INFLUENCE OF TEMPERATURE, pH, AND OXIC STATE ON Ca-P DYNAMICS IN FLOODPLAIN WETLAND SEDIMENT: A MICROCOSM STUDY
111 / 0
Authors
-
S. K. MANNA
-
S. SAMANTA
-
C. BANDOPADHYAY
-
K. SARKAR
-
A. P. SHARMA
-
N. MAITRA
Abstract
Phosphorus (P) is a limiting nutrient determining the trophic state in freshwater ecosystems. Besides Fe-P interaction, organic matter decomposition is important in sediment P chemistry or release. Although Ca-P often forms the major inorganic P pool in sediment, role of Ca-P in P cycling/ release is not well studied. The present work conducted in laboratory microcosm using freshly collected floodplain wetland sediment showed that lower pH and moderate to high temperature slowly and significantly influence the Ca-P release; redox condition has less defined role. Besides Ca-P dissolution and P release by microbiota, including phosphate solubilizing bacteria, temperature also dictates microbial P requirement and uptake, ultimately determining the available P level in sediment. In winter chemical interactions might majorly regulate the sedimentary P cycle, however, microbial activities play an important role in P mobilization during summer.Key words: Sediment, Ca-P, temperature, pH, redox state, floodplain wetland
References
Ann, Y., Reddy, K. R. and Delfino, J. J. 2000. Influence of redox potential on phosphorus availability in chemically amended wetland organic soils. Ecological Engineering, 14: 169 -180.
Boström, B., Andersen, J. M., Fleischer, S. and Jansson,
M. 1988. Exchange of phosphorus across the sediment-water interface. Hydrobiologia, 170: 229 - 244.Einsele, W. G. 1938. Über chemische und kolloidchemische Vorgänge in Eisen-Phosphat-
Systemen unter limnochemischen und limnogeologischen Gesichtspunkten. Archiv für Hydrobiologie, 33: 361 - 387.
Fankem, H., Nwaga, D., Deubel, A., Dieng, L., Merbach,
W. and Etoa, F. X. 2006. Occurrence and functioning of phosphate solubilizing microorganisms from oil palm tree (Elaeis guineensis) rhizosphere in Cameroon. African Journal of Biotechnology, 5 : 2450 - 2460.
Gächter, R., and Meyer, S. 1993. The role of microorganisms in mobilization and fixation of phosphorus in sediments. Hydrobiologia, 253 : 103 - 121.
Jackson, M. L., 1973. Soil chemical analysis. Prentice-Hall of India Private Limited, New Delhi.
Jenkins, R. O., Morris, T. -A., Craig, P. J., Ritchie A. W. and Ostah, N. 2000. Phosphine generation by mixed-and monoseptic-cultures of anaerobic bacteria. The Science of the Total Environment, 250: 73 - 81
Jilbert, T., Slomp, C. P., Gustafsson, B. G and Boer, W. 2011. Beyond the Fe-P-redox connection: preferential regeneration of phosphorus from organic matter as a key control on Baltic Sea nutrient cycles. Biogeosciences, 8: 1699 - 1720.
Kucey R. M. N., Janzen H. H. and Legett M. E. 1989. Microbially mediated increases in plant-available phosphorus. Advances in Agronomy, 42: 198 - 228.
Lin, T. F., Huang, H. I., Shen, F. T. and Young, C. C. 2006. The protons of gluconic acid are the major factor responsible for the dissolution of tricalcium phosphate by Burkholderia cepacia CC-A174. Bioresource Technology, 97 : 957 - 1060.
Maitra, N., Whitman, W. B., Ayyampalayam, S., Samanta,
S., Sarkar, K., Bandopadhyay, C., Aftabuddin, M., Sharma A. P. and Manna, S. K. 2014. Draft genome sequence of the aquatic phosphorus-solubilizing and -mineralizing bacterium Bacillus sp. strain CPSM8. Genome Announcements, 2(1) : e01265–13.
Mort, H. P., Slomp, C. P., Gustafsson, B. G., Andersen, T.
J. 2010. Phosphorus recycling and burial in Baltic Sea sediments with contrasting redox conditions. Geochim
Cosmochim Acta, 74 : 1350 - 1362.
Downloads
Submitted
Published
Issue
Section
License
In case of publication of the article in the journal, author(s) are required to assign copyright to the Journal of the Inland Fisheries Society of India for its publication in any form/language including all media (print and electronic, or presently unknown), and exclusive right to use the matter for the life of the work (no time restriction on re use of matter).