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| 1 | Plant Growth-Promoting Traits in Rhizobacteria of Heavy Metal-Resistant Plants and Their Effects on Brassica nigra Seed Germination显示文摘Phytoremediation is an emerging technology that uses plants and their associated microbes to clean up pollutants from the soil, water, and air. In order to select the plant growth-promoting rhizobacteria(PGPR) for phytoremediation of heavy metal contamination, 60 bacterial strains were isolated from the rhizosphere of two endemic plants, Prosopis laevigata and Spharealcea angustifolia, in a heavy metal-contaminated zone in Mexico. These rhizobacterial strains were characterized for the growth at different pH and salinity, extracellular enzyme production, solubilization of phosphate, heavy metal resistance, and plant growth-promoting(PGP) traits, including production of siderophores and indol-3-acetic acid(IAA). Overall, the obtained rhizobacteria presented multiple PGP traits. These rhizobacteria were also resistant to high levels of heavy metals(including As as a metalloid)(up to 480 mmol L(-1)As(V), 24 mmol L(-1)Pb(Ⅱ), 21 mmol L(-1)Cu(Ⅱ), and 4.5 mmol L(-1)Zn(Ⅱ)). Seven rhizobacterial strains with the best PGP traits were identified as members of Alcaligenes, Bacillus, Curtobacterium, and Microbacterium, and were selected for further bioassay.The inoculation of Brassica nigra seeds with Microbacterium sp. CE3R2, Microbacterium sp. NE1R5, Curtobacterium sp. NM1R1,and Microbacterium sp. NM3E9 facilitated the root development; they significantly improved the B. nigra seed germination and root growth in the presence of heavy metals such as 2.2 mmol L(-1)Zn(Ⅱ). The rhizobacterial strains isolated in the present study had the potential to be used as efficient bioinoculants in phytorremediation of soils contaminated with multiple heavy metals. | Brenda ROMN-PONCE Diana Miryel REZA-VZQUEZ Sonia GUTIRREZ-PAREDES María de Jesús DE HARO-CRUZ Jessica MALDONADO-HERNNDEZ Yanely BAHENA-OSORIO Paulina ESTRADA-DE LOS SANTOS En Tao WANG María Soledad VSQUEZ-MURRIETA | 2017 | Pedosphere2017，27，3： | 4 |
| 2 | Prevention of acute ischemic renal failure by targeted delivery of growth factors to the proximal tubule in transgenic mice:the efficacy of parathyroid hormone-related protein and hepatocyte growth factor显示文摘 | Nathalie M Fiaschi-Taesch Soledad Santos Vasumathi Reddy | 2004 | J Am Soc Nep hrol2004，15，1： | 1 |
| 3 | Characterization and kinetic compensation effect of corn biodiesel显示文摘 | DANTAS M B ALMEIDA A A F CONCEICAO M M FERNANDES V J Jr SANTOS I M G SILVA F C SOLEDADE L F B SOUZA A G | 2007 | J Therm Anal Calorim2007，87，3： | 1 |
| 4 | Influence of the concentration of Sb2O3and the viscosity of the precursor solution on the electrical and optical properties of SnO2thin films produced by the Pechini method显示文摘 | Bernardi M I B Soledade L E Santos I A | 2002 | Thin Solid Films2002，405，： | 1 |
| 5 | Allopurinol and Progression of CKD and Cardiovascular Events: Long-term Follow-up of a Randomized Clinical Trial显示文摘 | Marian Goicoechea Soledad M. Garcia de Vinuesa Ursula Verdalles Eduardo Verde Nicolas Macias Alba Santos Ana Pérez de Jose Santiago Cede?o Tania Linares Jose Lu?o | 2014 | American Journal of Kidney Diseases2014，，： | 1 |
| 6 | Yellow Zn x Ni 1? x WO 4 pigments obtained using a polymeric precursor method显示文摘 | André Luiz M. de Oliveira Jailson M. Ferreira Márcia R.S. Silva Glauco S. Braga Luiz E.B. Soledade M.A. Maurera Maria Aldeiza Carlos A. Paskocimas Severino J.G. Lima Elson Longo Antonio Gouveia de Souza Iêda M. Garcia dos Santos | 2007 | Dyes and Pigments2007，，1： | 1 |
| 7 | Comparison of the extracellular biological activities of Vibrio anguillarum and Aeromonas hydrophila显示文摘 | Ysabel Santos Isabel Bandin Soledad Nunez | 1992 | Aquacuhure1992，107，： | 1 |
| 8 | Thin Solid Films显示文摘 | Bernardi M I B Soledade L E Santos I A | 2002 | 405:2282002，405，： | 1 |
| 9 | Influence of the concentration of Sb2O3 and the viscosity of the precursor solution on the electrical and optical properties of SnO2 thin films produced by the Pechini method显示文摘 | Bernardi M L Soledade L E Santos I A | 2002 | Thin Solid Films2002，405，： | 1 |
