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Characterization of siderophore-producing microorganisms associated to plants from high-Andean heavy metal polluted soil from Callejón de Huaylas (Ancash, Perú).
Tamariz-Angeles, Carmen; Huamán, Gabriela D; Palacios-Robles, Edson; Olivera-Gonzales, Percy; Castañeda-Barreto, Alberto.
Afiliação
  • Tamariz-Angeles C; Centro de Investigación de la Biodiversidad y Recursos Genéticos de Ancash, Facultad de Ciencias, Universidad Nacional Santiago Antúnez de Mayolo, Av. Centenario 200, 02002, Independencia, Huaraz, Ancash, Peru. Electronic address: ctamariz@unasam.edu.pe.
  • Huamán GD; Facultad de Ciencias del Ambiente, Universidad Nacional Santiago Antúnez de Mayolo, Av. Centenario 200, 02002, Independencia, Huaraz, Ancash, Peru. Electronic address: gabrielahdlc@hotmail.com.
  • Palacios-Robles E; Facultad de Ciencias del Ambiente, Universidad Nacional Santiago Antúnez de Mayolo, Av. Centenario 200, 02002, Independencia, Huaraz, Ancash, Peru. Electronic address: epalaciosr@unasam.edu.pe.
  • Olivera-Gonzales P; Centro de Investigación de la Biodiversidad y Recursos Genéticos de Ancash, Facultad de Ciencias, Universidad Nacional Santiago Antúnez de Mayolo, Av. Centenario 200, 02002, Independencia, Huaraz, Ancash, Peru. Electronic address: poliverag@unasam.edu.pe.
  • Castañeda-Barreto A; Centro de Investigación de la Biodiversidad y Recursos Genéticos de Ancash, Facultad de Ciencias, Universidad Nacional Santiago Antúnez de Mayolo, Av. Centenario 200, 02002, Independencia, Huaraz, Ancash, Peru. Electronic address: acastanedab@unasam.edu.pe.
Microbiol Res ; 250: 126811, 2021 Sep.
Article em En | MEDLINE | ID: mdl-34242923
Endophytic and rhizospheric microorganisms associated with six native plants adapted to heavy metal polluted soil from Punta Olímpica and Chahuapampa, located in Callejón de Huaylas mountains, were evaluated as potential candidates for technologies to clean polluted ecosystems. It was selected 14 bacteria and 9 fungi strains by their iron and/or aluminum siderophore production trait, where BEP17-Dm showed higher production. According to the 16S rDNA analysis, bacteria belong to Pseudomonas, Bacillus, and Achromobacter genera, whereas by ITS analysis fungi belong to Talaromyces, Hypoxylon, Tolypocladium, and Penicillium. All bacteria strains tolerated lead (2-8 mM) and eigth tolerated cadmium (1-6 mM); also all fungi tolerated lead (9-70 mM) and cadmium (3-10 mM). Two bacteria and six fungi solubilized cadmium carbonate, while eleven bacteria and two fungi solubilized tricalcium phosphate, where P. japonica BEP18-Dm and B. subtilis BRU16-Sr exhibited higher solubilization index. None strains solubilized lead carbonate. BEP18-Dm produced higher concentration of IAA (53.42 µgml-1); while six bacteria and all fungi strains produced a low concentration of auxins. Medicago sativa seedlings inoculated with BEP17-Dm, BEP18-Dm, or BRU16-Sr showed more surviving percentage under in vitro culture in presence of Cd, Pb (0.5-1.0 mM), or Al (2.5-5.0 mM). Finally, it is the first report of siderophore-producing microorganisms from polluted soil of Callejón de Huaylas highlands, interestedly they displayed metabolic properties useful to enhance phytoremediation and biotechnology application.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Plantas / Poluentes do Solo / Bactérias / Sideróforos / Metais Pesados / Fungos Tipo de estudo: Risk_factors_studies País/Região como assunto: America do sul / Peru Idioma: En Revista: Microbiol Res Assunto da revista: MICROBIOLOGIA / SAUDE AMBIENTAL Ano de publicação: 2021 Tipo de documento: Article País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Plantas / Poluentes do Solo / Bactérias / Sideróforos / Metais Pesados / Fungos Tipo de estudo: Risk_factors_studies País/Região como assunto: America do sul / Peru Idioma: En Revista: Microbiol Res Assunto da revista: MICROBIOLOGIA / SAUDE AMBIENTAL Ano de publicação: 2021 Tipo de documento: Article País de publicação: Alemanha