A novel transcription factor JcNAC1 response to stress in new model woody plant Jatropha curcas.
Jatropha curcas, a biodiesel plant with a short life cycle, has great potentials to be a new model woody plant. In this study, we found a plant-specific transcription factor JcNAC1, an intriguing regulator modulating plant responses to abiotic stresses and pathogen infection. Expression of JcNAC1 was strongly increased when plants were treated with abscisic acid, salt and polyethylene glycol, and was decreased with salicylic acid, ethylene, and pathogens. Overexpressing JcNAC1 plants showed enhanced tolerance to drought and increased susceptibility to pathogens. Furthermore, over-expression of JcNAC1 in plants also resulted in the expression changes of some stress-related maker genes including curcin-L, which is a special stress-inducible ribosome-inactivating protein gene in J. curcas. These results indicate that JcNAC1 is responsible for stress responses in J. curcas.
Department of Plant Pathology and Microbiology, University of California, Riverside, CA, 92521, USA, qin_ever@hotmail.com.
Xiaobo
X
Qin
Xiaojiang
X
Zheng
Xiaoqi
X
Huang
Yifan
Y
Lii
Caixia
C
Shao
Ying
Y
Xu
Fang
F
Chen
D017360:Arabidopsis / Q000235:genetics / Q000382:microbiology / Q000502:physiology; D020171:Botrytis / Q000254:growth & development; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism; D055864:Droughts; D015870:Gene Expression; D018506:Gene Expression Regulation, Plant; D017930:Genes, Reporter; D031286:Jatropha / Q000235:genetics* / Q000382:microbiology / Q000502:physiology; D010935:Plant Diseases / Q000382:microbiology; D019441:Plant Epidermis / Q000235:genetics / Q000382:microbiology / Q000502:physiology; D010937:Plant Growth Regulators / Q000378:metabolism; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D018517:Plant Roots / Q000235:genetics / Q000382:microbiology / Q000502:physiology; D018547:Plant Stems / Q000235:genetics / Q000382:microbiology / Q000502:physiology; D030821:Plants, Genetically Modified; D044224:Pseudomonas syringae / Q000254:growth & development; D017382:Reactive Oxygen Species / Q000032:analysis / Q000378:metabolism; D011993:Recombinant Fusion Proteins; D036226:Seedlings / Q000235:genetics / Q000382:microbiology / Q000502:physiology; D012965:Sodium Chloride / Q000494:pharmacology; D013312:Stress, Physiological; D014157:Transcription Factors / Q000235:genetics* / Q000378:metabolism; D015533:Transcriptional Activation
D004268:DNA-Binding Proteins; D010937:Plant Growth Regulators; D010940:Plant Proteins; D017382:Reactive Oxygen Species; D011993:Recombinant Fusion Proteins; D014157:Transcription Factors; D012965:Sodium Chloride