Effects of Carbonate Alkalinity on Antioxidants, Immunity and Intestinal Flora of <i>Penaeus vannamei</i>

The purpose of this study was to investigate the physiological and biochemical changes of the hepatopancreas and intestinal microbial structure of <i>Penaeus vannamei</i> under various levels of carbonate alkalinity stress. After <i>Penaeus vannamei</i> (body length 14.24 ± 2...

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Main Authors: Chuang Gao, Zhonghong Li, Bo Ma, Rantao Zuo, Xudong Shen, Mingkang Chen, Chuanqi Ren, Wenjun Zheng, Zhonglu Cai, Jiaxing Li, Shuang Li
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Fishes
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Online Access:https://www.mdpi.com/2410-3888/10/1/12
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author Chuang Gao
Zhonghong Li
Bo Ma
Rantao Zuo
Xudong Shen
Mingkang Chen
Chuanqi Ren
Wenjun Zheng
Zhonglu Cai
Jiaxing Li
Shuang Li
author_facet Chuang Gao
Zhonghong Li
Bo Ma
Rantao Zuo
Xudong Shen
Mingkang Chen
Chuanqi Ren
Wenjun Zheng
Zhonglu Cai
Jiaxing Li
Shuang Li
author_sort Chuang Gao
collection DOAJ
description The purpose of this study was to investigate the physiological and biochemical changes of the hepatopancreas and intestinal microbial structure of <i>Penaeus vannamei</i> under various levels of carbonate alkalinity stress. After <i>Penaeus vannamei</i> (body length 14.24 ± 2.13 cm, body weight 26.31 ± 3.26 g) was subjected to 96 h carbonate alkalinity stress, the alkalinity stress levels were E8 (8 mmol/L), E18 (18 mmol/L) and E28 (28 mmol/L), respectively. The activity of antioxidant enzymes was determined by enzyme markers, and then the intestinal microorganisms of <i>Penaeus vannamei</i> were analyzed by high-throughput sequencing technology. The results showed that, under the stress of high carbonate alkalinity, the mortality rate of <i>Penaeus vannamei</i> was as high as 75%, and hepatopancreas cells showed obvious deformation, abnormal nuclear shapes, and serious cell vacuolation. Under high carbonate alkalinity stress, superoxide dismutase activity, catalase activity and glutathione peroxidase activity in the <i>Penaeus vannamei</i> hepatopancreas were significantly lower than those in control group (<i>p</i> < 0.05), and malondialdehyde content was significantly lower than that in the control group (<i>p</i> < 0.05). Alkaline phosphatase activity in the experimental group was significantly different from that in the control group (<i>p</i> < 0.05). Moreover, the 16SrDNA high-throughput sequencing results showed that the intestinal abundance of Proteobacteria in <i>Penaeus vannamei</i> was significantly decreased (<i>p</i> < 0.05) under high carbonate alkalinity stress, and the abundance of Bacteroides was significantly increased (<i>p</i> < 0.05). At the genus level, the abundance of <i>Chrysobacteria</i> was significantly increased (<i>p</i> < 0.05). The functional prediction results of COG and KEGG showed that the functional abundance of RNA polymerase sigma-70 factor is direct bacterial or plastid core RNA polymerase and is specific to promoter elements that are situated 10 and 35 base-pairs upstream of transcription-initiation points—in the high carbonate alkalinity treatment group, this was higher than that in the control group. The functional abundance of signal transduction histidine kinase was lower than that of the control group. The results of this study not only indicated that <i>Penaeus vannamei</i> cell structure would change and mortality would increase under high carbonate alkalinity culture environment, but they also analyzed the changes of the intestinal microbial structure under carbonate alkalinity stress. This study could provide theoretical reference for <i>Penaeus vannamei</i> saline–alkali land culture.
