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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erx199
|2 doi
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|a pubmed24n1334.xml
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|a (DE-627)NLM275316483
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|a (NLM)28859375
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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 Pagliari, Laura
|e verfasserin
|4 aut
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|a Filamentous sieve element proteins are able to limit phloem mass flow, but not phytoplasma spread
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|c 2017
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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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| 500 |
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|a Date Completed 22.02.2018
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|a Date Revised 18.03.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author 2017. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a In Fabaceae, dispersion of forisomes-highly ordered aggregates of sieve element proteins-in response to phytoplasma infection was proposed to limit phloem mass flow and, hence, prevent pathogen spread. In this study, the involvement of filamentous sieve element proteins in the containment of phytoplasmas was investigated in non-Fabaceae plants. Healthy and infected Arabidopsis plants lacking one or two genes related to sieve element filament formation-AtSEOR1 (At3g01680), AtSEOR2 (At3g01670), and AtPP2-A1 (At4g19840)-were analysed. TEM images revealed that phytoplasma infection induces phloem protein filament formation in both the wild-type and mutant lines. This result suggests that, in contrast to previous hypotheses, sieve element filaments can be produced independently of AtSEOR1 and AtSEOR2 genes. Filament presence was accompanied by a compensatory overexpression of sieve element protein genes in infected mutant lines in comparison with wild-type lines. No correlation was found between phloem mass flow limitation and phytoplasma titre, which suggests that sieve element proteins are involved in defence mechanisms other than mechanical limitation of the pathogen
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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 combined microscopy
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|a phloem mass flow
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|a phytoplasmas
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|a sieve element occlusion
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|a sieve element proteins
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| 650 |
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|a Arabidopsis Proteins
|2 NLM
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| 700 |
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|a Buoso, Sara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Santi, Simonetta
|e verfasserin
|4 aut
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| 700 |
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|a Furch, Alexandra C U
|e verfasserin
|4 aut
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| 700 |
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|a Martini, Marta
|e verfasserin
|4 aut
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| 700 |
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|a Degola, Francesca
|e verfasserin
|4 aut
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| 700 |
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|a Loschi, Alberto
|e verfasserin
|4 aut
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| 700 |
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|a van Bel, Aart J E
|e verfasserin
|4 aut
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| 700 |
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|a Musetti, Rita
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 68(2017), 13 vom: 15. Juni, Seite 3673-3688
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:68
|g year:2017
|g number:13
|g day:15
|g month:06
|g pages:3673-3688
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|u http://dx.doi.org/10.1093/jxb/erx199
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|h 3673-3688
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