Hu Wen-Shu, Jiang Lin-Lin, Liu Pu, Zhang Xiao-Yan, Wei Wei, Du Xi-Hui
College of Life Sciences, Chongqing Normal University, Chongqing 401331, China.
Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
J Fungi (Basel). 2024 Sep 28;10(10):678. doi: 10.3390/jof10100678.
spp. (true morels) are precious edible mushrooms consumed around the world, with a delicious taste, rich nutritional value, and unique healthcare effects. Various fungi and bacteria have been reported to colonize the ascocarps of , damaging their fruiting bodies and leading to serious economic losses in cultivation. The species identification of these colonizing organisms is crucial for understanding their colonization mechanisms on morels. Slime molds, which have characteristics of both "fungi" and "animals", can occasionally colonize crops and edible fungi. However, there have been no reports of dictyostelid cellular slime molds (dictyostelids) colonizing plants and fungi to date. In this study, we discovered that dictyostelids colonized the surface of one wild ascoma of in the forest of Chongqing, China, with the tissues being black and rotten. Macro- and micro-morphological observations, along with molecular phylogenetic analyses, identified the specimens investigated in this study as and sp. -21. The results provide new knowledge of dictyostelid colonization on organisms and contribute to the diversity of species colonizing true morels. Moreover, this is also the first report of dictyostelids distributed in Chongqing, China. This study enhances our insights into the life history and potential ecological significance of dictyostelids and updates their distribution area in China. Further research will be conducted to uncover the mechanisms behind the colonization observed in this study.
羊肚菌属（真正的羊肚菌）是全球食用的珍贵蘑菇，味道鲜美，营养价值高，具有独特的保健作用。据报道，多种真菌和细菌会在羊肚菌的子囊果上定殖，破坏其子实体，给栽培带来严重经济损失。对这些定殖生物进行物种鉴定，对于了解它们在羊肚菌上的定殖机制至关重要。黏菌兼具“真菌”和“动物”的特征，偶尔会在农作物和食用菌上定殖。然而，迄今为止，尚无关于盘基网柄菌属细胞黏菌（盘基网柄菌）在植物和真菌上定殖的报道。在本研究中，我们发现盘基网柄菌在中国重庆森林中一个野生羊肚菌子囊果的表面定殖，其组织发黑腐烂。通过宏观和微观形态观察以及分子系统发育分析，将本研究中调查的标本鉴定为盘基网柄菌和盘基网柄菌sp.-21。这些结果为盘基网柄菌在生物体上的定殖提供了新知识，并丰富了定殖于真正羊肚菌的物种多样性。此外，这也是盘基网柄菌在中国重庆分布的首次报道。本研究增进了我们对盘基网柄菌生活史及其潜在生态意义的认识，并更新了它们在中国的分布区域。后续将进一步研究以揭示本研究中观察到的定殖背后的机制。
