|  |
Program |
 |
| |
 |
General Session 3: Biological oceanography & global change |
| |
|
|
Measurenment of 5-aminolevulinic acid in laboratory and field samples
GS3-62-S
Yan Jiang* , Xiamen University
Chenhe Zheng, Xiamen University
Shuimiao Lu, Xiamen University
Deli Wang, Xiamen University
Presenter Email: 397126178@qq.com
|
| 5-aminolevulinic acid (ALA), as an amino acid, widely exists in biology as a precursor of tetrapyrrole which is further synthesized into porphyrin,chlorophyll and phycoerythrobilin. ALA could be synthesized in many organisms. In photosynthetic organisms, ALA is synthesized in plastids, and then converted into chlorophyll and heme. In bacteria, fungi and animals, ALA is synthesized in plastid membranes, and then converted into porphyrins. Current researches mainly focused on ALA’s applications in medical treatments, and agriculture. So far there is still no information available regarding its measurements in marine phytoplankton and bacteria. We for the first time analyzed ALA in a set of micro-organisms including algae£¨Nannochloropsis£©£¬bacteria£¨Synechococcus WH7803£©and a series of field samples in Tong’an Bay by HPLC. Our study showed that ALA widely existed in marine algae with extremely low concentrations. With the growth of different algae, the synthesis period of ALA is also different while for water environment when red tides£¨Akashiwo sanguinea£© happened, ALA can be detected. So we infer that ALA maybe the trigger of the phytoplankton bloom, and the further investigation are needed for its ecological role in the ocean. |
|
|
|
|