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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2023.107725
|2 doi
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|a pubmed24n1188.xml
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|a (DE-627)NLM356591980
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|a (NLM)37156070
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|a (PII)S0981-9428(23)00236-X
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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 Duarte, Bernardo
|e verfasserin
|4 aut
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|a Improving Salicornia ramosissima photochemical and biochemical resilience to extreme heatwaves through rhizosphere engineering with Plant Growth-Promoting Bacteria
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|c 2023
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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
|b cr
|2 rdacarrier
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|a Date Completed 23.05.2023
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|a Date Revised 23.05.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023 Elsevier Masson SAS. All rights reserved.
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|a The anticipated rise in the length, frequency, and intensity of heatwaves (HW) in the Mediterranean region poses a danger to the crops, as these brief but high-intensity thermal stress events halt plant productivity. This arises the need to develop new eco-friendly sustainable strategies to overcome food demand. Halophytes such as Salicornia ramosissima appear as cash crop candidates, alongside with new biofertilization approaches using Plant Growth Promoting Bacteria (PGPB). In the present work, S. ramosissima plants exposed to heatwave (HW) treatments with and without marine PGPB inoculation is studied to evaluate the physiological responses behind eventual thermal adaptation conditions. Plants exposed to HW inoculated with ACC deaminase and IAA-producing PGPB showed a 50% reduction in the photochemical energy dissipation, when compared to their non-inoculated counterparts, indicating higher light-use efficiency. The observed concomitant increase (76-234%) in several pigments indicates improved inoculated HW-exposed individuals' light harvesting and photoprotection under stressful conditions. This reduction of the physiological stress levels in inoculated plants was also evident by the significant reduction of several antioxidant enzymes as well as of membrane lipid peroxidation products. Additionally, improved membrane stability could also be observed, through the regulation of fatty acid unsaturation levels, decreasing the excessive fluidity imposed by HW treatment. All these improved physiological traits associated with specific PGP traits highlight a key potential of the use of these PGPB consortiums as biofertilizers for S. ramosissima cash crop production in the Mediterranean, where increasing frequency in HW-events is a major drawback to plant production, even to warm-climate plants
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|a Journal Article
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|a Bioaugmentation
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|a Halophyte
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|a Heatwave stress
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|a Stress physiology
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|a Antioxidants
|2 NLM
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|a Carreiras, João
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fonseca, Bruno
|e verfasserin
|4 aut
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| 700 |
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|a de Carvalho, Ricardo Cruz
|e verfasserin
|4 aut
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| 700 |
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|a Matos, Ana Rita
|e verfasserin
|4 aut
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| 700 |
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|a Caçador, Isabel
|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 199(2023) vom: 15. Juni, Seite 107725
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:199
|g year:2023
|g day:15
|g month:06
|g pages:107725
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|u http://dx.doi.org/10.1016/j.plaphy.2023.107725
|3 Volltext
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