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Two new species ofUndifilum, fungal endophytes ofAstragalus(locoweeds) in the United States
Botany ( IF 1.1 ) Pub Date : 2012-09-01 , DOI: 10.1139/b2012-056
Deana L Baucom 1 , Marie Romero , Robert Belfon , Rebecca Creamer
Affiliation  

New species of Undifilum, from locoweeds Astragalus lentiginosus Vitman and Astragalus mollissimus Torr., are described using morphological characteristics and molecular phylogenetic analyses as Undifilum fulvum Baucom & Creamer sp. nov. and Undifilum cinereum Baucom & Creamer sp. nov. Fungi were isolated from dried plants of A. lentiginosus var. araneosus, diphysus, lentiginosus, and wahweapensis collected from Arizona, Oregon, and Utah, USA, and A. mollissimus var. biglovii, earleii, and mollissimus collected from New Mexico, Oklahoma, and Texas, USA. Endophytic fungi from Astragalus locoweeds were compared to Undifilum oxytropis isolates obtained from dried plant material of Oxytropis lamberteii from New Mexico and Oxytropis sericea from Arizona, Colorado, New Mexico, Utah, and Wyoming. Extremely slow growth in vitro was observed for all, and conidia, if present, were ellipsoid with transverse septa. However, in vitro color, growth on four different media, and conidium size differed between fungi from Astragalus spp. and U. oxytropis. Neighbor-joining analyses of internal transcribed spacer (ITS) region and glyceraldehyde-3-phosphate dehydrogenase (GPD) gene sequences revealed that U. fulvum and U. cinereum formed a clade distinct from U. oxytropis. This was supported by neighbor-joining analyses of results generated from random amplified polymorphic DNA (RAPD) fragments using two different primers.

中文翻译:

美国黄芪(疯草)真菌内生菌Undifilum两个新种

Undifilum 的新种,来自疯草 Astragalus lentiginosus Vitman 和 Astragalus mollissimus Torr.,使用形态特征和分子系统发育分析描述为 Undifilum fulvum Baucom & Creamer sp。十一月 和 Undifilum cinereum Baucom & Creamer sp。十一月 从 A. lentiginosus var. 的干燥植物中分离出真菌。从美国亚利桑那州、俄勒冈州和犹他州收集的 araneosus、diphysus、lentiginosus 和 wahweapensis,以及 A. mollissimus var. biglovii、earleii 和 mollissimus 从美国新墨西哥州、俄克拉荷马州和德克萨斯州收集。将来自黄芪的内生真菌与从来自新墨西哥州的 Oxytropis laberteii 和来自亚利桑那州、科罗拉多州、新墨西哥州、犹他州和怀俄明州的 Oxytropis sericea 的干燥植物材料中获得的 Undifilum oxytropis 分离物进行了比较。观察到所有的体外生长都非常缓慢,分生孢子如果存在,则是具有横向隔膜的椭圆体。然而,黄芪属真菌的体外颜色、在四种不同培养基上的生长和分生孢子大小不同。和 U. oxytropis。对内部转录间隔区 (ITS) 区域和 3-磷酸甘油醛脱氢酶 (GPD) 基因序列的相邻连接分析表明,黄腐霉和灰霉病形成了一个与产酸橙不同的进化枝。这得到了使用两种不同引物对随机扩增多态性 DNA (RAPD) 片段产生的结果的相邻连接分析的支持。对内部转录间隔区 (ITS) 区域和 3-磷酸甘油醛脱氢酶 (GPD) 基因序列的相邻连接分析表明,黄腐霉和灰霉病形成了一个与产酸橙不同的进化枝。这得到了使用两种不同引物对随机扩增多态性 DNA (RAPD) 片段产生的结果的相邻连接分析的支持。对内部转录间隔区 (ITS) 区域和 3-磷酸甘油醛脱氢酶 (GPD) 基因序列的相邻连接分析表明,黄腐霉和灰霉病形成了一个与产酸橙不同的进化枝。这得到了使用两种不同引物对随机扩增多态性 DNA (RAPD) 片段产生的结果的相邻连接分析的支持。
更新日期:2012-09-01
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