Počet záznamů: 1

Light can rescue auxin-dependent synchrony of cell division in a tobacco cell line

  1. 1.
    0347997 - UEB-Q 2011 RIV GB eng J - Článek v odborném periodiku
    Qiao, F. - Petrášek, Jan - Nick, P.
    Light can rescue auxin-dependent synchrony of cell division in a tobacco cell line.
    Journal of Experimental Botany. Roč. 61, č. 2 (2010), s. 503-510 ISSN 0022-0957
    Výzkumný záměr: CEZ:AV0Z50380511
    Klíčová slova: Auxin transport * cell division * NPA
    Kód oboru RIV: EB - Genetika a molekulární biologie
    Impakt faktor: 4.818, rok: 2010

    Pattern formation in plants has to cope with ambient variability and therefore must integrate environmental cues such as light. Synchrony of cell divisions was previously observed in cell files of tobacco suspension cultures, which represents a simple case of pattern formation. To develop cellular approaches for light-dependent patterning, light-responsive tobacco cell lines were screened from the cell line Nicotiana tabacum L. cv. Virginia Bright Italia 0 (VBI-0). The light responsive and auxin-autonomous cell line VBI-3 was isolated. As in the progenitor line VBI-0, cell divisions are synchronized in VBI-3 during exponential growth phase. This synchrony can be inhibited by 1-N-naphthylphthalamic acid, an auxin transport inhibitor, and this process was accompanied by the disassembly of actin filaments. However, the synchrony could be rescued when the cells were cultured under white light or with exogenous indolyl-3-acetic acid.
    Trvalý link: http://hdl.handle.net/11104/0188628