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Publications

Journal Article Epublish 3 citations

PubMed: 38413850 DOI: 10.1186/s12870-024-04763-9

Physiological and agronomical traits effects of titanium dioxide nanoparticles in seedlings of Solanum lycopersicum L.

BMC Plant Biol 24(1):146

Authors: Ricardo Tighe-Neira, Marjorie Reyes-Díaz, Adriano Nunes-Nesi, Jaciara Lana-Costa, Gonzalo Recio, Erico R Carmona, Patricio Acevedo, Zed Rengel, Claudio Inostroza-Blancheteau

Affiliations

  • Programa de Doctorado en Ciencias Agropecuarias, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile.
  • Laboratorio de Fisiología y Biotecnología Vegetal, Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile.
  • Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile.
  • Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile.
  • Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, 36570-900, Minas Gerais, Brazil.
  • Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Lientur 1457, Concepción, Chile.
  • Laboratorio de Bio-nanomateriales, Facultad de Recursos Naturales Renovables, Universidad Arturo Prat, Av. Arturo Prat s/n Campus Huayquique, Iquique, Chile.
  • Departamento de Ciencias Físicas, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile. Center for Optics and Photonics, Universidad de Concepcion, Casilla, Concepción, 4012, Chile.
  • Soil Science and Plant Nutrition, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia.
  • Institute for Adriatic Crops and Karst Reclamation, Split, Croatia.
  • Laboratorio de Fisiología y Biotecnología Vegetal, Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile.
  • Núcleo de Investigación en Producción Alimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile.

Abstract

BACKGROUND

Titanium dioxide nanoparticles (TiO NPs) have been reported to have contrasting effects on plant physiology, while their effects on sugar, protein, and amino acid metabolism are poorly understood. In this work, we evaluated the effects of TiO NPs on physiological and agronomical traits of tomato (Solanum lycopersicum L.) seedlings. Tomato seeds were treated with TiO NPs (1000 and 2000 mg L), TiO microparticles (µPs, 2000 mg L) as the size control, and ultrapure water as negative control.

RESULTS

The dry matter of stems (DMs), leaves (DMl) and total dry matter (DMt) decreased as particle concentration increased. This trend was also observed in the maximum quantum yield of light-adapted photosystem II (PSII) (F´/F´), the effective quantum yield of PSII (ΦPSII), and net photosynthesis (P). The concentrations of sugars, total soluble proteins, and total free amino acids were unaffected, but there were differences in the daily dynamics of these compounds among the treatments.

CONCLUSION

Our results suggest that treating tomato seeds with TiO might affect PSII performance, net photosynthesis and decrease biomass production, associated with a concentration- and size-related effect of TiO particles.

MeSH

Seeds, Botany, Photosynthesis, Nanoparticles, Amino Acids, Sugars

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