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相关概念视频

Microorganisms in Agriculture and Food industry01:27

Microorganisms in Agriculture and Food industry

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Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
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What is Monogastric Digestion?01:50

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The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
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相关实验视频

Updated: Jul 12, 2025

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
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处理和储存方法会影响口腔和肠道微生物组合的组成.

Dorothy K Superdock1, Wei Zhang2, Angela C Poole1

  • 1Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States.

Frontiers in microbiology
|October 19, 2023
PubMed
概括
此摘要是机器生成的。

微生物组样本的储存和处理显著影响结果. 化便和新鲜唾液样本显示出更高的多样性,影响了微生物组成和研究比较.

关键词:
牙科 牙科是指牙科.结干燥 经过冷干燥的结的冷的冷的冷在这里,我们可以看到子子.液是一种液.溶解解化的冷凍化微生物组是一个微生物组.这是唾液,唾液.

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科学领域:

  • 微生物学 微生物学
  • 基因组学就是基因组学.
  • 生物信息学是一种生物信息学.

背景情况:

  • 微生物组研究依赖于准确的微生物社区概况.
  • 不一致的样本处理可以在微生物组数据中引入偏差.
  • 标准化协议对于可靠和可比的结果至关重要.

研究的目的:

  • 评估不同储存和加工方法对微生物组合的影响.
  • 评估样本处理如何影响微生物多样性和社区结构.
  • 为优化微生物组样本分析提供指导.

主要方法:

  • 收集了来自10个人的便,唾液和牙抽样.
  • 评估了四种便存储/加工方法,并将唾液/牙样本与新鲜对照进行了比较.
  • 利用16S rRNA基因测序来分析微生物社区的多样性和组成.

主要成果:

  • 解热化便,新鲜的整体唾液和解的牙上游液显示出最高的α多样性.
  • 化便样本显示了阿基亚菌的流行率增加和更高的Firmicutes/Bacteroidetes比率.
  • 在各种储存和加工条件下观察到ASV丰度的差异.

结论:

  • 储存和加工方法显著影响微生物组分析结果.
  • 建议对便样本进行冷化,对口腔样本进行新鲜/超养分.
  • 标准化样本处理对于避免微生物组研究中的混因素至关重要.