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New Phytologist
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New Phytologist
Article . 2018 . Peer-reviewed
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New Phytologist
Article . 2019
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A molecular framework to study periderm formation in Arabidopsis

Authors: Anna Wunderling; Dagmar Ripper; Azahara Barra‐Jimenez; Stefan Mahn; Kathrin Sajak; Mehdi Ben Targem; Laura Ragni;

A molecular framework to study periderm formation in Arabidopsis

Abstract

Summary During secondary growth in most eudicots and gymnosperms, the periderm replaces the epidermis as the frontier tissue protecting the vasculature from biotic and abiotic stresses. Despite its importance, the mechanisms underlying periderm establishment and formation are largely unknown. The herbaceous Arabidopsis thaliana undergoes secondary growth, including periderm formation in the root and hypocotyl. Thus, we focused on these two organs to establish a framework to study periderm development in a model organism. We identified a set of characteristic developmental stages describing periderm growth from the first cell division in the pericycle to the shedding of the cortex and epidermis. We highlight that two independent mechanisms are involved in the loosening of the outer tissues as the endodermis undergoes programmed cell death, whereas the epidermis and the cortex are abscised. Moreover, the phellem of Arabidopsis, as in trees, is suberized, lignified and peels off. In addition, putative regulators from oak and potato are also expressed in the Arabidopsis periderm. Collectively, the periderm of Arabidopsis shares many characteristics/features of woody and tuberous periderms, rendering Arabidopsis thaliana an attractive model for cork biology.

Country
Germany
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Keywords

Microscopy, Confocal, Arabidopsis Proteins, Arabidopsis, Plants, Genetically Modified, Plant Roots, Hypocotyl, Plant Epidermis, Gene Expression Regulation, Plant, Plant Cells, RNA Helicases, Transcription Factors

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    85
    popularity
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    Top 1%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
85
Top 1%
Top 10%
Top 1%
bronze