Video Experimental Relacionado

Updated: Jul 18, 2026

Multi-analyte Biochip (MAB) Based on All-solid-state Ion-selective Electrodes (ASSISE) for Physiological Research

Multi-analyte Biochip (MAB) Based on All-solid-state Ion-selective Electrodes (ASSISE) for Physiological Research

Published on: April 18, 2013

La absorción del dimetilsulfoniopropionato por el fitoplancton marino

Maria Vila-Costa¹, Rafel Simó, Hyakubun Harada

¹Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar (CSIC), Pg Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain. mariavila@icm.csic.es

Science (New York, N.Y.)

|October 28, 2006

Resumen

Los microbios marinos como el fitoplancton y las bacterias consumen dimetilsulfoniopropionato (DMSP). Este proceso redirige el azufre orgánico, impactando las emisiones atmosféricas de azufre del plancton.

Área de la Ciencia:

Ecología microbiana marina ecología microbiana marina.
Los ciclos biogeoquímicos son ciclos biogeoquímicos.
Oceanografía La oceanografía es la oceanografía.

Sus antecedentes:

El dimetilsulfoniopropionato (DMSP) es un compuesto orgánico de azufre clave en los ecosistemas marinos.
El DMSP juega un papel importante en el ciclo del azufre entre los productores primarios y los consumidores.

Objetivo del estudio:

Investigar la absorción y asimilación de DMSP por los microbios marinos.
Para entender el destino del azufre DMSP dentro de las redes alimenticias microbianas marinas.

Principales métodos:

Incubaciones de las comunidades microbianas marinas naturales.
Uso de DMSP radiomarcado para rastrear la asimilación de azufre.
Experimentos con cultivos axénicos de fitoplancton y bacterias dominantes.

Principales resultados:

Los grupos dominantes de fitoplancton (Prochlorococcus, Synechococcus, diatomeas) asimilan el azufre del DMSP.
Las bacterias heterotróficas también absorben y asimilan el azufre DMSP.
Una parte del azufre orgánico producido por el plancton se desvía de la emisión atmosférica.

Conclusiones:

El fitoplancton marino y las bacterias utilizan activamente el DMSP, influyendo en el ciclo del azufre.
La asimilación de DMSP por los microbios reduce la cantidad de azufre orgánico disponible para su liberación atmosférica.
Este consumo microbiano es un proceso crítico en el ciclo del azufre marino.

Más Videos Relacionados

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Published on: July 10, 2015

Extraction and Detection of Geosmin and 2-Methylisoborneol in Water and Fish using High-Capacity Sorptive Extraction Probes and GC-MS

Extraction and Detection of Geosmin and 2-Methylisoborneol in Water and Fish using High-Capacity Sorptive Extraction Probes and GC-MS

Published on: July 3, 2025

Videos de Conceptos Relacionados

The Carbon Cycle

The Carbon Cycle

Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.

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.

Sulfur Assimilation

Sulfur Assimilation

Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to become...

Red Algae

Red Algae

Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...

Green Algae

Green Algae

Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...

Microbial Bioremediation of Hydrocarbons

Microbial Bioremediation of Hydrocarbons

Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...