| 水华鱼腥藻厚壁孢子的诱导效应研究 |
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| 引用本文： | 万旗东,沈健英.水华鱼腥藻厚壁孢子的诱导效应研究[J].上海农业学报,2011,27(2). |
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| 作者姓名： | 万旗东 沈健英 |
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| 作者单位： | 上海交通大学农业与生物学院,上海,200240 |
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| 基金项目： | 上海市闵行区农委合作研究项目(2010MHZ015)资助 |
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| 摘 要： | 采用显微计数法研究不同pH、营养成分、保存温度对水华鱼腥藻厚壁孢子的诱导效应。结果表明:相比对照组pH 8(厚壁孢子的最高含量为2.12%),中性和略偏酸性的培养液更容易诱导水华鱼腥藻厚壁孢子的形成,在pH 6和pH 7时,厚壁孢子的最高含量为4.58%和6.80%。营养物质K_2HPO_4、KNO_3、蔗糖、葡萄糖和对照组诱导的厚壁孢子数呈先上升后下降的规律,其中蔗糖和葡萄糖的诱导率分别达到15.29%和10.83%,两处理均可显著诱导厚壁孢子形成。4℃低温处理也可诱导大量厚壁孢子生成,其含量达6.13%。
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| 关 键 词： | 水华鱼腥藻 厚壁孢子 pH 营养成分 保存温度 |
Study on the effect of inducing Anabaena flos-aquae akinetes |
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| WAN Qi-dong,SHEN Jian-ying.Study on the effect of inducing Anabaena flos-aquae akinetes[J].Acta Agriculturae Shanghai,2011,27(2). |
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| Authors: | WAN Qi-dong SHEN Jian-ying |
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| Institution: | WAN Qi-dong,SHEN Jian-ying~* (School of Agriculture and Biology,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | The effects of pH,nutrients,and temperature on the formation of Anabaena flos-aquae akinetes were studied by microscopic count.The results revealed that the akinetes could be formed more easily in a neutral or somewhat acidic culture fluid than the control at pH 8,and at pH 6 and pH 7 the akinete content could be up to 4.58%and 6.80%,respectively.The number of the akinetes induced by K_2HPO_4,KNO_3,saccharose and glucose nutritive materials and by the control presented a marked regularity of first increasin... |
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| Keywords: | Anabaena flos-aquae Akinete pH Nutrients Temperature |
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