• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mycologia >Functional and phylogenetic implications of septal pore ultrastructure in the ascoma of Neolecta vitellina.
【24h】

Functional and phylogenetic implications of septal pore ultrastructure in the ascoma of Neolecta vitellina.

机译：功能和系统发育的间隔孔超微结构在​​新蛋黄子的子宫颈。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Neolecta represents the earliest derived extant ascomycete lineage (Taphrinomycotina) to produce ascomata. For this reason the genus has been of interest with regard to ascoma evolution in ascomycetes. However, the evidence is equivocal regarding whether the Neolecta ascoma is homologous or analogous to ascomata produced in the later derived ascomycete lineages (Pezizomycotina). We investigated phylogenetically informative septal pore ultrastructure of Neolecta vitellina to compare with Pezizomycotina. We found that crystalline bodies that block nonascogenous septal pores in Neolecta differ from Woronin bodies, a synapomorphy for the Pezizomycotina, in three ways: (i) vacuolar origin, (ii) associated material and (iii) being loosely membrane bound. We also observed a unique type of membranous material within the septal pore, as well as distant from the septal pore, that appears to be associated with the endoplasmic reticulum. The vacuolar crystals and membranous material might have a function analagous to septal pore structures (e.g. Woronin bodies, lamellate structures) in the Pezizomycotina. Morphological evidence from our study supports an independently derived septal pore-occluding structure in the Neolecta lineage.
机译：Neolecta代表最早衍生的现存子囊菌谱系（Taphrinomycotina）来产生子囊菌。由于这个原因，该属对于子囊中的子囊演化一直很感兴趣。但是，关于新来子的昏迷与后来衍生的子囊菌谱系（Pezizomycotina）中产生的子囊是同源还是相似的证据是模棱两可的。我们调查了Neolecta vitellina的系统发育信息的间隔孔超微结构，以与Pezizomycotina进行比较。我们发现阻塞Neolecta中非粘液性中隔孔的结晶体与Woronin体（Pezizomycotina的同形同形体）在三种方面有所不同：（i）液泡起源，（ii）相关物质，以及（iii）膜结合松散。我们还观察到隔垫孔内以及远离隔垫孔的独特类型的膜材料，这似乎与内质网有关。液泡状晶体和膜状物质可能具有类似于Pezizomycotina中的间隔孔结构（例如，沃罗宁体，层状结构）的功能。我们研究的形态学证据支持Neolecta谱系中独立衍生的间隔孔闭塞结构。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号