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Effects of nitric oxide-releasing nanoparticles on neotropical tree seedlings submitted to acclimation under full sun in the nursery.
Lopes-Oliveira, Patrícia Juliana; Gomes, Diego Genuário; Pelegrino, Milena Trevisan; Bianchini, Edmilson; Pimenta, José Antonio; Stolf-Moreira, Renata; Seabra, Amedea Barozzi; Oliveira, Halley Caixeta.
Afiliación
  • Lopes-Oliveira PJ; Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil.
  • Gomes DG; Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil.
  • Pelegrino MT; Center for Natural and Human Sciences, Universidade Federal do ABC (UFABC), Av. dos Estados 5001, CEP 09210-580, Santo André, SP, Brazil.
  • Bianchini E; Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil.
  • Pimenta JA; Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil.
  • Stolf-Moreira R; Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil.
  • Seabra AB; Center for Natural and Human Sciences, Universidade Federal do ABC (UFABC), Av. dos Estados 5001, CEP 09210-580, Santo André, SP, Brazil.
  • Oliveira HC; Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil. halley@uel.br.
Sci Rep ; 9(1): 17371, 2019 11 22.
Article en En | MEDLINE | ID: mdl-31758079
Polymeric nanoparticles have emerged as carrier systems for molecules that release nitric oxide (NO), a free radical involved in plant stress responses. However, to date, nanoencapsulated NO donors have not been applied to plants under realistic field conditions. Here, we verified the effects of free and nanoencapsulated NO donor, S-nitroso-mercaptosuccinic acid (S-nitroso-MSA), on growth, physiological and biochemical parameters of neotropical tree seedlings kept under full sunlight in the nursery for acclimation. S-nitroso-MSA incorporation into chitosan nanoparticles partially protected the NO donor from thermal and photochemical degradation. The application of nanoencapsulated S-nitroso-MSA in the substrate favoured the growth of seedlings of Heliocarpus popayanensis, a shade-intolerant tree. In contrast, free S-nitroso-MSA or nanoparticles containing non-nitrosated mercaptosuccinic acid reduced photosynthesis and seedling growth. Seedlings of Cariniana estrellensis, a shade-tolerant tree, did not have their photosynthesis and growth affected by any formulations, despite the increase of foliar S-nitrosothiol levels mainly induced by S-nitroso-MSA-loaded nanoparticles. These results suggest that depending on the tree species, nanoencapsulated NO donors can be used to improve seedling acclimation in the nursery.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Luz Solar / Donantes de Óxido Nítrico / Plantones / Nanopartículas / Aclimatación / Óxido Nítrico Idioma: En Revista: Sci Rep Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Luz Solar / Donantes de Óxido Nítrico / Plantones / Nanopartículas / Aclimatación / Óxido Nítrico Idioma: En Revista: Sci Rep Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido