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1.中国中医科学院 中药资源中心 道地药材国家重点实验室培育基地,北京 100700;
2.中国中医科学院 博士后科研流动站,北京 100700
Published:05 November 2019,
Published Online:08 August 2019,
Received:17 July 2019,
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Ya-hui LIU, Jia-xing LI, Sheng WANG, et al. Cloning and Sequence Analysis of Pathogenesis Related Protein 1-like Gene from Sorbus aucuparia. [J]. Chinese Journal of Experimental Traditional Medical Formulae 25(21):118-123(2019)
Ya-hui LIU, Jia-xing LI, Sheng WANG, et al. Cloning and Sequence Analysis of Pathogenesis Related Protein 1-like Gene from Sorbus aucuparia. [J]. Chinese Journal of Experimental Traditional Medical Formulae 25(21):118-123(2019) DOI: 10.13422/j.cnki.syfjx.20192348.
目的:
2
探究欧洲花楸类病程相关蛋白1(SaPR1-like)在响应生物胁迫中的功能。
方法:
2
克隆得到了
SaPR
1-
like
基因全长序列,并对该序列进行生物信息学分析;通过实时荧光定量聚合酶链式反应(PCR)方法检测
SaPR
1-
like
在欧洲花楸悬浮细胞响应harpin蛋白胁迫后的表达特征。
结果:
2
克隆得到的
SaPR
1-
like
基因包含1个完整开放阅读框,编码161个氨基酸。该编码蛋白质亲水性强且稳定,具有跨膜结构和信号肽,属于分泌蛋白。氨基酸序列比对分析发现,SaPR1-like蛋白C端具有高度保守结构域[富含半胱氨酸的分泌蛋白、抗原5和致病性相关蛋白1肽段(CAPE)],推测其在欧洲花楸响应生物胁迫中发挥作用。harpin蛋白诱导欧洲花楸悬浮细胞24 h后,
SaPR
1-
like
基因表达量显著提高。
结论:
2
克隆得到了欧洲花楸
SaPR
1-
like
基因,并证明其在响应生物胁迫时表达和积累,可为进一步阐释欧洲花楸响应生物胁迫机制奠定基础和提供参考。
Objective:
2
To explore the functions of pathogenesis related protein 1-like (PR1-like) in suspension cell of
Sorbus aucuparia
(SaPR1-like) under biotic stress.
Method:
2
The full sequence of
SaPR
1-
like
gene was cloned and analyzed by multiple bioinformatic tools. The expression of
SaPR
1-
like
in the suspension cell of
S
.
aucuparia
in response to harpin protein stress was analyzed by real-time fluorescence quantitative polymerase chain reaction (PCR).
Result:
2
A
SaPR
1-
like
gene was identified and cloned
which contained a complete open reading frame and encoded 161 amino acids. The coding protein was hydrophilic and stable
had transmembrane structure and signal peptide
and belonged to secretory protein. Amino acid sequence alignment data indicated that the C-terminal of SaPR1-like contained a highly conserved domain [cysteine-rich secretory protein
antigen 5
and pathogenesis-related 1 peptides (CAPE)]
which could induce defense genes to produce immune responses against biotic stresses.
SaPR
1-
like
gene expression was significantly increased after harpin protein induced suspension cell of
S
.
aucuparia
for 24 h.
Conclusion:
2
A
SaPR
1-
like
gene derived from the
PR
1 family is found to induce significant responses to biotic elicitors in
S
.
aucuparia
. This study highlights a role for PR1 in immune signaling and suggests the potential application of PR1 in efforts to defeat biotic stress in plants.
病程相关蛋白1欧洲花楸悬浮细胞基因克隆生物胁迫序列分析荧光定量分析
pathogenesis-related protein 1Sorbus aucuparia; suspension cellgene cloningbiotic stresssequence analysisfluorescence quantitative analysis
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