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GBF3 transcription factor imparts drought tolerance in Arabidopsis thaliana

by Gill, Upinder Singh , Gupta, Chirag , Pereira, Andy , Nataraja, Karaba N. , Sivalingam, Palaiyur Nanjappan , Govind, Geetha , Ramegowda, Venkategowda , Mysore, Kirankumar S. , Udayakumar, Makarla , Gupta, Aarti , Senthil-Kumar, Muthappa

in 13 / 42 / 42/89 / 631/1647/1511 / 631/449/1736 / 631/449/2661/2146 / 64 / Arabidopsis - genetics / Arabidopsis - growth & development / Arabidopsis thaliana / Cereal crops / Drought / Drought resistance / Droughts / Eleusine - genetics / Eleusine coracana / G-Box Binding Factors - genetics / Gene Expression Profiling / Gene Expression Regulation, Plant / Gene silencing / Genes / Humanities and Social Sciences / Millet / multidisciplinary / Mutation / Osmotic stress / Plant Proteins - genetics / Plant species / Science / Science (multidisciplinary) / Stress, Physiological / Subtractive Hybridization Techniques / Transgenic plants / Zea mays / Zea mays - genetics

2017

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GBF3 transcription factor imparts drought tolerance in Arabidopsis thaliana

2017

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2017

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Journal Article

GBF3 transcription factor imparts drought tolerance in Arabidopsis thaliana

Gill, Upinder Singh,

Gupta, Chirag,

Pereira, Andy,

Nataraja, Karaba N.,

Sivalingam, Palaiyur Nanjappan,

Govind, Geetha,

Ramegowda, Venkategowda,

Mysore, Kirankumar S.,

Udayakumar, Makarla,

Gupta, Aarti,

Senthil-Kumar, Muthappa

2017

Overview

Drought transcriptome analysis of finger millet ( Eleusine coracana ) by cDNA subtraction identified drought responsive genes that have a potential role in drought tolerance. Through virus-induced gene silencing (VIGS) in a related crop species, maize ( Zea mays ), several genes, including a G-BOX BINDING FACTOR 3 ( GBF3 ) were identified as candidate drought stress response genes and the role of GBF3 in drought tolerance was studied in Arabidopsis thaliana . Overexpression of both EcGBF3 and AtGBF3 in A. thaliana resulted in improved tolerance to osmotic stress, salinity and drought stress in addition to conferring insensitivity to ABA. Conversely, loss of function of this gene increased the sensitivity of A. thaliana plants to drought stress. EcGBF3 transgenic A. thaliana results also suggest that drought tolerance of sensitive plants can be improved by transferring genes from far related crops like finger millet. Our results demonstrate the role of GBF3 in imparting drought tolerance in A. thaliana and indicate the conserved role of this gene in drought and other abiotic stress tolerance in several plant species.

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Publisher

Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio

Subject

/ 42

/ 42/89

/ 631/1647/1511

/ 631/449/1736

/ 631/449/2661/2146

/ 64

/ Arabidopsis - genetics