Real Jardín Botánico, CSIC, Madrid, Spain.
Mycologia. 2012 Sep-Oct;104(5):1206-12. doi: 10.3852/11-427. Epub 2012 Apr 9.
A new species of Physarum (Myxomycetes), Physarum atacamense is described in this paper, and details are provided on its life cycle as observed in spore-to-spore culture in agar. The new species was collected during studies of the Atacama Desert in Chile. It has been collected directly in the field and isolated in moist chamber cultures prepared with material from an endemic cactus. The combination of characters that make this species unique in the genus are its large fusiform nodes of the capillitium, its long, bicolored stalk and the very dark brown and densely warted angular spores. The morphology of specimens of this myxomycete was examined with scanning electron microscopy and light microscopy, and micrographs of relevant details and life cycle stages are included in this paper. The importance of resistant stages in the life cycle of this myxomycete is stressed, and the close association of this myxomycete with its plant substrates is discussed.
本文描述了一种新的Physarum（黏菌门）物种，即Physarum atacamense，并详细介绍了在琼脂孢子到孢子培养中观察到的其生活史。该新种是在智利阿塔卡马沙漠的研究中采集的。它是直接在野外采集的，并在湿润室培养中分离出来，培养材料取自一种特有仙人掌。使该物种在属中独一无二的特征组合是其大型梭形的发网节点、长的双色柄和非常深棕色且密布疣状的角孢子。该黏菌的标本的形态学用扫描电子显微镜和光学显微镜进行了检查，并在本文中包含了相关细节和生活史阶段的显微照片。强调了该黏菌生活史中抗性阶段的重要性，并讨论了该黏菌与其植物基质的密切联系。
