Lack of fungal cultivar fidelity and low virulence of Escovopsis trichodermoides
Lack of fungal cultivar fidelity and low virulence of Escovopsis trichodermoides
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DOI：
10.1016/j.funeco.2020.100944
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发表时间：
2020-06-01
期刊：
影响因子：
2.9
通讯作者：
Rodrigues, Andre
中科院分区：
文献类型：
--
作者：
Bizarria Jr, Rodolfo;Nagamoto, Nilson Satoru;Rodrigues, Andre
真菌生长蚂蚁（蚂蚁）是共生关系的一个重要例子，它们通过种植真菌来获取食物。真菌属Escovopsis（子囊菌门：肉座菌目）威胁蚂蚁真菌品种，并显示对他们的特异性模式。Escovopsis pellidermoides是从低等真菌Mycocepurus goeldii的菌落中描述的，然而，其生态作用仍然未知。在这里，我们提供了线索的通才性质的E。对不同蚁种的真菌品种缺乏忠实性，在M. goeldii。抑制性可溶性化合物由E.对不同的真菌品种，作为干扰竞争的机制。有趣的是，这种多面手的生活方式并不是Escovopsis物种的共同特征，它们通常表现出对伴侣的忠诚。我们的研究表明，Escovopsis有更多的生活方式比以前认为的，促使进一步调查其演变的attine蚂蚁真菌共生。(C)2020 Elsevier Ltd和英国真菌学会。All rights reserved.
Fungus-growing ants (the attines) are a paramount example of symbiosis, practicing fungiculture for food. Fungi in the genus Escovopsis (Ascomycota: Hypocreales) threaten the ant fungal cultivars and show patterns of specificity towards them. Escovopsis trichodermoides was described from colonies of the lower attine Mycocepurus goeldii, however, its ecological role is still unknown. Here we provide clues of the generalist nature of E. trichodermoides, with lack of fidelity to fungal cultivars from different attine ant species and low infection in ant colonies of M. goeldii. Inhibitory soluble compounds are produced by E. trichodermoides towards different fungal cultivars, as a mechanism of interference competition. Interestingly this generalist lifestyle is not a common trait of Escovopsis species, which usually show partner fidelity. Our study indicates that Escovopsis has more lifestyles than previously thought, prompting further investigations on its evolution in the attine ant-fungal symbiosis. (C) 2020 Elsevier Ltd and British Mycological Society. All rights reserved.