypersaline Soils

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
Francesca Mapelli ◽  
Ramona Marasco ◽  
Eleonora Rolli ◽  
Marta Barbato ◽  
Hanene Cherif ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Crop Production ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Growth Promotion ◽  
Arid Ecosystems ◽  
Acetic Acid Production ◽  
Halotolerant Bacteria ◽  
Microbiome Composition

Soil salinity and drought are among the environmental stresses that most severely affect plant growth and production around the world. In this study the rhizospheres ofSalicorniaplants and bulk soils were collected fromSebkhetandChotthypersaline ecosystems in Tunisia. Depiction of bacterial microbiome composition by Denaturing Gradient Gel Electrophoresis unveiled the occurrence of a high bacterial diversity associated withSalicorniaroot system. A large collection of 475 halophilic and halotolerant bacteria was established fromSalicorniarhizosphere and the surrounding bulk soil, and the bacteria were characterized for the resistance to temperature, osmotic and saline stresses, and plant growth promotion (PGP) features. TwentyHalomonasstrains showed resistance to a wide set of abiotic stresses and were able to perform different PGP activitiesin vitroat 5% NaCl, including ammonia and indole-3-acetic acid production, phosphate solubilisation, and potential nitrogen fixation. By using agfp-labelled strain it was possible to demonstrate thatHalomonasis capable of successfully colonisingSalicorniaroots in the laboratory conditions. Our results indicated that the culturable halophilic/halotolerant bacteria inhabiting salty and arid ecosystems have a potential to contribute to promoting plant growth under the harsh salinity and drought conditions. These halophilic/halotolerant strains could be exploited in biofertilizer formulates to sustain crop production in degraded and arid lands.

scholarly journals Biological Manganese Removal by Novel Halotolerant Bacteria Isolated from River Water

Biomolecules ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 941
Author(s):  
Van Khanh Nguyen ◽  
Myung-Gyu Ha ◽  
Ho Young Kang ◽  
Dinh Duc Nguyen
Keyword(s):  
River Water ◽  
Environmental Remediation ◽  
High Salinity ◽  
Resistant Bacteria ◽  
Contaminated Water ◽  
Halotolerant Bacteria ◽  
Manganese Removal ◽  
Biogenic Mn Oxides ◽  
Detoxification Mechanisms ◽  
Mn Oxides

Manganese-oxidizing bacteria have been widely investigated for bioremediation of Mn-contaminated water sources and for production of biogenic Mn oxides that have extensive applications in environmental remediation. In this study, a total of 5 Mn-resistant bacteria were isolated from river water and investigated for Mn removal. Among them, Ochrobactrum sp. NDMn-6 exhibited the highest Mn removal efficiency (99.1%). The final precipitates produced by this strain were defined as a mixture of Mn2O3, MnO2, and MnCO3. Optimal Mn-removal performance by strain NDMn-6 was obtained at a temperature range of 25–30 °C and the salinity of 0.1–0.5%. More interestingly, strain NDMn-6 could be resistant to salinities of up to 5%, revealing that this strain could be possibly applied for Mn remediation of high salinity regions or industrial saline wastewaters. This study also revealed the potential of self-detoxification mechanisms, wherein river water contaminated with Mn could be cleaned by indigenous bacteria through an appropriate biostimulation scheme.

Biodegradation of diethyl-phthalate (DEP) by halotolerant bacteria isolated from an estuarine environment

2020 ◽  
Vol 31 (4-6) ◽  
pp. 331-340
Author(s):  
Elen Aquino Perpetuo ◽  
Esther Cecília Nunes da Silva ◽  
Bruno Karolski ◽  
Claudio Augusto Oller do Nascimento
Keyword(s):  
Estuarine Environment ◽  
Diethyl Phthalate ◽  
Halotolerant Bacteria

scholarly journals Diversity of culturable moderately halophilic and halotolerant bacteria in a marsh and two salterns a protected ecosystem of Lower Loukkos (Morocco)

2012 ◽  
Vol 6 (10) ◽  
pp. 2419-2434 ◽  
Author(s):  
Willems Anne ◽  
De Vos Paul ◽  
El fahime ElMostafa ◽  
Swings Jean ◽  
Bendaou Najib ◽  
...  
Keyword(s):  
Halotolerant Bacteria ◽  
Moderately Halophilic

scholarly journals Isolation and identification of halophilic and halotolerant bacteria from the sediments of the Qeshm Island mangrove forest

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Pegah Javid ◽  
Hassan Zadabbas Shahabadi ◽  
Homeyra Amirkhani ◽  
Narges Amrollahi ◽  
Mohammad Sharif Ranjbar
Keyword(s):  
Halophilic Bacteria ◽  
Mangrove Forests ◽  
Bacterial Strains ◽  
Biochemical Tests ◽  
Isolation And Identification ◽  
Qeshm Island ◽  
Gram Positive ◽  
Halotolerant Bacteria ◽  
Gram Positive Bacteria ◽  
Phylogenetic Taxonomy

Due to specific environmental and ecological conditions, mangrove forests are known as marine transitional zones between sea and land, and, as such, they host organisms with high ecological plasticity. The mangrove forests of Qeshm Island (Iran) are relatively pristine habitats and represent an ideal target for investigating patterns of either aquatic or benthic biodiversity. To provide insights on microbial diversity in this area, nineteen halophilic and halotolerant bacteria were isolated from the sediments in 2017 during low tide. The extracted bacterial strains were studied morphologically by streaking, initial observation of colonies and bacterial staining, and characterized using a battery of biochemical tests including KOH, MR, VP, urease, TSI, S/I/M, Mac, LIA, ODC, ADH, oxidase, catalase, and tryptophan deaminase. The optimum growth of halophilic bacteria was observed in salt concentrations from 5 to 20% NaCl, whereas the extreme halophilic Gram-positive strain grew in salt concentration of up to 30% NaCl. Molecular analyses were also carried out on four halophilic strains and one extreme halophilic gram-positive bacteria. Phylogenetic taxonomy analysis, after 16S rDNA gene Sanger sequencing, revealed that the halophilic bacteria were closely related to the strain types of the genus Bacillus including Bacillus licheniformis, Bacillus velezensis, Bacillus Paralicheniformis and Bacillus sp. with 99% bootstrap value. The extreme halophilic strain was associated to strains of Planococcus plakortidis with 100% bootstrap value.

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