2010
DOI: 10.1242/dev.049197
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Abstract: SummaryPatterning of stomata, valves on the plant epidermis, requires the orchestrated actions of signaling components and cell-fate determinants. To understand the regulation of stomatal patterning, we performed a genetic screen using a background that partially lacks stomatal signaling receptors. Here, we report the isolation and characterization of chorus (chor), which confers excessive proliferation of stomatal-lineage cells mediated by SPEECHLESS (SPCH). chor breaks redundancy among three ERECTA family ge… Show more

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Cited by 185 publications
(190 citation statements)
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“…Stomatal index (SI; number of stomata/total number of stomata + nonstomatal epidermal cells×100), meristemoid index (MI; number of meristemoids/total number of stomata + non-stomatal epidermal cells×100) and stomatal-lineage index (SLI; number of stomata + meristemoids/total number of stomata + non-stomatal epidermal cells×100) were calculated using TBO-stained 10-day-old cotyledons as well as rosette leaves (fully expanded rosette leaf 4 from 6-week-old plants) as previously reported (Guseman et al, 2010).…”
Section: Quantitative Analysis Of Stomatal Phenotypementioning
confidence: 99%
“…Stomatal index (SI; number of stomata/total number of stomata + nonstomatal epidermal cells×100), meristemoid index (MI; number of meristemoids/total number of stomata + non-stomatal epidermal cells×100) and stomatal-lineage index (SLI; number of stomata + meristemoids/total number of stomata + non-stomatal epidermal cells×100) were calculated using TBO-stained 10-day-old cotyledons as well as rosette leaves (fully expanded rosette leaf 4 from 6-week-old plants) as previously reported (Guseman et al, 2010).…”
Section: Quantitative Analysis Of Stomatal Phenotypementioning
confidence: 99%
“…For example, actin and myosin, which link the desmotubule to the plasma membrane (PM) at the neck region of PD, are believed to play a role in regulating PD permeability by controlling PD aperture (White et al, 1994;Ding et al, 1996;Reichelt et al, 1999). Callose deposition can also impact the size of the PD aperture at the neck region (Radford et al, 1998;Levy et al, 2007) and callose synthase genes such as Glucan SynthaseLike7 (GSL7, also named CalS7), GSL8, and GSL12 have been shown to play a role in regulating symplastic trafficking (Guseman et al, 2010;Barratt et al, 2011;Vatén et al, 2011;Xie et al, 2011). Other proteins that have been shown to impact the structure and function of the PD include glycosylphosphatidylinositol (GPI)-anchored proteins, PD callose binding protein1 (PDCB1), which is also associated with callose deposition (Simpson et al, 2009), and LYSIN MOTIF DOMAIN-CONTAINING GLYCOSYLPHOSPHATIDYLINOSITOL-ANCHORED PROTEIN2, which limits the molecular flux through the PD by chitin perception (Faulkner et al, 2013).…”
mentioning
confidence: 99%
“…This may be important for correct stomatal patterning. In the chorus mutant of Arabidopsis, Guseman et al, (2010) found that decreased callose accumulation at PDs was related to an increase in symplasmic connectivity, leading to aberrant stomatal patterning.…”
Section: Discussionmentioning
confidence: 99%