TITLE:
Potential of proteins and their expression level in marine phytoplankton (Prymnesium parvum) as biomarker of N, P and Fe conditions in aquatic systems
AUTHORS:
Hiroshi Hasegawa, M. Mamunur Rahman, Sayaka Kato, Teruya Maki, M. Azizur Rahman
KEYWORDS:
Phytoplankton; Protein; Biomarker; Nitrogen; Phosphorus; Iron; Aquatic Systems
JOURNAL NAME:
Advances in Biological Chemistry,
Vol.3 No.3,
June
25,
2013
ABSTRACT:
Nitrogen (N), phosphorus (P) and Iron (Fe) are important
nutrients for phytoplankton, and they are the key limiting nutrients in many
marine systems. In the present study, growth and protein expression of marine
phytoplankton Prymnesium parvum under
different nitrate, phosphate and iron conditions were investigated in order
to evaluate whether proteins and their expression level could be used as biomarkers of N, P, and Fe conditions in
aquatic systems. The growth of P.
parvum increased with the increase of nitrate, phosphate and iron
concentrations in the culture medium. Protein expression levels also differed
significantly (p p P. parvum is indicative of phosphate deplete condition in aquatic
systems. The expression level of a 42 kDa was significantly higher (p P. parvum.