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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/nph.15878
|2 doi
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|a pubmed24n0988.xml
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|a (DE-627)NLM296703583
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|a (NLM)31050802
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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 Yu, Dade
|e verfasserin
|4 aut
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| 245 |
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|a Abscisic acid signalling mediates biomass trade-off and allocation in poplar
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|c 2019
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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 28.02.2020
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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 © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.
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|a Abscisic acid (ABA) is a well known stress hormone regulating drought adaptation of plants. Here, we hypothesised that genetic engineering of genes involved in ABA stress signalling and photoperiodic regulation affected drought resistance by trade-off with biomass production in perennial poplar trees. We grew Populus tremula × tremuloides wild-type (T89) and various transgenic lines (two transformation events of 35S::abi1-1, 35S::RCAR, RCAR:RNAi, 35S::ABI3, 35S::AREB3, 35S::FDL1, FDL1:RNAi, 35S::FDL2 and FDL2:RNAi) outdoors and exposed them to drought in the second growth period. After the winter, the surviving lines showed a huge variation in stomatal conductance, leaf size, whole-plant leaf area, tree height, stem diameter, and biomass. Whole-plant leaf area was a strong predictor for woody biomass production. The 35S::AREB3 lines were compromised in biomass production under well irrigated conditions compared with wild-type poplars but were resilient to drought. ABA signalling regulated FDL1 and FDL2 expression under stress. Poplar lines overexpressing FDL1 or FDL2 were drought-sensitive; they shed leaves and lost root biomass, whereas the FDL RNAi lines showed higher biomass allocation to roots under drought. These results assign a new function in drought acclimation to FDL genes aside from photoperiodic regulation. Our results imply a critical role for ABA-mediated processes in balancing biomass production and climate adaptation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a Populus sp.
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| 650 |
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4 |
|a abscisic acid (ABA)
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| 650 |
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4 |
|a biomass
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| 650 |
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4 |
|a drought
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| 650 |
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|a photoperiod
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| 650 |
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|a seasonality
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| 650 |
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|a transgenic poplars
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|a Gases
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a RNA, Messenger
|2 NLM
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| 650 |
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|a Abscisic Acid
|2 NLM
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| 650 |
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7 |
|a 72S9A8J5GW
|2 NLM
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| 700 |
1 |
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|a Wildhagen, Henning
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tylewicz, Szymon
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Miskolczi, Pal C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bhalerao, Rishikesh P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Polle, Andrea
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 223(2019), 3 vom: 03. Aug., Seite 1192-1203
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:223
|g year:2019
|g number:3
|g day:03
|g month:08
|g pages:1192-1203
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|u http://dx.doi.org/10.1111/nph.15878
|3 Volltext
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