title: Division polarity in developing stomata.
abstract: Stomata are generated via asymmetric cell division in both dicots and monocots. Intrinsic or extrinsic polarity cues are perceived and acted upon to generate mother cell polarity and determine asymmetric division planes. Arabidopsis employs both intrinsic and extrinsic cues to orient a variable series of asymmetric stomatal divisions, using novel proteins such as BASL and POLAR to generate polarity. In contrast, maize appears to employ only extrinsic cues to orient the polarities of divisions occurring in an invariant sequence to generate stomatal complexes. Although both plants use receptor-like kinases to generate or orient division polarity in developing stomata, there are few similarities in the proteins and pathway identified to date as regulators of these processes.
authors.affiliation: Section of Cell and Developmental Biology, University of California San Diego, La Jolla, CA 92093-0116, United States.
authors.forename: Michelle R
authors.initials: MR
authors.lastname: Facette
authors.forename: Laurie G
authors.initials: LG
authors.lastname: Smith
mesh_terms: D017360:Arabidopsis / Q000166:cytology* / Q000201:enzymology / Q000378:metabolism; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism; D060049:Asymmetric Cell Division; D018797:Cell Cycle Proteins / Q000235:genetics / Q000378:metabolism; D002467:Cell Nucleus / Q000378:metabolism; D016764:Cell Polarity; D004721:Endoplasmic Reticulum / Q000378:metabolism; D008938:Mitosis; D059828:Plant Cells / Q000378:metabolism; D018515:Plant Leaves / Q000166:cytology / Q000378:metabolism; D054046:Plant Stomata / Q000166:cytology* / Q000378:metabolism; D013045:Species Specificity; D003313:Zea mays / Q000166:cytology
chemical_list: D029681:Arabidopsis Proteins; C542095:BASL protein, Arabidopsis; D018797:Cell Cycle Proteins