中国科学院昆明植物研究所种质资源库的研究人员在中国云南省的森林中发现了一种名为 Dianjunus rex（昵称“D-rex”）的巨型真菌 1。该物种隶属于子囊菌门（Ascomycota），其直立繁殖结构的高度可达50厘米，重量约为2.2公斤 1。研究指出，这是已知最大的子囊菌门真菌 1。鉴于其独特的分类地位，研究团队为其建立了新的科——Dianjunaceae 科 1。
分子钟分析显示，该真菌谱系的起源时间可追溯至约6500万年前，即白垩纪-古近纪大灭绝事件后约100万年 1。其最近的亲属物种为 Graphostroma platystoma 1。相关研究成果已发表在《Frontiers in Fungal Biology》期刊上，通讯作者为 Indunil C Senanayake 博士 1。
Researchers from the Germplasm Bank of Wild Species at the Kunming Institute of Botany, Chinese Academy of Sciences, have identified a massive new fungal species named Dianjunus rex, colloquially dubbed "D-rex," found in forests in Yunnan Province 1. This discovery represents the largest known fungus within the phylum Ascomycota, featuring upright reproductive structures that can reach heights of 50 centimeters (20 inches) and weigh up to 2.2 kilograms (4.9 pounds) 1. The study was led by corresponding author Dr. Indunil C Senanayake and has been published in the journal Frontiers in Fungal Biology 1.
The taxonomic analysis places this new species into a distinct newly established family, Dianjunaceae, with its closest relative being Graphostroma platystoma 1. Molecular clock dating indicates that the lineage of Dianjunus rex originated approximately 65 million years ago, roughly one million years after the Cretaceous-Paleogene mass extinction event 1.
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