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青果期刊 | 水生生物所、南京农大等:揭示瘤胃纤毛虫调控反刍动物甲烷排放的新机制(Science)

  • 2026-05-04 18:00:17
青果期刊 | 水生生物所、南京农大等:揭示瘤胃纤毛虫调控反刍动物甲烷排放的新机制(Science)
研究概要:
    全球甲烷排放的增加主要源于人类活动,如畜牧业、水稻种植、化石能源生产与利用等,其中,牛羊等反刍动物排放的甲烷占全球人为甲烷排放量的30%以上,反刍动物甲烷主要源于瘤胃微生物厌氧发酵产生,其中原生动物纤毛虫在瘤胃微生物总量占比最高可达50%。长期以来,学界普遍认为瘤胃纤毛虫与反刍动物甲烷排放密切相关,但其内在调控机制并不清楚。该研究阐明了瘤胃纤毛虫调控反刍动物甲烷排放的机制,并在瘤胃纤毛虫资源、新型产氢细胞器发现和调控甲烷排放机制等方面取得了系列原创性重大突破。

    研究发现:在瘤胃纤毛虫体内,首次发现了起源于内膜系统的、具有单层膜的新型产氢细胞器—氢小体,与以往在其他真核生物中发现的起源于线粒体的、具有双层膜的产氢体截然不同。氢小体中含有瘤胃纤毛虫独有的氢化酶和氧还原酶,在氢气生成和去除进入瘤胃的氧气中发挥关键作用,为产甲烷菌提供了产甲烷的底物和厌氧环境。基于瘤胃纤毛虫基因组目录,研究对近两千个宏组学数据进行分析,揭示了纤毛虫、产甲烷菌与甲烷排放之间的强相关性,阐明了不同瘤胃纤毛虫调控反刍动物甲烷排放的差异化机制。该研究挑战了既有认识和观念,重塑了学界对瘤胃纤毛虫调控甲烷排放机制的科学认知,为畜牧业绿色低碳发展、研发靶向减排新技术、开发基于纤毛虫的畜牧业“碳减排”策略提供了重要理论支撑。

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瘤胃纤毛虫基因组目录

瘤胃纤毛虫新型产氢细胞器——氢小体

核心PI

缪炜

中国科学院

水生生物研究所

简介:
缪炜,中国科学院水生生物研究所研究员,所长,杰青,博士生导师。2002年毕业于中国科学院水生生物研究所获博士学位,随后留所担任助理研究员,2004年、2007年分别以高级访问学者身份分别在美国加洲大学圣巴巴拉分校和罗切斯特大学开展合作研究,2018年聘为研究员
研究及招生方向:

1、原生动物系统学与进化基因生物学

2、原生动物进化与功能基因组学

3、原生动物基因工程学

4、原生动物分子毒理学

主要科研项目:

未公示;


毛胜勇

南京农业大学

动物科技学院

简介:

毛胜勇,南京农业大学动物科技学院教授,院长,博士生导师。2006年毕业于南京农业大学预防兽医学专业获博士学位,随后留校工作,2008年去往荷兰瓦赫宁根大学微生物系担任访问学者,连续5年入选爱思唯尔(Elsevier)中国高被引学者和全球前2%顶尖科学家榜单。入选江苏省“333工程”中青年科技领军人才(第二层次)、江苏省青蓝工程中青年学术带头人和江苏省“六大人才高峰”高层次人才。

研究及招生方向:

1、反刍动物营养与消化道微生物研究

2、奶牛营养与饲料

3、生物发酵饲料

4、伴侣动物营养

主要科研项目:

1、技术服务:豆柴宠物用品有限公司---南京农业大学专家工作站共建协议书 , 2024-02 -2027-01;

2、技术开发:仔猪微生物饲料添加剂的开发 (2023320122000546) , 2023-08 -2025-07 , 在研;

3、自然科学类省市项目:棉花秸秆饲料化利用关键技术研究与示范 (ZX2400051) , 2023-01 , 在研;

4、技术服务:规模化牧场奶牛生产性能测定 (2021320122000965) , 2022-06 -2022-02 , 结题;

5、国家重点研发计划【任务】:瘤胃微生物代谢调控改善奶品质及活性因子关键技术 (ZX2300506) , 2022-01 , 在研;

6、重点支持项目:独龙牛高效利用日粮木质纤维素的胃肠道微生物学机制研究 (ZX2300056) , 2022-01 , 在研;

7、技术开发:基于玉米秸秆的反刍动物发酵饲料的研制 (2021320122000157) , 2021-05 -2023-06 , 在研;

8、中央高校基本科研业务费:亚急性瘤胃酸中毒引起牛奶重要营养品质降低的机理及调控技术研究 (Y0202100177) , 2021-04 , 在研;

文章信息:

上述研究成果发表于国际顶级期刊《Science》,研究由水生所联合南京农业大学、江汉大学、吉林农业大学、西北工业大学完成。谢斐、姜传奇、李志鹏、冯金梅和闫小婷为论文的共同第一作者,缪炜、熊杰、毛胜勇和邱强为共同通讯作者研究得到了国家重点研发计划、国家自然科学基金、中国科学院先导专项等项目资助,并得到了水生所分析测试中心、北京大学冷冻电镜平台、中国科学院超级计算武汉分中心、南京农业大学生物信息高性能计算平台和国家水生生物种质资源库的支持

论文发表:

Fei Xie, Chuanqi Jiang, Zhipeng Li, Jinmei Feng, Xiaoting Yan, Che Hu, Jinying He, Xiaocui Chai, Zan Huang, Qinhui Xu, Yujia Wang, Yang Xiao, Kai Chen, Weiwei Qin, Yuan Xiao, Jing Zhang, Guangying Wang, Wei Jin, Kaizhen Guo, Limei Lin, Yiqun Liu, Xinxin Gao, Luqin Zheng, Xiji Shu, Rong Wang, Min Wang, Huazhe Si, Rui Du, Weiyun Zhu, Le Luo Guan, Wen Wang, Qiang Qiu, Shengyong Mao, Jie Xiong, and Wei Miao, Rumen ciliates modulate methane emissions in ruminantsScience.

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  1. CONNECT:[ UseTime:0.000578s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000747s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000274s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000286s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000461s ]
  6. SELECT * FROM `set` [ RunTime:0.000198s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000564s ]
  8. SELECT * FROM `article` WHERE `id` = 552797 LIMIT 1 [ RunTime:0.000468s ]
  9. UPDATE `article` SET `lasttime` = 1778261909 WHERE `id` = 552797 [ RunTime:0.002968s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000249s ]
  11. SELECT * FROM `article` WHERE `id` < 552797 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000448s ]
  12. SELECT * FROM `article` WHERE `id` > 552797 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000350s ]
  13. SELECT * FROM `article` WHERE `id` < 552797 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003748s ]
  14. SELECT * FROM `article` WHERE `id` < 552797 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.006888s ]
  15. SELECT * FROM `article` WHERE `id` < 552797 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.005873s ]
0.102738s