Tolerance of Eugenia dysenterica to Aluminum: Germination and Plant Growth
| Autor: | Jacson Zuchi, Arthur Almeida Rodrigues, Sebastião Carvalho Vasconcelos Filho, Caroline Müller, Alan Carlos Costa, Juliana de Fátima Sales, Cássia Lino Rodrigues, Adinan Alves da Silva, Danilo Pereira Barbosa, Douglas Almeida Rodrigues |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Chlorophyll a Antioxidant root growth medicine.medical_treatment Plant Science Biology 01 natural sciences cagaita cerrado chemistry.chemical_compound lcsh:Botany medicine Eugenia dysenterica Ecology Evolution Behavior and Systematics Starch grain Al pollution Ecology food and beverages 04 agricultural and veterinary sciences Al tolerance Plant cell lcsh:QK1-989 Horticulture chemistry Germination visual_art Soil water 040103 agronomy & agriculture visual_art.visual_art_medium 0401 agriculture forestry and fisheries Bark accumulation 010606 plant biology & botany |
| Zdroj: | Plants Volume 8 Issue 9 Plants, Vol 8, Iss 9, p 317 (2019) |
| ISSN: | 2223-7747 |
| Popis: | Native Cerrado plants are exposed to soils with low pH and high availability of Al. In this study, we measured the Al content in adult plants, and investigated the effects of various Al doses on germination and early development of Eugenia dysenterica plants. For germination tests, the seeds were soaked in Al solution and evaluated for twenty days in growth chambers. In a second experiment, young plants were cultivated in hydroponic systems with various Al concentrations to evaluate the morphological, anatomical and physiological characteristics of E. dysenterica. Anatomical changes and low germinative vigor were observed in seeds germinated in 600 and 800 &mu mol Al3+ L&minus 1. In the hydroponic system, 200 &mu 1 stimulated root growth in young plants. The activity of antioxidant enzymes and the accumulation of phenolic compounds were greatest at the highest Al doses, preventing changes in gas exchange and chlorophyll a fluorescence. Starch grain accumulation was noted in plant cells exposed to 200 and 400 &mu 1. Adult E. dysenterica trees also accumulated Al in leaves, bark and seeds. These data suggest that E. dysenterica is tolerant to Al. |
| Databáze: | OpenAIRE |
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