观察草对其本地微生物群的适应性较弱,取决于当地池水
1Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH, USA.
American journal of botany
|February 7, 2026
概括
局部适应是复杂的;草 (Lemna小) 从局部微生物中显示出有限的益处,这表明宿主微生物群相互作用取决于特征表达的环境环境.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 微生物学 微生物学
背景情况:
- 主体种群适应当地环境条件,包括微生物群等生物因素.
- 检测局部适应性可能会受到其测试的环境环境的影响.
- 主体微生物群相互作用对宿主健康和特征表达至关重要,可能调解适应当地非生物因素.
研究的目的:
- 为了研究藻 (Lemna minor) 的局部适应如何受到其微生物组和水源的影响.
- 为了确定与当地微生物和水一起生长时,草的健康状况和特征是否得到增强.
- 评估环境环境对宿主微生物群相互作用和局部适应的影响.
主要方法:
- 使用Lemna minor作为模型生物来研究宿主-微生物组-环境相互作用.
- 从四个不同的池站点实验性地重组了草,微生物和水.
- 在受控条件下,在井板微观宇宙中生长草,以测量宿主健康状况和特征.
主要成果:
- 草,微生物和水的起源显著影响了微生物和草的生长,以及草的特征.
- 观察到局部适应的证据有限,只有当草与当地微生物和水相结合时,叶片面积更大.
- 当草与当地微生物和水相结合时,微生物生长率略有降低,这表明局部相互作用的某种程度.
结论:
- 当地微生物组只为草提供了微小的生长益处,这表明微生物组介导的适应取决于环境.
- 利用植物微生物组的影响为应用研究提供了一个有希望的途径,例如在农业中.
- 生物观测当地微生物群仍然可能是有价值的,可能提供生态安全和更广泛的适用于其他植物物种.
相关概念视频
01:22Local Attraction
387
Local attraction refers to disturbances in compass readings caused by magnetic influences from nearby objects such as metal fences, buried pipes, vehicles, buildings, power lines, or natural iron ore deposits. Small items like wristwatches, steel tools, or belt buckles can also interfere with the compass by creating local magnetic fields that distort the Earth's natural magnetic field. These distortions lead to inaccurate readings, posing navigation and land surveying challenges.Local...
387
01:13Local Anesthetics: Pharmacokinetics
1.2K
The potency and duration of action of local anesthetics (LAs) are determined by their pharmacokinetics. Pharmacokinetics describes how LAs are absorbed, distributed, metabolized, and eliminated from the body. When administered to the vascular tissues, LAs are quickly absorbed and enter the systemic circulation, reducing their localized effects. Adding vasoconstrictors such as epinephrine to LAs reduces their absorption into the systemic circulation, making them clinically effective. The...
1.2K
03:21Weak Base Solutions
25.3K
Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially and so are classified as weak bases. These types of compounds are also abundant in nature and important commodities in various technologies. For example, global production of the weak base ammonia is typically well over 100 metric tons annually, being widely used as an agricultural fertilizer, a raw material for chemical synthesis of other...
25.3K
01:12Local Anesthetics: Adverse Effects
815
While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
815
01:22Absolute and Local Extreme Values
84
The highest and lowest values of a function, relative to a reference axis, are known as extreme values. These include absolute maximum and absolute minimum values, which represent the highest and lowest points the function reaches across its entire domain. Within a restricted portion of the function, the highest and lowest values are referred to as local maximum and local minimum values, respectively.Periodic functions, such as sine and cosine, show extreme values at infinitely many points due...
84
01:46Nuclear Localization Signals and Import
7.8K
Proteins targeted to the nucleus carry short stretches of amino acid sequences called the nuclear localization signal or NLS. Classical nuclear localization signals are of two types: monopartite and bipartite NLS. Monopartite classical NLS (cNLS) consists of a single cluster of 4-8 amino acids. Bipartite cNLS consists of two clusters of 2-3 amino acids and a 9-12 residue long proline-rich linker bridging the two clusters. Signal clusters are rich in positively charged amino acids such as...
7.8K