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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2020.05.012
|2 doi
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|a pubmed24n1039.xml
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|a (DE-627)NLM311820751
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|a (NLM)32604062
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|a (PII)S0981-9428(20)30236-9
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Romero-Aranda, María Remedios
|e verfasserin
|4 aut
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|a Na+ transporter HKT1;2 reduces flower Na+ content and considerably mitigates the decline in tomato fruit yields under saline conditions
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|c 2020
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 10.12.2020
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|a Date Revised 07.12.2022
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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 Genes encoding HKT1-like Na+ transporters play a key role in the salinity tolerance mechanism in Arabidopsis and other plant species by retrieving Na+ from the xylem of different organs and tissues. In this study, we investigated the role of two HKT1;2 allelic variants in tomato salt tolerance in relation to vegetative growth and fruit yield in plants subjected to salt treatment in a commercial greenhouse under real production conditions. We used two near-isogenic lines (NILs), homozygous for either the Solanum lycopersicum (NIL17) or S. cheesmaniae (NIL14) allele, at HKT1;2 loci and their respective RNAi-Sl/ScHKT1;2 lines. The results obtained show that both ScHKT1;2- and SlHKT1;2-silenced lines display hypersensitivity to salinity associated with an altered leaf Na+/K+ ratio, thus confirming that HKT1;2 plays an important role in Na+ homeostasis and salinity tolerance in tomato. Both silenced lines also showed Na+ over-accumulation and a slight, but significant, reduction in K+ content in the flower tissues of salt-treated plants and consequently a higher Na+/K+ ratio as compared to the respective unsilenced lines. This altered Na+/K+ ratio in flower tissues is associated with a sharp reduction in fruit yield, measured as total fresh weight and number of fruits, in both silenced lines under salinity conditions. Our findings demonstrate that Na+ transporter HKT1;2 protects the flower against Na+ toxicity and mitigates the reduction in tomato fruit yield under salinity conditions
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|a Journal Article
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|a Fruit yield
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|a HKT1;2 gene
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|a K(+) and Na(+) homeostasis
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|a Na(+) flower content
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|a Salinity
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|a Solanum lycopersicum and S. cheesmaniae
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| 650 |
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|a Tomato
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| 650 |
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|a Cation Transport Proteins
|2 NLM
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| 650 |
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7 |
|a Plant Proteins
|2 NLM
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| 650 |
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|a Sodium
|2 NLM
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| 650 |
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7 |
|a 9NEZ333N27
|2 NLM
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| 650 |
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|a Potassium
|2 NLM
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| 650 |
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|a RWP5GA015D
|2 NLM
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| 700 |
1 |
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|a González-Fernández, Paloma
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pérez-Tienda, Jacob Rafael
|e verfasserin
|4 aut
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| 700 |
1 |
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|a López-Diaz, María Remedios
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Espinosa, Jesús
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Granum, Espen
|e verfasserin
|4 aut
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| 700 |
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|a Traverso, Jose Ángel
|e verfasserin
|4 aut
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| 700 |
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|a Pineda, Benito
|e verfasserin
|4 aut
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| 700 |
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|a Garcia-Sogo, Begoña
|e verfasserin
|4 aut
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| 700 |
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|a Moreno, Vicente
|e verfasserin
|4 aut
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| 700 |
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|a Asins, María José
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Belver, Andrés
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 154(2020) vom: 27. Sept., Seite 341-352
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:154
|g year:2020
|g day:27
|g month:09
|g pages:341-352
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|u http://dx.doi.org/10.1016/j.plaphy.2020.05.012
|3 Volltext
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|a AR
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|d 154
|j 2020
|b 27
|c 09
|h 341-352
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