Luminescent Whole-Cell Cyanobacterial Bioreporter for Measuring Fe Availability in Diverse Marine Environments | Zendy

Ramakrishna Boyanapalli | Zendy; George S. Bullerjahn | Zendy; Christa Pohl | Zendy; Peter Croot | Zendy; Philip W. Boyd | Zendy; R. Michael L. McKay | Zendy

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Luminescent Whole-Cell Cyanobacterial Bioreporter for Measuring Fe Availability in Diverse Marine Environments

Author(s) -

Ramakrishna Boyanapalli,

George S. Bullerjahn,

Christa Pohl,

Peter Croot,

Philip W. Boyd,

R. Michael L. McKay

Publication year - 2006

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.01670-06

Subject(s) - bioreporter , vibrio harveyi , synechococcus , phytoplankton , seawater , cyanobacteria , environmental chemistry , luminescence , iodate , biology , vibrio , nutrient , chemistry , ecology , materials science , reporter gene , inorganic chemistry , bacteria , optoelectronics , biochemistry , gene expression , genetics , iodide , gene

A Synechococcus sp. strain PCC 7002 Fe bioreporter was constructed containing the isiAB promoter fused to the Vibrio harveyi luxAB genes. Bioreporter luminescence was characterized with respect to the free ferric ion concentration in trace metal-buffered synthetic medium. The applicability of the Fe bioreporter to assess Fe availability in the natural environment was tested by using samples collected from the Baltic Sea and from the high-nutrient, low-chlorophyll subarctic Pacific Ocean. Parallel assessment of dissolved Fe and bioreporter response confirmed that direct chemical measurements of dissolved Fe should not be considered alone when assessing Fe availability to phytoplankton.

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