Transcriptome Analysis of Kiwifruit in Response to Pseudomonas syringae pv. actinidiae Infection

International Journal of Molecular Sciences

卷:19

Ji-Yu Zhang¹  Tao Wang¹  Gang Wang¹  Zhan-Hui Jia¹  De-Lin Pan¹  Zhong-Ren Guo¹ 

[1] Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China;

关键词: kiwifruit;    bacterial canker;    Psa;    resistance;   

DOI  :  10.3390/ijms19020373

来源: DOAJ

【 摘 要 】

Kiwifruit bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa) has brought about a severe threat to the kiwifruit industry worldwide since its first outbreak in 2008. Studies on other pathovars of P. syringae are revealing the pathogenesis of these pathogens, but little about the mechanism of kiwifruit bacterial canker is known. In order to explore the species-specific interaction between Psa and kiwifruit, we analyzed the transcriptomic profile of kiwifruit infected by Psa. After 48 h, 8255 differentially expressed genes were identified, including those involved in metabolic process, secondary metabolites metabolism and plant response to stress. Genes related to biosynthesis of terpens were obviously regulated, indicating terpens may play roles in suppressing the growth of Psa. We identified 283 differentially expressed resistant genes, of which most U-box domain containing genes were obviously up regulated. Expression of genes involved in plant immunity was detected and some key genes showed differential expression. Our results suggest that Psa induced defense response of kiwifruit, including PAMP (pathogen/microbe-associated molecular patterns)-triggered immunity, effector-triggered immunity and hypersensitive response. Metabolic process was adjusted to adapt to these responses and production of secondary metabolites may be altered to suppress the growth of Psa.

【 授权许可】

Unknown