Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes
Tetraploid (4x) citrus seedlings may be more tolerant to salt stress than diploid (2x) genotypes. Genome duplication in citrus changes both plant physiology and anatomy, leading plants to acquire differentiated capacities to uptake and transport mineral elements. To provide insight into this behaviour, 2x and 4x Citrus macrophylla (CM), seedlings were grown at moderate (40 mM NaCl) and high salinity (80 mM NaCl) for a period of 30 days. Moderate salinity reduced the biomass of 4x plants, but did not affect the 2x plants, even when diploids accumulated more chloride (Cl−) and sodium (Na+) ions in leaves than tetraploids. The leaf K+ concentration descended in 2xCM leaves but not in the tetraploids. These differences were correlated to variations in uptake and transport rates between the genotypes. Leaf osmotic potential in salinized plants was lower in 2x than in 4x leaves, but water potential and turgor were similar between them. Tetraploid plants had a stronger decrease in their gas exchange parameters than diploids when subjected to moderate salt stress. Leaf damage was only observed in 2x plants subjected to high salinity media, and was correlated with higher Cl− leaf concentration than 4x plants, while Na+ did not differ between them. Taken together, our results suggest that genome duplication improves the tolerance to saline toxicity in CM, because the lower Cl− accumulation in leaves delays the damage. This effect may be linked to the reduced transpiration rate of the 4x genotype.
Main Authors: | , , , , , , , |
---|---|
Format: | article biblioteca |
Language: | eng |
Subjects: | F30 - Génétique et amélioration des plantes, F60 - Physiologie et biochimie végétale, H50 - Troubles divers des plantes, Citrus macrophylla, tolérance au sel, polyploïdie, tétraploïdie, diploïdie, porte greffe, chlore, chlorure de sodium, salinité du sol, http://aims.fao.org/aos/agrovoc/c_35537, http://aims.fao.org/aos/agrovoc/c_24078, http://aims.fao.org/aos/agrovoc/c_6094, http://aims.fao.org/aos/agrovoc/c_7690, http://aims.fao.org/aos/agrovoc/c_2313, http://aims.fao.org/aos/agrovoc/c_6653, http://aims.fao.org/aos/agrovoc/c_1568, http://aims.fao.org/aos/agrovoc/c_7146, http://aims.fao.org/aos/agrovoc/c_35317, http://aims.fao.org/aos/agrovoc/c_7273, |
Online Access: | http://agritrop.cirad.fr/581986/ http://agritrop.cirad.fr/581986/1/Ruiz%20et%20al%20%202016.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cirad-fr-581986 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-5819862024-01-28T23:45:31Z http://agritrop.cirad.fr/581986/ http://agritrop.cirad.fr/581986/ Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes. Ruiz Marta, Quinones Anna, Martínez-Alcántara Belén, Aleza Pablo, Morillon Raphaël, Navarro Luis, Primo-Millo Eduardo, Martínez-Cuenca Mary-Rus. 2016. Scientia Horticulturae, 207 : 33-40.https://doi.org/10.1016/j.scienta.2016.05.007 <https://doi.org/10.1016/j.scienta.2016.05.007> Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes Ruiz, Marta Quinones, Anna Martínez-Alcántara, Belén Aleza, Pablo Morillon, Raphaël Navarro, Luis Primo-Millo, Eduardo Martínez-Cuenca, Mary-Rus eng 2016 Scientia Horticulturae F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus macrophylla tolérance au sel polyploïdie tétraploïdie diploïdie porte greffe chlore chlorure de sodium salinité du sol http://aims.fao.org/aos/agrovoc/c_35537 http://aims.fao.org/aos/agrovoc/c_24078 http://aims.fao.org/aos/agrovoc/c_6094 http://aims.fao.org/aos/agrovoc/c_7690 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_1568 http://aims.fao.org/aos/agrovoc/c_7146 http://aims.fao.org/aos/agrovoc/c_35317 Espagne http://aims.fao.org/aos/agrovoc/c_7273 Tetraploid (4x) citrus seedlings may be more tolerant to salt stress than diploid (2x) genotypes. Genome duplication in citrus changes both plant physiology and