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Article(id=1307407843175453029, tenantId=1146029695717560320, journalId=1306273872116547672, issueId=1307407819406340606, articleNumber=null, orderNo=null, doi=10.16819/j.1001-7216.2026.250411, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1745424000000, receivedDateStr=2025-04-24, revisedDate=1748880000000, revisedDateStr=2025-06-03, acceptedDate=null, acceptedDateStr=null, onlineDate=1789639920276, onlineDateStr=2026-09-17, pubDate=1773072000000, pubDateStr=2026-03-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789639920276, onlineIssueDateStr=2026-09-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789639920276, creator=13701087609, updateTime=1789639920276, updator=13701087609, issue=Issue{id=1307407819406340606, tenantId=1146029695717560320, journalId=1306273872116547672, year='2026', volume='40', issue='2', pageStart='145', pageEnd='280', issueExtLink='null', onlineDate='null', pubDate='1773072000000', pubDateStr='2026-03-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789639914608, creator='13701087609', updateTime=1789640017061, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1307408249192473376, tenantId=1146029695717560320, journalId=1306273872116547672, issueId=1307407819406340606, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1307408249196667681, tenantId=1146029695717560320, journalId=1306273872116547672, issueId=1307407819406340606, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=196, endPage=209, ext={EN=ArticleExt(id=1307407843418722662, articleId=1307407843175453029, tenantId=1146029695717560320, journalId=1306273872116547672, language=EN, title=AP2 Transcription Factor OsERF34 Positively Regulates Seed Dormancy in Rice, columnId=1307407385149071973, journalTitle=Chinese Journal of Rice Science, columnName=Research Papers, runingTitle=null, highlight=null, articleAbstract=
【Objective】

Weakened seed dormancy in rice leads to pre-harvest sprouting (PHS), which severely impacts grain yield and quality, making it crucial to investigate the genetic regulatory mechanisms underlying rice seed dormancy.

【Method】

We generated loss-of-function mutants of the AP2/ERF transcription factor OsERF34 in the Zhonghua 11 (ZH11) background using CRISPR/Cas9 technology.

【Result】

The oserf34 mutants exhibited severe pre-harvest sprouting and significantly reduced seed dormancy. Transcriptome analysis revealed that differentially expressed genes (DEGs) between oserf34 and the wild type were significantly enriched in plant hormone signal transduction, ROS metabolism, and glycolytic pathways, suggesting that OsERF34 may maintain seed dormancy by regulating hormone biosynthesis/metabolism, redox homeostasis, and carbohydrate metabolism. Further investigation demonstrated that the oserf34 mutant seeds showed substantially increased levels of auxin (IAA), gibberellins (GA19/GA20), and salicylic acid (SA), along with decreased proline content and elevated hydrogen peroxide (H2O2) and superoxide anion level. Meanwhile, the activities of antioxidant enzymes (SOD, POD, CAT) were upregulated. Additionally, the mutant endosperm exhibited significantly elevated soluble sugar content and α-amylase activity, providing an energy foundation for dormancy release. This study demonstrates that OsERF34 positively regulates rice seed dormancy through its involvement in hormone biosynthesis/metabolism, redox homeostasis regulation, and carbohydrate metabolism.

【Conclusion】

These findings provide novel theoretical insights and genetic resources for deciphering the molecular mechanisms of seed dormancy and germination, as well as for developing PHS-resistant rice varieties.

, authors=Zhimin DU1, 2, Yinan JIA1, Yingqing DUAN2, Ni CAO2, Liuyang MA2, Xinli DONG2, Hai XU1, Guiai JIAO2, Shaoqing TANG2, Peisong HU2, authorsList=Zhimin DU, Yinan JIA, Yingqing DUAN, Ni CAO, Liuyang MA, Xinli DONG, Hai XU, Guiai JIAO, Shaoqing TANG, Peisong HU, authorCompany=null, correspAuthors=Shaoqing TANG, Peisong HU, authorNote=

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These authors contributed equally to the work

, correspAuthorsNote=

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email:
, 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=1307407843657797991, articleId=1307407843175453029, tenantId=1146029695717560320, journalId=1306273872116547672, language=CN, title=AP2转录因子OsERF34正向调控水稻种子休眠, columnId=1307407385430090343, journalTitle=中国水稻科学, columnName=研究报告, runingTitle=null, highlight=null, articleAbstract=
【目的】

水稻种子休眠性变弱会导致收获前穗发芽（PHS），严重影响水稻的产量与品质，因而研究水稻种子休眠性的遗传调控机制至关重要。

【方法】

以中花11为背景通过CRISPR/Cas9技术创制水稻AP2/ERF转录因子OsERF34功能缺失突变体，结合转录组、激素代谢组及生理生化分析，解析其调控种子休眠的分子途径。

