Genotypic Differences in Architectural and Physiological Responses to Water Restriction in Rose Bush
The shape and, therefore, the architecture of the plant are dependent on genetic and environmental factors such as water supply. The architecture determines the visual quality, a key criterion underlying the decision to purchase an ornamental potted plant. The aim of this study was to analyze genoty...
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doaj-fa27f11deb0f48078c32f05620c94dba2020-11-24T23:53:40ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2015-05-01610.3389/fpls.2015.00355140714Genotypic Differences in Architectural and Physiological Responses to Water Restriction in Rose BushCamille eLi-Marchetti0Camille eLi-Marchetti1Camille eLe Bras2Daniel eRelion3Sylvie eCiterne4Lydie eHuché-Thélier5Soulaiman eSakr6Philippe eMorel7Laurent eCrespel8ASTREDHORAgrocampus Ouest, UMR 1345, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus Ouest, University of Angers)Agrocampus Ouest, UMR 1345, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus Ouest, University of Angers)Agrocampus Ouest, UMR 1345, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus Ouest, University of Angers)INRA, Institut Jean-Pierre Bourgin Centre de Versailles-Grignon, Unité Mixte de Recherche 1318 (INRA-Agro-ParisTech-CNRS)INRA, Unité Mixte de Recherche 1345, Institut de Recherche en Horticulture et Semences, (INRA-Agrocampus Ouest-Université d'Angers)Agrocampus Ouest, UMR 1345, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus Ouest, University of Angers)INRA, Unité Mixte de Recherche 1345, Institut de Recherche en Horticulture et Semences, (INRA-Agrocampus Ouest-Université d'Angers)Agrocampus Ouest, UMR 1345, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus Ouest, University of Angers)The shape and, therefore, the architecture of the plant are dependent on genetic and environmental factors such as water supply. The architecture determines the visual quality, a key criterion underlying the decision to purchase an ornamental potted plant. The aim of this study was to analyze genotypic responses of eight rose bush cultivars to alternation of water restriction and re-watering periods, with soil water potential of -20kPa and -10 kPa respectively. Responses were evaluated at the architectural level through 3D digitalization using six architectural variables and at the physiological level by measuring stomatal conductance, water content, hormones (abscisic acid, auxin, cytokinins, jasmonic acid and salicylic acid), sugars (sucrose, fructose and glucose) and proline. Highly significant genotype and watering effects were revealed for all the architectural variables measured, as well as genotype x watering interaction, with three distinct genotypic architectural responses to water restriction - weak, moderate and strong - represented by Hw336, ‘Baipome’ and ‘The Fairy’, respectively. The physiological analysis explained, at least in part, the more moderate architectural response of ‘Baipome’ compared to ‘The Fairy’, but not that of Hw336 which is an interspecific hybrid. Such physiological responses could be related to: (i) the maintenance of the stimulation of budbreak and photosynthetic activity in ‘Baipome’ during water restriction periods due to a higher concentration in conjugated cytokinins (cCK) and to a lower concentration in salicylic acid (SA); (ii) a better resumption of budbreak during the re-watering periods due to a lower concentration in abscisic acid (ABA) during this period. When associated with the six architectural descriptors, cCK, SA and ABA, which explained the genotypic differences in this study, could be used as selection criteria for breeding programs aimed at improving plant shape and tolerance to water restriction.http://journal.frontiersin.org/Journal/10.3389/fpls.2015.00355/fullHormonesRosagenotype x environment interactionArchitectural analysiswater restriction tolerance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Camille eLi-Marchetti Camille eLi-Marchetti Camille eLe Bras Daniel eRelion Sylvie eCiterne Lydie eHuché-Thélier Soulaiman eSakr Philippe eMorel Laurent eCrespel |
spellingShingle |
Camille eLi-Marchetti Camille eLi-Marchetti Camille eLe Bras Daniel eRelion Sylvie eCiterne Lydie eHuché-Thélier Soulaiman eSakr Philippe eMorel Laurent eCrespel Genotypic Differences in Architectural and Physiological Responses to Water Restriction in Rose Bush Frontiers in Plant Science Hormones Rosa genotype x environment interaction Architectural analysis water restriction tolerance |
author_facet |
Camille eLi-Marchetti Camille eLi-Marchetti Camille eLe Bras Daniel eRelion Sylvie eCiterne Lydie eHuché-Thélier Soulaiman eSakr Philippe eMorel Laurent eCrespel |
author_sort |
Camille eLi-Marchetti |
title |
Genotypic Differences in Architectural and Physiological Responses to Water Restriction in Rose Bush |
title_short |
Genotypic Differences in Architectural and Physiological Responses to Water Restriction in Rose Bush |
title_full |
Genotypic Differences in Architectural and Physiological Responses to Water Restriction in Rose Bush |
title_fullStr |
Genotypic Differences in Architectural and Physiological Responses to Water Restriction in Rose Bush |
title_full_unstemmed |
Genotypic Differences in Architectural and Physiological Responses to Water Restriction in Rose Bush |
title_sort |
genotypic differences in architectural and physiological responses to water restriction in rose bush |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Plant Science |
issn |
1664-462X |
publishDate |
2015-05-01 |
description |
The shape and, therefore, the architecture of the plant are dependent on genetic and environmental factors such as water supply. The architecture determines the visual quality, a key criterion underlying the decision to purchase an ornamental potted plant. The aim of this study was to analyze genotypic responses of eight rose bush cultivars to alternation of water restriction and re-watering periods, with soil water potential of -20kPa and -10 kPa respectively. Responses were evaluated at the architectural level through 3D digitalization using six architectural variables and at the physiological level by measuring stomatal conductance, water content, hormones (abscisic acid, auxin, cytokinins, jasmonic acid and salicylic acid), sugars (sucrose, fructose and glucose) and proline. Highly significant genotype and watering effects were revealed for all the architectural variables measured, as well as genotype x watering interaction, with three distinct genotypic architectural responses to water restriction - weak, moderate and strong - represented by Hw336, ‘Baipome’ and ‘The Fairy’, respectively. The physiological analysis explained, at least in part, the more moderate architectural response of ‘Baipome’ compared to ‘The Fairy’, but not that of Hw336 which is an interspecific hybrid. Such physiological responses could be related to: (i) the maintenance of the stimulation of budbreak and photosynthetic activity in ‘Baipome’ during water restriction periods due to a higher concentration in conjugated cytokinins (cCK) and to a lower concentration in salicylic acid (SA); (ii) a better resumption of budbreak during the re-watering periods due to a lower concentration in abscisic acid (ABA) during this period. When associated with the six architectural descriptors, cCK, SA and ABA, which explained the genotypic differences in this study, could be used as selection criteria for breeding programs aimed at improving plant shape and tolerance to water restriction. |
topic |
Hormones Rosa genotype x environment interaction Architectural analysis water restriction tolerance |
url |
http://journal.frontiersin.org/Journal/10.3389/fpls.2015.00355/full |
work_keys_str_mv |
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