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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2019.04.011
|2 doi
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|a pubmed24n0989.xml
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|a (NLM)31071544
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|a (PII)S0176-1617(19)30056-2
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Rozier, Camille
|e verfasserin
|4 aut
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|a Biopriming of maize germination by the plant growth-promoting rhizobacterium Azospirillum lipoferum CRT1
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 06.08.2019
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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 © 2019 Elsevier GmbH. All rights reserved.
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|a Plant growth-promoting rhizobacteria (PGPR) naturally aid plant growth, development and tolerance to stress. Yield increase by the commercial isolate Azospirillum lipoferum CRT1 was recently attributed to an enhanced sprouting success. In order to provide the first biochemical and physiological analysis of sprouting enhancement by PGPR, seed germination and metabolism were followed by time-lapse photography and GC/MS-based metabolomics, respectively, after inoculating two differentially-responding maize cultivars with A. lipoferum CRT1. Bacterial growth on the seeds and plantlet development were also determined. Bacterial inoculation of the seeds of one cultivar led to a 6-8 h hastening of radicle emergence, increased surface bacterial counts, lower contents of energetic primary metabolites before radicle emergence and increased photosynthetic yield, and root surface area, in 3-leaf plantlets. None of these changes were observed on the other maize cultivar that rather accumulated greater levels of stress-related metabolites shortly after radicle emergence. Bacterial counts and cell division-driven central root growth increased in parallel and similarly on both cultivars. A. lipoferum CRT1 stimulated pre-germinating or defense events in a cultivar-dependent manner in maize after rapid (less than 24 h) recognition with initially resting seeds. This PGPR isolate therefore bears agronomic potential as a biopriming agent
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|a Journal Article
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|a Azospirillum
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|a Biopriming
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|a Germination
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|a Maize
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|a PGPR
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|a Seed metabolism
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|a Gerin, Florence
|e verfasserin
|4 aut
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|a Czarnes, Sonia
|e verfasserin
|4 aut
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| 700 |
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|a Legendre, Laurent
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 237(2019) vom: 30. Juni, Seite 111-119
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
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|g volume:237
|g year:2019
|g day:30
|g month:06
|g pages:111-119
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|u http://dx.doi.org/10.1016/j.jplph.2019.04.011
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