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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19022
|2 doi
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|a pubmed24n1194.xml
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|a (DE-627)NLM358225647
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|a (NLM)37320971
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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 |
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|a Pitsili, Eugenia
|e verfasserin
|4 aut
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| 245 |
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|a A phloem-localized Arabidopsis metacaspase (AtMC3) improves drought tolerance
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|c 2023
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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
|b cr
|2 rdacarrier
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|a Date Completed 14.07.2023
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|a Date Revised 18.07.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 The Authors. New Phytologist © 2023 New Phytologist Foundation.
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|a Increasing drought phenomena pose a serious threat to agricultural productivity. Although plants have multiple ways to respond to the complexity of drought stress, the underlying mechanisms of stress sensing and signaling remain unclear. The role of the vasculature, in particular the phloem, in facilitating inter-organ communication is critical and poorly understood. Combining genetic, proteomic and physiological approaches, we investigated the role of AtMC3, a phloem-specific member of the metacaspase family, in osmotic stress responses in Arabidopsis thaliana. Analyses of the proteome in plants with altered AtMC3 levels revealed differential abundance of proteins related to osmotic stress pointing into a role of the protein in water-stress-related responses. Overexpression of AtMC3 conferred drought tolerance by enhancing the differentiation of specific vascular tissues and maintaining higher levels of vascular-mediated transportation, while plants lacking the protein showed an impaired response to drought and inability to respond effectively to the hormone abscisic acid. Overall, our data highlight the importance of AtMC3 and vascular plasticity in fine-tuning early drought responses at the whole plant level without affecting growth or yield
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis thaliana
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|a abscisic acid
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|a drought
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|a hypoxia
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|a metacaspases
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|a osmotic stress
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|a phloem
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Abscisic Acid
|2 NLM
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|a 72S9A8J5GW
|2 NLM
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| 700 |
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|a Rodriguez-Trevino, Ricardo
|e verfasserin
|4 aut
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|a Ruiz-Solani, Nerea
|e verfasserin
|4 aut
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|a Demir, Fatih
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|a Kastanaki, Elizabeth
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|4 aut
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|a Dambire, Charlene
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|a de Pedro-Jové, Roger
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|a Vercammen, Dominique
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|a Salguero-Linares, Jose
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|4 aut
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|a Hall, Hardy
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|a Mantz, Melissa
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|a Schuler, Martin
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|a Tuominen, Hannele
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|a Van Breusegem, Frank
|e verfasserin
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|a Valls, Marc
|e verfasserin
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|a Munné-Bosch, Sergi
|e verfasserin
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|a Holdsworth, Michael J
|e verfasserin
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|a Huesgen, Pitter F
|e verfasserin
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|a Rodriguez-Villalon, Antia
|e verfasserin
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|a Coll, Nuria S
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 239(2023), 4 vom: 20. Aug., Seite 1281-1299
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:239
|g year:2023
|g number:4
|g day:20
|g month:08
|g pages:1281-1299
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| 856 |
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|u http://dx.doi.org/10.1111/nph.19022
|3 Volltext
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