Aluminum influence on Hancornia speciosa seedling emergence, nutrient accumulation, growth and root anatomy
| Autor: | Douglas Almeida Rodrigues, Sebastião Carvalho Vasconcelos-Filho, Kelly Juliane Telles Nascimento, Juliana de Fátima Sales, Glicélia Pereira Silva, Arthur Almeida Rodrigues, Eduardo Matheus Guimarães Teles, Larissa Saeki Rehn, Cássia Lino Rodrigues |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Ecology biology Starch Chromosomal translocation 04 agricultural and veterinary sciences Plant Science Anatomy Hydroponics biology.organism_classification 01 natural sciences Chloroplast Cell wall chemistry.chemical_compound Nutrient chemistry Seedling Botany 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Plant nutrition Ecology Evolution Behavior and Systematics 010606 plant biology & botany |
| Zdroj: | Flora. :9-14 |
| ISSN: | 0367-2530 |
| Popis: | Aluminum (Al) exposure effects on Hancornia speciosa Gomes were investigated via culture in a nutrient solution containing 0 (control), 300 and 600 μmol Al L −1 . Seedling emergence, nutrient accumulation, growth and root anatomy were evaluated. Seedling emergence, emergence speed index and root diameter under hydroponic cultivation were significantly reduced in the Al treatments, while Al promoted root growth at the lowest concentration. Al also altered macronutrient translocation in the analyzed plant organs, particularly stem and leaves. This indicates that H. speciosa seeds display sensitivity to Al 3+ , with negative effects on seedling emergence. The presence of Al in the cell walls and chloroplasts and/or the accumulation of phenolic compounds and starch represent a set of mechanisms that may possibly play a role in plant Al detoxification, allowing H. speciosa to survive in the presence of high concentrations of this cation. |
| Databáze: | OpenAIRE |
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