相关实验视频
Updated: Sep 9, 2025

07:16
Thermal Limits Determination for Zooplankton Using a Heat Block
Published on: November 18, 2022
1.4K
一个寄生或相互的难题:共生原生可以增加半水生昆虫的热耐受性吗?
Md Tangigul Haque1, Shatabdi Paul1, Marie E Herberstein1,2,3
1School of Natural Sciences, Macquarie University, Sydney, New South Wales, Australia.
Royal Society open science
|September 4, 2025
概括
格雷加林内共生物增强的耐热性. 这一发现表明这些肠道微生物可能有助于昆虫在极端高温下生存,
科学领域:
- 生态学
- 同生相互作用
- 昆虫生理学
背景情况:
- 由于气温上升和热浪,
- 在极端条件下,热耐受性对外热的生存至关重要.
- 宿主微生物共生可以影响昆虫的热耐受性,但对格雷加林等内共生生物的数据有限.
研究的目的:
- 研究菌感染对Ischnura heterosticta的热耐受性的影响.
- 在昆虫中探索格雷加林作为内共生物的潜在有益作用.
主要方法:
- 在Ischnura heterosticta女中评估了耐热性.
- 自然感染和没有感染的之间的热耐受性比较.
主要成果:
- 与未受感染的个体相比,被虫感染的虫表现出明显更高的耐热性.
- 这提供了格雷加林在这种鸟物种中作为有益的内生生物的证据.
结论:
- 在热应激下,格雷加林内生生物可能会给提供生存优势.
- 在面对气候变化时,了解宿主-虫相互作用对于昆虫的保护至关重要.
- 这些发现表明可以帮助其他半水生昆虫应对气温上升.
相关概念视频
Osmoregulation in Insects
16.7K
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.
16.7K
Overview of Protists
167
Protists are diverse eukaryotic microorganisms that lack the specialized tissues of plants and animals and the chitinous cell walls of fungi. Their early divergence within Eukarya resulted in structural, functional, and ecological diversity. They are classified into supergroups such as Archaeplastida, Excavata, Amoebozoa, Rhizaria, Alveolata, and Stramenopiles, determined through genetic analysis and structural similarities.Structural and Functional AdaptationsProtists have various adaptations...
167
Diversity of Protists II
125
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
125
Hyperthermophilic Bacteria
95
Domain Bacteria includes some unique hyperthermophilic species. They exhibit remarkable adaptations that enable survival in extreme environments.Thermotoga species are rod-shaped, gram-negative, non-sporulating hyperthermophiles that form a sheath-like envelope called a toga. They ferment sugars or starch, producing lactate, acetate, CO₂, and H₂, and can also grow via anaerobic respiration using H₂ and ferric iron. Found in hot springs and hydrothermal vents, over 20% of their...
95
Factors Influencing Microbial Growth: Temperature
169
Microorganisms display remarkable adaptations, enabling them to thrive in diverse ecological niches across a wide range of temperatures. Temperature profoundly influences microbial growth by affecting enzymatic activity, membrane fluidity, and other cellular processes.Each microorganism operates within a specific temperature range defined by three cardinal points: minimum, optimum, and maximum. Below the minimum temperature, membranes lose fluidity, halting transport processes. Above the...
169
Diversity of Protists I
116
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
116

