Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
FEMS microbiology letters
99 (1992), S. 0
ISSN:
1574-6968
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
Abstract Nickel bioconcentration in different cell preparations of the cyanobacterium Nostoc muscorum was examined. A two- or three-fold increase in phosphate concentration over that prescribed in growth medium (58 μM), favoured nickel accumulation restricted to a threshold limit. Intact cells showed highest nickel bioconcentration (8.41 μmol mg−1 dry wt) over spheroplasts (6.19 μmol mg−1 dry wt) or polyphosphate bodies (5.88 μmol mg−1 dry wt). Such preparations derived from similar cells indicate that the cyanobacterial cell wall could accommodate around 14–19% of the total nickel taken in by the cell with the overall nickel-bioconcentration sequence as: intact cells 〉 spheroplasts 〉 polyphosphate bodies 〉 cell wall. The data suggest that polyphosphate bodies are the main sink for nickel.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1574-6968.1992.tb05560.x
Permalink
|
Location |
Call Number |
Expected |
Availability |