L-Carnitine supplementation improved population growth, photosynthetic pigment synthesis and antioxidant activity of marine Chlorella sp.

High nutritive microalgae is a key factor that affecting the live feeds nutritional value and subsequently fish fry quality. We evaluated the effect of l-carnitine supplementation level on the population growth, photosynthetic pigment biosynthesis, and antioxidant capability of the pigment-protein c...

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Main Authors: Sen Wang, Yu-ke Chen, Abdallah Ghonimy, Ting Yu, Yong-sheng Gao, Zhen-chao Wu, Qiu-ju Wang, Dong-ming Zhang
Format: Article
Language:English
Published: Elsevier 2020-07-01
Series:Aquaculture Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352513420300909
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author Sen Wang
Yu-ke Chen
Abdallah Ghonimy
Ting Yu
Yong-sheng Gao
Zhen-chao Wu
Qiu-ju Wang
Dong-ming Zhang
author_facet Sen Wang
Yu-ke Chen
Abdallah Ghonimy
Ting Yu
Yong-sheng Gao
Zhen-chao Wu
Qiu-ju Wang
Dong-ming Zhang
author_sort Sen Wang
collection DOAJ
description High nutritive microalgae is a key factor that affecting the live feeds nutritional value and subsequently fish fry quality. We evaluated the effect of l-carnitine supplementation level on the population growth, photosynthetic pigment biosynthesis, and antioxidant capability of the pigment-protein complexes in the marine Chlorella sp. Five different l-carnitine levels (0, 5, 50, 100, and 200 mg L−1) were supplemented in the microalgae media for 10 days. The results demonstrated that l-carnitine increased the population density and specific growth rate in LC 5 (P < 0.05). While the β-carotene and iron contents were elevated in LC 5 and LC 50 (P < 0.05). Apart from, chlorophyll a, chlorophyll b, and magnesium contents were higher in the LC 5 (P < 0.05). While LC 5 had higher metal chelation in pigment-protein complexes (P < 0.05). Meanwhile, psy and chld gene expressions were up-regulated in the LC 5 and LC 50 (P < 0.05). Taken together, LC 5 and LC 50 could improve the population growth, pigment synthesis, antioxidant capacity and up-regulate the relative expression levels of photosynthetic pigment synthesis genes in marine Chlorella sp. Therefore, l-carnitine has comprehensive effects on algae production.
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spelling doaj.art-9cc9af6cb6464cef828333f50337e75c2022-12-21T19:26:44ZengElsevierAquaculture Reports2352-51342020-07-0117100394L-Carnitine supplementation improved population growth, photosynthetic pigment synthesis and antioxidant activity of marine Chlorella sp.Sen Wang0Yu-ke Chen1Abdallah Ghonimy2Ting Yu3Yong-sheng Gao4Zhen-chao Wu5Qiu-ju Wang6Dong-ming Zhang7College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China; Corresponding authors at: College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China; Fish Farming and Technology Institute, Suez Canal University, Ismailia 41522, EgyptCollege of Life Science, Jilin Agricultural University, Changchun 130118, ChinaCollege of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Life Science, Jilin Agricultural University, Changchun 130118, ChinaCollege of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, ChinaCollege of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China; College of Life Science, Tonghua Normal University, Tonghua 134002, China; Corresponding authors at: College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.High nutritive microalgae is a key factor that affecting the live feeds nutritional value and subsequently fish fry quality. We evaluated the effect of l-carnitine supplementation level on the population growth, photosynthetic pigment biosynthesis, and antioxidant capability of the pigment-protein complexes in the marine Chlorella sp. Five different l-carnitine levels (0, 5, 50, 100, and 200 mg L−1) were supplemented in the microalgae media for 10 days. The results demonstrated that l-carnitine increased the population density and specific growth rate in LC 5 (P < 0.05). While the β-carotene and iron contents were elevated in LC 5 and LC 50 (P < 0.05). Apart from, chlorophyll a, chlorophyll b, and magnesium contents were higher in the LC 5 (P < 0.05). While LC 5 had higher metal chelation in pigment-protein complexes (P < 0.05). Meanwhile, psy and chld gene expressions were up-regulated in the LC 5 and LC 50 (P < 0.05). Taken together, LC 5 and LC 50 could improve the population growth, pigment synthesis, antioxidant capacity and up-regulate the relative expression levels of photosynthetic pigment synthesis genes in marine Chlorella sp. Therefore, l-carnitine has comprehensive effects on algae production.http://www.sciencedirect.com/science/article/pii/S2352513420300909Antioxidant activityL-carnitineMarine Chlorella sp.Photosynthetic pigmentPopulation growth
spellingShingle Sen Wang
Yu-ke Chen
Abdallah Ghonimy
Ting Yu
Yong-sheng Gao
Zhen-chao Wu
Qiu-ju Wang
Dong-ming Zhang
L-Carnitine supplementation improved population growth, photosynthetic pigment synthesis and antioxidant activity of marine Chlorella sp.
Aquaculture Reports
Antioxidant activity
L-carnitine
Marine Chlorella sp.
Photosynthetic pigment
Population growth
title L-Carnitine supplementation improved population growth, photosynthetic pigment synthesis and antioxidant activity of marine Chlorella sp.
title_full L-Carnitine supplementation improved population growth, photosynthetic pigment synthesis and antioxidant activity of marine Chlorella sp.
title_fullStr L-Carnitine supplementation improved population growth, photosynthetic pigment synthesis and antioxidant activity of marine Chlorella sp.
title_full_unstemmed L-Carnitine supplementation improved population growth, photosynthetic pigment synthesis and antioxidant activity of marine Chlorella sp.
title_short L-Carnitine supplementation improved population growth, photosynthetic pigment synthesis and antioxidant activity of marine Chlorella sp.
title_sort l carnitine supplementation improved population growth photosynthetic pigment synthesis and antioxidant activity of marine chlorella sp
topic Antioxidant activity
L-carnitine
Marine Chlorella sp.
Photosynthetic pigment
Population growth
url http://www.sciencedirect.com/science/article/pii/S2352513420300909
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