Persistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen

Selenium (Se) is an important micronutrient for living organisms, since it is involved in several physiological and metabolic processes. Biofortification with Se increases the nutritional and qualitative values of foods in Se-deficient regions and increases tolerance to oxidative stress in olive tre...

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Autores principales:	Alberto Marco Del Pino, Luca Regni, Roberto D’Amato, Alessandro Di Michele, Primo Proietti, Carlo Alberto Palmerini
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	<i>Olea europaea</i> L. selenium biofortification oxidative stress olive pollen cytosolic Ca<sup>2+</sup> Botany QK1-989
Acceso en línea:	https://doaj.org/article/4a8d31b004604174beb6ed175d0b0b2a
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spelling	oai:doaj.org-article:4a8d31b004604174beb6ed175d0b0b2a2021-11-25T18:44:52ZPersistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen10.3390/plants101122902223-7747https://doaj.org/article/4a8d31b004604174beb6ed175d0b0b2a2021-10-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2290https://doaj.org/toc/2223-7747Selenium (Se) is an important micronutrient for living organisms, since it is involved in several physiological and metabolic processes. Biofortification with Se increases the nutritional and qualitative values of foods in Se-deficient regions and increases tolerance to oxidative stress in olive trees. Many studies have shown that Se, in addition to improving the qualitative and nutritional properties of EVO oil, also improves the plant’s response to abiotic stress. This study addressed this issue by monitoring the effects of Se on cytosolic Ca<sup>2+</sup> and on the germination of olive pollen grains in oxidative stress. The olive trees subjected to treatment with Na-selenate in the field produced pollen with a Se content 6–8 times higher than the controls, even after 20 months from the treatment. Moreover, part of the micronutrient was organic in selenium methionine. The higher selenium content did not produce toxic effects in the pollen, rather it antagonized the undesirable effects of oxidative stress in the parameters under study. The persistence of the beneficial effects of selenium observed over time in pollens, in addition to bringing out an undisputed adaptability of olive trees to the micronutrient, suggested the opportunity to reduce the number of treatments in the field.Alberto Marco Del PinoLuca RegniRoberto D’AmatoAlessandro Di MichelePrimo ProiettiCarlo Alberto PalmeriniMDPI AGarticle<i>Olea europaea</i> L.selenium biofortificationoxidative stressolive pollencytosolic Ca<sup>2+</sup>BotanyQK1-989ENPlants, Vol 10, Iss 2290, p 2290 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	<i>Olea europaea</i> L. selenium biofortification oxidative stress olive pollen cytosolic Ca<sup>2+</sup> Botany QK1-989
spellingShingle	<i>Olea europaea</i> L. selenium biofortification oxidative stress olive pollen cytosolic Ca<sup>2+</sup> Botany QK1-989 Alberto Marco Del Pino Luca Regni Roberto D’Amato Alessandro Di Michele Primo Proietti Carlo Alberto Palmerini Persistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen
description	Selenium (Se) is an important micronutrient for living organisms, since it is involved in several physiological and metabolic processes. Biofortification with Se increases the nutritional and qualitative values of foods in Se-deficient regions and increases tolerance to oxidative stress in olive trees. Many studies have shown that Se, in addition to improving the qualitative and nutritional properties of EVO oil, also improves the plant’s response to abiotic stress. This study addressed this issue by monitoring the effects of Se on cytosolic Ca<sup>2+</sup> and on the germination of olive pollen grains in oxidative stress. The olive trees subjected to treatment with Na-selenate in the field produced pollen with a Se content 6–8 times higher than the controls, even after 20 months from the treatment. Moreover, part of the micronutrient was organic in selenium methionine. The higher selenium content did not produce toxic effects in the pollen, rather it antagonized the undesirable effects of oxidative stress in the parameters under study. The persistence of the beneficial effects of selenium observed over time in pollens, in addition to bringing out an undisputed adaptability of olive trees to the micronutrient, suggested the opportunity to reduce the number of treatments in the field.
format	article
author	Alberto Marco Del Pino Luca Regni Roberto D’Amato Alessandro Di Michele Primo Proietti Carlo Alberto Palmerini
author_facet	Alberto Marco Del Pino Luca Regni Roberto D’Amato Alessandro Di Michele Primo Proietti Carlo Alberto Palmerini
author_sort	Alberto Marco Del Pino
title	Persistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen
title_short	Persistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen
title_full	Persistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen
title_fullStr	Persistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen
title_full_unstemmed	Persistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen
title_sort	persistence of the effects of se-fertilization in olive trees over time, monitored with the cytosolic ca<sup>2+</sup> and with the germination of pollen
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4a8d31b004604174beb6ed175d0b0b2a
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Persistence of the Effects of Se-Fertilization in Olive Trees over Time, Monitored with the Cytosolic Ca<sup>2+</sup> and with the Germination of Pollen

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