Department of Entomology and Plant Pathology, 127 Noble Research Center, Oklahoma State University, Stillwater, OK 74078-3033, USA.
Persoonia. 2009 Jun;22:63-74. doi: 10.3767/003158509X430930. Epub 2009 Mar 11.
Cotton root rot is an important soilborne disease of cotton and numerous dicot plants in the south-western United States and Mexico. The causal organism, Phymatotrichopsis omnivora (= Phymatotrichum omnivorum), is known only as an asexual, holoanamorphic (mitosporic) fungus, and produces conidia resembling those of Botrytis. Although the corticoid basidiomycetes Phanerochaete omnivora (Polyporales) and Sistotrema brinkmannii (Cantharellales; both Agaricomycetes) have been suggested as teleomorphs of Phymatotrichopsis omnivora, phylogenetic analyses of nuclear small- and large-subunit ribosomal DNA and subunit 2 of RNA polymerase II from multiple isolates indicate that it is neither a basidiomycete nor closely related to other species of Botrytis (Sclerotiniaceae, Leotiomycetes). Phymatotrichopsis omnivora is a member of the family Rhizinaceae, Pezizales (Ascomycota: Pezizomycetes) allied to Psilopezia and Rhizina.
棉花根腐病是美国西南部和墨西哥的棉花和众多双子叶植物的一种重要土传病害。病原菌为 Phymatotrichopsis omnivora（= Phymatotrichum omnivorum），它仅作为无性、全型（有丝分裂）真菌被知晓，产生类似于 Botrytis 的分生孢子。尽管被皮层的担子菌 Phanerochaete omnivora（多孔菌目）和 Sistotrema brinkmannii（鸡油菌目；均属于伞菌纲）被提议为 Phymatotrichopsis omnivora 的同型态，但来自多个分离株的核小和大亚基核糖体 DNA 和 RNA 聚合酶 II 亚基 2 的系统发育分析表明，它既不是担子菌，也与其他 Botrytis 种（核盘菌科、Leotiomycetes）没有密切关系。Phymatotrichopsis omnivora 是 Rhizinaceae 科、Pezizales（子囊菌门：Pezizomycetes）的一员，与 Psilopezia 和 Rhizina 有关。
