文献类型： 外文期刊

作者： Zeng Xingquan ¹ ; Wang Changyou ¹ ; Ali, M. ¹ ; Zhang Hong ¹ ; Liu Xinlun ¹ ; Li Weiyan ¹ ; Ji Wanquan ¹ ;

作者机构： 1.NW A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China

2.Tibet Acad Agr & Anim Husb Sci, Lhasa 850002, Tibet, Peoples R China

3.Cotton Sect Agr Res Inst, Tandojam, Pakistan

期刊名称：PAKISTAN JOURNAL OF BOTANY （ 影响因子：0.972； 五年影响因子：0.988 ）

ISSN： 0556-3321

年卷期： 2010 年 42 卷 6 期

页码：

收录情况： SCI

摘要： Stripe rust caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most devastating diseases in common wheat (Triticum aestivum L.) worldwide. Total RNA for SSH analyses was extracted from wheat germplasm NR1121 infected by Chinese Pst race CYR32. To identify differentially expressed genes in response to Pst infection in wheat, all 550 Positive clones from the library were subjected to sequencing, while 162 expressed sequence tags (ESTs) were to clustering, BLAST alignment, functional annotation and classification into different categories. The expression of eight genes was detected by semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) and real-time polymerase chain reaction (real time-PCR). Expression of six genes (acylcoenzyme A synthetase, glutathione S transferase, Lipid transfer protein, ubiquitin protein ligase 2, cytochrome P450, and serine/threonine protein kinase SNT7) transcripts were induced and up-regulated to their highest levels at 24 hours after Pst infection, while that of two genes(serine Hydroxy-methyl transferase and S-adenosylmethionine decarboxylase) were significantly expressed at 48 hours (hpi). These genes were highly induced at an early stage of infection, suggesting they are transcriptionally activated for the host defense response.