論文 - 詳細
| RRC ID | 37157 |
|---|---|
| 著者 | Giannelli L, Yamada H, Katsuda T, Yamaji H. |
| タイトル | Effects of temperature on the astaxanthin productivity and light harvesting characteristics of the green alga Haematococcus pluvialis. |
| ジャーナル | J Biosci Bioeng |
| Abstract |
The green alga Haematococcus pluvialis, which accumulates astaxanthin at an optimal temperature of 20°C, was cultivated under temperatures of 20°C, 23.5°C, 27°C, and 30.5°C, in order to assess the effects on algal metabolism during the growth phase. The culture growth rate declined with above-optimal increases in temperature, and the final maximum cell concentration at 30.5°C reached only 35% of that attained at 20°C. On the contrary, the biomass productivity was increased under all the high-temperature conditions, probably reflecting the metabolism switch from cell duplication to energy accumulation that is typically observed in algal cultures subjected to environmental stress. Moreover, an increase in the light-harvesting capability of the alga was observed by means of the total pigment balance and the photosynthesis-intensity (PI) curve measured under the different cultivation conditions. Cultures kept at higher temperatures were able to better harvest and utilize the impinging light due to photo-acclimation. Finally, the differences in the astaxanthin metabolism were elucidated by subjecting the cultures to nitrogen starvation at 20°C and 27°C. In the culture at 27°C, a 1.4-fold increase in the astaxanthin productivity was observed when compared to that at 20°C, and the latter required almost two-fold more energy for the astaxanthin production compared with the 27°C culture. |
| 巻・号 | 119(3) |
| ページ | 345-50 |
| 公開日 | 2015-3-1 |
| DOI | 10.1016/j.jbiosc.2014.09.002 |
| PII | S1389-1723(14)00337-5 |
| PMID | 25441445 |
| MeSH | Biomass Bioreactors* / economics Chlorophyta / cytology Chlorophyta / metabolism* Chlorophyta / radiation effects* Light* Nitrogen / metabolism Photosynthesis / radiation effects Temperature* Xanthophylls / biosynthesis |
| IF | 2.366 |
| 引用数 | 35 |
| WOS 分野 | FOOD SCIENCE & TECHNOLOGY BIOTECHNOLOGY & APPLIED MICROBIOLOGY |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | Patent(IFI CLAIMS) |
| 各媒体での言及数の合計 | 3 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| 藻類 | NIES-144 |