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相关概念视频

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Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
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Translational regulation in prokaryotes ensures efficient protein synthesis by controlling ribosome access to mRNA. This regulation is mediated by secondary RNA structures, including translational riboswitches, RNA thermometers, and small RNAs (sRNAs), which respond to intracellular and environmental signals to modulate gene expression.Translational RiboswitchesRiboswitches in the leader region of mRNAs can regulate translation by altering the accessibility of the Shine-Dalgarno (SD) sequence,...
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与Penaeus indicus盐度压力相关的转录组变异.

Karthic Krishnan1, Sudheesh K Prabhudas1, Kumaravel Jayaraman1

  • 1ICAR - Central Institute of Brackishwater Aquaculture, Chennai, 600028, Tamil Nadu, India.

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概括
此摘要是机器生成的。

印度白 (Penaeus indicus) 通过改变基因表达,特别是脂质和氨基酸代谢来适应低盐度. 这项研究揭示了养殖中调节的关键分子机制.

关键词:
适应 适应 适应透调节是指透调节的过程.佩内乌斯指数 (Penaeus indicus) 是一个指数类植物.盐度压力是一种盐度压力.鱼转录基因组转录基因组是什么

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科学领域:

  • 水产养殖科学 水产养殖科学
  • 海洋生物学 海洋生物学
  • 基因组学就是基因组学.

背景情况:

  • 印度白 (Penaeus indicus) 是一种重要的水水产养殖物种,原产于印度.
  • 是euryhaline和调节透度,但盐度波动导致压力,影响生长和免疫力.

研究的目的:

  • 为了研究Penaeus indicus对低盐度压力的适应性转录基因反应.
  • 为了阐明在中奥斯莫调节的基础上的分子机制.

主要方法:

  • 用RNA测序 (RNA-seq) 来比较在低盐度下长达三周的转录组特征.
  • 使用Trinity的de novo组装生成了一个全面的转录数据集.
  • 差异基因表达分析和KEGG通路丰富确定了关键的生物过程.

主要成果:

  • 总共收集了173,582个转录,在7,14和21天的压力中发现了大量的差异表达基因 (DEGs).
  • 对KEGG途径的分析显示了脂质代谢,氨基酸代谢,糖解和信号通路中的丰富.
  • 定量实时PCR (qPCR) 验证了精选的透调节和免疫反应基因的基因表达水平.

结论:

  • 这项研究提供了关于Penaeus indicus在应对低盐度时的适应性转录基因机制的见解.
  • 了解这些分子通路对于改善养殖实践和对环境变化的弹性至关重要.