Biochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development

The present investigation was carried out to explore the biochemical changes and antioxidant variations, including non-enzymatic and enzymatic antioxidant variations, in the leaves of different varieties of date palm (<i>Phoenix dactylifera</i> L.) belonging to the early, mid-, and late-...

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Autores principales:	Saeed R. H. A. Al Shamsi, Gabriel A. Rabert, Shyam S. Kurup, Mohammed Abdul Muhsen Alyafei, Abdul Jaleel
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	date palm enzymes flowering antioxidants flower induction antioxidant enzymes Botany QK1-989
Acceso en línea:	https://doaj.org/article/cf2bbc5b0246411d8d76bbad2a4050d8
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spelling	oai:doaj.org-article:cf2bbc5b0246411d8d76bbad2a4050d82021-11-25T18:47:38ZBiochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development10.3390/plants101125502223-7747https://doaj.org/article/cf2bbc5b0246411d8d76bbad2a4050d82021-11-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2550https://doaj.org/toc/2223-7747The present investigation was carried out to explore the biochemical changes and antioxidant variations, including non-enzymatic and enzymatic antioxidant variations, in the leaves of different varieties of date palm (<i>Phoenix dactylifera</i> L.) belonging to the early, mid-, and late-flowering categories in the United Arab Emirates. The changes in the protein and phenol concentration; the ascorbic acid, reduced glutathione, and α-tocopherol contents; and the activity of peroxidase and polyphenol oxidase were studied in the leaves during the preflowering, flowering, and postflowering stages of the date palms. Two varieties each from the early (Shaham, Khanezi), mid- (Barhee, Nabthasaif), and late- (Khasab, Fardh) flowering types were used in this study. The protein content in the leaves was higher in the early flowering varieties during the preflowering stage but lower in the other two varieties. The phenol content showed an opposite trend to the protein. There was significant variation in the ascorbic acid content and a reduction in glutathione and α-tocopherol between the leaves of different varieties. Similarly, the activity of the antioxidant enzyme ascorbate peroxidase in the leaves was higher during the preflowering stage in all varieties. The superoxide dismutase (SOD), polyphenol oxidase (PPO), and catalase (CAT) activity was highest in the Bharhee leaves for all the stages. The peroxidase activity (POD) was highest in the Fardh variety of date palm, whereas the Khanezi variety exhibited the lowest activity. This study can be used as a baseline for developing more protocols for understanding the possible roles of biochemicals, antioxidants, antioxidant enzymes, and their interactions in the regulation of flower development in different date palm varieties.Saeed R. H. A. Al ShamsiGabriel A. RabertShyam S. KurupMohammed Abdul Muhsen AlyafeiAbdul JaleelMDPI AGarticledate palmenzymesfloweringantioxidantsflower inductionantioxidant enzymesBotanyQK1-989ENPlants, Vol 10, Iss 2550, p 2550 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	date palm enzymes flowering antioxidants flower induction antioxidant enzymes Botany QK1-989
spellingShingle	date palm enzymes flowering antioxidants flower induction antioxidant enzymes Botany QK1-989 Saeed R. H. A. Al Shamsi Gabriel A. Rabert Shyam S. Kurup Mohammed Abdul Muhsen Alyafei Abdul Jaleel Biochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development
description	The present investigation was carried out to explore the biochemical changes and antioxidant variations, including non-enzymatic and enzymatic antioxidant variations, in the leaves of different varieties of date palm (<i>Phoenix dactylifera</i> L.) belonging to the early, mid-, and late-flowering categories in the United Arab Emirates. The changes in the protein and phenol concentration; the ascorbic acid, reduced glutathione, and α-tocopherol contents; and the activity of peroxidase and polyphenol oxidase were studied in the leaves during the preflowering, flowering, and postflowering stages of the date palms. Two varieties each from the early (Shaham, Khanezi), mid- (Barhee, Nabthasaif), and late- (Khasab, Fardh) flowering types were used in this study. The protein content in the leaves was higher in the early flowering varieties during the preflowering stage but lower in the other two varieties. The phenol content showed an opposite trend to the protein. There was significant variation in the ascorbic acid content and a reduction in glutathione and α-tocopherol between the leaves of different varieties. Similarly, the activity of the antioxidant enzyme ascorbate peroxidase in the leaves was higher during the preflowering stage in all varieties. The superoxide dismutase (SOD), polyphenol oxidase (PPO), and catalase (CAT) activity was highest in the Bharhee leaves for all the stages. The peroxidase activity (POD) was highest in the Fardh variety of date palm, whereas the Khanezi variety exhibited the lowest activity. This study can be used as a baseline for developing more protocols for understanding the possible roles of biochemicals, antioxidants, antioxidant enzymes, and their interactions in the regulation of flower development in different date palm varieties.
format	article
author	Saeed R. H. A. Al Shamsi Gabriel A. Rabert Shyam S. Kurup Mohammed Abdul Muhsen Alyafei Abdul Jaleel
author_facet	Saeed R. H. A. Al Shamsi Gabriel A. Rabert Shyam S. Kurup Mohammed Abdul Muhsen Alyafei Abdul Jaleel
author_sort	Saeed R. H. A. Al Shamsi
title	Biochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development
title_short	Biochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development
title_full	Biochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development
title_fullStr	Biochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development
title_full_unstemmed	Biochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development
title_sort	biochemical changes and antioxidant variations in date palm (<i>phoenix dactylifera</i> l.) varieties during flower induction and development
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/cf2bbc5b0246411d8d76bbad2a4050d8
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Biochemical Changes and Antioxidant Variations in Date Palm (<i>Phoenix dactylifera</i> L.) Varieties during Flower Induction and Development

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