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Position: Home > Articles > Study on the effect of inducing Anabaena flos-aquae akinetes Acta Agriculturae Shanghai 2011,27 (2) 83-87

水华鱼腥藻厚壁孢子的诱导效应研究

作  者:
万旗东;沈健英
单  位:
上海交通大学农业与生物学院
关键词:
水华鱼腥藻;厚壁孢子;pH;营养成分;保存温度
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%。
译  名:
Study on the effect of inducing Anabaena flos-aquae akinetes
作  者:
WAN Qi-dong,SHEN Jian-ying~* (School of Agriculture and Biology,Shanghai Jiaotong University,Shanghai 200240,China)
关键词:
Anabaena flos-aquae;;Akinete;;pH;;Nutrients;;Temperature
摘  要:
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 increasing and then decreasing.Both saccharose and glucose treatments could significantly induce the akinete formation,with the inductivity being 15.29%and 10.83%, respectively.At 4℃low temperature a large number of the akinetes could still be formed,and the akinete content could reach 6.13%.

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