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Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate

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Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate. / Gan, Yinbo; Liu, Chang; Yu, Hao; Broun, Pierre.

In: Development, Vol. 134, No. 11, 01.06.2007, p. 2073-2081.

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Harvard

Gan, Y, Liu, C, Yu, H & Broun, P 2007, 'Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate', Development, vol. 134, no. 11, pp. 2073-2081. https://doi.org/10.1242/dev.005017

APA

Gan, Y., Liu, C., Yu, H., & Broun, P. (2007). Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate. Development, 134(11), 2073-2081. https://doi.org/10.1242/dev.005017

Vancouver

Gan Y, Liu C, Yu H, Broun P. Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate. Development. 2007 Jun 1;134(11):2073-2081. https://doi.org/10.1242/dev.005017

Author

Gan, Yinbo ; Liu, Chang ; Yu, Hao ; Broun, Pierre. / Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate. In: Development. 2007 ; Vol. 134, No. 11. pp. 2073-2081.

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@article{475a2a491ae247bba78fc28dbbcf3a92,
title = "Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate",
abstract = "The effective integration of hormone signals is essential to normal plant growth and development. Gibberellins (GA) and cytokinins act antagonistically in leaf formation and meristem maintenance and GA counteract some of the effects of cytokinins on epidermal differentiation. However, both can stimulate the initiation of defensive epidermal structures called trichomes. To understand how their relative influence on epidermal cell fate is modulated, we investigated the molecular mechanisms through which they regulate trichome initiation in Arabidopsis. The control by cytokinins of trichome production requires two genes expressed in late inflorescence organs, ZFP8 and GIS2, which encode C2H2 transcription factors related to GLABROUS INFLORESCENCE STEMS ( GIS). Cytokinin-inducible GIS2 plays a prominent role in the cytokinin response, in which it acts downstream of SPINDLY and upstream of GLABROUS1. In addition, GIS2 and ZFP8 mediate, like GIS, the regulation of trichome initiation by gibberellins. By contrast, GIS does not play a significant role in the cytokinin response. Collectively, GIS, ZFP8 and GIS2, which encode proteins that are largely equivalent in function, play partially redundant and essential roles in inflorescence trichome initiation and in its regulation by GA and cytokinins. These roles are consistent with their pattern of expression and with the regional influence of GA and cytokinins on epidermal differentiation. Our findings show that functional specialization within a transcription factor gene family can facilitate the integration of different developmental cues in the regulation of plant cell differentiation.",
keywords = "cytokinins, epidermis, gibberellins, transcription factor, trichomes, Arabidopsis, THALIANA L HEYNH, TRICHOME FORMATION, PROTEIN, REPRESSOR, RESPONSES, GENES, ENCODES, PATHWAY, GROWTH, PLANTS",
author = "Yinbo Gan and Chang Liu and Hao Yu and Pierre Broun",
year = "2007",
month = jun,
day = "1",
doi = "10.1242/dev.005017",
language = "English",
volume = "134",
pages = "2073--2081",
journal = "Development",
issn = "0950-1991",
number = "11",

}

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TY - JOUR

T1 - Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate

AU - Gan, Yinbo

AU - Liu, Chang

AU - Yu, Hao

AU - Broun, Pierre

PY - 2007/6/1

Y1 - 2007/6/1

N2 - The effective integration of hormone signals is essential to normal plant growth and development. Gibberellins (GA) and cytokinins act antagonistically in leaf formation and meristem maintenance and GA counteract some of the effects of cytokinins on epidermal differentiation. However, both can stimulate the initiation of defensive epidermal structures called trichomes. To understand how their relative influence on epidermal cell fate is modulated, we investigated the molecular mechanisms through which they regulate trichome initiation in Arabidopsis. The control by cytokinins of trichome production requires two genes expressed in late inflorescence organs, ZFP8 and GIS2, which encode C2H2 transcription factors related to GLABROUS INFLORESCENCE STEMS ( GIS). Cytokinin-inducible GIS2 plays a prominent role in the cytokinin response, in which it acts downstream of SPINDLY and upstream of GLABROUS1. In addition, GIS2 and ZFP8 mediate, like GIS, the regulation of trichome initiation by gibberellins. By contrast, GIS does not play a significant role in the cytokinin response. Collectively, GIS, ZFP8 and GIS2, which encode proteins that are largely equivalent in function, play partially redundant and essential roles in inflorescence trichome initiation and in its regulation by GA and cytokinins. These roles are consistent with their pattern of expression and with the regional influence of GA and cytokinins on epidermal differentiation. Our findings show that functional specialization within a transcription factor gene family can facilitate the integration of different developmental cues in the regulation of plant cell differentiation.

AB - The effective integration of hormone signals is essential to normal plant growth and development. Gibberellins (GA) and cytokinins act antagonistically in leaf formation and meristem maintenance and GA counteract some of the effects of cytokinins on epidermal differentiation. However, both can stimulate the initiation of defensive epidermal structures called trichomes. To understand how their relative influence on epidermal cell fate is modulated, we investigated the molecular mechanisms through which they regulate trichome initiation in Arabidopsis. The control by cytokinins of trichome production requires two genes expressed in late inflorescence organs, ZFP8 and GIS2, which encode C2H2 transcription factors related to GLABROUS INFLORESCENCE STEMS ( GIS). Cytokinin-inducible GIS2 plays a prominent role in the cytokinin response, in which it acts downstream of SPINDLY and upstream of GLABROUS1. In addition, GIS2 and ZFP8 mediate, like GIS, the regulation of trichome initiation by gibberellins. By contrast, GIS does not play a significant role in the cytokinin response. Collectively, GIS, ZFP8 and GIS2, which encode proteins that are largely equivalent in function, play partially redundant and essential roles in inflorescence trichome initiation and in its regulation by GA and cytokinins. These roles are consistent with their pattern of expression and with the regional influence of GA and cytokinins on epidermal differentiation. Our findings show that functional specialization within a transcription factor gene family can facilitate the integration of different developmental cues in the regulation of plant cell differentiation.

KW - cytokinins

KW - epidermis

KW - gibberellins

KW - transcription factor

KW - trichomes

KW - Arabidopsis

KW - THALIANA L HEYNH

KW - TRICHOME FORMATION

KW - PROTEIN

KW - REPRESSOR

KW - RESPONSES

KW - GENES

KW - ENCODES

KW - PATHWAY

KW - GROWTH

KW - PLANTS

U2 - 10.1242/dev.005017

DO - 10.1242/dev.005017

M3 - Article

VL - 134

SP - 2073

EP - 2081

JO - Development

JF - Development

SN - 0950-1991

IS - 11

ER -