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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2017.04.023
|2 doi
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|a pubmed24n0906.xml
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|a (DE-627)NLM271858699
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|a (NLM)28500994
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|a (PII)S0981-9428(17)30145-6
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Cantabella, Daniel
|e verfasserin
|4 aut
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|a Salt-tolerance mechanisms induced in Stevia rebaudiana Bertoni
|b Effects on mineral nutrition, antioxidative metabolism and steviol glycoside content
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 29.12.2017
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2017 Elsevier Masson SAS. All rights reserved.
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|a In order to cope with challenges linked to climate change such as salinity, plants must develop a wide spectrum of physiological and molecular mechanisms to rapidly adapt. Stevia rebaudiana Bertoni plants are a case in point. According to our findings, salt stress has no significant effect on plant growth in these plants, which accumulate sodium (Na+) in their roots, thus avoiding excessive Na+ accumulation in leaves. Furthermore, salt stress (NaCl stress) increases the potassium (K+), calcium (Ca2+), chloride ion (Cl-) and proline concentrations in Stevia leaves, which could contribute to osmotic adjustment. We also found that long-term NaCl stress does not produce changes in chlorophyll concentrations in Stevia leaves, reflecting a mechanism to protect the photosynthesis process. Interestingly, an increase in chlorophyll b (Chlb) content occured in the oldest plants studied. In addition, we found that NaCl induced reactive oxygen species (ROS) accumulation in Stevia leaves and that this accumulation was more evident in the presence of 5 g/L NaCl, the highest concentration used in the study. Nevertheless, Stevia plants are able to induce (16 d) or maintain (25 d) antioxidant enzymes to cope with NaCl-induced oxidative stress. Low salt levels did not affect steviolbioside and rebaudioside A contents. Our results suggest that Stevia plants induce tolerance mechanisms in order to minimize the deleterious effects of salt stress. We can thus conclude that saline waters can be used to grow Stevia plants and for Steviol glycosides (SGs) production
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|a Journal Article
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|a Chlorophyll fluorescence
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|a Mineral nutrition
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|a NaCl stress
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|a Oxidative stress
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|a Physiological response
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|a Stevia plants
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|a Steviol glycosides
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|a Antioxidants
|2 NLM
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|a Diterpenes, Kaurane
|2 NLM
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|a Glucosides
|2 NLM
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| 650 |
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|a Minerals
|2 NLM
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| 650 |
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|a Reactive Oxygen Species
|2 NLM
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| 650 |
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|a stevioside
|2 NLM
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| 650 |
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|a 0YON5MXJ9P
|2 NLM
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|a Sodium Chloride
|2 NLM
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| 650 |
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|a 451W47IQ8X
|2 NLM
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| 700 |
1 |
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|a Piqueras, Abel
|e verfasserin
|4 aut
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|a Acosta-Motos, José Ramón
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bernal-Vicente, Agustina
|e verfasserin
|4 aut
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| 700 |
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|a Hernández, José A
|e verfasserin
|4 aut
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|a Díaz-Vivancos, Pedro
|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 115(2017) vom: 01. Juni, Seite 484-496
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:115
|g year:2017
|g day:01
|g month:06
|g pages:484-496
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|u http://dx.doi.org/10.1016/j.plaphy.2017.04.023
|3 Volltext
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