Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit
The triploidy has proved to be a powerful approach breeding programs, especially in Citrus since seedlessness is one of the main consumer expectations. Citrus plants face numerous abiotic stresses including water deficit, which negatively impact growth and crop yield. In this study, we evaluated the physiological and biochemical responses to water deficit and recovery capacity of new triploid hybrids, in comparison with diploid hybrids, their parents (“Fortune” mandarin and “Ellendale” tangor) and one clementine tree used as reference. The water deficit significantly decreased the relative water content (RWC) and leaf gas exchange (Pnet and gs) and it increased the levels of oxidative markers (H2O2 and MDA) and antioxidants. Compared to diploid varieties, triploid hybrids limited water loss by osmotic adjustment as reflected by higher RWC, intrinsic water use efficiency (iWUE Pnet/gs) iWUE and leaf proline levels. These had been associated with an effective thermal dissipation of excess energy (NPQ) and lower oxidative damage. Our results showed that triploidy in citrus enhances the recovery capacity after a water deficit in comparison with diploids due to better carboxylation efficiency, restored water-related parameters and efficient antioxidant system.
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Subjects: | F30 - Génétique et amélioration des plantes, F60 - Physiologie et biochimie végétale, H50 - Troubles divers des plantes, Citrus, triploïdie, stress dû à la sécheresse, réponse de la plante, osmorégulation, échange gazeux, antioxydant, tolérance à la sécheresse, résistance à la sécheresse, http://aims.fao.org/aos/agrovoc/c_1637, http://aims.fao.org/aos/agrovoc/c_7939, http://aims.fao.org/aos/agrovoc/c_24993, http://aims.fao.org/aos/agrovoc/c_25446, http://aims.fao.org/aos/agrovoc/c_33521, http://aims.fao.org/aos/agrovoc/c_11098, http://aims.fao.org/aos/agrovoc/c_511, http://aims.fao.org/aos/agrovoc/c_14914, http://aims.fao.org/aos/agrovoc/c_2392, |
Online Access: | http://agritrop.cirad.fr/597633/ http://agritrop.cirad.fr/597633/1/Lourkisti%20et%20al%202021.pdf |
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dig-cirad-fr-5976332024-01-29T03:20:15Z http://agritrop.cirad.fr/597633/ http://agritrop.cirad.fr/597633/ Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit. Lourkisti Radia, Froelicher Yann, Herbette Stéphane, Morillon Raphaël, Giannettini Jean, Berti Liliane, Santini Jérémie. 2021. Frontiers in Plant Science, 11:615335, 14 p.https://doi.org/10.3389/fpls.2020.615335 <https://doi.org/10.3389/fpls.2020.615335> Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit Lourkisti, Radia Froelicher, Yann Herbette, Stéphane Morillon, Raphaël Giannettini, Jean Berti, Liliane Santini, Jérémie eng 2021 Frontiers in Plant Science F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus triploïdie stress dû à la sécheresse réponse de la plante osmorégulation échange gazeux antioxydant tolérance à la sécheresse résistance à la sécheresse http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_25446 http://aims.fao.org/aos/agrovoc/c_33521 http://aims.fao.org/aos/agrovoc/c_11098 http://aims.fao.org/aos/agrovoc/c_511 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_2392 The triploidy has proved to be a powerful approach breeding programs, especially in Citrus since seedlessness is one of the main consumer expectations. Citrus plants face numerous abiotic stresses including water deficit, which negatively impact growth and crop yield. In this study, we evaluated the physiological and biochemical responses to water deficit and recovery capacity of new triploid hybrids, in comparison with diploid hybrids, their parents (“Fortune” mandarin and “Ellendale” tangor) and one clementine tree used as reference. The water deficit significantly decreased the relative water content (RWC) and leaf gas exchange (Pnet and gs) and it increased the levels of oxidative markers (H2O2 and MDA) and antioxidants. Compared to diploid varieties, triploid hybrids limited water loss by osmotic adjustment as reflected by higher RWC, intrinsic water use efficiency (iWUE Pnet/gs) iWUE and leaf proline levels. These had been associated with an effective thermal dissipation of excess energy (NPQ) and lower oxidative damage. Our results showed that triploidy in citrus enhances the recovery capacity after a water deficit in comparison with diploids due to better carboxylation efficiency, restored water-related parameters and efficient antioxidant system. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/597633/1/Lourkisti%20et%20al%202021.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.3389/fpls.2020.615335 10.3389/fpls.2020.615335 info:eu-repo/semantics/altIdentifier/doi/10.3389/fpls.2020.615335 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.3389/fpls.2020.615335 |
