对生物炭对大米生理学,酶学和转录基因组的毒理学影响的全面评估
Xuan Gao1, Haozhe Zhang2, Xiaonan Zhang2
1School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China; Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, Hangzhou 310023, China.
Ecotoxicology and environmental safety
|February 13, 2026
概括
生物炭 (BC) 在土壤整治中的应用可能对大米幼苗具有植物毒性. 水溶性成分和氧化应激是关键机制,特别是在较低的热解温度下,影响生长和叶绿素. 了解这些分子效应对于风险评估至关重要.
科学领域:
- 环境科学 环境科学
- 农业学是一种农业学.
- 分子生物学分子生物学
背景情况:
- 生物炭 (BC) 在土壤整治中的应用引发了对植物毒性的担忧.
- 关于BC植物毒性的现有研究往往忽视了潜在的分子机制,专注于表型和生理变化.
研究的目的:
- 研究苗上易腐废生物炭 (PWB) 和草生物炭 (RSB) 的植物毒性机制.
- 阐明不同热解温度和水溶性成分在BC植物毒性中的作用.
- 探索暴露于BC.的苗中的分子反应,包括转录组变化.
主要方法:
- 结合生理学,酶学和转录组分析.
- 在350,500和650°C的热解温度下研究PWB和RSB.
- 对大米苗苗发芽,根/芽延长,叶绿素含量,抗氧化剂水平和脂质过氧化的影响进行了评估.
主要成果:
- 低温 (350°C) PWB和RSB显著影响了发芽,根/芽的长度和叶绿素.
- 高温PWB影响了所有参数,而RSB影响了发芽,发芽长度和叶绿素,但没有影响根长度.
- 水溶性成分是发芽和生长抑制的主要原因;与生长抑制相关的氧化应激.
结论:
- 氧化应激是BC在苗上的关键植物毒性机制.
- 水溶性成分对BC的植物毒性有显著的贡献,这是一个经常被低估的因素.
- 转录组分析揭示了参与BC毒性的丰富途径 (MAPK,胡卜素生物合成),为风险评估和缓解提供了分子洞察力.
相关概念视频
Physiological Barriers
5.3K
Physiological barriers are semi-permeable cellular structures restricting drug diffusion into intracellular compartments and tissues. There are six types of physiological barriers: blood endothelial, cell membrane, blood-brain, blood-cerebrospinal fluid (CSF), blood-placenta, and blood-testis barriers.
The blood endothelial barrier is the most porous of these. It allows all small ionized, un-ionized, and lipophilic molecules to pass through the endothelial lining into the interstitial space...
The blood endothelial barrier is the most porous of these. It allows all small ionized, un-ionized, and lipophilic molecules to pass through the endothelial lining into the interstitial space...
5.3K
The Physiology of Taste
7.9K
The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the...
7.9K
Liver Physiology
3.9K
The liver, an essential organ in the human body, performs over 200 vital functions that can be broadly categorized into metabolic, hematological, endocrine regulation, and bile production.
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of 70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can...
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of 70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can...
3.9K
Physiology of Emotion
3.5K
The physiology of emotions is a multifaceted process involving the autonomic nervous system, brain structures, hormones, and neurotransmitters. This intricate interplay dictates how emotions manifest in the body and influence behavior.
Autonomic Nervous System
The autonomic nervous system (ANS) plays a critical role in emotional responses by regulating involuntary physiological functions. It consists of two main components: the sympathetic and parasympathetic systems. The sympathetic system...
Autonomic Nervous System
The autonomic nervous system (ANS) plays a critical role in emotional responses by regulating involuntary physiological functions. It consists of two main components: the sympathetic and parasympathetic systems. The sympathetic system...
3.5K
Buffer Effectiveness
55.6K
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
The buffer capacity is the amount of acid or base that can be added to a given volume...
55.6K
Framing Effects
8.0K
Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
8.0K


