The MYB96 Transcription Factor Mediates Abscisic Acid Signaling during Drought Stress Response in Arabidopsis

Oxford University Press (OUP) - Tập 151 Số 1 - Trang 275-289 - 2009
Pil Joon Seo1, Fengning Xiang1, Meng Qiao1, Ju Young Park1, Young Na Lee1, Sang‐Gyu Kim1, Yong‐Hwan Lee1, Woong June Park1, Chung‐Mo Park1
1Molecular Signaling Laboratory, Department of Chemistry (P.J.S., S.-G.K., C.-M.P.), Department of Agricultural Biotechnology and Center for Fungal Pathogenesis (J.-Y.P., Y.-H.L.), and Plant Genomics and Breeding Institute (C.-M.P.), Seoul National University, Seoul, Korea 151–742; Key Laboratory of Plant Cell Engineering and Germplasm Innovation, School of Life Sciences, Shandong University, Jina

Tóm tắt

AbstractPlant adaptive responses to drought are coordinated by adjusting growth and developmental processes as well as molecular and cellular activities. The root system is the primary site that perceives drought stress signals, and its development is profoundly affected by soil water content. Various growth hormones, particularly abscisic acid (ABA) and auxin, play a critical role in root growth under drought through complex signaling networks. Here, we report that a R2R3-type MYB transcription factor, MYB96, regulates drought stress response by integrating ABA and auxin signals. The MYB96-mediated ABA signals are integrated into an auxin signaling pathway that involves a subset of GH3 genes encoding auxin-conjugating enzymes. A MYB96-overexpressing Arabidopsis (Arabidopsis thaliana) mutant exhibited enhanced drought resistance with reduced lateral roots. In the mutant, while lateral root primordia were normally developed, meristem activation and lateral root elongation were suppressed. In contrast, a T-DNA insertional knockout mutant was more susceptible to drought. Auxin also induces MYB96 primarily in the roots, which in turn induces the GH3 genes and modulates endogenous auxin levels during lateral root development. We propose that MYB96 is a molecular link that mediates ABA-auxin cross talk in drought stress response and lateral root growth, providing an adaptive strategy under drought stress conditions.

Từ khóa


Tài liệu tham khảo

2003, Plant Cell, 15, 63, 10.1105/tpc.006130

2004, J Biol Chem, 279, 32979, 10.1074/jbc.M403171200

2003, Plant J, 34, 67, 10.1046/j.1365-313X.2003.01707.x

2002, Plant Physiol, 129, 1533, 10.1104/pp.005793

2004, Plant Cell, 16, 406, 10.1105/tpc.018077

2003, Trends Plant Sci, 8, 165, 10.1016/S1360-1385(03)00051-7

1995, Genes Dev, 9, 2131, 10.1101/gad.9.17.2131

2005, Plant J, 43, 17, 10.1111/j.1365-313X.2005.02425.x

2003, Plant J, 33, 543, 10.1046/j.1365-313X.2003.01652.x

2008, Science, 322, 594, 10.1126/science.1160158

2006, Trends Plant Sci, 11, 434, 10.1016/j.tplants.2006.07.003

2007, Plant Cell, 19, 2225, 10.1105/tpc.106.048017

2000, Plant Physiol, 124, 1648, 10.1104/pp.124.4.1648

2008, Proc Natl Acad Sci USA, 105, 8790, 10.1073/pnas.0712307105

2005, Curr Opin Plant Biol, 8, 183, 10.1016/j.pbi.2005.01.011

2008, Plant Biotechnol J, 6, 609, 10.1111/j.1467-7652.2008.00346.x

2002, Trends Plant Sci, 7, 61, 10.1016/S1360-1385(01)02186-0

2002, Plant Cell, 14, 2339, 10.1105/tpc.004960

2003, Trends Plant Sci, 8, 534, 10.1016/j.tplants.2003.09.013

2008, Plant J, 55, 335, 10.1111/j.1365-313X.2008.03528.x

2004, Mol Ecol, 13, 3609, 10.1111/j.1365-294X.2004.02343.x

2008, Plant Physiol, 146, 623, 10.1104/pp.107.110981

2006, Plant Cell, 18, 3132, 10.1105/tpc.106.043018

1998, Plant J, 16, 393, 10.1046/j.1365-313x.1998.00304.x

2007, Plant Cell, 19, 3889

2005, Curr Biol, 15, 1201, 10.1016/j.cub.2005.06.041

2005, Proc Natl Acad Sci USA, 102, 13693, 10.1073/pnas.0504219102

1995, Plant J, 8, 457, 10.1046/j.1365-313X.1995.08030457.x

2002, Plant Mol Biol, 49, 249, 10.1023/A:1015298812300

2005, Plant Cell Environ, 28, 67, 10.1111/j.1365-3040.2005.01306.x

1997, Development, 124, 33, 10.1242/dev.124.1.33

2001, Plant Physiol, 127, 899, 10.1104/pp.010406

2005, Plant Cell, 17, 1360, 10.1105/tpc.105.031716

2000, Plant Physiol, 122, 621, 10.1104/pp.122.3.621

2001, Plant J, 25, 213, 10.1046/j.1365-313x.2001.00957.x

1997, Physiol Plant, 100, 431, 10.1111/j.1399-3054.1997.tb03047.x

2007, J Biol Chem, 282, 10036, 10.1074/jbc.M610524200

2008, J Exp Bot, 59, 1201, 10.1093/jxb/ern027

2000

2008, Plant Cell, 20, 752, 10.1105/tpc.107.054858

2002, Proc Natl Acad Sci USA, 99, 1064, 10.1073/pnas.022516199

2005, Plant Cell, 17, 1343, 10.1105/tpc.105.031625

2005, Plant Cell, 17, 616, 10.1105/tpc.104.026690

2002, Plant Cell, 14, 1405, 10.1105/tpc.000885

2001, Curr Opin Plant Biol, 4, 447, 10.1016/S1369-5266(00)00199-0

2001, Plant J, 28, 409, 10.1046/j.1365-313X.2001.01165.x

2003, Plant J, 35, 44, 10.1046/j.1365-313X.2003.01786.x

2000, J Exp Bot, 51, 1563, 10.1093/jexbot/51.350.1563

2008, Plant Cell, 20, 1736, 10.1105/tpc.108.061143

1997, Plant Cell, 9, 1963

2008, Plant Physiol, 146, 1293, 10.1104/pp.107.113829

2005, Plant Physiol, 139, 1099, 10.1104/pp.105.069906

1998, Plant J, 15, 501, 10.1046/j.1365-313X.1998.00231.x

2000, Plant Physiol, 122, 1003, 10.1104/pp.122.4.1003

2000, Genes Dev, 14, 3024, 10.1101/gad.852200

2002, Nature, 12, 167

2006, Plant Physiol, 142, 1065, 10.1104/pp.106.084632

1993, Mol Gen Genet, 238, 17

2006, Plant Mol Biol, 60, 107, 10.1007/s11103-005-2910-y

2008, Plant Cell, 20, 1134, 10.1105/tpc.108.058263

2007, Plant Cell, 19, 1912, 10.1105/tpc.106.048488

Thông tin
Thông tin xuất bản

Oxford University Press (OUP)

Tập 151 Số 1

275-289

Thông tin tác giả