低温胁迫对军曹鱼幼鱼鳃组织抗氧化能力、细胞凋亡和组织结构的影响
Q178%S965.399; 军曹鱼(Rachycentron canadum)鳃组织对水温变化敏感.为探究低温胁迫对军曹鱼幼鱼鳃组织的影响,揭示该鱼应对低温胁迫的响应机制,实验设置2个低温胁迫组(18℃、21℃)和1个对照组(28℃),比较分析鳃组织在胁迫后第0、第4和第7天的氧化应激状态、细胞凋亡和组织结构情况.结果显示,低温胁迫下鳃组织超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GSH-Px)活性显著低于对照组(P<0.05),丙二醛(MDA)浓度显著高于对照组(P<0.05);低温胁迫组鳃组织凋亡相关基因bax、caspase-9、caspase-3、p53和m...
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Published in | 南方水产科学 Vol. 19; no. 3; pp. 68 - 77 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | Chinese |
Published |
广东恒兴饲料实业股份有限公司,广东湛江524094
01.06.2023
广东海洋大学水产学院,广东湛江524088%广东蓝粮种业有限公司,广东湛江524256%广东省水产动物病害防控与健康养殖重点实验室,广东湛江524088%广东海洋大学水产学院,广东湛江524088 |
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Online Access | Get full text |
ISSN | 2095-0780 |
DOI | 10.12131/20220227 |
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Abstract | Q178%S965.399; 军曹鱼(Rachycentron canadum)鳃组织对水温变化敏感.为探究低温胁迫对军曹鱼幼鱼鳃组织的影响,揭示该鱼应对低温胁迫的响应机制,实验设置2个低温胁迫组(18℃、21℃)和1个对照组(28℃),比较分析鳃组织在胁迫后第0、第4和第7天的氧化应激状态、细胞凋亡和组织结构情况.结果显示,低温胁迫下鳃组织超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GSH-Px)活性显著低于对照组(P<0.05),丙二醛(MDA)浓度显著高于对照组(P<0.05);低温胁迫组鳃组织凋亡相关基因bax、caspase-9、caspase-3、p53和mdm2表达量在第4和第7天时相较于对照组显著升高(P<0.05),bcl-2基因表达量显著降低(P<0.05);TUNEL检测显示低温组鳃组织细胞凋亡率升高;组织学分析表明低温胁迫下鳃组织出现了不同程度的鳃小片排列紊乱、基部增生、融合,上皮细胞和泌氯细胞空泡化等现象.研究表明,低温胁迫抑制了军曹鱼幼鱼的鳃组织抗氧化酶活性,造成氧化损伤,进一步诱导细胞凋亡,破坏鳃组织结构完整性. |
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AbstractList | Q178%S965.399; 军曹鱼(Rachycentron canadum)鳃组织对水温变化敏感.为探究低温胁迫对军曹鱼幼鱼鳃组织的影响,揭示该鱼应对低温胁迫的响应机制,实验设置2个低温胁迫组(18℃、21℃)和1个对照组(28℃),比较分析鳃组织在胁迫后第0、第4和第7天的氧化应激状态、细胞凋亡和组织结构情况.结果显示,低温胁迫下鳃组织超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GSH-Px)活性显著低于对照组(P<0.05),丙二醛(MDA)浓度显著高于对照组(P<0.05);低温胁迫组鳃组织凋亡相关基因bax、caspase-9、caspase-3、p53和mdm2表达量在第4和第7天时相较于对照组显著升高(P<0.05),bcl-2基因表达量显著降低(P<0.05);TUNEL检测显示低温组鳃组织细胞凋亡率升高;组织学分析表明低温胁迫下鳃组织出现了不同程度的鳃小片排列紊乱、基部增生、融合,上皮细胞和泌氯细胞空泡化等现象.研究表明,低温胁迫抑制了军曹鱼幼鱼的鳃组织抗氧化酶活性,造成氧化损伤,进一步诱导细胞凋亡,破坏鳃组织结构完整性. |
Author | 李豫 陈刚 马骞 温震威 谢瑞涛 蒋鑫涛 欧光海 黄鉴鹏 黄建盛 陈有铭 |
AuthorAffiliation | 广东海洋大学水产学院,广东湛江524088%广东蓝粮种业有限公司,广东湛江524256%广东省水产动物病害防控与健康养殖重点实验室,广东湛江524088%广东海洋大学水产学院,广东湛江524088;广东恒兴饲料实业股份有限公司,广东湛江524094 |
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Author_FL | CHEN Youming XIE Ruitao MA Qian HUANG Jianpeng OU Guanghai WEN Zhenwei JIANG Xintao HUANG Jiansheng LI Yu CHEN Gang |
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DocumentTitle_FL | Effect of low temperature stress on antioxidant stress,apoptosis and histological structure of gills in cobia(Rachycentron canadum) |
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Keywords | 细胞凋亡 军曹鱼 鳃 氧化应激 低温胁迫 组织结构 |
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Title | 低温胁迫对军曹鱼幼鱼鳃组织抗氧化能力、细胞凋亡和组织结构的影响 |
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