极地研究 ›› 1995, Vol. 6 ›› Issue (1-English): 73-78.

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The pigmental composition and the absorption spectral analysis of Ulothrix sp. and benthic diatoms in the intertidal zone of Great Wall Station, Antarctica

 Mao Xinghua, Li Baohua and Huang Fengpeng   

  1. First Institute of Oceanography, SOA, Qingdao 266003, China
  • 出版日期:1945-03-30 发布日期:1945-03-30
  • 通讯作者: Mao Xinghua

The pigmental composition and the absorption spectral analysis of Ulothrix sp. and benthic diatoms in the intertidal zone of Great Wall Station, Antarctica

Mao Xinghua, Li Baohua and Huang Fengpeng   

  1. First Institute of Oceanography, SOA, Qingdao 266003, China
  • Online:1945-03-30 Published:1945-03-30
  • Contact: Mao Xinghua

摘要:

This paper reports the results of the absorption spectral analysis of Ulothrix sp. attached to the rocks from the intertidal zone in front of Great Wall Station,Antarctica in February 1989,and the benthic diatoms growing on small stones and on the edge of swamps of that zone.Six kinds of pigments were separated and identified in benthic diatoms.They are carotene, chlorophyll-a, fucoxanthin, chlorophyin, neoxanthin and chlorophyll-c. Nine kinds of pigments were identified in Ulothrix sp.. They are carotinoid, pheophytin, chlorophyll-a, -b, chlorophyllin, chlorophyllide-a, neoxanthin, chlorophyll-c and pheophytin-c. The intertidal benthic diatoms and Ulothrix sp. have specific absorption spectra and there are also marked differences in the composition of algal pigments they contain. Since the pigments of marine algae show differences in their absorption spectra, the absorption spectrum can be used to identify the species of marine algae.

关键词: Antarctica, Great Wall Station, intertidal zone, pigment, absorption spectrum

Abstract:

This paper reports the results of the absorption spectral analysis of Ulothrix sp. attached to the rocks from the intertidal zone in front of Great Wall Station,Antarctica in February 1989,and the benthic diatoms growing on small stones and on the edge of swamps of that zone.Six kinds of pigments were separated and identified in benthic diatoms.They are carotene, chlorophyll-a, fucoxanthin, chlorophyin, neoxanthin and chlorophyll-c. Nine kinds of pigments were identified in Ulothrix sp.. They are carotinoid, pheophytin, chlorophyll-a, -b, chlorophyllin, chlorophyllide-a, neoxanthin, chlorophyll-c and pheophytin-c. The intertidal benthic diatoms and Ulothrix sp. have specific absorption spectra and there are also marked differences in the composition of algal pigments they contain. Since the pigments of marine algae show differences in their absorption spectra, the absorption spectrum can be used to identify the species of marine algae.

Key words: Antarctica, Great Wall Station, intertidal zone, pigment, absorption spectrum