【结果】

发现oserf34突变体种子穗发芽严重，休眠性极显著减弱。转录组分析显示，oserf34与野生型之间差异表达基因（DEGs）显著富集于植物激素信号转导、ROS代谢及糖酵解通路，表明OsERF34可能通过调控激素合成与代谢、氧化还原平衡及糖代谢，维持种子休眠状态。进一步研究发现，oserf34突变体种子中生长素（IAA）、赤霉素（GA19/GA20）及水杨酸（SA）含量显著升高，而ROS清除剂脯氨酸含量降低，过氧化氢（H2O2）和超氧阴离子积累加剧，同时抗氧化酶（SOD、POD、CAT）活性上调。此外，突变体胚乳中可溶性糖含量和α-淀粉酶活性显著升高，为打破休眠提供能量基础。

【结论】

OsERF34通过参与激素合成与代谢、氧化还原平衡及糖代谢正向调控水稻种子休眠，为解析水稻种子休眠与萌发分子机制及创制抗穗发芽水稻新品种提供了新的理论依据与遗传资源。

, authors=杜志敏1, 2, 贾一楠1, 段影青2, 曹妮2, 马刘洋2, 董欣丽2, 徐海1, 焦桂爱2, 唐绍清2, *, *, 胡培松2, *, *, authorsList=杜志敏, 贾一楠, 段影青, 曹妮, 马刘洋, 董欣丽, 徐海, 焦桂爱, 唐绍清, 胡培松, authorCompany=null, correspAuthors=唐绍清, 胡培松, authorNote=

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共同第一作者

, correspAuthorsNote=

*

email:
, copyrightStatement=作者同意论文在本刊发表,论文的数字化复制权、发行权、汇编权及信息网络传播权即转让本刊编辑部。论文的著作权转让费在本刊稿酬中一次性支付。, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=f9KaF1F/SABNt1A40WWq0Q==, magXml=FgvEl2rRRVRK8hogqMtK7w==, pdfUrl=null, pdf=HUSxp7QDfbtu4Jn2MzwG4A==, pdfFileSize=2618320, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=Mu48EF8C+JkK01O0TUyolQ==, mapNumber=null, fund=null)}, authors=[Author(id=1307407844177891695, tenantId=1146029695717560320, journalId=1306273872116547672, articleId=1307407843175453029, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1307407844253389170, tenantId=1146029695717560320, journalId=1306273872116547672, articleId=1307407843175453029, authorId=1307407844177891695, language=EN, stringName=Zhimin DU, firstName=Zhimin, middleName=null, lastName=DU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, 2, address=1Shenyang Agricultural University, Shenyang 110011, China
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AP2转录因子OsERF34正向调控水稻种子休眠
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杜志敏 1, 2 , 贾一楠 1 , 段影青 2 , 曹妮 2 , 马刘洋 2 , 董欣丽 2 , 徐海 1 , 焦桂爱 2 , 唐绍清 2, *, * , 胡培松 2, *, *
中国水稻科学 | 研究报告 2026,40(2): 196-209
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中国水稻科学 |研究报告 2026 , 40 (2) : 196 -209
AP2转录因子OsERF34正向调控水稻种子休眠
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杜志敏1, 2, 贾一楠1, 段影青2, 曹妮2, 马刘洋2, 董欣丽2, 徐海1, 焦桂爱2, 唐绍清2, *, * , 胡培松2, *, *
作者信息
  • 1沈阳农业大学，沈阳 110011
  • 2中国水稻研究所，杭州 311401
通讯作者:
作者简介:

#

共同第一作者

AP2 Transcription Factor OsERF34 Positively Regulates Seed Dormancy in Rice
Zhimin DU1, 2, Yinan JIA1, Yingqing DUAN2, Ni CAO2, Liuyang MA2, Xinli DONG2, Hai XU1, Guiai JIAO2, Shaoqing TANG2 , Peisong HU2
Affiliations
  • 1Shenyang Agricultural University, Shenyang 110011, China
  • 2China National Rice Research Institute, Hangzhou 311401, China
    • Corresponding Author:

    *

    email:
出版时间: 2026-03-10 doi: 10.16819/j.1001-7216.2026.250411
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摘要
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【目的】

水稻种子休眠性变弱会导致收获前穗发芽（PHS），严重影响水稻的产量与品质，因而研究水稻种子休眠性的遗传调控机制至关重要。

【方法】

以中花11为背景通过CRISPR/Cas9技术创制水稻AP2/ERF转录因子OsERF34功能缺失突变体，结合转录组、激素代谢组及生理生化分析，解析其调控种子休眠的分子途径。

