杨亚丽;李松;沈涛;李涛;史云东;王元忠;

• 1:玉溪师范学院化学生物与环境学院
• 2:玉溪师范学院科学技术处
• 3:玉溪师范学院国有资产管理处
• 4:云南省农业科学研究院药用植物研究所

摘要(Abstract)：

为探明茯苓的碳、氮、磷生态化学计量学特征,采集了云南省11个州、市42个居群的茯苓样本,分析了其菌核与表皮中碳(C)、氮(N)、磷(P)的化学计量特征。结果表明:茯苓菌核中C、N、P的含量分别为40.24%–43.58%、0.176%–0.532%和0.020%–0.077%;C:N、C:P和N:P的范围分别为93.23–279.42、1 342.00–5 571.32和8.11–44.62;茯苓皮中C、N、P的含量分别为29.86%–48.71%、0.229%–0.895%和0.027%–0.107%;C:N、C:P和N:P的值分别为49.90–206.53、884.74–4 290.89和8.35–41.41,茯苓菌核与表皮中C:N:P比值的中位数分别为3317:18:1和2 318:22:1。茯苓菌核中碳含量与表皮无显著差异,氮、磷含量均低于表皮(P<0.01)。野生与栽培茯苓相比,除菌核碳含量、茯苓皮C:N无显著差异外,其他指标均存在显著差异。野生茯苓的氮含量显著高于栽培茯苓,磷含量显著低于栽培茯苓。茯苓菌核中C含量与纬度显著负相关,N含量与经度极显著正相关,C:N与经度极显著负相关,N:P与经度显著正相关;茯苓皮中C、N含量与经度显著正相关;碳、氮、磷的含量与海拔无相关关系。结论:茯苓中碳的含量与其他真菌较为接近,氮和磷的含量明显偏低;在栽培条件下茯苓的生长可能受到氮或氮、磷的共同限制。

关键词(KeyWords)： 真菌;碳氮磷含量;碳氮比;碳磷比;氮磷比;环境因子;相关分析

Abstract:

Keywords:

基金项目(Foundation): 云南省应用基础研究项目(2017FD163);; 国家自然科学基金(32060570,31860584);; 云南省重大科技专项《云茯苓品质提升技术研究及示范》(202102AA100010)~~

作者(Authors): 杨亚丽;李松;沈涛;李涛;史云东;王元忠;

DOI: 10.13346/j.mycosystema.210093

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