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Zhang N, Deng C, Hong T, Ren J, Zhang Y, Li F, Dong Z, Hu Z, Huang X, Li C. Transcriptome Analysis Revealed the Advantages of Room Temperature Preservation of Concentrated Oocystis borgei Cultures for Use in Aquaculture. Int J Mol Sci 2023; 24:16225. [PMID: 38003417 PMCID: PMC10671278 DOI: 10.3390/ijms242216225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Oocystis borgei, a microalgae species employed for regulating the quality of aquaculture water, demonstrates the capacity to adsorb noxious substances, curtail the growth of detrimental bacteria, and outcompete blooming cyanobacteria. It can be concentrated by natural sedimentation and stored at room temperature, making it costless and simple to transport and use. To study the mechanism of adaptation to room temperature preservation, O. borgei was concentrated (1.19 × 107-1.21 × 107 cell/mL) and stored for 50 days at low (5 °C, LT), normal (25 °C, NT), and high (35 °C, HT) temperatures, respectively. Polysaccharide content, lipid content, cell survival, and resuscitation were evaluated. RNA-Seq was also used to examine how concentrated O. borgei responded to temperature. During storage, there was an increase in polysaccharide content and a decrease in lipid content, with both being significantly upregulated in the LT and HT groups. Survival and cell density were highest in the NT group. The RNA-Seq analysis revealed extensive differences in transcript levels. ATP synthesis was inhibited in the LT group due to the reduced expression of PsaD, PsaE, PsaF, PsaK, and PsaL. Under HT, the formation of reactive oxygen species (ROS) was facilitated by low levels of redox-related genes (nirA) and high levels of oxidative genes (gdhA, glna, and glts). The findings suggest that storing concentrated O. borgei at room temperature is optimal for microalgae preservation, enhancing theoretical research in this field. Our study provides further theoretical and practical support for the development of O. borgei as a live ecological preparation for aquaculture microalgae ecology management.
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Affiliation(s)
- Ning Zhang
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
| | - Chengcheng Deng
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
| | - Ting Hong
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
| | - Jiajia Ren
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
| | - Yulei Zhang
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
| | - Feng Li
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
| | - Zhongdian Dong
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
- Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhangxi Hu
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
| | - Xianghu Huang
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
| | - Changling Li
- Lab of Algae Resource Development and Aquaculture Environment Ecological Restoration, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (N.Z.); (C.D.); (T.H.); (J.R.); (Y.Z.); (F.L.); (Z.D.); (Z.H.); (X.H.)
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