• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mycologia >Habitat and host associations of Craterellus tubaeformis in northwestern Oregon
【24h】

Habitat and host associations of Craterellus tubaeformis in northwestern Oregon

机译：俄勒冈州西北部油小龟的栖息地和寄主协会

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Knowledge of the habitat and host associations of Craterellus tubaeformis (winter chanterelle) is the key to understanding the ecological characteristics needed for its conservation. In this study, a survey of forest types in northwestern Oregon for mycorrhizal associates is performed and the hypotheses that stand age and the volume of well-decayed, coarse, woody debris (CWD) are significant to the standing crop biomass and the probability of C. tubaeformis occurrence are tested. Host, associations were identified with polymerase chain reaction (PCR) amplification and restriction fragment-length polymorphism (RFLP) typing. Habitat associations were tested by measurements on 64 plots in the Coast and Cascade Ranges of northwestern Oregon. Data analysis found that stand age and well-decayed, coarse, woody debris were related significantly to the probability of C. tubaeformis occurrence buts not to standing crop biomass. Results indicated the volume of well-decayed CWD is particularly important to the probability of C. tubaeformis occurrence in stands less than 100 yr of age. Well-decayed CWD was the substratum for 88% of C. tubaeformis sporocarps across all stands, despite the fact that ground area coverage of CWD ranged only from 3 to 26%. Slope, elevation and aspect were not related to the probability of C. tubaeformis occurrence or standing crop biomass. The occurrence of C. tubaeformis in northwestern Oregon is highly correlated to the presence of western hemlock (Tsuga heterophylla), and their mycorrhizal association was confirmed. Craterellus tubaeformis also can form mycorrhizae with Douglas-fir (Pseudotsuga menziesii) and Sitka spruce (Picea sitchensis) but is encountered only rarely in stands without a hemlock component. In northwestern Oregon, the presence of Hydnum spp. in a stand is a good indicator of the presence of C. tubaeformis. Differences in genetic sequences between C. tubaeformis populations in western North America, eastern North America and Europe suggest the likelihood of several distinct species.
机译：了解小油菜菌的栖息地和寄主联系是了解其保护所需要的生态特征的关键。在这项研究中，对俄勒冈州西北部的菌根伴生进行了森林类型调查，并且立木龄和腐烂，粗大的木屑（CWD）量的假设对立木作物的生物量和碳的概率均具有重要意义。测试了小管虫的发生。宿主，协会确定了与聚合酶链反应（PCR）扩增和限制性片段长度多态性（RFLP）分型。通过在俄勒冈州西北海岸和喀斯喀特山脉的64个地块上进行测量，测试了人居协会。数据分析发现，林分年龄和腐烂的，粗糙的木质碎片与油曲霉发生的可能性显着相关，但与作物生物量无关。结果表明，腐烂的CWD量对于在小于100岁的林分中发生小管形梭菌的可能性特别重要。尽管实际上CWD的地面覆盖范围仅为3％至26％，但腐烂的CWD是所有林分中88％的C.tubaeformis孢子皮的基质。坡度，高程和坡向与管状小球藻的发生或作物生物量的发生率无关。俄勒冈州西北部管状小球藻的发生与西部铁杉（Tsuga heterophylla）的存在高度相关，并证实了它们的菌根关系。 Craterellus tubaeformis也可以与花旗松（Pseudotsuga menziesii）和Sitka云杉（Picea sitchensis）形成菌根，但在没有铁杉成分的林分中很少见到。在俄勒冈州西北部，Hydnum spp的存在。站在架子上可以很好地表明管状小球藻的存在。北美西部，北美东部和欧洲的小形弯曲杆菌种群之间的遗传序列差异表明存在几种不同物种的可能性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号