Phytophthora austrocedrae sp. nov., a new species associated with Austrocedrus chilensis mortality in Patagonia (Argentina)

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• 作者：Alina G. Greslebin ; Everett M. Hansen ; Wendy Sutton
• 关键词：Forest diseases ; Mal del cipré ; s ; Patagonian Andes forests ; Phytophthora diseases ; Soil pathogens
• 刊名：Mycological Research
• 出版年：2007
• 出版时间：March 2007
• 年：2007
• 卷：111
• 期：3
• 页码：308-316
• 全文大小：875 K

文摘

Phytophthora austrocedrae is a new species isolated from necrotic lesions of stem and roots of Austrocedrus chilensis. It is a homothallic species characterized by semipapillate sporangia, oogonia with amphigynous antheridia, and very slow growth (1–2 mm d⁻¹ on V-8 agar at 17.5 °C optimum temperature). Phylogenetic analysis of ITS rDNA sequence indicates that its closest relative is Phytophthora syringae, another species frequently isolated from soil and streams in A. chilensis forests.