Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/50453
Title: Effect of PEG and ABA on desiccation tolerance and storage of Magnolia ovata (A.St.-Hil.) Spreng. Seeds
Keywords: Enzymatic activity
Forest seeds
Intermediate seeds
Proteins
Atividade enzimática
Sementes florestais
Sementes intermediárias
Proteínas
Issue Date: Feb-2022
Publisher: ABRATES - Associação Brasileira de Tecnologia de Sementes
Citation: PELISSARI, F. et al. Effect of PEG and ABA on desiccation tolerance and storage of Magnolia ovata (A.St.-Hil.) Spreng. Seeds. Journal of Seed Science, Londrina, v. 44, e202244002, 2022. DOI: http://dx.doi.org/10.1590/ 2317-1545v44256114.
Abstract: Several studies have successfully used polyethylene glycol (PEG) and/or abscisic acid (ABA) to reinduce desiccation tolerance in germinated seeds of orthodox species, improving our understanding of the mechanisms that underlie this trait. In this context, treatments with PEG and ABA were tested to assess their efficiency in reducing the sensitivity to desiccation and increasing the storage period of Magnolia ovata seeds. The drying of seeds to 10% water did not significantly affect germination, nor was germination impaired in seeds that were dried and treated with ABA. However, seeds treated with PEG had lower viability. After storage, ABA-treated seeds with as low as 5% water content (WC) had higher germination rates, the treatment with 100 µM ABA providing the greatest storage capacity. No changes were observed in the activity of catalase, peroxidase, or superoxide dismutase or in the abundance of total or heat-resistance proteins.
URI: http://repositorio.ufla.br/jspui/handle/1/50453
Appears in Collections:DAG - Artigos publicados em periódicos
DCF - Artigos publicados em periódicos



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