Effects of polyamines on cadmium- and copper-mediated alterations in wheat (Triticum aestivum L) and sunflower (Helianthus annuus L) seedling membrane fluidity
| Autor: | Maria Patricia Benavides, Sandra V. Verstraeten, Laura Recalde, María Daniela Groppa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Time Factors Membrane Fluidity WHEAT Biophysics COPPER Spermine SUNFLOWER 01 natural sciences Biochemistry Plant Roots Biophysical Phenomena Ciencias Biológicas CADMIUM 03 medical and health sciences chemistry.chemical_compound MEMBRANE FLUIDITY Helianthus annuus Membrane fluidity Polyamines Molecular Biology Ciencias de las Plantas Botánica Triticum biology Chemistry fungi food and beverages biology.organism_classification Biofísica Sunflower POLYAMINES Spermidine Horticulture 030104 developmental biology Germination Seedling Seedlings Putrescine Helianthus CIENCIAS NATURALES Y EXACTAS Copper 010606 plant biology & botany Cadmium |
| Zdroj: | Archives of biochemistry and biophysics. 654 |
| ISSN: | 1096-0384 |
| Popis: | We investigated if wheat (Wh) and sunflower (Sf) plants watering with 1 mM CdCl2 or CuCl2 for 5–15 d during germination and seedling altered membrane fluidity (MF) of their leaves and roots, and if plant pre-treatment with the polyamines (PAs) putrescine (Put), spermidine (Spd) or spermine (Spm) prevented those alterations. Cd impaired Wh and Sf growth, while Cu only affected Sf growth. Cu and Cd increased MF of leaves of both plant species, while Cd decreased MF of Sf roots. Plant treatment for 15 d with 0.1 mM Put, Spd or Spm did not affect plant growth and had opposed effects on the MF of both plants. Finally, Wh and Sf were pre-treated with PAs for either 5 or 10 days followed by metal treatment until day 15. While Put did not affect membrane MF, Spd and Spm decreased it between 5 and 10 d of plant treatment. Together, experimental results demonstrate that during plant development (a) Cd and Cu have noxious effects on plants membrane biophysical properties that could be partially responsible of their toxicity, and (b) this deleterious effect could be only partially prevented by plant pretreatment with the PAs. Fil: Benavides, Maria Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; Argentina Fil: Groppa, María Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; Argentina Fil: Recalde, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; Argentina Fil: Verstraeten, Sandra Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; Argentina |
| Databáze: | OpenAIRE |
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