在春季开花后的微生物再矿化过程中,在北波罗的海北部有过多的酸盐

相关实验视频

Updated: Jun 20, 2025

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Published on: July 22, 2019

Mari Vanharanta^1,2, Mariano Santoro^3,4, Cristian Villena-Alemany⁵

¹Tvärminne Zoological Station, University of Helsinki, J. A. Palménin tie 260, 10900 Hanko, Finland.

FEMS microbiology ecology

|July 22, 2024

概括

微生物酶活动影响了波罗的海的循环. 碳和的添加转移了营养降解到与颗粒相关的细菌,可能会保留表面水中的营养.

科学领域:

海洋微生物生态学
海洋环境中的生物地化学循环.

背景情况:

在波罗的海的春季后开花中,的度正在上升.
这种多余 (P) 的命运和微生物过程的作用仍然不清楚.

研究的目的:

研究微生物降解在吸收多余中的作用.
检查碳 (C) 和 (N) 的修改如何影响微生物过程和P同化.

主要方法:

在波罗的海进行了为期17天的中宇宙实验.
测量了细胞外酶活动,细菌的丰富性,生产和社区组成,跨越尺寸分数.
应用的C和N修正单独和组合 (NC).

主要成果:

性酸酶活性主要被溶解,导致过量的酸盐.
最初,自由生活的细菌主导了酶生产.
通过NC处理,酶活性和单降解转移到与颗粒相关的部分.

结论:

微生物降解,特别是粒子相关细菌的降解,在循环中起着关键作用.
微生物活动的变化可能会增加地表水中的营养物质保留.
需要对沉积的进一步研究来证实营养保留假设.

关键词:

过量的酸盐细胞外酶活性的细胞外酶.这是一个中宇宙 (mesocosm).北波罗的海北部的波罗的海.有机物降解有机物降解春后的花朵春后的花朵

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相关概念视频

The Phosphorus Cycle

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.

Primary Production

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.

Bioremediation

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.