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The fossil record of the Peronosporomycetes (Oomycota)

机译：Peronosporomycetes（Oomycota）的化石记录

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Evidence of fossil Peronosporomycetes has been slow to accumulate. In this review various fossils historically assigned to the Peronosporomycetes are discussed briefly and an explanation is provided as to why the fossil record of this group has remained inconsistent. In recent years there have been several new reports of fossil peronosporomycetes based on structurally preserved oogonium-antheridium complexes from Devonian and Carboniferous rocks that demonstrate the existence of these organisms as fossils and refute the long-standing assumption that they are too delicate to be preserved. Among these are several types characterized by oogonial surface ornamentation patterns not seen in any modern members of the group. To date at least three groups of fossil vascular plants (i.e. lycophytes, ferns and seed ferns) are known to host peronosporomycetes as endophytes; however only one form has been identified as a parasite.
机译：化石Peronosporomycetes的证据积累缓慢。在这篇综述中，简要讨论了历史上归属于Peronosporomycetes的各种化石，并提供了关于为何该类化石记录仍然不一致的解释。近年来，有一些新的关于化石孢子菌化石的报道，这些化石是从泥盆纪和石炭纪岩石中结构保存的卵go-花药复合体形成的，它们证明了这些生物作为化石的存在，并驳斥了长期以来一直认为它们太精致而无法保存的假设。其中有几种类型，其特征是在该组的任何现代成员中都没有看到的卵形表面装饰图案。迄今为止，已知至少三类化石维管植物（即，苔藓植物，蕨类植物和种子蕨类植物）寄养了孢子囊菌，作为内生菌。但是，只有一种形式被鉴定为寄生虫。

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