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Article

24-Epibrasinolide Modulates the Vase Life of Lisianthus Cut Flowers by Modulating ACC Oxidase Enzyme Activity and Physiological Responses

1
Department of Horticultural Sciences, Faculty of Agriculture, Urmia University, Urmia 5756151818, Iran
2
Centro Tecnológico de la Carne de Galicia, Parque Tecnológico de Galicia, rúa Galicia n° 4, San Cibrao das Viñas, 32900 Ourense, Spain
3
Environmental Health Sciences, Faculty of Communication, Arts and Sciences, Canadian University Dubai, Dubai 117781, United Arab Emirates
4
Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, 32004 Ourense, Spain
*
Authors to whom correspondence should be addressed.
Academic Editors: Lina Raudone and Nijole Savickienė
Plants 2021, 10(5), 995; https://doi.org/10.3390/plants10050995
Received: 20 April 2021 / Revised: 13 May 2021 / Accepted: 14 May 2021 / Published: 17 May 2021
(This article belongs to the Special Issue Trends in Plants Phytochemistry and Bioactivity Analysis)
Ethylene is the most important factor playing roles in senescence and deterioration of harvested crops including cut flowers. Brassinosteroids (BRs), as natural phytohormones, have been reported to differently modulate ethylene production and related senescence processes in different crops. This study was carried out to determine the effects of different levels of 24-epibrassinolide (EBL) on ACC oxidase enzyme activity, the final enzyme in ethylene biosynthesis pathway, vase life, and senescence rate in lisianthus cut flowers. Harvested flowers were treated with EBL (at 0, 3, 6, and 9 µmol/L) and kept at 25 °C for 15 days. The ACC oxidase activity, water absorption, malondialdehyde (MDA) production and vase solution absorption rates, chlorophyll and anthocyanin contents, and the vase life of the flowers were evaluated during and at the end of storage. EBL at 3 µmol/L significantly (p ≤ 0.01) enhanced the flower vase life by decreasing the ACC oxidase activity, MDA production and senescence rates, and enhancing chlorophyll and anthocyanin biosynthesis and accumulation, relative water content, and vase solution absorption rates. By increasing the concentration, EBL negatively affected the flower vase life and postharvest quality probably via enhancing the ACC oxidase enzyme activity and subsequent ethylene production. EBL at 6 and 9 µmol/L and in a concentration dependent manner, enhanced the ACC oxidase activity and MDA production rate and decreased chlorophyll and anthocyanin accumulation and water absorption rate. The results indicate that the effects of brassinosteroids on ethylene production and physiology of lisianthus cut flowers is highly dose dependent. View Full-Text
Keywords: lisianthus; ACC oxidase; ethylene; anthocyanins; malondialdehyde; vase life lisianthus; ACC oxidase; ethylene; anthocyanins; malondialdehyde; vase life
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MDPI and ACS Style

Darvish, M.; Shirzad, H.; Asghari, M.; Noruzi, P.; Alirezalu, A.; Pateiro, M.; Takshe, A.; Lorenzo, J.M. 24-Epibrasinolide Modulates the Vase Life of Lisianthus Cut Flowers by Modulating ACC Oxidase Enzyme Activity and Physiological Responses. Plants 2021, 10, 995. https://doi.org/10.3390/plants10050995

AMA Style

Darvish M, Shirzad H, Asghari M, Noruzi P, Alirezalu A, Pateiro M, Takshe A, Lorenzo JM. 24-Epibrasinolide Modulates the Vase Life of Lisianthus Cut Flowers by Modulating ACC Oxidase Enzyme Activity and Physiological Responses. Plants. 2021; 10(5):995. https://doi.org/10.3390/plants10050995

Chicago/Turabian Style

Darvish, Mohammad, Habib Shirzad, Mohammadreza Asghari, Parviz Noruzi, Abolfazl Alirezalu, Mirian Pateiro, Aseel Takshe, and José M. Lorenzo. 2021. "24-Epibrasinolide Modulates the Vase Life of Lisianthus Cut Flowers by Modulating ACC Oxidase Enzyme Activity and Physiological Responses" Plants 10, no. 5: 995. https://doi.org/10.3390/plants10050995

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