Wrigley de Basanta Diana, Estrada-Torres Arturo, García-Cunchillos Iván, Cano Echevarría Asunción, Lado Carlos
a Real Jardín Botánico, CSIC , Plaza de Murillo 2, 28014 Madrid , Spain.
b Centro Tlaxcala de Biología de la Conducta , Universidad Autónoma de Tlaxcala , km 1.5 carretera Tlaxcala-Puebla s/n, 90,062, AP 262 Tlaxcala , Mexico.
Mycologia. 2017;109(6):993-1002. doi: 10.1080/00275514.2018.1426925. Epub 2018 Mar 13.
A new species of Didymium (Myxomycetes), D. azorellae, isolated from plant debris in a moist chamber, collected during studies of cold arid areas of Argentina and Peru, is described. It can be distinguished by its small size, the tightly packed layer of lime crystals on the peridium, the very scant, or absent, capillitium, and the unique spore ornamentation, especially by scanning electron microscopy. The species developed on dead leaves of cushion plants growing in the extremely harsh environments of the central Andean puna at almost 5000 m elevation and the Andino-Patagonian steppe. Morphology was examined with scanning electron microscopy and light microscopy, and micrographs of relevant details are included here. In order to confirm the identity of the new species described in this paper, a molecular study was conducted based on partial sequences of both the 18S rRNA and the elongation factor 1-alpha gene. Phylogenetic analysis including two specimens from different countries of the newly described species, Didymium azorellae, strongly supports the grouping of these specimens as a separate clade from the rest of the analyzed species.
描述了一种新的双皮菌属（黏菌纲）物种——阿苏雷双皮菌，它是在对阿根廷和秘鲁寒冷干旱地区的研究过程中，从潮湿箱中的植物残体分离得到的。它可以通过其较小的尺寸、包被上紧密堆积的石灰晶体层、非常稀少或不存在的孢丝，以及独特的孢子纹饰来区分，特别是通过扫描电子显微镜观察。该物种生长在海拔近5000米的安第斯中部普纳地区和安第诺-巴塔哥尼亚草原极端恶劣环境中的垫状植物的枯叶上。用扫描电子显微镜和光学显微镜检查了其形态，并在此处包含了相关细节的显微照片。为了确认本文所描述新物种的身份，基于18S rRNA和延伸因子1-α基因的部分序列进行了分子研究。系统发育分析包括来自不同国家的新描述物种阿苏雷双皮菌的两个标本，有力地支持了将这些标本归为一个与其他分析物种不同的单独分支。
