Photobleaching of coralline algae correlated to proton generation in calcification
碩士 === 崑山科技大學 === 機械工程研究所 === 96 === The increasing acidity of ocean resulting from CO2 emission poses a great threat to the marine ecosystem. Coralline algae along with other calcifying organisms, including coral and mollusk, are especially vulnerable to acid environment. Coralline algae play an im...
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| Format: | Others |
| Language: | zh-TW |
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2008
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| Online Access: | http://ndltd.ncl.edu.tw/handle/hww92a |
| Summary: | 碩士 === 崑山科技大學 === 機械工程研究所 === 96 === The increasing acidity of ocean resulting from CO2 emission poses a great threat to the marine ecosystem. Coralline algae along with other calcifying organisms, including coral and mollusk, are especially vulnerable to acid environment. Coralline algae play an important in marine ecosystem as they are often responsible for laying settlement substrate invertebrates. Calcification is widespread among biota, this ability may originate from the desire to extrude calcium ion from inside their cells to avoid problematic precipitation of calcium phosphate.
It is proposed that fluorescence emission from coralline algae can be used as an indicator of their fitness and their calcifying ability. The fluorescent emission is excited with a 420-490 nm source and examined with a 515 long pass filter. The ATP production strategy flow in coralline algae, using phycoerythrin as light capturing pigment, differs from those of using chlorophyll. Calcification which also generates protons is closely connected to photosynthesis as protons may be important in photosynthesis. The calcium carbonate also provides necessary turgor pressure. Investigation into coralline algae can generate valuable knowledge on the process and functions of biocalcification.
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