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F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus triploïdie stress dû à la sécheresse réponse de la plante osmorégulation échange gazeux antioxydant tolérance à la sécheresse résistance à la sécheresse http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_25446 http://aims.fao.org/aos/agrovoc/c_33521 http://aims.fao.org/aos/agrovoc/c_11098 http://aims.fao.org/aos/agrovoc/c_511 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_2392 F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus triploïdie stress dû à la sécheresse réponse de la plante osmorégulation échange gazeux antioxydant tolérance à la sécheresse résistance à la sécheresse http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_25446 http://aims.fao.org/aos/agrovoc/c_33521 http://aims.fao.org/aos/agrovoc/c_11098 http://aims.fao.org/aos/agrovoc/c_511 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_2392 |
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F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus triploïdie stress dû à la sécheresse réponse de la plante osmorégulation échange gazeux antioxydant tolérance à la sécheresse résistance à la sécheresse http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_25446 http://aims.fao.org/aos/agrovoc/c_33521 http://aims.fao.org/aos/agrovoc/c_11098 http://aims.fao.org/aos/agrovoc/c_511 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_2392 F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus triploïdie stress dû à la sécheresse réponse de la plante osmorégulation échange gazeux antioxydant tolérance à la sécheresse résistance à la sécheresse http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_25446 http://aims.fao.org/aos/agrovoc/c_33521 http://aims.fao.org/aos/agrovoc/c_11098 http://aims.fao.org/aos/agrovoc/c_511 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_2392 Lourkisti, Radia Froelicher, Yann Herbette, Stéphane Morillon, Raphaël Giannettini, Jean Berti, Liliane Santini, Jérémie Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit |
description |
The triploidy has proved to be a powerful approach breeding programs, especially in Citrus since seedlessness is one of the main consumer expectations. Citrus plants face numerous abiotic stresses including water deficit, which negatively impact growth and crop yield. In this study, we evaluated the physiological and biochemical responses to water deficit and recovery capacity of new triploid hybrids, in comparison with diploid hybrids, their parents (“Fortune” mandarin and “Ellendale” tangor) and one clementine tree used as reference. The water deficit significantly decreased the relative water content (RWC) and leaf gas exchange (Pnet and gs) and it increased the levels of oxidative markers (H2O2 and MDA) and antioxidants. Compared to diploid varieties, triploid hybrids limited water loss by osmotic adjustment as reflected by higher RWC, intrinsic water use efficiency (iWUE Pnet/gs) iWUE and leaf proline levels. These had been associated with an effective thermal dissipation of excess energy (NPQ) and lower oxidative damage. Our results showed that triploidy in citrus enhances the recovery capacity after a water deficit in comparison with diploids due to better carboxylation efficiency, restored water-related parameters and efficient antioxidant system. |
format |
article |
topic_facet |
F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus triploïdie stress dû à la sécheresse réponse de la plante osmorégulation échange gazeux antioxydant tolérance à la sécheresse résistance à la sécheresse http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_25446 http://aims.fao.org/aos/agrovoc/c_33521 http://aims.fao.org/aos/agrovoc/c_11098 http://aims.fao.org/aos/agrovoc/c_511 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_2392 |
author |
Lourkisti, Radia Froelicher, Yann Herbette, Stéphane Morillon, Raphaël Giannettini, Jean Berti, Liliane Santini, Jérémie |
author_facet |
Lourkisti, Radia Froelicher, Yann Herbette, Stéphane Morillon, Raphaël Giannettini, Jean Berti, Liliane Santini, Jérémie |
author_sort |
Lourkisti, Radia |
title |
Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit |
title_short |
Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit |
title_full |
Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit |
title_fullStr |
Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit |
title_full_unstemmed |
Triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit |
title_sort |
triploidy in citrus genotypes improved leaf gas exchange and antioxidant recovery from water deficit |
url |
http://agritrop.cirad.fr/597633/ http://agritrop.cirad.fr/597633/1/Lourkisti%20et%20al%202021.pdf |
work_keys_str_mv |
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_version_ |
1792500105349169152 |