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題 名 | 囊叢枝內生菌根菌在臺灣代表性土壤中之分布=General Survey of Arbuscular Mycorrhizal Fungi in Selected Soils of Taiwan |
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作 者 | 林素禎; 洪崑煌; 吳繼光; | 書刊名 | 中華農業研究 |
卷 期 | 49:4 2000.12[民89.12] |
頁 次 | 頁65-80 |
分類號 | 430.16341 |
關鍵詞 | 囊叢枝菌根菌; 生態; Arbuscular mycorrhizal fungi; Ecology; |
語 文 | 中文(Chinese) |
中文摘要 | 本報告內容主要為調查臺灣代表性土壤中,囊叢枝內生菌根菌孢子的種類與數量,並探討菌根菌的孢子數與土壤的理化性質之相關性。調查結果發現:在69個採樣土壤中有19個土壤28%)找不到囊叢枝內生菌根菌孢子,有63個土壤(91%)之孢子數少於100個/100g soil。在69個採樣土壤中所出現之內生菌根菌菌種共有15種,而這15種菌根菌出現6次以上的有8種,分別為 Acaulospora mellea (10次),A. morrowiae (25次),A. scrobiculata (8次),Glomus claroideum (10次),G. etunicatum (7次),G. mosseae (10次),G. occultum (16次)與 G. spurcum (6次)。平均孢子數最多之菌根菌菌種為 Glomus spurcum (349.7個/100g soil) 與Acaulospora scrobiculata (98.1個/100g soil)。本次採集的土壤樣品中除了Acaulospora mellea 的孢子數與交換性鈉含量有明顯之正相關外,其餘的樣品中菌根菌的孢子數與土壤的黏粒含量,有機質含量,有效性氮含量,有效性磷含量,交換性鉀、鈉、鈣、鎂含量,陽離子交換容量的相關性皆不顯著。由調查結果顯示:菌根菌多分布在土壤有機質含量小於5.5%,有效性氮含量小於75 mg/kg及有效性磷含量小於 75 mg/kg之土壤中。根據菌種在土壤樣品的出現機率發現:A. morrowiae 多分布於酸性土壤,G. mosseae則分布在微酸性至中性土壤,G. occultum分布範圍較廣,從酸性土壤到鹼性土壤皆可發現。 |
英文摘要 | A general survey of arbuscular mycorrhizal fungi (AMF) in some representative soils of Taiwan was conducted to investigate their diversity and quantity, as well as the correlation between spore number and soil compositions. The results indicated that 19 soil samples among 69 collection sites (28%) could not retrieve any spore, and 63 samples (91%) contained spores less than 100 spores/100 g soil. Totally, 15 species of AMF were recorded from 69 collected soils, and among which 8 species were identified in more than 6 soils. These species included Acaulospora mellea (10/69), A. morrowiae (25/69), A. scrobiculata (8/69), Glomus claroideum (10/69), G. etunicatum (7/69), G. mosseae (10/69) , G. occultum (16/69), and G. spurcum (6/69). The most productive species were G. spurcum (349.7 spores/100g soil) and A. scrobiculata (98.1 spores/100g soil). The correlation between spore number and the contents of clay, organic matter, available nitrogen, available phosphorus, exchangeable potassium, sodium, calcium and magnesium as well as cation exchangeable capacity (CEC) was not significant; however, for the species of A. mellea, the spore number was positively related to the exchangeable sodium contents in the collected soils. In this study, VA mycorrhizal fungi were mostly recovered from the soils containing organic material < 5.5%, available N < 75 mg/kg, and available P < 75 mg/kg. Based on the species frequency identified among soil samples, A. morrowiae was mainly isolated from acidic soils, and G. mosseae was frequently identified from weakly acidic to neutral soils. However, G. occultum seems to favor broader range of distribution, from acidic to alkaline soils. |
本系統中英文摘要資訊取自各篇刊載內容。