The effect of pH on both spectral types of R-phycoerythrin

Pan Zhongzheng; Zhou Baicheng; Zeng Chengkui; C. K. Tseng

doi:10.1007/BF02848525

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The effect of pH on both spectral types of R-phycoerythrin

OriginalPaper | Updated：2023-05-16

- The effect of pH on both spectral types of R-phycoerythrin
- The effect of pH on both spectral types of R-phycoerythrin
- 海洋湖沼学报（英文） 1987年5卷第1期页码：73-79
- Affiliations：
  
  Institute of Oceanology
- Author bio：
- Funds：
  
  Contribution No. 1333 from the Institute of Oceanology, Academic Sinica.
- DOI：10.1007/BF02848525
  中图分类号：
- 纸质出版：1987
- Accepted：
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The effect of pH on both spectral types of R-phycoerythrin[J]. 海洋湖沼学报（英文）, 1987,5(1):73-79.

Zhongzheng, P., Baicheng, Z., Chengkui, Z. et al. The effect of pH on both spectral types of R-phycoerythrin., Chin. J. Ocean. Limnol. 5, 73–79 (1987). https://doi.org/10.1007/BF02848525
The effect of pH on both spectral types of R-phycoerythrin[J]. 海洋湖沼学报（英文）, 1987,5(1):73-79. DOI： 10.1007/BF02848525.

Zhongzheng, P., Baicheng, Z., Chengkui, Z. et al. The effect of pH on both spectral types of R-phycoerythrin., Chin. J. Ocean. Limnol. 5, 73–79 (1987). https://doi.org/10.1007/BF02848525 DOI：

摘要

Abstract

There are two spectral types of R-phycoerythrin (RPE) in red algae. One is the triple peak type RPE with absorption maxima at 498

540 and 565 nm. The other is the double peak type RPE with absorption maxima at 498 and 565 nm

and an absorption shoulder at 540 nm. The former is present only in higher classes of the more advanced Florideophyceae

the latter occurs chiefly in the more primitive Bangiophyceae. When these two types of RPE are treated with buffer solutions with a broad pH range from 2.0 to 11.0

their absorption and fluorescence spectra remain unchanged within the range adjacent to neutral pH. At pH values higher than 9.6

the absorption and fluorescence spectra of triple peak type RPE still remain stable

but the absorption spectra of double peak type RPE produce gradually a protrusion similar to an absorption peak at about 540 nm. This phennomenon shows that there are certain differences in structure between these two types of RPE. Both types of RPE are naturally occurring products showing systematic developmental meaning in red algae.

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references

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