Article(id=1305139325029605577, tenantId=1146029695717560320, journalId=1303687221787852879, issueId=1305139324555649224, articleNumber=null, orderNo=null, doi=10.7606/j.issn.1009-1041.2026.03.02, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1742572800000, receivedDateStr=2025-03-22, revisedDate=1746806400000, revisedDateStr=2025-05-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1789099063402, onlineDateStr=2026-09-11, pubDate=1773504000000, pubDateStr=2026-03-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789099063402, onlineIssueDateStr=2026-09-11, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789099063402, creator=13701087609, updateTime=1789099063402, updator=13701087609, issue=Issue{id=1305139324555649224, tenantId=1146029695717560320, journalId=1303687221787852879, year='2026', volume='46', issue='3', pageStart='F2', pageEnd='424', issueExtLink='null', onlineDate='null', pubDate='1773504000000', pubDateStr='2026-03-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789099063289, creator='13701087609', updateTime=1789103147683, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1305156455804465602, tenantId=1146029695717560320, journalId=1303687221787852879, issueId=1305139324555649224, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1305156455804465603, tenantId=1146029695717560320, journalId=1303687221787852879, issueId=1305139324555649224, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=293, endPage=303, ext={EN=ArticleExt(id=1305139325222543562, articleId=1305139325029605577, tenantId=1146029695717560320, journalId=1303687221787852879, language=EN, title=Cloning and Analysis of the Cold Resistance Function of the TaIPT9A Gene in Winter Wheat(Triticum aestivum L.), columnId=1305133119129023428, journalTitle=Journal of Triticeae Crops, columnName=Genetics & Breeding, runingTitle=null, highlight=null, articleAbstract=

Cytokinins (CKs) play a pivotal regulatory role in plant growth, development and stress responses, with isopentenyltransferases (IPTs) serving as critical rate-limiting enzymes in CKs biosynthesis. To investigate the role of wheat IPT genes in plant responses to low-temperature stress, this study cloned the TaIPT9A gene (TraesCS7A02G560300) from the tiller nodes of the cold-resistant winter wheat cultivar Dongnong Dongmai 1(Dn1). Bioinformatics analysis, low-temperature-induced promoter activity assays, and functional characterization were conducted. The TaIPT9A gene was overexpressed in the cold-sensitive rice cultivar Longjing 11 via Agrobacterium-mediated transformation to preliminarily analyze its cold resistance function. The results showed that TaIPT9A has a coding sequence (CDS) of 1 362 bp, encoding 453 amino acids. Phylogenetic analysis revealed that wheat IPT proteins are most closely related to those of Aegilops tauschii. The TaIPT9A promoter contains cis-acting elements responsive to low temperature, light, ABA and MeJA, and its activity was induced by cold stress. Compared to wild-type rice, TaIPT9A-overexpressing plants exhibited greener leaves and better growth under low-temperature stress. Additionally, these plants showed significantly increased proline (Pro) content, catalase (CAT) activity, and upregulated expression of antioxidant enzyme-related genes (OsCATC, OsSOD1, OsSOD2 and OsAPX1) as well as cold resistance-related genes (OsCATC and OsDREB1A). These findings suggest that TaIPT9A enhances cold tolerance in rice seedlings.

, authors=Huishan SONG, Chen SUN, Yayun LIU, Qingchuan SUN, Da ZHANG, authorsList=Huishan SONG, Chen SUN, Yayun LIU, Qingchuan SUN, Da ZHANG, authorCompany=null, correspAuthors=Da ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1305139325440647371, articleId=1305139325029605577, tenantId=1146029695717560320, journalId=1303687221787852879, language=CN, title=冬小麦TaIPT9A基因的克隆及抗寒功能分析, columnId=1305133119284212678, journalTitle=麦类作物学报, columnName=遗传育种, runingTitle=null, highlight=null, articleAbstract=

细胞分裂素(CKs)在植物生长发育和逆境应答中发挥重要的调控作用,异戊烯基转移酶(IPTs)是CKs生物合成的重要限速酶。为了探究小麦IPT编码基因在植物低温胁迫应答中的作用,从强抗寒冬小麦品种东农冬麦1号(Dn1)分蘖节中克隆了TaIPT9A基因(TraesCS7A02G560300),对其进行生物信息学分析、低温下启动子活性分析,并采用农杆菌介导法将其转入水稻冷敏感品种龙粳11中,对创建的含有TaIPT9A的株系的抗寒功能进行初步分析。结果表明,TaIPT9A基因的CDS为1 362 bp,编码453个氨基酸;小麦与粗山羊草IPT蛋白亲缘关系最近;TaIPT9A启动子区含有响应低温、光、ABA、MeJA等顺式作用元件,TaIPT9A启动子活性受低温诱导。与野生型相比,过表达TaIPT9A基因水稻的叶片在低温胁迫下更翠绿、生长状态更好;叶片的脯氨酸(Pro)含量、过氧化氢酶(CAT)活性、抗氧化酶相关基因(OsCATCOsSOD1OsSOD2OsAPX1)及抗寒相关基因(OsCATCOsDREB1A)的表达量显著提高。这说明TaIPT9A基因增强了水稻幼苗的抗寒性。

, authors=宋慧珊, 孙晨, 刘亚赟, 孙青川, 张达, authorsList=宋慧珊, 孙晨, 刘亚赟, 孙青川, 张达, authorCompany=null, correspAuthors=张达, authorNote=

