Microbial extracellular enzymes and the marine carbon cycle

C Arnosti - Annual review of marine science, 2011 - annualreviews.org
Extracellular enzymes initiate microbial remineralization of organic matter by hydrolyzing
substrates to sizes sufficiently small to be transported across cell membranes. As much of …

Dynamics of bacterial community composition and activity during a mesocosm diatom bloom

L Riemann, GF Steward, F Azam - Applied and environmental …, 2000 - Am Soc Microbiol
Bacterial community composition, enzymatic activities, and carbon dynamics were examined
during diatom blooms in four 200-liter laboratory seawater mesocosms. The objective was to …

[图书][B] Enzymes in the environment: activity, ecology, and applications

RG Burns, RP Dick - 2002 - taylorfrancis.com
Exploring the role of enzymes in biogeochemical processes, this reference explores the
function, molecular biology, and biochemistry of microorganisms and their intra-and extra …

Ecological significance of bacterial enzymes in the marine environment

HG Hoppe, C Arnosti, GJ Herndl - Enzymes in the environment …, 2002 - books.google.com
The general biochemical role of extracellular enzymes in the sea is similar to that in other
aquatic environments. However, in order to understand the ecological significance of …

Cascading predation effects of Daphnia and copepods on microbial food web components

E Zöllner, B Santer, M Boersma, HG Hoppe… - Freshwater …, 2003 - Wiley Online Library
We performed a mesocosm experiment to investigate the structuring and cascading effects
of two predominant crustacean mesozooplankton groups on microbial food web …

Implication of viral infections for greenhouse gas dynamics in freshwater wetlands: challenges and perspectives

G Bonetti, SM Trevathan-Tackett, PE Carnell… - Frontiers in …, 2019 - frontiersin.org
Viruses are non-living, acellular entities, and the most abundant biological agents on earth.
They are widely acknowledged as having the capacity to influence global biogeochemical …

Microbial production, utilization, and enzymatic degradation of organic matter in the upper trophogenic layer in the pelagial zone of lakes along a eutrophication …

RJ Chróst, W Siuda - Limnology and Oceanography, 2006 - Wiley Online Library
The major aim of this study was to evaluate the relationships between the rates of microbial
activities (phytoplankton primary production, bacterial secondary production, bacterial …

Response of bacterioplankton activity in an Arctic fjord system to elevated pCO2: results from a mesocosm perturbation study

J Piontek, C Borchard, M Sperling, KG Schulz… - …, 2013 - bg.copernicus.org
The effect of elevated seawater carbon dioxide (CO 2) on the activity of a natural
bacterioplankton community in an Arctic fjord system was investigated by a mesocosm …

Enzymatic activities of epiphytic and benthic thraustochytrids involved in organic matter degradation

L Bongiorni, A Pusceddu, R Danovaro - Aquatic microbial ecology, 2005 - int-res.com
Thraustochytrids are marine osmo-heterotrophic protists which have been isolated from
different habitats and substrates. These organisms are typically encountered in association …

Extracellular enzyme activity: indications for high short-term variability in a coastal marine ecosystem

M Kamer, F Rassoulzadegan - Microbial ecology, 1995 - Springer
Extracellular α-glucosidase, β-glucosidase, and aminopeptidase activity variations
(measured by use of fluorogenic substrate analogs) at a coastal station in the Mediterranean …