大型 (Paramisgurnus dabryanus) 盐应激弹性的分子驱动因素和生理后果
Ran Xu1, Gaofeng Peng1, Wei Wang2
1College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China; Engineering Technology Research Center of Healthy Aquaculture, Anhui Agricultural University, Hefei 230036, China.
Ecotoxicology and environmental safety
|January 6, 2026
概括
帕拉米斯格鲁努斯·达布里亚努斯 (Paramisgurnus dabryanus) 对盐水的耐受性很高. 这项研究揭示了其独特的分子和生理战略,以应对度和度的压力,为水产养殖在充满挑战的环境中铺平了道路.
科学领域:
- 水生生物学 水生生物学
- 环境科学环境科学
- 基因组学就是基因组学.
背景情况:
- 将水产养殖业扩展到内陆盐水域对于土地利用效率至关重要.
- 帕拉米斯格努斯·达布里亚努斯 (Paramisgurnus dabryanus) 对极端的盐条件表现出了显著的耐受性.
- 这种耐受性背后的生理和分子机制尚不清楚.
研究的目的:
- 为了确定P. dabryanus的盐度和度的致命度 (LC50).
- 研究对盐和压力的转录和生理反应.
- 阐明P. dabryanus.双重压力适应的分子基础.
主要方法:
- 在P. dabryanus.中确定盐度 (13.2‰) 和度 (126.64 mmol/L) 的LC50.
- 转录基因分析以识别对盐度敏感,性敏感和相互作用基因 (分别为525,860和813基因).
- 生理学评估,以评估离子稳态和抗氧化反应在压力下.
主要成果:
- 盐度压力主要影响离子运输和类固醇激素生物合成.
- 性压力诱导了全面的氧化应激反应.
- 结合和的压力放大了基因表达,特别是抗氧化剂和类固醇代谢基因,并影响了离子稳态和抗氧化剂防御.
结论:
- P. dabryanus 拥有独特的分子和生理策略来应对单个和组合的盐压力.
- 该物种对双重压力条件有显著的耐受性,相互作用影响基因表达和生理反应.
- 这些发现凸显了P. dabryanus在盐环境中的商业水产养殖的潜力.
相关概念视频
Responses to Salt Stress
14.4K
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.
14.4K
Osmoregulation in Fishes
52.7K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
52.7K
Responses to Heat and Cold Stress
14.6K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
14.6K
Responses to Drought and Flooding
11.9K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
11.9K
Tonicity in Animals
123.2K
The tonicity of a solution determines if a cell gains or loses water in that solution. The tonicity depends on the permeability of the cell membrane for different solutes and the concentration of nonpenetrating solutes in the solution within and outside of the cell. If a semipermeable membrane hinders the passage of some solutes but allows water to follow its concentration gradient, water moves from the side with low osmolarity (i.e., less solute) to the side with higher osmolarity (i.e.,...
123.2K


