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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2021.153420
|2 doi
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|a pubmed24n1081.xml
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|a (DE-627)NLM324594348
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|a (NLM)33906025
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|a (PII)S0176-1617(21)00059-6
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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 Martínez-Arias, Clara
|e verfasserin
|4 aut
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| 245 |
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|a Stem endophytes increase root development, photosynthesis, and survival of elm plantlets (Ulmus minor Mill.)
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|c 2021
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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 09.06.2021
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|a Date Revised 09.06.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2021 Elsevier GmbH. All rights reserved.
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|a Long-lived trees benefit from fungal symbiotic interactions in the adaptation to constantly changing environments. Previous studies revealed a core fungal endobiome in Ulmus minor which has been suggested to play a critical role in plant functioning. Here, we hypothesized that these core endophytes are involved in abiotic stress tolerance. To test this hypothesis, two core endophytes (Cystobasidiales and Chaetothyriales) were inoculated into in vitro U. minor plantlets, which were further subjected to drought. Given that elm genotypes resistant to Dutch elm disease (DED) tend to show higher abiotic stress tolerance than susceptible ones, we tested the endophyte effect on two DED-resistant and two DED-susceptible genotypes. Drought stress was moderate; endophyte presence attenuated stomata closure in response to drought in one genotype but this stress did not affect plant survival. In comparison, long-term in-vitro culture proved stressful to mock-inoculated plants, especially in DED-susceptible genotypes. Interestingly, no endophyte-inoculated plant died during the experiment, as compared to high mortality in mock-inoculated plants. In surviving plants, endophyte presence stimulated root and shoot growth, photosynthetic rates, antioxidant activity and molecular changes involving auxin-signaling. These changes and the observed endophyte stability in elm tissues throughout the experiment suggest endophytes are potential tools to improve survival and stress tolerance of DED-resistant elms in elm restoration programs
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|a Journal Article
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|a Abiotic stress
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| 650 |
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|a Antioxidant enzymes
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| 650 |
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|a Auxin
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| 650 |
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|a Beneficial interactions
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| 700 |
1 |
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|a Sobrino-Plata, Juan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Medel, David
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gil, Luis
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Martín, Juan Antonio
|e verfasserin
|4 aut
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| 700 |
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|a Rodríguez-Calcerrada, Jesús
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 261(2021) vom: 15. Juni, Seite 153420
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
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|g volume:261
|g year:2021
|g day:15
|g month:06
|g pages:153420
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|u http://dx.doi.org/10.1016/j.jplph.2021.153420
|3 Volltext
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