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Characterization of phosphorus in algae from a eutrophic lake by solution 31P nuclear magnetic resonance spectroscopy.
- Source :
-
Limnology . Apr2019, Vol. 20 Issue 2, p163-171. 9p. - Publication Year :
- 2019
-
Abstract
- The identification and quantification of phosphorus (P) compounds derived from algal biomass are crucial for a better understanding of algal P dynamics in lake ecosystems. Quantity and species of P in algae collected from Chao Lake (a typical ultra-eutrophic lake) in China were analyzed by chemical analysis and 31P NMR. Total P (TP) in algae biomass ranged from 2671 to 5385 mg kg−1 of dry matter. Proportion of organic P (Po) accounted for 78.3 ± 2.6% in algae biomass collected from the western part of Chao Lake, which was higher than that (64.7 ± 1.4%) in the eastern part of the lake. Eight P species including inorganic P species (orthophosphate and pyrophosphate) and Po species (five monoesters P and diesters P) were identified in NaOH–EDTA extracts of algal samples. Monoesters P accounted for 48.4% in extracted TP, which was the main component of Po. β-glycerophosphates were the largest component of monoesters P, which accounted for 22.6% in extracted TP. This study improved knowledge on the mechanism of the cycling of endogenous P in the aquatic system and would be helpful in developing a strategy for control of repeated algae blooms in eutrophic Chao Lake. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NUCLEAR magnetic resonance spectroscopy
*ALGAE
*ALGAL blooms
*ECOSYSTEM dynamics
Subjects
Details
- Language :
- English
- ISSN :
- 14398621
- Volume :
- 20
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Limnology
- Publication Type :
- Academic Journal
- Accession number :
- 135580439
- Full Text :
- https://doi.org/10.1007/s10201-018-0562-2