VESICULAR‐ARBUSCULAR MYCORRHIZA IN NATURAL VEGETATION SYSTEMS
VESICULAR‐ARBUSCULAR MYCORRHIZA IN NATURAL VEGETATION SYSTEMS
复制标题
天然植被系统中的囊泡-丛枝菌根
DOI：
10.1111/j.1469-8137.1982.tb03259.x
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发表时间：
1982
期刊：
影响因子：
9.4
通讯作者：
D. Read
中科院分区：
文献类型：
--
作者：
J. Whittingham;D. Read
总结
对英格兰中东部主要植被类型的囊泡-丛枝菌根感染的强度进行了评估。草原、灌木丛和林地的所有最重要物种都是菌根，任何物种的每个个体通常都携带严重的 VA 感染。禾本科成员感染尤其严重。在石灰岩草原中，感染范围扩大到莎草科和灯笼科植物。全年感染水平很高，最高水平出现在营养最紧张的情况下。
发芽后不久，菌根就会发育，通常是在幼苗仍处于子叶阶段时。由于存活的球囊霉型孢子的数量很低，因此认为感染是由根与根的接触而不是孢子引起的。讨论了广泛感染的生态影响。
Summary
The intensity of vesicular-arbuscular mycorrhizal infection was assessed in the major vegetation types of east-central England. All of the most important species of grassland, scrub and woodland were mycorrhizal and each individual of any species normally carried a heavy VA infection. Members of the Gramineae were particularly heavily infected. In limestone grassland, infection extended to members of the Cyperaceae and Juncaceae. Infection levels were high throughout the year, the highest levels occurring in the most nutrient-stressed situations.
Mycorrhiza develops soon after germination, often while seedlings are still in the cotyledon stage. Since numbers of viable Glomus type spores are low, infection is thought to arise from root to root contact rather than from spores. The Ecological implications of the widespread infection are discussed.