TY - JOUR
T1 - A genetic regulatory network in the development of trichomes and root hairs
AU - Ishida, Tetsuya
AU - Kurata, Tetsuya
AU - Okada, Kiyotaka
AU - Wada, Takuji
PY - 2008
Y1 - 2008
N2 - Trichomes and root hairs differentiate from epidermal cells in the aerial tissues and roots, respectively. Because trichomes and root hairs are easily accessible, particularly in the model plant Arabidopsis, their development has become a well-studied model of cell differentiation and growth. Molecular genetic analyses using Arabidopsis mutants have demonstrated that the differentiation of trichomes and root hair/hairless cells is regulated by similar molecular mechanisms. Transcriptional complexes regulate differentiation into trichome cells and root hairless cells, and formation of the transcriptional complexes is inhibited in neighboring cells. Control of cell growth after fate determination has also been analyzed using Arabidopsis mutants. The progression of endoreduplication cycles, reorientation of microtubules, and organization of the actin cytoskeleton play important roles in trichome growth. Various cellular components such as ion channels, the actin cytoskeleton, microtubules and cell wall materials, and intracellular signal transduction act to establish and maintain root hair tip growth.
AB - Trichomes and root hairs differentiate from epidermal cells in the aerial tissues and roots, respectively. Because trichomes and root hairs are easily accessible, particularly in the model plant Arabidopsis, their development has become a well-studied model of cell differentiation and growth. Molecular genetic analyses using Arabidopsis mutants have demonstrated that the differentiation of trichomes and root hair/hairless cells is regulated by similar molecular mechanisms. Transcriptional complexes regulate differentiation into trichome cells and root hairless cells, and formation of the transcriptional complexes is inhibited in neighboring cells. Control of cell growth after fate determination has also been analyzed using Arabidopsis mutants. The progression of endoreduplication cycles, reorientation of microtubules, and organization of the actin cytoskeleton play important roles in trichome growth. Various cellular components such as ion channels, the actin cytoskeleton, microtubules and cell wall materials, and intracellular signal transduction act to establish and maintain root hair tip growth.
KW - Cell differentiation
KW - Endoreduplication
KW - Tip growth
UR - http://www.scopus.com/inward/record.url?scp=44949213903&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44949213903&partnerID=8YFLogxK
U2 - 10.1146/annurev.arplant.59.032607.092949
DO - 10.1146/annurev.arplant.59.032607.092949
M3 - Review article
C2 - 18257710
AN - SCOPUS:44949213903
VL - 59
SP - 365
EP - 386
JO - Annual Review of Plant Physiology and Plant Molecular Biology
JF - Annual Review of Plant Physiology and Plant Molecular Biology
SN - 1543-5008
ER -