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Publication Type J
Authors Yamanaka, T., M. Miyama and Y. Tada
Title Transcriptome Profiling of the Mangrove Plant Bruguiera gymnorhiza and Identification of Salt Tolerance Genes by Agrobacterium Functional Screening
Source Bioscience Biotechnology and Biochemistry
Author Keywords Agrobacterium functional screening Bruguiera gymnorhiza microarray mangrove salt tolerance high-salinity stress arabidopsis-thaliana osmotic-stress protein gene thellungiella-halophila expression profiles burma mangrove ankyrin repeat drought microarray
Abstract To identify key genes in the regulation of salt tolerance in the mangrove plant Bruguiera gymnorhiza, transcriptome profiling in the lateral and main roots under conditions of salt stress was performed. Statistical analysis revealed that 175 and 40 3 of 11,997 genes shoewd significantly increased high expression in the lateral and main roots respectively. One hundred and sixty genes were up-regulated in both types of roots in the early time period, 1 to 12h after salt treatment. Expression vectors for 28 selected salt responsive genes were constructed and transformed in Agrobacterium tumefaciens, and then screened for salt tolerance. A. tumefaciens transformed with genes for lipid transfer, zinc finger, and ankyrin repeat proteins showed enhanced salt tolerance. Transgenic Arabidopsis plants expressing these three genes also exhibited increased tolerance to NaCl. These results indicate that Agrobacterium functional screening is an effective supplemental method of pre-screening genes involved in abiotic stress tolerance.
Author Address [Miyama, M; Tada, Y] Tokyo Univ Technol, Sch Biosci & Biotechnol, Tokyo 1920982, Japan. [Yamanaka, T] Tokyo Univ Technol, Katayanagi Inst, Tokyo 1920982, Japan. Tada, Y (reprint author), Tokyo Univ Technol, Sch Biosci & Biotechnol, 1404-1 Katakura, Tokyo 1920982, Japan tadayui@bs.teu.ac.jp
ISSN 0916-8451
ISBN 0916-8451
29-Character Source Abbreviation Biosci. Biotechnol. Biochem.
Publication Date Feb
Year Published 2009
Volume 73
Issue 2
Beginning Page 304-310
Digital Object Identifier (DOI) 10.1271/bbb.80513
Unique Article Identifier WOS:000263864500009
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