| 10 | Influence of the concentration of Sb2O3and the viscosity of the precursor solution on the electrical and optical properties of SnO2thin films produced by the Pechini method显示文摘 | BERNARDI M I B SOLEDADE L E SANTOS I A | 2002 | Thin Solid Films2002，405，： | 1 |
| 11 | Black and green pigments based on chromium–cobalt spinels显示文摘 | Sayonara A. Eliziário Jeferson M. de Andrade Severino J.G. Lima Carlos A. Paskocimas Luiz E.B. Soledade P. Hammer E. Longo Ant?nio G. Souza Ieda M.G. Santos | 2011 | Materials Chemistry and Physics2011，，1： | 1 |
| 12 | Bacterial and archaeal communities in saline soils from a Los Negritos geothermal area in Mexico显示文摘In recent years,there has been a growing need to understand how salinity affects microbial communities in agricultural soils.Archaeal and bacterial community diversities and structures were investigated by high-throughput sequencing analysis of their 16S rRNA in two arable soils with low electrical conductivity(EC)(2.3 and 2.6 dS m^(-1))and a saline soil(EC=17.6 dS m^(-1)).The dominant bacterial phyla in the soils were Proteobacteria(relative abundance(RA)=46.2%),followed by Acidobacteria(RA=13.1%)and Actinobacteria(RA=10.0%),whereas Serratia(RA=6.0%)and Bacillus(RA=4.0%)were the dominant bacterial genera.Candidatus Nitrososphaera(53.5%)was the dominant archaeal phylotype in the arable soils,whereas Nitrosopumilus(RA=0.4%)dominated in the saline soil.The archaeal and bacterial community structures were different between the soils and significantly correlated with soil sand,arsenic,barium,and antimony contents,but not with soil salinity. | Joseph GUEVARA-LUNA Mario HERNÁNDEZ-GUZMÁN Nina MONTOYA-CIRIACO Luc DENDOOVEN Marina Olivia FRANCO-HERNÁNDEZ Paulina ESTRADA-DE LOS SANTOS María Soledad VÁSQUEZ-MURRIETA | 2023 | Pedosphere2023，33，2： | 0 |
| 13 | Arsenic and chromium resistance mechanisms in the Micrococcus luteus group显示文摘High arsenic(As)and chromium(Cr)concentrations are currently receiving attention because of their negative effects on the environment and human health.Microorganisms inhabiting contaminated environments have developed resistance mechanisms against the toxicity of these pollutants.Indeed,members of the bacterial genus Micrococcus have been isolated from different toxic metal-contaminated environments;however,knowledge concerning its resistance mechanisms to As and Cr toxicity remains limited.Micrococcus luteus strains(An24,Mh,NE2TL6,and NE2TTS4)were isolated from the endosphere and soil of two heavy metal-contaminated sites in Mexico to identify differences in the resistance mechanisms by the M.luteus group.The strains were resistant to As(As^(3+)and As^(5+)),chromate,dichromate,cobalt,copper,nickel,and zinc.Genome analysis indicated that the heavy metal-resistant strains(An24,Mh,NE2TL6,and NE2TTS4)could be assigned to the M.luteus group and had more heavy metal-resistant genes(transporters,chaperones,and enzymes)compared to reference strains of the M.luteus group,M.luteus NCTC 2665^(T)and Micrococcus endophyticus JCM 16951^(T).The resistant bacteria were able to biotransform As^(3+)and As^(5+)through a carbon source-dependent mechanism.The biotransformation of As5+was potentially carried out in the cytoplasm through a thioredoxin-dependent pathway,which may be coupled with biosorption.A qualitative analysis of organic acids(OAs)identified a change in the OA profile of the metal-resistant strains that was As-or Cr-dependent.Our genomic and phenotypic findings suggest that the four M.luteus group strains evaluated in the current study have developed resistance mechanisms that may enable their survival in contaminated sites. | Ivan ARROYO-HERRERA Brenda ROMÁN-PONCE Rafael BUSTAMANTE-BRITO Joseph GUEVARA-LUNA Erika Yanet TAPIA-GARCÍA Violeta LARIOS-SERRATO Nannan ZHANG Paulina ESTRADA-DE LOS SANTOS En Tao WANG María Soledad VÁSQUEZ-MURRIETA | 2023 | Pedosphere2023，33，4： | 0 |
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