Abstract
A major controlling factor for bacterial growth is their ability to hydrolyze high molecular weight molecules too complex to be transported directly across the cell's membrane. The utility of such an extracellular enzyme hydrolysis system, location of the enzymes (free or attached), environmental controls of enzyme production, and implications of multiple hydrolysis-uptake systems are explored in relation to free-living oceanic bacteria and bacteria attached to rapidly sinking aggregates.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Azam F, Smith DC (1991) Bacterial influence on the variability in the ocean's biogeochemical state: a mechanistic view. In: Demers S (ed) Particle analysis in oceanography. (NATO ASI Series, vol G27) Springer Verlag, Berlin-Heidelberg, pp 213–236
Button DK (1994) The physical base of marine bacterial ecology. Microb Ecol 28:xxx-xxx
Cho BC, Azam F (1988) Major role of bacteria in biogeochemical fluxes in the ocean's interior. Nature 332:441–443
Chróst RJ (1991) Environmental control of the synthesis and activity of ectoenzymes. In: Chróst RJ (ed) Microbial enzymes in aquatic environments. (Brock/Springer series in contemporary bioscience) Springer-Verlag, New York pp 29–59
DeLong EF, Franks DG, Alldredge AL (1993) Phylogenetic diversity of aggregate-attached vs. free-living marine bacterial assemblages. Limnol Oceanogr 38(5):24–934
Gooday AJ, Turley CM (1990) Responses by benthic organisms to inputs of organic material to the ocean floor: a review. Phil Trans R Soc Lond A331:119–138
Smith DC, Simon AL, Alldredge AL, Azam F (1992) Intense hydrolytic enzyme activity on marine aggregates and implications for rapid particle dissolution. Nature 359:139–142
Turley CM (1994) The effect of pressure on leucine and thymidine incorporation by free-living bacteria and by bacteria attached to rapidly sinking particles. Deep-Sea Res 40:2193–2206
Turley CM, Mackie PJ (1994) Bacterial and cyanobacterial flux to the deep NE Atlantic on sedimenting particles. Deep-Sea Res (in press)
Wetzel RG (1991) Extracellular enzymatic interactions: storage, redistribution, and interspecific communication. In: Chróst RJ (ed) Microbial enzymes in aquatic environments. (Brock/Springer series on contemporary bioscience) Springer-Verlag, New York pp 6–28
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Turley, C. Controls of the microbial loop: Nutrient limitation and enzyme production, location and control. Microb Ecol 28, 287–289 (1994). https://doi.org/10.1007/BF00166818
Issue Date:
DOI: https://doi.org/10.1007/BF00166818