Cargando…

The Influence of Light on Olive (Olea europaea L.) Fruit Development Is Cultivar Dependent

In olive, the response to environmental conditions, such as light availability, is under genetic control and requires a combination of biochemical and physiological events. We investigated the effect of irradiance in fruit development in two Italian cultivars, Leccino and Frantoio. Morphological and...

Descripción completa

Detalles Bibliográficos
Autores principales: Reale, Lara, Nasini, Luigi, Cerri, Martina, Regni, Luca, Ferranti, Francesco, Proietti, Primo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446062/
https://www.ncbi.nlm.nih.gov/pubmed/30972098
http://dx.doi.org/10.3389/fpls.2019.00385
_version_ 1783408291119890432
author Reale, Lara
Nasini, Luigi
Cerri, Martina
Regni, Luca
Ferranti, Francesco
Proietti, Primo
author_facet Reale, Lara
Nasini, Luigi
Cerri, Martina
Regni, Luca
Ferranti, Francesco
Proietti, Primo
author_sort Reale, Lara
collection PubMed
description In olive, the response to environmental conditions, such as light availability, is under genetic control and requires a combination of biochemical and physiological events. We investigated the effect of irradiance in fruit development in two Italian cultivars, Leccino and Frantoio. Morphological and cyto-histological analyses, as well as water and oil content determination, were carried out in fruits exposed to a different light regime (named as light and shade fruits). Results demonstrated that the influence of light availability on fruit development depends on the cultivar. In Leccino, the fresh and the dry weight, the percentage of dry matter, the kernel and fruit diameter, the mesocarp thickness and the mesocarp cell size were higher in the light exposed fruits than in the ones grown in the shade. In Frantoio, differences between light and shade fruits were observed only at 140 DAF (Days After Flowering) and only in the kernel and fruit diameter and in the dry and fresh weight, which were higher in the light exposed fruits. Leccino, therefore, showed a greater sensitivity to the light availability. This may be related to the observed delay in the endocarp lignification as compared to the Frantoio cultivar. In each cultivar, moreover, shade and light fruits did not show differences in the timing of cell differentiation. Finally, the investigation of oil storage carried out in cyto-histological studies demonstrated that differences in oil content between fruit subjected to different light regimes correlated with the number of oil containing cells, rather than the oil content per cell. A different behaviour was observed in the two cultivars: in Leccino, the mesocarp cell size was almost twice of Frantoio, while oil drops were only 30% larger; therefore, the percentage of cell volume occupied by the oil drops was lower in Leccino than in Frantoio. The chemical analysis confirmed this observation.
format Online
Article
Text
id pubmed-6446062
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-64460622019-04-10 The Influence of Light on Olive (Olea europaea L.) Fruit Development Is Cultivar Dependent Reale, Lara Nasini, Luigi Cerri, Martina Regni, Luca Ferranti, Francesco Proietti, Primo Front Plant Sci Plant Science In olive, the response to environmental conditions, such as light availability, is under genetic control and requires a combination of biochemical and physiological events. We investigated the effect of irradiance in fruit development in two Italian cultivars, Leccino and Frantoio. Morphological and cyto-histological analyses, as well as water and oil content determination, were carried out in fruits exposed to a different light regime (named as light and shade fruits). Results demonstrated that the influence of light availability on fruit development depends on the cultivar. In Leccino, the fresh and the dry weight, the percentage of dry matter, the kernel and fruit diameter, the mesocarp thickness and the mesocarp cell size were higher in the light exposed fruits than in the ones grown in the shade. In Frantoio, differences between light and shade fruits were observed only at 140 DAF (Days After Flowering) and only in the kernel and fruit diameter and in the dry and fresh weight, which were higher in the light exposed fruits. Leccino, therefore, showed a greater sensitivity to the light availability. This may be related to the observed delay in the endocarp lignification as compared to the Frantoio cultivar. In each cultivar, moreover, shade and light fruits did not show differences in the timing of cell differentiation. Finally, the investigation of oil storage carried out in cyto-histological studies demonstrated that differences in oil content between fruit subjected to different light regimes correlated with the number of oil containing cells, rather than the oil content per cell. A different behaviour was observed in the two cultivars: in Leccino, the mesocarp cell size was almost twice of Frantoio, while oil drops were only 30% larger; therefore, the percentage of cell volume occupied by the oil drops was lower in Leccino than in Frantoio. The chemical analysis confirmed this observation. Frontiers Media S.A. 2019-03-27 /pmc/articles/PMC6446062/ /pubmed/30972098 http://dx.doi.org/10.3389/fpls.2019.00385 Text en Copyright © 2019 Reale, Nasini, Cerri, Regni, Ferranti and Proietti. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Reale, Lara
Nasini, Luigi
Cerri, Martina
Regni, Luca
Ferranti, Francesco
Proietti, Primo
The Influence of Light on Olive (Olea europaea L.) Fruit Development Is Cultivar Dependent
title The Influence of Light on Olive (Olea europaea L.) Fruit Development Is Cultivar Dependent
title_full The Influence of Light on Olive (Olea europaea L.) Fruit Development Is Cultivar Dependent
title_fullStr The Influence of Light on Olive (Olea europaea L.) Fruit Development Is Cultivar Dependent
title_full_unstemmed The Influence of Light on Olive (Olea europaea L.) Fruit Development Is Cultivar Dependent
title_short The Influence of Light on Olive (Olea europaea L.) Fruit Development Is Cultivar Dependent
title_sort influence of light on olive (olea europaea l.) fruit development is cultivar dependent
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446062/
https://www.ncbi.nlm.nih.gov/pubmed/30972098
http://dx.doi.org/10.3389/fpls.2019.00385
work_keys_str_mv AT realelara theinfluenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT nasiniluigi theinfluenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT cerrimartina theinfluenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT regniluca theinfluenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT ferrantifrancesco theinfluenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT proiettiprimo theinfluenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT realelara influenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT nasiniluigi influenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT cerrimartina influenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT regniluca influenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT ferrantifrancesco influenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent
AT proiettiprimo influenceoflightonoliveoleaeuropaealfruitdevelopmentiscultivardependent