Physiological and molecular effects of TiO2 nanoparticle application on UV-A radiation stress responses in Solanum lycopersicum L.
| Primer Autor |
Tighe-Neira, Ricardo
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| Co-autores |
Sanchez-Campos, Yissel
Carcamo-Fincheira, Paz
Gonzalez-Villagra, Jorge
Jorquera-Fontena, Emilio
Acevedo, Patricio
Soto-Cerda, Braulio
Nunes-Nesi, Adriano
Inostroza-Blancheteau, Claudio
|
| Título |
Physiological and molecular effects of TiO2 nanoparticle application on UV-A radiation stress responses in Solanum lycopersicum L.
|
| Editorial |
SPRINGER WIEN
|
| Revista |
PROTOPLASMA
|
| Lenguaje |
en
|
| Resumen |
Nanoparticles (NPs) of titanium dioxide (TiO2) alter photosynthetic and biochemical parameters in Solanum lycopersicum L., possibly due to their photocatalytic properties given by energy absorption in the UV-A range, however, the joint effects TiO2 NPs and UV-A radiation are not well understood. This work evaluates the combined responses of TiO2 NPs and UV-A radiation at the physiological and molecular levels in S. lycopersicum. In a split growth chamber, the presence (UV-A +) and absence (UV-A -) of UV-A were combined with 0 (water as a control), and 1000 and 2000 mg L-1 of TiO2 NPs applied at sowing. At the end of exposure (day 30 after sowing), the photosynthetic performance was determined, and biochemical and molecular parameters were evaluated in leaf tissues. Better photochemical performance in UV-A + than UV-A - in control plants was observed, but these effects decreased in 1000 and 2000 mg TiO2 L-1, similar to net CO2 assimilation. A clear increase in photosynthetic pigment levels was recorded under UV-A + compared to UV-A - that was positively correlated with photosynthetic parameters. A concomitant increase in total phenols was observed on adding TiO2 in UV-A - conditions, while a decreasing trend in lipid peroxidation was observed for the same treatments. There was an increase in psbB gene expression under TiO2/UV-A + treatments, and a reduced expression of rbcS and rbcL under UV-A - . These results suggest that the reduction in photosynthetic performance on applying high doses of TiO2 NPs is probably due to biochemical limitation, while UV-A achieves the same result via the photochemical component.
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| Fecha Publicación |
2023
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| Tipo de Recurso |
artículo original
|
| doi |
10.1007/s00709-023-01868-0
|
| Formato Recurso |
PDF
|
| Palabras Claves |
Photosynthesis
Titanium dioxide
Gene expression
Antioxidant system
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| Ubicación del archivo | |
| Categoría OCDE |
Ciencias vegetales
Biología celular
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| Materias |
Fotosíntesis
Dióxido de titanio
La expresion genica
Sistema antioxidante
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| Página de inicio (Recomendado-único) |
1527.0
|
| Página final (Recomendado-único) |
1537
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| Identificador del recurso (Mandatado-único) |
artículo original
|
| Versión del recurso (Recomendado-único) |
versión publicada
|
| Derechos de acceso |
restringido
|
| Access Rights |
restringido
|
| Id de Web of Science |
WOS:000999953200001
|
| ISSN |
0033-183X
|
| Tipo de ruta |
verde / hibrido
|
| Categoría WOS |
Ciencias vegetales
Biología celular
|
| Referencia del Financiador (Mandatado si es aplicable-repetible) |
ANID-FONDECYT 1201749
UCT VIPUCT No2019 EM-RT-05
ANID FEQUIP2018-CI-04
ANID FONDECYT 1201749
UCT VIP 2019 EM-RT-05
|
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