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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2020.06.024
|2 doi
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|a pubmed24n1046.xml
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|a (NLM)32829097
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|a (PII)S0981-9428(20)30305-3
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|a DE-627
|b ger
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|e rakwb
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|a eng
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1 |
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|a Pérez-Jiménez, Margarita
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Mutants of Citrus macrophylla rootstock obtained by gamma radiation improve salt resistance through toxic ion exclusion
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 17.12.2020
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|a Date Revised 17.12.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2020 Elsevier Masson SAS. All rights reserved.
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|a Salinity is one of the biggest challenges that need to be faced in crop production. Citrus is highly sensitive to salt stress and obtaining rootstocks with improved resistance to salinity is key for the citrus growing industry. In this study, five mutants of Citrus macrophylla rootstock, obtained through gamma radiation and in vitro pre-selected for their resistance to salinity, were irrigated with a solution containing 100 mM of NaCl. After 8 weeks of exposure, the mutants were evaluated for their performance (growth, visual leaf damage) and chlorophyll, proline, starch, soluble sugars and ion contents to determine their degree of resistance to this salinity level. In the saline conditions assayed, all the mutants showed better performance and less leaf damage than Citrus macrophylla. Our data suggest that this improved resistance to salinity was based on their capacity to accumulate less Na (MM4B and MMN1) or Cl- (MM1A, MM4A and MM3B). Besides having the lowest Cl- content, the mutants MM1A, MM4A and MM3B, had the highest NO3- concentrations in salinity. Furthermore, mutants did not show chlorophyll degradation and showed less leaf damage and acceptable plant growth. Other parameters including proline and soluble sugars, did not prove decisive in the salinity resistance of these genotypes
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|a Journal Article
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|a Chloride
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|a Citrus macrophylla
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|a Gamma rays
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|a Mutagenesis
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|a Plant stress
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|a Salinity
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|a Sodium
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1 |
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|a Pérez-Tornero, Olaya
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 155(2020) vom: 13. Okt., Seite 494-501
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:155
|g year:2020
|g day:13
|g month:10
|g pages:494-501
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|u http://dx.doi.org/10.1016/j.plaphy.2020.06.024
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