anatomy, leading plants to acquire differentiated capacities to uptake and transport mineral elements. To provide insight into this behaviour, 2x and 4x Citrus macrophylla (CM), seedlings were grown at moderate (40 mM NaCl) and high salinity (80 mM NaCl) for a period of 30 days. Moderate salinity reduced the biomass of 4x plants, but did not affect the 2x plants, even when diploids accumulated more chloride (Cl−) and sodium (Na+) ions in leaves than tetraploids. The leaf K+ concentration descended in 2xCM leaves but not in the tetraploids. These differences were correlated to variations in uptake and transport rates between the genotypes. Leaf osmotic potential in salinized plants was lower in 2x than in 4x leaves, but water potential and turgor were similar between them. Tetraploid plants had a stronger decrease in their gas exchange parameters than diploids when subjected to moderate salt stress. Leaf damage was only observed in 2x plants subjected to high salinity media, and was correlated with higher Cl− leaf concentration than 4x plants, while Na+ did not differ between them. Taken together, our results suggest that genome duplication improves the tolerance to saline toxicity in CM, because the lower Cl− accumulation in leaves delays the damage. This effect may be linked to the reduced transpiration rate of the 4x genotype. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/581986/1/Ruiz%20et%20al%20%202016.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.scienta.2016.05.007 10.1016/j.scienta.2016.05.007 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scienta.2016.05.007 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.scienta.2016.05.007 |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus macrophylla tolérance au sel polyploïdie tétraploïdie diploïdie porte greffe chlore chlorure de sodium salinité du sol http://aims.fao.org/aos/agrovoc/c_35537 http://aims.fao.org/aos/agrovoc/c_24078 http://aims.fao.org/aos/agrovoc/c_6094 http://aims.fao.org/aos/agrovoc/c_7690 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_1568 http://aims.fao.org/aos/agrovoc/c_7146 http://aims.fao.org/aos/agrovoc/c_35317 http://aims.fao.org/aos/agrovoc/c_7273 F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus macrophylla tolérance au sel polyploïdie tétraploïdie diploïdie porte greffe chlore chlorure de sodium salinité du sol http://aims.fao.org/aos/agrovoc/c_35537 http://aims.fao.org/aos/agrovoc/c_24078 http://aims.fao.org/aos/agrovoc/c_6094 http://aims.fao.org/aos/agrovoc/c_7690 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_1568 http://aims.fao.org/aos/agrovoc/c_7146 http://aims.fao.org/aos/agrovoc/c_35317 http://aims.fao.org/aos/agrovoc/c_7273 |
spellingShingle |
F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus macrophylla tolérance au sel polyploïdie tétraploïdie diploïdie porte greffe chlore chlorure de sodium salinité du sol http://aims.fao.org/aos/agrovoc/c_35537 http://aims.fao.org/aos/agrovoc/c_24078 http://aims.fao.org/aos/agrovoc/c_6094 http://aims.fao.org/aos/agrovoc/c_7690 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_1568 http://aims.fao.org/aos/agrovoc/c_7146 http://aims.fao.org/aos/agrovoc/c_35317 http://aims.fao.org/aos/agrovoc/c_7273 F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus macrophylla tolérance au sel polyploïdie tétraploïdie diploïdie porte greffe chlore chlorure de sodium salinité du sol http://aims.fao.org/aos/agrovoc/c_35537 http://aims.fao.org/aos/agrovoc/c_24078 http://aims.fao.org/aos/agrovoc/c_6094 http://aims.fao.org/aos/agrovoc/c_7690 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_1568 http://aims.fao.org/aos/agrovoc/c_7146 http://aims.fao.org/aos/agrovoc/c_35317 http://aims.fao.org/aos/agrovoc/c_7273 Ruiz, Marta Quinones, Anna Martínez-Alcántara, Belén Aleza, Pablo Morillon, Raphaël Navarro, Luis Primo-Millo, Eduardo Martínez-Cuenca, Mary-Rus Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes |
