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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erz172
|2 doi
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|a pubmed24n0986.xml
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|e rakwb
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|a eng
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| 100 |
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|a van Bel, Aart J E
|e verfasserin
|4 aut
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| 245 |
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|a Sieve element biology provides leads for research on phytoplasma lifestyle in plant hosts
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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
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|2 rdacarrier
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|a Date Completed 20.07.2020
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|a Date Revised 20.07.2020
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Phytoplasmas reside exclusively in sieve tubes, tubular arrays of sieve element-companion cell complexes. Hence, the cell biology of sieve elements may reveal (ultra)structural and functional conditions that are of significance for survival, propagation, colonization, and effector spread of phytoplasmas. Electron microscopic images suggest that sieve elements offer facilities for mobile and stationary stages in phytoplasma movement. Stationary stages may enable phytoplasmas to interact closely with diverse sieve element compartments. The unique, reduced sieve element outfit requires permanent support by companion cells. This notion implies a future focus on the molecular biology of companion cells to understand the sieve element-phytoplasma inter-relationship. Supply of macromolecules by companion cells is channelled via specialized symplasmic connections. Ca2+-mediated gating of symplasmic corridors is decisive for the communication within and beyond the sieve element-companion cell complex and for the dissemination of phytoplasma effectors. Thus, Ca2+ homeostasis, which affects sieve element Ca2+ signatures and induces a range of modifications, is a key issue during phytoplasma infection. The exceptional physical and chemical environment in sieve elements seems an essential, though not the only factor for phytoplasma survival
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|a Journal Article
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|a Ca2+ homeostasis
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|a Ca2+ signatures
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|a companion cells
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|a phloem cell biology
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| 650 |
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|a phytoplasma cultivation media
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|a phytoplasma research
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| 650 |
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|a pore–plasmodesma units
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| 650 |
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|a sieve elements
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|a sieve element–phytoplasma interaction
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|a sieve pores
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|a Calcium
|2 NLM
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|a SY7Q814VUP
|2 NLM
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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 70(2019), 15 vom: 07. Aug., Seite 3737-3755
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|x 1460-2431
|7 nnns
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|g volume:70
|g year:2019
|g number:15
|g day:07
|g month:08
|g pages:3737-3755
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|u http://dx.doi.org/10.1093/jxb/erz172
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