title: Effect of the ethylene precursor, 1-aminocyclopropane-1-carboxylic acid on different growth stages of Haematococcus pluvialis.
abstract: In this study, we explored the effects of ACC on other stages of H. pluvialis. Interestingly, even though ACC displayed a dose-dependent effect on astaxanthin production, it is evident that astaxanthin production could be facilitated whenever the cells were treated at the early red stage. The transcriptional levels of BKT, CHY, SOD, and CAT genes supported enhanced astaxanthin biosynthesis upon ACC treatment at the early red stage. The combinatorial synergistic effect of ACC and light intensity was also confirmed. Finally, two-step application of ACC at the vegetative phase to increase biomass production and at the early-red stage to promote astaxanthin biosynthesis was proposed to maximize the efficiency of ACC treatment.
authors: Department of Bioactive Material Sciences, Chonbuk National University, Republic of Korea.
authors: Thi-Thao
authors: TT
authors: Vo
authors: Department of Bioprocess Engineering, Chonbuk National University, Republic of Korea.
authors: Changsu
authors: C
authors: Lee
authors: Division of Environmental Science & Ecological Engineering, Korea University, Republic of Korea.
authors: Sang-Il
authors: SI
authors: Han
authors: Division of Environmental Science & Ecological Engineering, Korea University, Republic of Korea.
authors: Jee Young
authors: JY
authors: Kim
authors: Division of Environmental Science & Ecological Engineering, Korea University, Republic of Korea.
authors: Sok
authors: S
authors: Kim
authors: Division of Environmental Science & Ecological Engineering, Korea University, Republic of Korea. Electronic address: yechoi@korea.ac.kr.
authors: Yoon-E
authors: YE
authors: Choi
mesh_terms: D000598:Amino Acids, Cyclic / Q000494:pharmacology*; D018533:Biomass; D000460:Chlorophyta / Q000187:drug effects* / Q000254:growth & development*; D005030:Ethylenes; D008027:Light; D024341:Xanthophylls
chemical_list: D000598:Amino Acids, Cyclic; D005030:Ethylenes; D024341:Xanthophylls; C023863:1-aminocyclopropane-1-carboxylic acid; C005948:astaxanthine; C036216:ethylene
keywords: 1-Aminocyclopropane-1-carboxylic acid; Astaxanthin; Haematococcus pluvialis; Two-step applications