| 外源过氧化氢对蓝藻UV-B屏蔽物质的影响 |
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| 引用本文： | 薛林贵,李琳,赵燕,张红光,王鑫.外源过氧化氢对蓝藻UV-B屏蔽物质的影响[J].中兽医医药杂志,2013,32(3):5-10. |
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| 作者姓名： | 薛林贵 李琳 赵燕 张红光 王鑫 |
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| 作者单位： | 兰州交通大学化学与生物工程学院,甘肃兰州,730070 |
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| 基金项目： | 国家自然科学基金项目，教育部长江学者和创新团队发展计划项目 |
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| 摘 要： | 以青海湖粘球藻(Gloeocapsa)作为研究材料,通过生物化学和对比分析的方法,研究外源过氧化氢(H2O2)(0.5 mmol/L)对长期增强UV-B(2.4 W/m2)胁迫下蓝藻UV-B屏障物质的影响。结果显示,外源过氧化氢对藻体内的UV-B屏蔽物质叶绿素a、类胡萝卜素、伪枝藻素、藻胆蛋白以及MAAs等的合成和积累产生负效应,进一步加剧了UV-B对藻体的损害,同时也表明H2O2能够作为信号分子在蓝藻对逆境胁迫的适应过程中发挥作用。
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| 关 键 词： | 粘球藻 UV-B胁迫 过氧化氢 屏蔽物质 |
Effect of exogenous H2O2 on UV-B shielding material of Cyanobacteria |
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| XUE Lin-gui
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LI Lin
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ZHAO Yan
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ZHANG Hong-guang
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WANG Xin.Effect of exogenous H2O2 on UV-B shielding material of Cyanobacteria[J].Journal of Traditional Chinese Veterinary Medicine,2013,32(3):5-10. |
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| Authors: | XUE Lin-gui LI Lin ZHAO Yan ZHANG Hong-guang WANG Xin |
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| Institution: | (College of Chemistry and Bioengineering,Lanzhou Jiaotong University,Lanzhou Gansu 730070,China) |
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| Abstract: | Through Biochemistry methods and comparative analysis,Goeocapsa from Qinghai Lake was investigated to study the effect of exogenous hydrogen peroxide（H 2 O 2,0.5 mmol/L）on shielding coloring matter of Cyanobacteria exposed to enhanced UV-B stress（2.4 W/m 2）.The results showed that H 2 O 2 present negative effect on the synthesis and accumulation of chlorophyll a,carotinoid,scytonemin,phycobfliproreins and mycosporine-like amino acids（MAAs）.H 2 O 2 could aggravate the damage on algae under UV-B stress.It indicated that as a signal molecule,H 2 O 2 might play a role in the process of algae to adapt to adversity stress. |
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| Keywords: | Gloeocapsa UV-B stress hydrogen peroxide（H2O2） shielding coloring matter |
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