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題 名 | 鋁在煤礦棄土地琉球松菌根造林木的聚積=Aluminum Accumulation of Mycorrhizal Luchu Pine Planted on Coal Mine Spoil |
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作 者 | 顏江河; 胡弘道; 鍾旭和; | 書刊名 | 中華林學季刊 |
卷 期 | 32:3=126 1999.09[民88.09] |
頁 次 | 頁313-322 |
分類號 | 436.193 |
關鍵詞 | 鋁聚積; 菌根; 琉球松; Aluminum accumulation; Mycorrhizae; Luchu pine; |
語 文 | 中文(Chinese) |
中文摘要 | 將人工接種彩色豆馬勃(Pisolithus tinctorius)菌根的琉球松(Pinus luchuensis)栽植於煤礦棄土地。在土壤高鋁含量下,全株鋁含量以地下部細根之鋁濃度最高(2532 μ g/g),地上部枝條與針葉之鋁濃度則老葉之鋁濃度高於新葉者,由第一針葉的318 μ g/g降至第六針葉的204 μ g/g;老枝條鋁濃度高於新枝條,由第一枝條的288 μ g/g降至第六枝條的151 μ g/g,同一部位的針葉鋁濃度高於枝條,幹葉之鋁濃度510 μ g/g為地上部最高者,落葉之鋁濃度則更高,達876 μ g /g。煤礦棄土地土壤中可置換性鋁離子雖然高出其他非煤礦棄土地(包括新店、北投、平溪)十餘倍,且細根部位鋁濃度亦高出其他地區者1.4∼2倍,但地上部鋁濃度除略高於新店者外,遠低於其餘二處。將琉球松菌根進行解剖觀察並以掃描式電子顯微鏡附元素光譜儀(SEM-EDS)分析,證實菌根菌氈部位含有高量鋁堆積,而根部皮層與中柱細胞則偵測不到鋁含量,顯示鋁被菌根菌絲有效的阻礙,摒除於根細胞之外,此為琉球松菌根能生長在煤礦棄土高鋁含量中的生理機制現象。 |
英文摘要 | Seedlings of Luchu pine (Pinus luchuensis) inoculated with mycorrhizal fungus (Pisolithus tinctorius) were established on high aluminum (Al) content coal mine spoil. Tissue analyses of these mycorrhizal pines showed that the fine roots had the highest Al concentration (2532 μ g/g).Among above ground branches and needles, the first needles contained the higher Al than the sixth needles from 318 μ g/g to 204 μ g/g, respectively. With the same pattern of Al concentration, the first branch contained 218 μ g/g and the sixth branch contained 151 μ g/g. Generally, Al concentration in needles was always higher than that of branches of the same shoot. The litterfall contained extremely high Al concentration (876 μ g/g), whereas the stem-leaf was found with the highest Al concentration (510 μ g/g)among all the above ground tissues. Although the exchangeable-Al of coal mine spoil were ten fold higher than those of normal sites (Hsintien, Peitou, Pingshi) and the fine root Al concentration of Luchu pine were 1.4-2 fold higher than those grown on normal sites, the Al concentration from above ground tissues of Luchu pine in coal mine spoil was significantly lower than those on Peitou and Pingshi and was slightly higher than those on Hsintien. Anatomical observation of the fine roots with scanning electron microscopy and energy dispersive spectrospcopy (SEM-EDS) showed mycorrhize accumulated high Al in fungus mantle, wheres the root cortex and stele cell were not found Al existence. Our findings indicated that mycorrhizal fungus was capable to prevent Al entering root cell. It was the physical mechanism of mycorrhizal Luchu pine, which allowed to grow on coal mine spoil. |
本系統中英文摘要資訊取自各篇刊載內容。