【结果】

发现oserf34突变体种子穗发芽严重，休眠性极显著减弱。转录组分析显示，oserf34与野生型之间差异表达基因（DEGs）显著富集于植物激素信号转导、ROS代谢及糖酵解通路，表明OsERF34可能通过调控激素合成与代谢、氧化还原平衡及糖代谢，维持种子休眠状态。进一步研究发现，oserf34突变体种子中生长素（IAA）、赤霉素（GA19/GA20）及水杨酸（SA）含量显著升高，而ROS清除剂脯氨酸含量降低，过氧化氢（H2O2）和超氧阴离子积累加剧，同时抗氧化酶（SOD、POD、CAT）活性上调。此外，突变体胚乳中可溶性糖含量和α-淀粉酶活性显著升高，为打破休眠提供能量基础。

【结论】

OsERF34通过参与激素合成与代谢、氧化还原平衡及糖代谢正向调控水稻种子休眠，为解析水稻种子休眠与萌发分子机制及创制抗穗发芽水稻新品种提供了新的理论依据与遗传资源。

穗发芽  /  休眠  /  激素代谢组  /  活性氧  /  可溶性糖  /  α-淀粉酶
【Objective】

Weakened seed dormancy in rice leads to pre-harvest sprouting (PHS), which severely impacts grain yield and quality, making it crucial to investigate the genetic regulatory mechanisms underlying rice seed dormancy.

【Method】

We generated loss-of-function mutants of the AP2/ERF transcription factor OsERF34 in the Zhonghua 11 (ZH11) background using CRISPR/Cas9 technology.

【Result】

The oserf34 mutants exhibited severe pre-harvest sprouting and significantly reduced seed dormancy. Transcriptome analysis revealed that differentially expressed genes (DEGs) between oserf34 and the wild type were significantly enriched in plant hormone signal transduction, ROS metabolism, and glycolytic pathways, suggesting that OsERF34 may maintain seed dormancy by regulating hormone biosynthesis/metabolism, redox homeostasis, and carbohydrate metabolism. Further investigation demonstrated that the oserf34 mutant seeds showed substantially increased levels of auxin (IAA), gibberellins (GA19/GA20), and salicylic acid (SA), along with decreased proline content and elevated hydrogen peroxide (H2O2) and superoxide anion level. Meanwhile, the activities of antioxidant enzymes (SOD, POD, CAT) were upregulated. Additionally, the mutant endosperm exhibited significantly elevated soluble sugar content and α-amylase activity, providing an energy foundation for dormancy release. This study demonstrates that OsERF34 positively regulates rice seed dormancy through its involvement in hormone biosynthesis/metabolism, redox homeostasis regulation, and carbohydrate metabolism.

【Conclusion】

These findings provide novel theoretical insights and genetic resources for deciphering the molecular mechanisms of seed dormancy and germination, as well as for developing PHS-resistant rice varieties.

pre-harvest sprouting  /  dormancy  /  hormone metabolome  /  reactive oxygen species  /  soluble sugars  /  α-amylase
杜志敏, 贾一楠, 段影青, 曹妮, 马刘洋, 董欣丽, 徐海, 焦桂爱, 唐绍清, 胡培松. AP2转录因子OsERF34正向调控水稻种子休眠. 中国水稻科学, 2026 , 40 (2) : 196 -209 . DOI: 10.16819/j.1001-7216.2026.250411
Zhimin DU, Yinan JIA, Yingqing DUAN, Ni CAO, Liuyang MA, Xinli DONG, Hai XU, Guiai JIAO, Shaoqing TANG, Peisong HU. AP2 Transcription Factor OsERF34 Positively Regulates Seed Dormancy in Rice[J]. Chinese Journal of Rice Science, 2026 , 40 (2) : 196 -209 . DOI: 10.16819/j.1001-7216.2026.250411
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  • 国家自然科学基金面上项的(32172080)
  • 国家自然科学基金基础科学中心项的(32188102)
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doi: 10.16819/j.1001-7216.2026.250411
  • 接收时间：2025-04-24
  • 首发时间：2026-09-17
  • 出版时间：2026-03-10
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  • 收稿日期：2025-04-24
  • 修回日期：2025-06-03
基金
国家自然科学基金面上项的(32172080)
国家自然科学基金基础科学中心项的(32188102)
作者信息
    1沈阳农业大学，沈阳 110011
    2中国水稻研究所，杭州 311401

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2种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
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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