| 过量钠盐胁迫对3种外生菌根真菌生长和钠元素积累的影响* |
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| 引用本文： | 黄艺, 姜学艳, 季海波, 许天平,.过量钠盐胁迫对3种外生菌根真菌生长和钠元素积累的影响*[J].微生物学通报,2004,31(3):45-49. |
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| 作者姓名： | 黄艺 姜学艳 季海波 许天平 |
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| 作者单位： | 1. 北京大学环境学院环境科学系,北京,100871
2. 胜利油田仙河园林公司,东营,257000 |
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| 基金项目： | 国家自然科学基金资助项目(No.40021101) |
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| 摘 要： | 通过测定3种外生菌根真菌-美味牛肝菌(Boletus edulis)、红绒盖牛肝(Xerocomus chtysenterort)和铆钉菇(Gomphidius viscidus)在Na2SO4和NaCl处理下的菌斑增长特性、生物量积累和菌丝中钠元素积累量显示，2种盐都没有影响菌丝的生长模式。但在0．1mol／L浓度下，NaCl显抑制了X．chrysertterort和G．viscidus的干重增长；在Na2SO4处理下，X．chrysenteron生物增长量比对照显增加，G．viscidus则降低，而2种盐处理对B．edtdis的生物量积累没有显影响。3供试菌种在2种盐处理下，其对钠元素的吸收和积累量差异显。NaCl处理下，X．chtysenteron菌丝积累的钠量最多，而在Na2SO4条件下，B．edulis菌丝中钠积累量显高于其他2菌种。
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| 关 键 词： | 外生菌根真菌 钠盐胁迫 生长 元素积累 |
| 文章编号： | 0253-2654(2004)03-0045-05 |
| 修稿时间： | 2003年6月26日 |
Influence of Excessive Na Stress on Growth and Element Accumulation of Three Species of Ectomycorrhizal Fungi |
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| HUANG Yi JIANG Xue-Yan JI Hai-Bo XU Tian-Ping.Influence of Excessive Na Stress on Growth and Element Accumulation of Three Species of Ectomycorrhizal Fungi[J].Microbiology,2004,31(3):45-49. |
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| Authors: | HUANG Yi JIANG Xue-Yan JI Hai-Bo XU Tian-Ping |
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| Abstract: | This study deals with colony expansion characteristics, biomass increment and Na accumulation in mycelia of three ectomycorrhizal fungi ( Boletus edulis, Xerocomus chrysenteron and Gomphidius viscidus ) under treatment of Na2SO4 and NaCl. The experimental results showed that no impact was observed from Na2SO4 and NaCl treatments on the growth mode of the mycelia, but the biomass increment of X. chrysenteron and G. viscidus was significantly restrained under 0.1 mol/L Nacl. Under the treatment of Na2SO4, biomass increment of X. chrysenteron is significantly higher than the control, but the biomass of G. viscidus is lower than that of the control, and no significant impact was measured on growth of B. edulis under both treatments of Na2 SO4 and NaCl. The experiment also indicated that Na accumulation in mycelia varied significantly among the three tested strains, highest Na accumulation was measured in X. chrysenteron under treatment of NaCl, while under the treatment of Na2SO4 , accumulation of Na in B. edulis is much higher than the other two strains. |
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| Keywords: | Ectomycorrflizal fungi Sodium salt stress Growth Element accumulation |
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