华北农学报 ›› 2018, Vol. 33 ›› Issue (6): 56-63. doi: 10.7668/hbnxb.2018.06.008

所属专题: 黄瓜 生物技术

• 论文 • 上一篇    下一篇

水杨酸诱导黄瓜PCD的鉴定及相关基因的表达分析

陈冲1, 刘双1, 王丹丹1, 池春玉1,2, 朱宏1,2, 金晓霞1,2, 丁国华1,2   

  1. 1. 哈尔滨师范大学 生命科学与技术学院, 黑龙江 哈尔滨 150025;
    2. 植物生物学黑龙江省高校重点实验室, 黑龙江 哈尔滨 150025
  • 收稿日期:2018-07-11 出版日期:2018-12-28
  • 通讯作者: 丁国华(1963-),男,山东梁山人,教授,博士,主要从事植物抗性生理与分子机制研究。
  • 作者简介:陈冲(1993-),女,黑龙江嫩江人,在读硕士,主要从事黄瓜抗病机制研究。
  • 基金资助:
    国家自然科学基金项目(31770350);植物生物学黑龙江省高校重点实验室(哈尔滨师范大学)开放课题(ZK201201)

Identification of PCD Induced by Salicylic Acid and Expression Analysis of Genes Related with the PCD in Cucumber

CHEN Chong1, LIU Shuang1, WANG Dandan1, CHI Chunyu1,2, ZHU Hong1,2, JIN Xiaoxia1,2, DING Guohua1,2   

  1. 1. Life Science and Technology College, Harbin Normal University, Harbin 150025, China;
    2. Key Laboratory of Plant Biology in Colleges of Heilongjiang Province, Harbin 150025, China
  • Received:2018-07-11 Published:2018-12-28

摘要: 为揭示叶绿体在水杨酸(SA)诱导黄瓜PCD过程中的作用,选择黄瓜幼苗四叶期时,叶片滴加10 mmol/L SA,在滴加SA的位置取材,首先进行ROS原位检测、Trypan blue染色、PI和FDA染色、TUNEL检测,验证SA可诱导黄瓜PCD过程;继而根据高通量测序结果,从1 759个高通量测序得到的差异表达基因中,筛选出15个注释含chloroplast的基因,RT-PCR验证这些基因在SA诱导的黄瓜叶片PCD中有表达,初步认定这些基因参与了SA诱导的黄瓜P CD过程。对筛选得到的基因进行qRT-PCR表达分析,这15个基因在SA诱导的黄瓜PCD中起正调控或负调控的作用,上调表达的5个基因分别是:类囊体加工肽酶1基因、6-磷酸葡萄糖酸脱氢酶基因、果糖1,6-二磷酸醛缩酶3基因、α-葡聚糖-水二激酶1基因和丙二烯氧化物环化酶4基因;下调表达的10个基因分别是:甜菜碱脱氢酶1基因、钙敏感受体基因、脱镁叶绿酸a单加氧酶基因、叶绿素b还原酶1基因、σ因子结合蛋白1基因、NADPH-原叶绿酸酯还原酶基因、2-琥珀苯甲酸-辅酶A连接酶基因、ATP依赖的锌金属蛋白酶基因、烟酰胺腺嘌呤二核苷酸转运子基因和胱硫醚β合成酶(CBS)蛋白基因。为进一步揭示叶绿体在SA诱导黄瓜PCD中的作用奠定了基础。

关键词: 黄瓜, 水杨酸, 细胞程序性死亡, 基因表达

Abstract: To reveal the role of chloroplast in the PCD of cucumber induced by salicylic acid (SA),10 mmol/L salicylic acid was added to the leaves of cucumber seedlings at the four-leaf period,and the samples were collected at the location where SA was added. ROS in situ detection,Trypan blue staining,PI and FDA staining,and TUNEL detection were performed. These results showed that SA could induce PCD process in cucumber. According to the results of high-throughput sequencing,15 genes annotated with chloroplast were screened out among 1 759 differentially expressed genes. These genes were expressed in cucumber leaves treated with SA was confirmed by RT-PCR. It was preliminarily identified that these genes were involved in the PCD process induced by SA in cucumber. According to the expression of qRT-PCR,the 15 genes played a role of positive regulation or negative regulation in PCD induced SA in cucumber,upon regulating characteristics five kinds of genes were raised:Probable thylakoidal processing peptidase 1 gene, 6-phosphogluconate dehydrogenase gene, Probable fructose-bisphosphate aldolase 3 gene, Alpha-glucan water dikinase 1 gene and Allene oxide cyclase 4 gene, down-regulated expression of 10 genes were:Betaine aldehyde dehydrogenase 1 gene, Calcium sensing receptor gene, Pheophorbide a oxygenase gene, Probable chlorophyll(ide) b reductase1 gene, Sigma factor binding protein 1 gene, NADPH-protochlorophyllide oxidoreductase gene, 2-succinylbenzoate-CoA ligase gene, ATP-dependent zinc metallopro-tease FtsH1 gene, Nicotinamide adenine dinucleotide transporter 1 gene and CBS domain-containing protein1 gene. It lays a foundation for further revealing the role of chloroplast in cucumber PCD induced by SA.

Key words: Cucumber, Salicylic acid, Programmed cell death, Gene expression

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引用本文

陈冲, 刘双, 王丹丹, 池春玉, 朱宏, 金晓霞, 丁国华. 水杨酸诱导黄瓜PCD的鉴定及相关基因的表达分析[J]. 华北农学报, 2018, 33(6): 56-63. doi: 10.7668/hbnxb.2018.06.008.

CHEN Chong, LIU Shuang, WANG Dandan, CHI Chunyu, ZHU Hong, JIN Xiaoxia, DING Guohua. Identification of PCD Induced by Salicylic Acid and Expression Analysis of Genes Related with the PCD in Cucumber[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2018, 33(6): 56-63. doi: 10.7668/hbnxb.2018.06.008.

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