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spelling doaj-art-ddb3495765d14ac99776b406972f4adc2025-01-24T13:32:26ZengMDPI AGFishes2410-38882024-12-011011210.3390/fishes10010012Effects of Carbonate Alkalinity on Antioxidants, Immunity and Intestinal Flora of <i>Penaeus vannamei</i>Chuang Gao0Zhonghong Li1Bo Ma2Rantao Zuo3Xudong Shen4Mingkang Chen5Chuanqi Ren6Wenjun Zheng7Zhonglu Cai8Jiaxing Li9Shuang Li10Yingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaYingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaKey Laboratory of Cold Water Fish Germplasm Resources and Multiplication and Cultivation of Heilongjiang Province, Heilongjiang River Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, ChinaKey Laboratory of Mariculture & Stock Enhancement in North China’s Sea Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian 116023, ChinaYingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaYingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaYingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaYingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaYingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaYingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaYingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou 115000, ChinaThe purpose of this study was to investigate the physiological and biochemical changes of the hepatopancreas and intestinal microbial structure of <i>Penaeus vannamei</i> under various levels of carbonate alkalinity stress. After <i>Penaeus vannamei</i> (body length 14.24 ± 2.13 cm, body weight 26.31 ± 3.26 g) was subjected to 96 h carbonate alkalinity stress, the alkalinity stress levels were E8 (8 mmol/L), E18 (18 mmol/L) and E28 (28 mmol/L), respectively. The activity of antioxidant enzymes was determined by enzyme markers, and then the intestinal microorganisms of <i>Penaeus vannamei</i> were analyzed by high-throughput sequencing technology. The results showed that, under the stress of high carbonate alkalinity, the mortality rate of <i>Penaeus vannamei</i> was as high as 75%, and hepatopancreas cells showed obvious deformation, abnormal nuclear shapes, and serious cell vacuolation. Under high carbonate alkalinity stress, superoxide dismutase activity, catalase activity and glutathione peroxidase activity in the <i>Penaeus vannamei</i> hepatopancreas were significantly lower than those in control group (<i>p</i> < 0.05), and malondialdehyde content was significantly lower than that in the control group (<i>p</i> < 0.05). Alkaline phosphatase activity in the experimental group was significantly different from that in the control group (<i>p</i> < 0.05). Moreover, the 16SrDNA high-throughput sequencing results showed that the intestinal abundance of Proteobacteria in <i>Penaeus vannamei</i> was significantly decreased (<i>p</i> < 0.05) under high carbonate alkalinity stress, and the abundance of Bacteroides was significantly increased (<i>p</i> < 0.05). At the genus level, the abundance of <i>Chrysobacteria</i> was significantly increased (<i>p</i> < 0.05). The functional prediction results of COG and KEGG showed that the functional abundance of RNA polymerase sigma-70 factor is direct bacterial or plastid core RNA polymerase and is specific to promoter elements that are situated 10 and 35 base-pairs upstream of transcription-initiation points—in the high carbonate alkalinity treatment group, this was higher than that in the control group. The functional abundance of signal transduction histidine kinase was lower than that of the control group. The results of this study not only indicated that <i>Penaeus vannamei</i> cell structure would change and mortality would increase under high carbonate alkalinity culture environment, but they also analyzed the changes of the intestinal microbial structure under carbonate alkalinity stress. This study could provide theoretical reference for <i>Penaeus vannamei</i> saline–alkali land culture.https://www.mdpi.com/2410-3888/10/1/12carbonate alkalinity<i>Penaeus vannamei</i>antioxidant enzyme activity16SrDNA high-throughput sequencing
spellingShingle Chuang Gao
Zhonghong Li
Bo Ma
Rantao Zuo
Xudong Shen
Mingkang Chen
Chuanqi Ren
Wenjun Zheng
Zhonglu Cai
Jiaxing Li
Shuang Li
Effects of Carbonate Alkalinity on Antioxidants, Immunity and Intestinal Flora of <i>Penaeus vannamei</i>
Fishes
carbonate alkalinity
<i>Penaeus vannamei</i>
antioxidant enzyme activity
16SrDNA high-throughput sequencing
title Effects of Carbonate Alkalinity on Antioxidants, Immunity and Intestinal Flora of <i>Penaeus vannamei</i>
title_full Effects of Carbonate Alkalinity on Antioxidants, Immunity and Intestinal Flora of <i>Penaeus vannamei</i>
title_fullStr Effects of Carbonate Alkalinity on Antioxidants, Immunity and Intestinal Flora of <i>Penaeus vannamei</i>
title_full_unstemmed Effects of Carbonate Alkalinity on Antioxidants, Immunity and Intestinal Flora of <i>Penaeus vannamei</i>
title_short Effects of Carbonate Alkalinity on Antioxidants, Immunity and Intestinal Flora of <i>Penaeus vannamei</i>
title_sort effects of carbonate alkalinity on antioxidants immunity and intestinal flora of i penaeus vannamei i
topic carbonate alkalinity
<i>Penaeus vannamei</i>
antioxidant enzyme activity
16SrDNA high-throughput sequencing
url https://www.mdpi.com/2410-3888/10/1/12
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