Neonectria and Cylindrocarpon:: the Nectria mammoidea group and species lacking microconidia
Neonectria and Cylindrocarpon:: the Nectria mammoidea group and species lacking microconidia
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DOI：
10.2307/3762176
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发表时间：
2004-05-01
期刊：
影响因子：
2.8
通讯作者：
Samuels, GJ
中科院分区：
文献类型：
--
作者：
Brayford, D;Honda, BM;Samuels, GJ
具有圆柱状变形但缺乏微分生孢子和衣原孢子的新树属（下crecre亚目：新树科）物种包括：discophora变种，discophora，不。黄斑蝶，11月起。11月,尼欧。最亮的星,梳子。11月,尼欧。viridispora, sp. 11月和Neo。westlandica,梳子。11 .这些物种的周周呈红色，周周解剖结构为N. mammoidea型，外周壁上有菌丝样细胞的栅栏。这些物种出现在最近死亡或垂死的树木上。Neo的Perithecia。桦树，sp. nov和Neo。在解剖学和生物学上都与Neo相似。discophora。唯一已知的尼奥文明。白桦保持不育，而尼奥。Dumontii没有被培养；他们的变形被认为是圆柱龙。对其ssu - rDNA序列的分析表明，该物种是单系的。在属内，种有N. mammoidea型周皮是副寄生的。大多数种与Neo聚集在一起。discophora，但是Neo。westlandica和Neo。气管是一个分支的基础，包括没有乳毛蕊毛蕊类周皮的物种。油葵属的簇独立于新油葵属和油葵属。尽管有报道称其具有圆柱形碳碳棒变形，但岩藻芽孢杆菌的新鲜子囊孢子分离株不产生圆柱形碳碳棒大分生孢子，而是产生像顶孢或黄萎病样的变形。本文提出了一种具有圆柱碳形、缺乏微分生孢子和衣原体孢子和/或具有N.乳房idea型周壁解剖结构的新电子属物种的关键。新的组合提出了其他物种以前包括在Nectria具有非微分生圆筒碳变形：新ecectria cinnamomea， Neo。jungneri,尼奥。platycephala,尼奥。phaeodisca和Neo。verrucospora。
Neonectria (Hypocreales: Nectriaceae) species having Cylindrocarpon anamorphs that lack microconidia and chlamydospores include: Neo. discophora var. discophora, No. discophora var. rubi, stat nov. et comb. nov., Neo. lucida, comb. nov, Neo. viridispora, sp. nov. and Neo. westlandica, comb. nov. Perithecia of these species are red and perithecial anatomy is of the N. mammoidea type, with a palisade of hypha-like cells in the outer perithecial wall. These species occur on recently dead or dying trees. Perithecia of Neo. betulae, sp. nov and Neo. dumontii, sp. nov. are anatomically and biologically similar to those of Neo. discophora. The only known culture of Neo. betulae remained sterile, while Neo. dumontii has not been cultured; their anamorphs are presumed to be Cylindrocarpon. Analyses of mit ssu rDNA sequences indicate that Neonectria/Cylindrocarpon is monophyletic. Within the genus, species having N. mammoidea type perithecia are paraphyletic. Most species cluster with Neo. discophora, but Neo. westlandica and Neo. trachosa are basal to a clade that includes species that do not have a N. mammoidea-type perithecium. Nectria fuckeliana clusters independently of Neonectria and Nectria. Although reported to have a Cylindrocarpon anamorph, fresh ascospore isolates of N. fuckeliana did not produce Cylindrocarpon macroconidia but produced acremonium- or verticillium-like anamorphs. A key to nectriaceous species of Neonectria that have Cylindrocarpon anamorphs that lack microconidia and chlamydospores and/or that have a N. mammoidea type perithecial wall anatomy is presented. New combinations are proposed for other species formerly included in Nectria that have non-microconidial Cylindrocarpon anamorphs: Neonectria cinnamomea, Neo. jungneri, Neo. platycephala, Neo. phaeodisca and Neo. verrucospora.