The effects of two preservatives on peroxidase activity and total protein content in Strelitzia reginae during cold storage

The effects of two preservatives on peroxidase activity and total protein content in Strelitzia reginae during cold storage

This study aimed to assess changes in peroxidase activity and total protein content of cut flowers of Strelitzia reginae that were treated with the chemical preservatives 8-hydroxyquinoline citrate (8-HQC) or chlorine during cold storage. The bases of the cut flowers were immersed in 1.5 L of tap wa...

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Bibliographic Details
Published in:Horticulture, environment and biotechnology Vol. 57; no. 2; pp. 148 - 155
Main Authors: Vieira, Marcos R. da S., Pessoa, Luiz G. M., Júnior, Walter S. E., Leal, Ygor H., da Silva, Luzia F., Silva, Rafael C., dos Santos, Eduardo S., Amorim, Thialla L., de Medeiros, Damina C.
Format: Journal Article
Language:English
Published: Korea Korean Society for Horticultural Science 01-04-2016
한국원예학회
Subjects:
Agriculture
Biomedical and Life Sciences
Life Sciences
Plant Breeding/Biotechnology
Plant Ecology
Plant Physiology
Research Report
농학
senescence
holding solution
postharvest
ornamental plant
bird-of-paradise
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Summary:This study aimed to assess changes in peroxidase activity and total protein content of cut flowers of Strelitzia reginae that were treated with the chemical preservatives 8-hydroxyquinoline citrate (8-HQC) or chlorine during cold storage. The bases of the cut flowers were immersed in 1.5 L of tap water with 48 h pulsing treatments (a control with no chemical preservatives (0 mg·L -1 , 100 mg·L -1 chlorine, 250 mg·L -1 8-HQC or 500 mg·L -1 8-HQC) during cold storage at 10.5°C and 90% relative humidity. The solutions were then replaced with tap water and the cut flowers remained in cold storage for 12 days. For biochemical characterization of peroxidase activity and total protein content, tissue samples (sepals, petals, stems, and bracts) were collected and analyzed at 0, 4, 8, and 12 days after treatment. There was an increase in peroxidase activity in petals, stems, and bracts and a decrease in total protein content, regardless of the treatment used. In this experiment, therefore, differences in peroxidase activity and total protein content due to treatments with 8-HQC or chlorine were not identified.
Bibliography:G704-000103.2016.57.2.005
ISSN:2211-3452
2211-3460
DOI:10.1007/s13580-016-0109-6