Characterization of cyanobacterial β-carotene ketolase and hydroxylase genes inEscherichia coli, and their application for astaxanthin biosynthesis

2009 ◽  
Vol 103 (5) ◽  
pp. 944-955 ◽  
Author(s):  
Mark A. Scaife ◽  
Adam M. Burja ◽  
Phillip C. Wright
2014 ◽  
Vol 61 (6) ◽  
pp. 637-645 ◽  
Author(s):  
Jiang Wu ◽  
Jing Ji ◽  
Gang Wang ◽  
Zhaodi Li ◽  
Jinjin Diao ◽  
...  

2020 ◽  
Vol 7 ◽  
Author(s):  
Xupeng Yuan ◽  
Jiahao Yan ◽  
Ruizhi Hu ◽  
Yanli Li ◽  
Ying Wang ◽  
...  

Recent evidences suggest that gut microbiota plays an important role in regulating physiological and metabolic activities of pregnant sows, and β-carotene has a potentially positive effect on reproduction, but the impact of β-carotene on gut microbiota in pregnant sows remains unknown. This study aimed to explore the effect and mechanisms of β-carotene on the reproductive performance of sows from the aspect of gut microbiota. A total of 48 hybrid pregnant sows (Landrace × Yorkshire) with similar parity were randomly allocated into three groups (n = 16) and fed with a basal diet or a diet containing 30 or 90 mg/kg of β-carotene from day 90 of gestation until parturition. Dietary supplementation of 30 or 90 mg/kg β-carotene increased the number of live birth to 11.82 ± 1.54 and 12.29 ± 2.09, respectively, while the control group was 11.00 ± 1.41 (P = 0.201). Moreover, β-carotene increased significantly the serum nitric oxide (NO) level and glutathione peroxidase (GSH-Px) activity (P < 0.05). Characterization of fecal microbiota revealed that 90 mg/kg β-carotene increased the diversity of the gut flora (P < 0.05). In particular, β-carotene decreased the relative abundance of Firmicutes including Lachnospiraceae AC2044 group, Lachnospiraceae NK4B4 group and Ruminococcaceae UCG-008, but enriched Proteobacteria including Bilophila and Sutterella, and Actinobacteria including Corynebacterium and Corynebacterium 1 which are related to NO synthesis. These data demonstrated that dietary supplementation of β-carotene may increase antioxidant enzyme activity and NO, an important vasodilator to promote the neonatal blood circulation, through regulating gut microbiota in sows.


Biochemistry ◽  
1997 ◽  
Vol 36 (23) ◽  
pp. 7109-7113 ◽  
Author(s):  
Dolly Foti ◽  
Bruno Lo Curto ◽  
Giovanni Cuzzocrea ◽  
M. Elena Stroppolo ◽  
Francesca Polizio ◽  
...  

2007 ◽  
Vol 275 (1) ◽  
pp. 168-174 ◽  
Author(s):  
Hao Zhang ◽  
Lu Lin ◽  
Chi Zeng ◽  
Ping Shen ◽  
Yu-Ping Huang

2015 ◽  
Vol 94 (4) ◽  
pp. 621-627 ◽  
Author(s):  
T.S. Rocha ◽  
C. Tramuta ◽  
S. Catania ◽  
A. Matucci ◽  
M.G. Giuffrida ◽  
...  

2011 ◽  
Vol 75 (1) ◽  
pp. 159-161 ◽  
Author(s):  
Ryota HATTORI ◽  
Mayumi MATSUSHITA-MORITA ◽  
Junichiro MARUI ◽  
Sawaki TADA ◽  
Satoshi SUZUKI ◽  
...  
Keyword(s):  

1985 ◽  
Vol 12 (6) ◽  
pp. 315-319 ◽  
Author(s):  
Efrat Meir ◽  
Ezra Yagil
Keyword(s):  

1996 ◽  
Vol 8 (2) ◽  
pp. 137-144 ◽  
Author(s):  
Sanna-Maria Käkönen ◽  
Jukka Hellman ◽  
Kim Pettersson ◽  
Timo Lövgren ◽  
Matti Karp

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