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	OsLSD1, a rice zinc finger protein, regulates programmed cell death and callus differentiation
	Wang, LJ ; Pei, ZY ; Tian, YC ; He, CZ
	2010-05-11 ; 2010-05-11
关键词	TRANSGENIC TOBACCO PLANTS LESION-MIMIC MUTANTS F-SP LYCOPERSICI BROAD-SPECTRUM RESISTANCE LONGEVITY-ASSURANCE GENE DISEASE RESISTANCE DEFENSE RESPONSES ARABIDOPSIS-THALIANA TRANSCRIPTION FACTOR PATHOGEN RESISTANCE Biochemistry & Molecular Biology Biotechnology & Applied Microbiology Plant Sciences
中文摘要	The Arabidopsis LSD1 and LOL1 proteins both contain three conserved zinc finger domains and have antagonistic effects on plant programmed cell death (PCD). In this study, a rice (Oryza sativa) functional homolog of LSD1, designated OsLSD1, was identified. The expression of OsLSD1 was light-induced or dark-suppressed. Overexpression of OsLSD1 driven by the cauliflower mosaic virus 35S promoter accelerated callus differentiation in transformed rice tissues and increased chlorophyll b content in transgenic rice plants. Antisense transgenic rice plants exhibited lesion mimic phenotype, increased expression of PR-1 mRNA, and an accelerated hypersensitive response when inoculated with avirulent isolates of blast fungus. Both sense and antisense transgenic rice plants conferred significantly enhanced resistance against a virulent isolate of blast fungus. Moreover, ectopic overexpression of OsLSD1 in transgenic tobacco (Nicotiana tabacum) enhanced the tolerance to fumonisins B1 (FBI), a PCD-eliciting toxin. OsLSD1 green fluorescent protein fusion protein was located in the nucleus of tobacco cells. Our results suggest that OsLSD1 plays a negative role in regulating plant PCD, whereas it plays a positive role in callus differentiation.
语种	英语 ; 英语
出版者	AMER PHYTOPATHOLOGICAL SOC ; ST PAUL ; 3340 PILOT KNOB ROAD, ST PAUL, MN 55121 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/26384]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, LJ,Pei, ZY,Tian, YC,et al. OsLSD1, a rice zinc finger protein, regulates programmed cell death and callus differentiation[J],2010, 2010.
APA	Wang, LJ,Pei, ZY,Tian, YC,&He, CZ.(2010).OsLSD1, a rice zinc finger protein, regulates programmed cell death and callus differentiation..
MLA	Wang, LJ,et al."OsLSD1, a rice zinc finger protein, regulates programmed cell death and callus differentiation".(2010).

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