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首页> 外文期刊>Mycologia >Ecology of hypogeous fungi associated with ponderosa pine. I. Patterns of distribution and sporocarp production in some Arizona forests.
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Ecology of hypogeous fungi associated with ponderosa pine. I. Patterns of distribution and sporocarp production in some Arizona forests.

机译：与黄松相关的次生真菌生态学。 I.一些亚利桑那州森林的分布和子果皮生产模式。

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During 3 years, seasonal abundance and distribution of hypogeous fungi associated with selected stands of ponderosa pine (Pinus ponderosa) on the Coconino and Kaibab Plateaus, Arizona, were examined monthly. Peak sporocarp production occurred in spring and autumn, with the greatest species richness and abundance in autumn. Generally, production was initiated when mean air temperature was >8鳦 and when single precipitation amounts were >1.5 cm. Species richness paralleled sporocarp productivity. Sporocarp biomass production was positively affected by canopy cover afforded by clusters of intermediate aged P. ponderosa trees. Of the annual sporocarp biomass, 90% consisted of 16 genera of basidiomycetes. Rhizopogon evadens, R. subcaerulescens, Gautieria crispa, Hysterangium coriaceum and Sclerogaster xerophila accounted for 87% of annual sporocarp productivity, and were identified in every season. Four genera of ascomycetes and a zygomycete genus accounted for 8% of annual biomass. Geopora cooperi and Tuber levissimum were the most prevalent ascomycetes, individually contributing ?% to total sporocarp biomass in some years. The geographically separated P. ponderosa stands on the 2 plateaux had similar hypogeous mycota. Lower sporocarp production onthe Kaibab Plateau was partly attributed to lower precipitation and a preponderance of older trees in a late successional forest. When compared with Douglas-fir (Pseudotsuga menziesii) stands, annual sporocarp biomass in P. ponderosa was lower and the dominant fungi were different.
机译：在3年中，每月检查一次与亚利桑那州Coconino和Kaibab高原上选定的美国黄松（Pinus tankerosa）林分相关的次生真菌的分布和分布。子果皮产量高峰发生在春季和秋季，秋季物种丰富度和丰度最大。通常，当平均气温> 8℃且单次降水量> 1.5cm时开始生产。物种丰富度与果皮生产力平行。中间成熟的美国黄松树丛提供的冠层覆盖对果皮生物量的生产产生了积极的影响。在一年生的果皮生物量中，90％由16属担子菌组成。外生根瘤菌，亚油菜R.zoerercenscens，Gautieria crispa，Hysterangium coriaceum和Sclerogaster xerophila占年孢子果生产力的87％，并且在每个季节都有发现。子囊菌的四个属和合子菌的属占每年生物量的8％。 Geopora cooperi和Tuber levissimum是最常见的子囊菌，在某些年份中分别占总果皮生物量的？％。分布在两个高原上的地理分离的黄松体育虫具有类似的次要菌丝。凯巴布高原（Kaibab Plateau）的较低的子果皮产量部分归因于降雨减少和后期演替森林中大量老龄树木。与道格拉斯冷杉（Pseudotsuga menziesii）林分相比，黄杨假单胞菌的年果皮生物量较低，优势真菌也不同。

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