极地研究

极地研究 ›› 1992, Vol. 3 ›› Issue (1-English): 31-39.

• 目次 • 上一篇    下一篇

NATURAL PRODUCTIVITY OF ACRYLIC ACID AND DIMETHYL SULPHIDE DURING A SUMMER BLOOM OF PHAEOCYSTIS POUCHETII IN ANTARCTIC COASTAL WATER

 Yang Hefu1, Andrew R Mctaggart2, Andrew Davidson2 and Harry Burton2   

  1. 1Second Institute of Oceanography, SOA, Hangzhou 320012, China 2Australia Antarctic Division, Channel Highway Kingston, Tasmania 7050
  • 出版日期:1942-03-30 发布日期:1942-03-30
  • 通讯作者: Yang Hefu

NATURAL PRODUCTIVITY OF ACRYLIC ACID AND DIMETHYL SULPHIDE DURING A SUMMER BLOOM OF PHAEOCYSTIS POUCHETII IN ANTARCTIC COASTAL WATER

 Yang Hefu1, Andrew R Mctaggart2, Andrew Davidson2 and Harry Burton2   

  1. 1Second Institute of Oceanography, SOA, Hangzhou 320012, China 2Australia Antarctic Division, Channel Highway Kingston, Tasmania 7050
  • Online:1942-03-30 Published:1942-03-30
  • Contact: Yang Hefu

PDF (PC)

920

被引次数

5

摘要：

Water samples were collected over P. ponchetii bloom period beginning in November 1988, in 15m water column, from 10km offshore of Davis Station, Vestfold Hill, Antarctica. The concentrations of acrylic acid and dimethyl sulphide (DMS), which are toxic compounds in the water samples, were determined by HPLC and GC. The result shows that the concentration of acrylic acid varies in 0. 001 - 0. 510μmol?L-1 and the concentration of DMS in 0. 003-0. 588 μmol?L-1 during P. pouchetii bloom. Both the increased since late December 1988 and reached the highest concentration in early January 1989, then they decreased rapidly and returned to lower level from middle January to February in agreement with variation in cell number of the unicell alga P. pouchetii. The correlation coefficients between acrylic acid and P. pouchetii and between DMS and P. pouchetii are all 0. 998. It is undoubted that P. pouchetii produced acrylic acid and DMS. The highest productivity of acrylic acid and DMS were 9. 76X10-8 μmol?cell-1 and 13. 09 ×10-8 μmol?cell-1, respectively, during P. pouchelii bloom. A cellular product, dimethylsulphonium propionate (DMSP), is decomposed into acrylic acid and DMS, and the formation of DMSP is probably from methionine which could be utilized by P. pouchelii.

关键词:  Antarctica, acrylic acid, DMS, prouductivity, P. pouchetii

Abstract:

Water samples were collected over P. ponchetii bloom period beginning in November 1988, in 15m water column, from 10km offshore of Davis Station, Vestfold Hill, Antarctica. The concentrations of acrylic acid and dimethyl sulphide (DMS), which are toxic compounds in the water samples, were determined by HPLC and GC. The result shows that the concentration of acrylic acid varies in 0. 001 - 0. 510μmol?L-1 and the concentration of DMS in 0. 003-0. 588 μmol?L-1 during P. pouchetii bloom. Both the increased since late December 1988 and reached the highest concentration in early January 1989, then they decreased rapidly and returned to lower level from middle January to February in agreement with variation in cell number of the unicell alga P. pouchetii. The correlation coefficients between acrylic acid and P. pouchetii and between DMS and P. pouchetii are all 0. 998. It is undoubted that P. pouchetii produced acrylic acid and DMS. The highest productivity of acrylic acid and DMS were 9. 76X10-8 μmol?cell-1 and 13. 09 ×10-8 μmol?cell-1, respectively, during P. pouchelii bloom. A cellular product, dimethylsulphonium propionate (DMSP), is decomposed into acrylic acid and DMS, and the formation of DMSP is probably from methionine which could be utilized by P. pouchelii.

Key words: Antarctica, acrylic acid, DMS, prouductivity, P. pouchetii