Artículo
JUNGBRUNNEN1 confers drought tolerance downstream of the HD-Zip I Transcription factor AtHB13
Ebrahimian Motlagh, Saghar; Ribone, Pamela Anahí
; Thirumalaikumar, Venkatesh P.; Allu, Annapurna D.; Chan, Raquel Lia
; Mueller Roeber, Bernd; Balazadeh, Salma
Fecha de publicación:
12/2017
Editorial:
Frontiers Research Foundation
Revista:
Frontiers in Plant Science
ISSN:
1664-462X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Low water availability is the major environmental factor limiting growth and productivity of plants and crops and is therefore considered of high importance for agriculture affected by climate change. Identifying regulatory components controlling the response and tolerance to drought stress is thus of major importance. The NAC transcription factor (TF) JUNGBRUNNEN1 (JUB1) from Arabidopsis thaliana extends leaf longevity under non-stress growth conditions, lowers cellular hydrogen peroxide (H2O2) level, and enhances tolerance against heat stress and salinity. Here, we additionally find that JUB1 strongly increases tolerance to drought stress in Arabidopsis when expressed from both, a constitutive (CaMV 35S) and an abiotic stress-induced (RD29A) promoter. Employing a yeast one-hybrid screen we identified HD-Zip class I TF AtHB13 as an upstream regulator of JUB1. AtHB13 has previously been reported to act as a positive regulator of drought tolerance. AtHB13 and JUB1 thereby establish a joint drought stress control module.
Palabras clave:
Arabidopsis
,
Drought
,
Hb13
,
Jub1
,
Transcription Factor
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Articulos(IAL)
Articulos de INSTITUTO DE AGROBIOTECNOLOGIA DEL LITORAL
Articulos de INSTITUTO DE AGROBIOTECNOLOGIA DEL LITORAL
Citación
Ebrahimian Motlagh, Saghar; Ribone, Pamela Anahí; Thirumalaikumar, Venkatesh P.; Allu, Annapurna D.; Chan, Raquel Lia; et al.; JUNGBRUNNEN1 confers drought tolerance downstream of the HD-Zip I Transcription factor AtHB13; Frontiers Research Foundation; Frontiers in Plant Science; 8; 2118; 12-2017; 1-12
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