Flavodoxin as an in situ marker for iron stress in phytoplankton
Article Abstract:
A biochemical marker, such as flavodoxin, can be used to map the physiological response to iron stress in natural populations. This is possible because flavodoxin expression in microorganisms is controled by the supply of iron. Flavodoxin evaluations along a 900-km east-west transect in the northeastern subarctic Pacific show significant differences in iron stress with cells to the east of the 135 degrees west meridian being iron replete. Immunostaining of single cells shows flavodoxin to be present within the chloroplasts of diatoms.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Iron findings
Article Abstract:
The satellite images were used to pinpoint an annually recurring bloom near Kerguelen. The findings reveal that the presence of zooplankton aids the remineralization of both iron and carbon, and thus reduces carbon export while resupplying iron to the phytoplankton.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
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Genome sequences from the sea
Article Abstract:
Genomic studies lead to a better understanding of ecology, biological efficiency and biogeochemistry. The genomes of four strains of phytoplankton are described, which reveal their genetic adaptations to distinct marine niches.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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