E-mail: (宋慧珊)

, correspAuthorsNote=
E-mail: (张达)
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冬小麦TaIPT9A基因的克隆及抗寒功能分析
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宋慧珊 , 孙晨 , 刘亚赟 , 孙青川 , 张达
麦类作物学报 | 遗传育种 2026,46(3): 293-303
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麦类作物学报 |遗传育种 2026 , 46 (3) : 293 -303
冬小麦TaIPT9A基因的克隆及抗寒功能分析
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宋慧珊 , 孙晨, 刘亚赟, 孙青川, 张达
作者信息
  • 东北农业大学生命科学学院,黑龙江 哈尔滨 150030
通讯作者:
E-mail: (张达)
作者简介:

E-mail: (宋慧珊)

Cloning and Analysis of the Cold Resistance Function of the TaIPT9A Gene in Winter Wheat(Triticum aestivum L.)
Huishan SONG , Chen SUN, Yayun LIU, Qingchuan SUN, Da ZHANG
Affiliations
  • College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
出版时间: 2026-03-15 doi: 10.7606/j.issn.1009-1041.2026.03.02
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细胞分裂素(CKs)在植物生长发育和逆境应答中发挥重要的调控作用,异戊烯基转移酶(IPTs)是CKs生物合成的重要限速酶。为了探究小麦IPT编码基因在植物低温胁迫应答中的作用,从强抗寒冬小麦品种东农冬麦1号(Dn1)分蘖节中克隆了TaIPT9A基因(TraesCS7A02G560300),对其进行生物信息学分析、低温下启动子活性分析,并采用农杆菌介导法将其转入水稻冷敏感品种龙粳11中,对创建的含有TaIPT9A的株系的抗寒功能进行初步分析。结果表明,TaIPT9A基因的CDS为1 362 bp,编码453个氨基酸;小麦与粗山羊草IPT蛋白亲缘关系最近;TaIPT9A启动子区含有响应低温、光、ABA、MeJA等顺式作用元件,TaIPT9A启动子活性受低温诱导。与野生型相比,过表达TaIPT9A基因水稻的叶片在低温胁迫下更翠绿、生长状态更好;叶片的脯氨酸(Pro)含量、过氧化氢酶(CAT)活性、抗氧化酶相关基因(OsCATCOsSOD1OsSOD2OsAPX1)及抗寒相关基因(OsCATCOsDREB1A)的表达量显著提高。这说明TaIPT9A基因增强了水稻幼苗的抗寒性。

冬小麦  /  TaIPT9A  /  基因克隆  /  抗寒

Cytokinins (CKs) play a pivotal regulatory role in plant growth, development and stress responses, with isopentenyltransferases (IPTs) serving as critical rate-limiting enzymes in CKs biosynthesis. To investigate the role of wheat IPT genes in plant responses to low-temperature stress, this study cloned the TaIPT9A gene (TraesCS7A02G560300) from the tiller nodes of the cold-resistant winter wheat cultivar Dongnong Dongmai 1(Dn1). Bioinformatics analysis, low-temperature-induced promoter activity assays, and functional characterization were conducted. The TaIPT9A gene was overexpressed in the cold-sensitive rice cultivar Longjing 11 via Agrobacterium-mediated transformation to preliminarily analyze its cold resistance function. The results showed that TaIPT9A has a coding sequence (CDS) of 1 362 bp, encoding 453 amino acids. Phylogenetic analysis revealed that wheat IPT proteins are most closely related to those of Aegilops tauschii. The TaIPT9A promoter contains cis-acting elements responsive to low temperature, light, ABA and MeJA, and its activity was induced by cold stress. Compared to wild-type rice, TaIPT9A-overexpressing plants exhibited greener leaves and better growth under low-temperature stress. Additionally, these plants showed significantly increased proline (Pro) content, catalase (CAT) activity, and upregulated expression of antioxidant enzyme-related genes (OsCATC, OsSOD1, OsSOD2 and OsAPX1) as well as cold resistance-related genes (OsCATC and OsDREB1A). These findings suggest that TaIPT9A enhances cold tolerance in rice seedlings.

Winter wheat  /  TaIPT9A  /  Gene cloning  /  Cold resistance
宋慧珊, 孙晨, 刘亚赟, 孙青川, 张达. 冬小麦TaIPT9A基因的克隆及抗寒功能分析. 麦类作物学报, 2026 , 46 (3) : 293 -303 . DOI: 10.7606/j.issn.1009-1041.2026.03.02
Huishan SONG, Chen SUN, Yayun LIU, Qingchuan SUN, Da ZHANG. Cloning and Analysis of the Cold Resistance Function of the TaIPT9A Gene in Winter Wheat(Triticum aestivum L.)[J]. Journal of Triticeae Crops, 2026 , 46 (3) : 293 -303 . DOI: 10.7606/j.issn.1009-1041.2026.03.02
  • 国家自然科学基金项目(31701348)
  • 黑龙江省科学基金项目(LH2021C022)
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doi: 10.7606/j.issn.1009-1041.2026.03.02
  • 接收时间:2025-03-22
  • 首发时间:2026-09-11
  • 出版时间:2026-03-15
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  • 收稿日期:2025-03-22
  • 修回日期:2025-05-10
基金
国家自然科学基金项目(31701348)
黑龙江省科学基金项目(LH2021C022)
作者信息
    东北农业大学生命科学学院,黑龙江 哈尔滨 150030

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E-mail: (张达)
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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