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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/err083
|2 doi
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|a pubmed25n0689.xml
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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 |
1 |
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|a Renier, Adeline
|e verfasserin
|4 aut
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|a Nodulation of Crotalaria podocarpa DC. by Methylobacterium nodulans displays very unusual features
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|c 2011
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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
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|2 rdacarrier
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|a Date Completed 27.10.2011
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|a Date Revised 07.07.2011
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Crotalaria are plants of the Fabaceae family whose nodulation characteristics have been little explored despite the recent discovery of their unexpected ability to be efficiently nodulated in symbiosis with bacteria of the genus Methylobacterium. It has been shown that methylotrophy plays a key role in this unusual symbiotic system, as it is expressed within the nodule and as non-methylotroph mutants had a depleting effect on plant growth response. Within the nodule, Methylobacterium is thus able to obtain carbon both from host plant photosynthesis and from methylotrophy. In this context, the aim of the present study was to show the histological and cytological impacts of both symbiotic and methylotrophic metabolism within Crotalaria podocarpa nodules. It was established that if Crotalaria nodules are multilobed, each lobe has the morphology of indeterminate nodules but with a different anatomy; that is, without root hair infection or infection threads. In the fixation zone, bacteroids display a spherical shape and there is no uninfected cell. Crotalaria nodulation by Methylobacterium displayed some very unusual characteristics such as starch storage within bacteroid-filled cells of the fixation zone and also the complete lysis of apical nodular tissues (where bacteria have a free-living shape and express methylotrophy). This lysis could possibly reflect the bacterial degradation of plant wall pectins through bacterial pectin methyl esterases, thus producing methanol as a substrate, allowing bacterial multiplication before release from the nodule
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|a Journal Article
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|a De Faria, Sergio Miana
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jourand, Philippe
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Giraud, Eric
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dreyfus, Bernard
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rapior, Sylvie
|e verfasserin
|4 aut
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| 700 |
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|a Prin, Yves
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 62(2011), 10 vom: 21. Juni, Seite 3693-7
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
1 |
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|g volume:62
|g year:2011
|g number:10
|g day:21
|g month:06
|g pages:3693-7
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|u http://dx.doi.org/10.1093/jxb/err083
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