2009
DOI: 10.1007/s00425-009-1046-8
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Dynamics of plasmodesmal connectivity in successive interfaces of the cambial zone

Abstract: Frequency, density and branching of plasmodesmata were counted in successive tangential and transverse walls in the cambial zone of tomato stems in order to examine development of the plasmodesmal network in a chronological order. Coincident with progress of cell development, plasmodesmal connectivity increased, both at the xylem- and phloem-side. In transverse walls, the number of secondary plasmodesmata enhanced considerably. The same held for tangential walls, with a superimposed plasmodesmal doubling durin… Show more

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Cited by 58 publications
(57 citation statements)
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“…In young developing tissues with predominantly simple PD, do novo PD formation likely occurs via the formation of intermediate structures, such as branched PD without central cavities, herein defined as X-and Y-shaped PD, resulting in twinned PD (3,(15)(16)(17). We predicted that PD transport is related to the frequency of PD formation, that is, the frequency of X-and Y-shaped and twinned PD.…”
Section: Identification Of a Mutant With Decreased Pd Sel In Arabidopsismentioning
confidence: 99%
See 1 more Smart Citation
“…In young developing tissues with predominantly simple PD, do novo PD formation likely occurs via the formation of intermediate structures, such as branched PD without central cavities, herein defined as X-and Y-shaped PD, resulting in twinned PD (3,(15)(16)(17). We predicted that PD transport is related to the frequency of PD formation, that is, the frequency of X-and Y-shaped and twinned PD.…”
Section: Identification Of a Mutant With Decreased Pd Sel In Arabidopsismentioning
confidence: 99%
“…Such young tissues also exhibit branched (X-and Y-shaped) PD and twinned PD, the latter consisting of two closely paired simple PD (15,16). Twinned PD may represent the formation of new secondary PD from existing simple PD via X-and Y-shaped intermediates (3,17). In contrast, mature tissues, such as source leaves, contain mostly branched PD comprising multiple channels that interconnect to form branches through the cytoplasmic sleeve (6,12).…”
mentioning
confidence: 99%
“…Rather, they undergo various types of structural modifications and degeneration/regeneration processes to meet the specific needs of cells that may set out rapid expansion, different developmental phases or differentiation, or adaption processes in response to the changes in various physiological and environmental conditions (Ehlers and Kollmann, 2001;Roberts and Oparka, 2003;Lucas and Lee, 2004;Burch-Smith et al, 2011;Burch-Smith and Zambryski, 2012). For instance, PD frequency and density change as cells grow and develop (Gunning, 1978;Seagull, 1983;Ehlers and Kollmann, 1996;Burch-Smith and Zambryski, 2010;Ehlers and van Bel, 2010) or during shifts from vegetative to reproductive phases (Ormenese et al, 2000;Ormenese et al, 2002;Ormenese et al, 2006); PDs differentiate from simple to complex forms (Faulkner et al, 2008;Fitzgibbon et al, 2013); PDs are completely disintegrated during guard cell maturation (Wille and Lucas, 1984); PD permeability undergoes temporal regulation by environmental conditions, such as daylength and temperature (Ormenese et al, 2006;Bilska and Sowinski, 2010;Rinne et al, 2011), etc. Permeability, dilation, or structure of PDs can be also altered during infection by microbial pathogens (Heinlein, 2002;BenitezAlfonso et al, 2010;Schoelz et al, 2011;Ueki and Citovsky, 2011).…”
Section: Nonexpressor Of Pathogenesis-related Genes1mentioning
confidence: 99%
“…Interestingly, a recent report by Zalepa-King and Citovsky (2013) (Zalepa-King and Citovsky 2013) describe the location of one of these enzymes in plasmodesmata suggesting that it plays a role in these structures. Also, it has been shown that the number of plasmodesmata might significantly increase in the cambial zone of tomato stems (Ehlers and van Bel 2010). Establishing a parallel between the differentiation process of xylem cells from vascular cambium and phellem cell differentiation from cork cambium derivatives, it is expected that rapid cell expansion occurs before active cell wall deposition in the phellem cells.…”
Section: Morais Et Al 2013)mentioning
confidence: 99%