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陈德辉, 刘永定, 宋立荣. 蓖齿眼子菜对栅藻和微囊藻的他感作用及其参数[J]. 水生生物学报, 2004, 28(2): 163-168.
引用本文: 陈德辉, 刘永定, 宋立荣. 蓖齿眼子菜对栅藻和微囊藻的他感作用及其参数[J]. 水生生物学报, 2004, 28(2): 163-168.
CHEN De-Hui, LIU Yong-Ding, SONG Li-Rong. THE ALLELOPATHY OF MACROPHYTE POTAMOGETON PECTINATUS L ON CHLOROPHYTA(SCENEDESMUS OBLIQUUS)AND CYANOBACTERIA(MICROCYSTIS AERUGINOSA)AND CALCULATION OF ALLELOPATHIC PARAMETER[J]. ACTA HYDROBIOLOGICA SINICA, 2004, 28(2): 163-168.
Citation: CHEN De-Hui, LIU Yong-Ding, SONG Li-Rong. THE ALLELOPATHY OF MACROPHYTE POTAMOGETON PECTINATUS L ON CHLOROPHYTA(SCENEDESMUS OBLIQUUS)AND CYANOBACTERIA(MICROCYSTIS AERUGINOSA)AND CALCULATION OF ALLELOPATHIC PARAMETER[J]. ACTA HYDROBIOLOGICA SINICA, 2004, 28(2): 163-168.

蓖齿眼子菜对栅藻和微囊藻的他感作用及其参数

THE ALLELOPATHY OF MACROPHYTE POTAMOGETON PECTINATUS L ON CHLOROPHYTA(SCENEDESMUS OBLIQUUS)AND CYANOBACTERIA(MICROCYSTIS AERUGINOSA)AND CALCULATION OF ALLELOPATHIC PARAMETER

  • 摘要: 主要报道篦齿眼子菜(俗称红线草)的种植水抽滤液对栅藻、微囊藻生长的他感作用试验.应用修正的逻辑斯谛(Logistic)方程和Lotka-Volterra种群竞争模型来计算篦齿眼子菜对藻类的他感作用参数.纯培养试验结果表明:种植水抽滤液对栅藻生物量和生长率都有一定的促进作用.当浓度大于等于50%时,对栅藻生长的影响则是有抑制效应,他感作用效应与种植水的浓度没有明显的相关性,他感作用参数平均为-0.02.所有浓度设对照.微囊藻的生长都有明显的抑制作用,他感作用参数平均为-0.237.共培养试验结果表明:篦齿眼子菜种植水抽滤液对纯培养试验结果有放大效应.所有的种植水抽滤液浓度对栅藻生长都起促进作用,对栅藻的生物量效应、生长率存在明显的对数正相关,但与他感作用参数的相关不明显,共培养的他感作用参数平均为0.020;对微囊藻生长抑制作用更加明显,共培养的他感作用参数平均为-0.420.不管是纯培养还是共培养中,种植水抽滤液对栅藻的他感作用系数值都很低;而种植水抽滤液浓度对微囊藻的生物量效应、生长率或他感作用的参数都存在明显的线性负相关,并且他感作用系数值约高一个数量级.

     

    Abstract: It is reported in this paper that the results of allolepathy test of P. pectinatus L on Scenedesmus obliquus(Chlorophyta)and Microcystis aeruginosa(Cyanobacteria)with the filtrate of liquious cultured the macrophyte. Both macrophytes and phytoplankton are primary producer,and play the similar key role for material cycle and energy flow in aquatic ecosystem. Although there are many reports on the competition of nutrient and light between both of them,the biochemical interference of secreting substance from these primary producer is another important thing. Now the allelopathy of macrophytes on algae were paid more and more attention,by the reason how to control the pollution of cyanobacterial bloom. For the first time,we try to illustrate the qualitatively ecological significance of the allelopathy with bioassay approaches to calculate the allolepathic effect of biomass(Eb),of growth rate effect(Er)and the coefficient(Et).

     

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