2009
DOI: 10.1242/dev.032938
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Abstract: *Stomata are adjustable pores in the plant epidermis that regulate gas exchange between the plant and atmosphere; they are present on the aerial portions of most higher plants. Genetic pathways controlling stomatal development and distribution have been described in some detail for one dicot species, Arabidopsis, in which three paralogous bHLH transcription factors, FAMA, MUTE and SPCH, control discrete sequential stages in stomatal development. Orthologs of FAMA, MUTE and SPCH are present in other flowering p… Show more

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Cited by 151 publications
(194 citation statements)
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References 23 publications
(45 reference statements)
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“…Os MUTE and maize Zm MUTE were expressed earlier in development than their Arabidopsis ortholog, at the time of cell file specification. Ectopic overexpression of Os MUTE and Zm MUTE in Arabidopsis caused conversion of epidermal cells into stomata to varying degrees, a phenotype similar to that of At MUTE overexpression (Liu et al, 2009), and they were able to partially rescue the Arabidopsis mute mutant when expressed under the native Arabidopsis promoter (Liu et al, 2009). In mutants of Os FAMA, GCs fail to differentiate into the dumbbell shape of wild-type GCs, implying that Os FAMA controls GC fate, though there are none of the extra cell divisions seen in Arabidopsis fama plants (Liu et al, 2009).…”
Section: Stomatal Patterning and Differentiation In Grassesmentioning
confidence: 89%
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“…Os MUTE and maize Zm MUTE were expressed earlier in development than their Arabidopsis ortholog, at the time of cell file specification. Ectopic overexpression of Os MUTE and Zm MUTE in Arabidopsis caused conversion of epidermal cells into stomata to varying degrees, a phenotype similar to that of At MUTE overexpression (Liu et al, 2009), and they were able to partially rescue the Arabidopsis mute mutant when expressed under the native Arabidopsis promoter (Liu et al, 2009). In mutants of Os FAMA, GCs fail to differentiate into the dumbbell shape of wild-type GCs, implying that Os FAMA controls GC fate, though there are none of the extra cell divisions seen in Arabidopsis fama plants (Liu et al, 2009).…”
Section: Stomatal Patterning and Differentiation In Grassesmentioning
confidence: 89%
“…Grasses contain orthologs (genes in different species that evolved from a common ancestor) of the master regulatory genes of Arabidopsis stomatal differentiation, SPCH, MUTE, and FAMA (Liu et al, 2009). Although the transcripts of the two Os SPCH genes were detected only in coleoptiles, one of them showed a decrease in entry into the stomatal lineage when mutated (Liu et al, 2009). This suggests that in rice, at least one of the SPCH genes controls initial cell lineage divisions; it may have additional functions that are redundant with the second Os SPCH, in which a mutation has not yet been found.…”
Section: Stomatal Patterning and Differentiation In Grassesmentioning
confidence: 99%
“…Stomata are essential structures and have been found in plant fossils dating from 400 million years ago. Evidence that the genetic networks for cell fate and patterns described in Arabidopsis are conserved comes from comparative genomic studies Vatén and Bergmann, 2012) and functional studies in extant species of the basal plant lineages (MacAlister and Bergmann, 2011), as well as in plants with highly modified leaf and stomatal structures (Liu et al, 2009). An exciting future direction is to identify key genes that correlate with stomatal innovations across plant groups and to create plants with a wide range of stomatal alterations that would allow eco-physiologists to test models about stomata at the whole plant or whole planet level.…”
Section: Discussionmentioning
confidence: 99%
“…As such, positional signals must trigger the specification of stomatal cell fate. Because stomatal cell files are specified in positions flanking procambial centers, it is conceivable that positional signals emanating from the developing vein either inhibit stomatal specification in epidermal cells directly above and below the procambium or induce specification in epidermal cell files at the flanks of the procambial center.In rice (Oryza sativa ssp japonica), maize, and the model grass Brachypodium distachyon, stomatal identity and differentiation appear to be regulated by the same group of basic helix-loop-helix (bHLH) transcription factors that operate in the well-established pathway that was discovered in the eudicot Arabidopsis (Arabidopsis thaliana; Liu et al, 2009;Raissig et al, 2016Raissig et al, , 2017. However, orthologous genes have been adopted into different roles in the two patterning networks.…”
mentioning
confidence: 99%
“…In rice (Oryza sativa ssp japonica), maize, and the model grass Brachypodium distachyon, stomatal identity and differentiation appear to be regulated by the same group of basic helix-loop-helix (bHLH) transcription factors that operate in the well-established pathway that was discovered in the eudicot Arabidopsis (Arabidopsis thaliana; Liu et al, 2009;Raissig et al, 2016Raissig et al, , 2017. However, orthologous genes have been adopted into different roles in the two patterning networks.…”
mentioning
confidence: 99%