The hiodiversity of fungi in taxonomy and the biotopes in which they inhabit leads to the production of a variety of secondary metabolites that display a broad range of bioactivities, from which some very important medicines have been discovered. Even though the fungal secondary metabolites are an important source of drug leads, it has become increasingly difficult to discover new natural product scaffolds due to extensive screening of common soil fungi. Those special types of fungi have heen largely neglected, presumably due to the difficulty in collecting and culturing of the organisms. Therefore,fungi of significantly underexplored taxonomic and ecological groups provide limitless metabolic potential for the production of new bioactive nalural products, and systematic investigations of these fungal species will definitely play a key role in the discovery of new drug leads and understanding the chemical and biological bases for their living strategies. During the past four years, our research group has mainly focused on special types of fungi as sources of new bioactive metabolites. such as the endophytic fungi and the Cordyceps-colonizing fungi. Some results from this work are summarized herein.%真菌的物种与生态多样性导致了其次生代谢产物结构与活性的多样性,是药物先导化合物的重要来源之一.常规真菌来源活性物质的研究多是针对普通资源的盲筛,尽管通过高通量筛选能提高效率.但发现新活性物质的几率较低,成为制约先导化合物发现的瓶颈.由于特殊生境真菌资源的收集、整理以及培养的难度较大,制约了相关的研究,因而挖掘其代谢潜力对发现先导化合物、解析探索真菌的互作与环境适应机制都具有重要的意义.本课题组主要选择生存环境及互作关系独特的内生菌与冬虫夏草定殖真菌进行研究.高效发现新结构活性次生代谢产物.本文主要介绍近4年来我们在这方面研究中取得的进展.
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