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相关概念视频

Responses to Salt Stress02:02

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Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
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Analysis of Oxidative Stress in Zebrafish Embryos
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在盐度应激下,红耳滑鼠Trachemys scripta elegans的胚胎发育和转录组分析.

Jing Lin1, Yuchen Kong1, Haitao Shi1

  • 1Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China.

Comparative biochemistry and physiology. Toxicology & pharmacology : CBP
|March 1, 2024
PubMed
概括

淡水中的盐度过高会损害海胚胎,导致形和死亡. 这项研究揭示了盐度通过促进细胞灭绝和改变红耳滑鼠的基因表达来破坏胚胎发育.

关键词:
细胞灭亡 (apoptosis) 是一种死亡的过程.进行比较的转录组.胚胎发育的时间淡水海是一种淡水海.形态学 形态学 形态学盐度压力是一种盐度压力.

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科学领域:

  • 环境毒理学环境毒理学
  • 发展生物学 发展生物学
  • 类学 类学 类学 类学

背景情况:

  • 淡水盐度对水生生物构成重大威胁.
  • 盐度对淡水乌胚胎发育的影响尚不清楚.

研究的目的:

  • 研究度升高对红耳滑鼠 (Trachemys scripta elegans) 胚胎形态和潜在分子机制的影响.
  • 确定不同盐度水平如何影响乌胚胎发育和器官生成.

主要方法:

  • 红耳滑鼠胚胎在受控环境中化,盐度为2.5 ppt和5 ppt.
  • 对胚胎进行形态检查,检查胚胎是否有发育不良.
  • 使用KEGG丰富的转录组分析来识别受影响的途径.
  • 对关键的亡和抗亡基因mRNA表达的定量分析 (p38,bax,bcl-2).

主要成果:

  • 暴露于盐度会导致各种胚胎形,包括大脑低成形,眼睛缺陷,骨发育不良以及,胎盘和四肢的变形.
  • 转录组分析显示,在发育,新陈代谢,疾病和细胞过程途径中,差异表达基因的显著丰富.
  • 度暴露导致mRNA表达增加的亲细胞亡基因 (p38,bax) 和减少表达的抗细胞亡基因 (bcl-2) 在早期和中期胚胎阶段.

结论:

  • 高度显著抑制胚胎发育,并损害淡水海的器官生成.
  • 观察到的发育损伤是通过促进亡途径和基因表达的改变来调解的.
  • 这些发现凸显了盐度增加对脆弱的淡水海种群的有害影响.