Abstract:
:Cell-to-cell communication coordinates the behavior of individual cells to establish organ patterning and development. Although mobile signals are known to be important in lateral root development, the role of plasmodesmata (PD)-mediated transport in this process has not been investigated. Here, we show that changes in symplastic connectivity accompany and regulate lateral root organogenesis in Arabidopsis. This connectivity is dependent upon callose deposition around PD affecting molecular flux through the channel. Two plasmodesmal-localized β-1,3 glucanases (PdBGs) were identified that regulate callose accumulation and the number and distribution of lateral roots. The fundamental role of PD-associated callose in this process was illustrated by the induction of similar phenotypes in lines with altered callose turnover. Our results show that regulation of callose and cell-to-cell connectivity is critical in determining the pattern of lateral root formation, which influences root architecture and optimal plant performance.
journal_name
Dev Celljournal_title
Developmental cellauthors
Benitez-Alfonso Y,Faulkner C,Pendle A,Miyashima S,Helariutta Y,Maule Adoi
10.1016/j.devcel.2013.06.010subject
Has Abstractpub_date
2013-07-29 00:00:00pages
136-47issue
2eissn
1534-5807issn
1878-1551pii
S1534-5807(13)00349-3journal_volume
26pub_type
杂志文章abstract::Microglia are the primary immune cells in the brain. Under physiological conditions, they typically stay in a "resting" state, with ramified processes continuously extending to and retracting from surrounding neural tissues. Whether and how such highly dynamic resting microglia functionally interact with surrounding n...
journal_title:Developmental cell
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journal_title:Developmental cell
pub_type: 杂志文章,评审
doi:10.1016/j.devcel.2004.06.010
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journal_title:Developmental cell
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journal_title:Developmental cell
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journal_title:Developmental cell
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journal_title:Developmental cell
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doi:10.1016/j.devcel.2011.04.007
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journal_title:Developmental cell
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journal_title:Developmental cell
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