硼中子俘获技术对普通小球藻生长的影响  

Effects of boron neutron capture on growth of Chlorella vulgaris

作　　者：郝昕[1] 谭志新[1] 童永彭[1] 张永夏[2] 罗奇[1] 李西妮[2] 陈琳琳[2] 张瑶[2] 

机构地区：[1]深圳大学物理科学与技术学院,深圳518060 [2]深圳大学生命科学学院,深圳518060

出　　处：《辐射研究与辐射工艺学报》2014年第6期39-44,共6页Journal of Radiation Research and Radiation Processing

基　　金：国家自然科学基金面上项目(11375117);广东省自然科学基金(S2012040007496);深圳市城管局科研项目(201210)资助

摘　　要：利用硼中子俘获技术对普通小球藻进行辐照,研究辐照中子通量和时间对小球藻生长效应的影响。结果发现,经过适当的中子通量(7.5×108-7.5×109 cm-2?s-1)和时间(30-60 s)的辐照,小球藻在多代以后的生长速率、叶绿素荧光动力学参数Fv/Fm、产量、叶绿素含量和脂肪酸含量均显著提高,但是蛋白质含量显著降低。由此表明硼中子俘获技术对小球藻可遗传物质产生了影响,对于选育高产藻株具有促进作用。Boron neutron capture was used to treat productive strains of Cklorella and the effects of neutron flux together with radiation time on growth of Chlorella vulgaris were studied. The results showed that the growth rates, chlorophyll fluorescence parameters Fv/Fm, yield, Chlorophyll content, and fatty acid content increased significantly with suitable neutron flux（7.5×10^8-7.5×10^9cm^-2·s^-1） and radiation time（30-60 s）, while the protein content significantly decreased. The neutron irradiation could affect the genetic material of Chlorella, which has a positive effect on selecting productive Chlorella strains.

关 键 词：硼中子俘获 普通小球藻 辐照效应 

分 类 号：Q691[生物学—生物物理学] TL99[核科学技术—核技术及应用]