TITLE

The Maize OST1 Kinase Homolog Phosphorylates and Regulates the Maize SNAC1-Type Transcription Factor

AUTHOR(S)
Vilela, Belmiro; Moreno-Cortés, Alicia; Rabissi, Agnese; Leung, Jeffrey; Pagès, Montserrat; Lumbreras, Victoria
PUB. DATE
February 2013
SOURCE
PLoS ONE;Feb2013, Vol. 8 Issue 2, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The Arabidopsis kinase OPEN STOMATA 1 (OST1) plays a key role in regulating drought stress signalling, particularly stomatal closure. We have identified and investigated the functions of the OST1 ortholog in Z. mays (ZmOST1). Ectopic expression of ZmOST1 in the Arabidopsis ost1 mutant restores the stomatal closure phenotype in response to drought. Furthermore, we have identified the transcription factor, ZmSNAC1, which is directly phosphorylated by ZmOST1 with implications on its localization and protein stability. Interestingly, ZmSNAC1 binds to the ABA-box of ZmOST1, which is conserved in SnRK2s activated by ABA and is part of the contact site for the negative-regulating clade A PP2C phosphatases. Taken together, our results indicate that ZmSNAC1 is a substrate of ZmOST1 and delineate a novel osmotic stress transcriptional pathway in maize.
ACCESSION #
87625763

 

Related Articles

  • Globular adiponectin regulates energy homeostasis through AMP-activated protein kinase-acetyl-CoA carboxylase (AMPK/ACC) pathway in the hypothalamus. Wen, Jun-Ping; Liu, Chun-e; Hu, Ya-Ting; Chen, Gang; Lin, Li-xiang // Molecular & Cellular Biochemistry;Nov2010, Vol. 344 Issue 1/2, p109 

    diponectin is a newly researched adipokine which participates in the regulation of energy homeostasis. AMP-activated protein kinase (AMPK) represents an energy sensor that responds to hormone and nutrition status in vivo and exerts a regulatory effect in the hypothalamus and multiple peripheral...

  • Characterization of mitogen activated protein kinases (MAPKs) in the Curcuma longa expressed sequence tag database. Joshi, Raj Kumar; Kar, Basudeba; Nayak, Sanghamitra // Bioinformation;2011, Vol. 7 Issue 4, p180 

    Mitogen activated protein kinase (MAPK) cascades are universal signal transduction modules that play crucial role in plant growth and development as well as biotic and abiotic stress responses. 20 and 17 MAPKs have been characterized in Arabidopsis and rice respectively, which are used for...

  • Differential targeting of MAP kinases to the ETS-domain transcription factor Elk-1. Shen-Hsi Yang; Whitmarsh, Alan J.; Davis, Roger J.; Sharrocks, Andrew D. // EMBO Journal;3/15/98, Vol. 17 Issue 6, p1740 

    The activation of MAP kinase (MAPK) signal transduction pathways results in the phosphorylation of transcription factors by the terminal kinases in these cascades. Different pathways are activated by mitogenic and stress stimuli, which lead to the activation of distinct groups of target...

  • Direct control of the Forkhead transcription factor AFX by protein kinase B. Kops, Geert J.P.L.; De Ruiter, Nancy D.; De Vries-Smits, Alida M. M.; Powell, David R.; Bos, Johannes L.; Burgering, Boudewijn M. Th. // Nature;4/15/1999, Vol. 398 Issue 6728, p630 

    Presents research which showed that protein kinase B phosphorylates AFX, a human orthologue of Forkhead transcription factor daf-16. Role of protein kinase B in the regulation of insulin-responsive genes; Genetic analysis of Caenorhabditis elegans; Effects of the inhibition of endogenous PI(3)K...

  • Regulation of transcription factor function by phosphorylation. Whitmarsh, A. J.; Davis, R. J. // Cellular & Molecular Life Sciences;Aug2000, Vol. 57 Issue 8/9, p1172 

    Changes in protein phosphorylation represent a mechanism that is frequently employed by cells to regulate transcription factor activity. In response to alterations in the extracellular environment, signal transduction pathways target transcription factors, transcriptional coregulators and...

  • Nucleoside Diphosphate Kinase Is a Possible Component of the Ethylene Signal Transduction Pathway. Novikova, G. V.; Moshkov, I. E.; Smith, A. R.; Hall, M. A. // Biochemistry (00062979);Dec2003, Vol. 68 Issue 12, p1342 

    In etiolated seedlings of Pisum sativum and leaves of Arabidopsis thaliana, in vivo ethylene treatment resulted in an increase in in vitro phosphorylation of 17 kD (P. sativum) or 16 and 17 kD (A. thaliana) polypeptides. These polypeptides were identified as nucleoside diphosphate kinase (NDPK)...

  • Analysis of Phosphorylation of the Receptor-Like Protein Kinase HAESA during Arabidopsis Floral Abscission. Taylor, Isaiah; Wang, Ying; Seitz, Kati; Baer, John; Bennewitz, Stefan; Mooney, Brian P.; Walker, John C. // PLoS ONE;1/19/2016, Vol. 11 Issue 1, p1 

    Receptor-like protein kinases (RLKs) are the largest family of plant transmembrane signaling proteins. Here we present functional analysis of HAESA, an RLK that regulates floral organ abscission in Arabidopsis. Through in vitro and in vivo analysis of HAE phosphorylation, we provide evidence...

  • A Conserved PHD Finger Protein and Endogenous RNAi Modulate Insulin Signaling in Caenorhabditis elegans. Mansisidor, Andres R.; Cecere, Germano; Hoersch, Sebastian; Jensen, Morten B.; Kawli, Trupti; Kennedy, Lisa M.; Chavez, Violeta; Tan, Man-Wah; Lieb, Jason D.; Grishok, Alla // PLoS Genetics;Sep2011, Vol. 7 Issue 9, Special section p1 

    Insulin signaling has a profound effect on longevity and the oxidative stress resistance of animals. Inhibition of insulin signaling results in the activation of DAF-16/FOXO and SKN-1/Nrf transcription factors and increased animal fitness. By studying the biological functions of the endogenous...

  • OPN Induces FoxM1 Expression and Localization through ERK 1/2, AKT, and p38 Signaling Pathway in HEC-1A Cells. Yunpeng Xie; Yinghua Li; Ying Kong // International Journal of Molecular Sciences;2014, Vol. 15 Issue 12, p23346 

    Mammalian embryo implantation is an extremely complex process and requires endometrial receptivity. In order to establish this receptivity, sequential proliferation and differentiation during the menstrual cycle is necessary. Forkhead box M1 (FoxM1) is described as a major oncogenic...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics