压力诱导的动态调整保存的miR164:NAC模块的压力
Yuniet Hernandez1, Kavita Goswami1, Neeti Sanan-Mishra1
1Plant RNAi Biology Group International Centre for Genetic Engineering and Biotechnology New Delhi India.
Plant-environment interactions (Hoboken, N.J.)
|June 7, 2023
概括
大豆产量受到盐和干旱压力的限制. 我们发现miR164:NAC模块动态调节植物应激反应,为改善作物弹性提供了洞察力.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 盐度和干旱显著限制了大豆 (Glycine max) 的生产力,特别是在种子发育过程中.
- miR164:NAC模块与植物应激反应有关,但其在大豆盐应激中的作用尚未完全理解.
研究的目的:
- 研究miR164:NAC模块在大豆对盐应激反应中的生物学作用.
- 为了识别大豆中对盐有反应的微RNA (miRNA) 和它们的标.
主要方法:
- 利用miScript miRNA数组识别敏感 (William82) 和耐受 (INCASoy36) 豆类基因型中的对盐有反应的miRNA.
- 分析了降解组数据集,以确定盐调节的miRNAs的目标.
- 进行过渡性联合表达试验和生物信息学分析以验证miRNA-目标相互作用并评估保存.
主要成果:
- 确定了215个对盐有反应的miRNA;四个向的NAC转录因子 (TF).
- miR164k和miR408d表现出基因型之间的对抗性表达模式.
- 在无压力条件下,耐受性INCASoy36的miR164k表达更高,但在盐压力下下调,而在敏感的William82.
- 验证了gma-miR164k针对GmNAC1转录,在物种之间保持调节.
结论:
- 保存的miR164:NAC-TF模块是由遗传因素动态调节的.
- 这种动态调制在确定植物对环境压力的适应性反应中起着至关重要的作用,例如盐度和干旱.
相关概念视频
Transient and Steady-state Response
221
In control systems, test signals are essential for evaluating performance under various conditions. The ramp function is effective for systems undergoing gradual changes, while the step function is suitable for assessing systems facing sudden disturbances. For systems subjected to shock inputs, the impulse function is the most appropriate test signal.
These test signals are integral in designing control systems to exhibit two key performance aspects: transient response and steady-state...
These test signals are integral in designing control systems to exhibit two key performance aspects: transient response and steady-state...
221
Stress: General Loading Conditions
343
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
343
Biasing of P-N Junction
623
The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
623
Stress Concentrations
362
Stress concentration is when stress intensifies near discontinuities such as holes or abrupt cross-sectional changes in a structural member. This localized stress can often surpass the average stress within the member. The stress distribution in flat bars, either with a circular hole or varying widths connected by fillets, can be determined experimentally using a photoelastic method. The results are based on ratios of geometric parameters like the ratio of the hole's radius to the smaller...
362
Stress Response System
124
The stress response system, also known as the fight-or-flight response, is the body's automatic physiological reaction to perceived threats. Hans Selye introduced the concept of General Adaptation Syndrome (GAS) to describe the predictable pattern of changes that occur in response to stress. GAS consists of three sequential stages: alarm, resistance, and exhaustion. This model helps explain how chronic stress can contribute to health problems.
Alarm stage
In the alarm stage, the body's...
Alarm stage
In the alarm stage, the body's...
124
MOS Capacitor
860
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
860


