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    闫明, 钟章成. 铝胁迫和丛枝菌根真菌对樟树幼苗生长的影响[J]. 北京林业大学学报, 2007, 29(4): 161-165. DOI: 10.13332/j.1000-1522.2007.04.032
    引用本文: 闫明, 钟章成. 铝胁迫和丛枝菌根真菌对樟树幼苗生长的影响[J]. 北京林业大学学报, 2007, 29(4): 161-165. DOI: 10.13332/j.1000-1522.2007.04.032
    YAN Ming, ZHONG Zhang-cheng. Effects of aluminum stress and AMF on the growth of Cinnamomum camphora seedlings[J]. Journal of Beijing Forestry University, 2007, 29(4): 161-165. DOI: 10.13332/j.1000-1522.2007.04.032
    Citation: YAN Ming, ZHONG Zhang-cheng. Effects of aluminum stress and AMF on the growth of Cinnamomum camphora seedlings[J]. Journal of Beijing Forestry University, 2007, 29(4): 161-165. DOI: 10.13332/j.1000-1522.2007.04.032

    铝胁迫和丛枝菌根真菌对樟树幼苗生长的影响

    Effects of aluminum stress and AMF on the growth of Cinnamomum camphora seedlings

    • 摘要: 为了探讨丛枝菌根缓解铝(Al)毒对三峡库区林木胁迫的机理,该文研究了使用Al3+浓度为0、0.5、8和15mmol/L的酸性Al溶液胁迫10周后,接种和不接种丛枝菌根真菌的樟树幼苗的形态、生物量以及不同器官的磷(P)含量等指标.结果表明,在对照(c(Al3+)=0 mmol/L)和轻度胁迫(c(Al3+)=0.5 mmol/L)下,植株地上部分和地下部分的形态、生物量和不同器官的P含量等大部分指标,接种的植株显著好于不接种的植株;而在中度胁迫(c(Al3+)=8 mmol/L)和重度胁迫(c(Al3+)=15 mmol/L)下,接种植株的上述指标要略好或接近于不接种的植株.说明接种丛枝菌根赋予植株一定的抗Al毒特性.

       

      Abstract: In order to explore the mechanism of arbuscular mycorrhiza alleviate stress of aluminum(Al) toxicity on trees of Three Gorges Reservoir Area,mycorrhizal and non-mycorrhizal Cinnamomum camphora(camphor tree) seedlings were exposed to c(Al3+) levels of 0,0.5,8,and 15 mmol/L for 10 weeks.The authors evaluated if the morphology,biomass and phosphorus contents of different organs of host plants could be responsible for the acid solutions with different c(Al3+) levels.The results showed that as far as morphology and biomass of aboveground and belowground and P content of different organs were concerned,mycorrhizal plants had higher resistance to Al than non-mycorrhizal ones at c(Al3+)=0 and 0.5 mmol/L in acid solutions;mycorrhizal plants appeared better or similar with non-mycorrhizal ones at c(Al3+)=8 and 15 mmol/L in acid solutions.The results indicate that AM fungal consortium confer some Al resistance to camphor tree seedlings.

       

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