関連する実験動画

Updated: Jul 10, 2026

A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function
10:19

A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function

Published on: November 21, 2015

ラベル付けされた酸素: 栽培中のトウモロコシの根を含む土壌を通過する拡散率の増加

C R Jensen, D Kirkham

    Science (New York, N.Y.)
    |August 23, 1963
    PubMed
    まとめ

    栽培するトウモロコシの根は,湿った土壌での酸素拡散を大幅に強化します. 根と空気で満たされた毛穴に関連したこの効果は,ワックスまたはガラスビーズでは観察されず,特定の根と土壌の相互作用を示唆しています.

    さらに関連する動画

    Design and Construction of an Experimental Setup to Enhance Mineral Weathering through the Activity of Soil Organisms07:22

    Design and Construction of an Experimental Setup to Enhance Mineral Weathering through the Activity of Soil Organisms

    Published on: November 10, 2023

    Development of a Cabbage Protoplast System for Studying Hypoxia Tolerance in Brassica08:09

    Development of a Cabbage Protoplast System for Studying Hypoxia Tolerance in Brassica

    Published on: September 20, 2024

    関連する概念動画

    Bioremediation00:46

    Bioremediation

    Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
    Responses to Drought and Flooding02:41

    Responses to Drought and Flooding

    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.
    Carbonation Shrinkage01:24

    Carbonation Shrinkage

    Atmospheric CO2 penetrates the concrete's pores and, in the presence of moisture, forms carbonic acid, which then reacts with calcium hydroxide in the hydrated cement, forming calcium carbonate. This process reduces the concrete's volume and is termed carbonation shrinkage.
    The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction facilitates the...
    Microbial Leaching01:27

    Microbial Leaching

    Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
    Bioreactor Controls-II01:18

    Bioreactor Controls-II

    In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...
    Methods of Medium Optimization01:28

    Methods of Medium Optimization

    Optimizing growth media enhances microbial proliferation and maximizes product yield. Statistical experimental design methodologies provide structured and reproducible approaches, offering progressively higher levels of robustness and efficiency.The One-Factor-at-a-Time (OFAT) MethodThe One-Factor-at-a-Time (OFAT) method involves adjusting a single variable while keeping all others constant. However, it cannot detect interactions between variables, often leading to suboptimal outcomes when...