description |
Tetraploid (4x) citrus seedlings may be more tolerant to salt stress than diploid (2x) genotypes. Genome duplication in citrus changes both plant physiology and anatomy, leading plants to acquire differentiated capacities to uptake and transport mineral elements. To provide insight into this behaviour, 2x and 4x Citrus macrophylla (CM), seedlings were grown at moderate (40 mM NaCl) and high salinity (80 mM NaCl) for a period of 30 days. Moderate salinity reduced the biomass of 4x plants, but did not affect the 2x plants, even when diploids accumulated more chloride (Cl−) and sodium (Na+) ions in leaves than tetraploids. The leaf K+ concentration descended in 2xCM leaves but not in the tetraploids. These differences were correlated to variations in uptake and transport rates between the genotypes. Leaf osmotic potential in salinized plants was lower in 2x than in 4x leaves, but water potential and turgor were similar between them. Tetraploid plants had a stronger decrease in their gas exchange parameters than diploids when subjected to moderate salt stress. Leaf damage was only observed in 2x plants subjected to high salinity media, and was correlated with higher Cl− leaf concentration than 4x plants, while Na+ did not differ between them. Taken together, our results suggest that genome duplication improves the tolerance to saline toxicity in CM, because the lower Cl− accumulation in leaves delays the damage. This effect may be linked to the reduced transpiration rate of the 4x genotype. |
format |
article |
topic_facet |
F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale H50 - Troubles divers des plantes Citrus macrophylla tolérance au sel polyploïdie tétraploïdie diploïdie porte greffe chlore chlorure de sodium salinité du sol http://aims.fao.org/aos/agrovoc/c_35537 http://aims.fao.org/aos/agrovoc/c_24078 http://aims.fao.org/aos/agrovoc/c_6094 http://aims.fao.org/aos/agrovoc/c_7690 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_1568 http://aims.fao.org/aos/agrovoc/c_7146 http://aims.fao.org/aos/agrovoc/c_35317 http://aims.fao.org/aos/agrovoc/c_7273 |
author |
Ruiz, Marta Quinones, Anna Martínez-Alcántara, Belén Aleza, Pablo Morillon, Raphaël Navarro, Luis Primo-Millo, Eduardo Martínez-Cuenca, Mary-Rus |
author_facet |
Ruiz, Marta Quinones, Anna Martínez-Alcántara, Belén Aleza, Pablo Morillon, Raphaël Navarro, Luis Primo-Millo, Eduardo Martínez-Cuenca, Mary-Rus |
author_sort |
Ruiz, Marta |
title |
Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes |
title_short |
Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes |
title_full |
Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes |
title_fullStr |
Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes |
title_full_unstemmed |
Effects of salinity on diploid (2x) and doubled diploid (4x) Citrus macrophylla genotypes |
title_sort |
effects of salinity on diploid (2x) and doubled diploid (4x) citrus macrophylla genotypes |
url |
http://agritrop.cirad.fr/581986/ http://agritrop.cirad.fr/581986/1/Ruiz%20et%20al%20%202016.pdf |
work_keys_str_mv |
AT ruizmarta effectsofsalinityondiploid2xanddoubleddiploid4xcitrusmacrophyllagenotypes AT quinonesanna effectsofsalinityondiploid2xanddoubleddiploid4xcitrusmacrophyllagenotypes AT martinezalcantarabelen effectsofsalinityondiploid2xanddoubleddiploid4xcitrusmacrophyllagenotypes AT alezapablo effectsofsalinityondiploid2xanddoubleddiploid4xcitrusmacrophyllagenotypes AT morillonraphael effectsofsalinityondiploid2xanddoubleddiploid4xcitrusmacrophyllagenotypes AT navarroluis effectsofsalinityondiploid2xanddoubleddiploid4xcitrusmacrophyllagenotypes AT primomilloeduardo effectsofsalinityondiploid2xanddoubleddiploid4xcitrusmacrophyllagenotypes AT martinezcuencamaryrus effectsofsalinityondiploid2xanddoubleddiploid4xcitrusmacrophyllagenotypes |
_version_ |
1792499128960286720 |