AI Article Synopsis
- A new species called Phytophthora pseudopolonica sp. nov. was discovered in stream water during a survey in subtropical forests in China from 2011 to 2013.
- *This species is unique due to its morphology, producing distinct sporangia and abundant hyphal swellings and chlamydospores when kept in sterile water.
- *It has an optimal growth temperature of 30 °C, with minimal growth at lower (5 °C) and higher (35 °C) temperatures, and is genetically similar to Phytophthora polonica within clade 9.
Article Abstract
A new species of the genus Phytophthora was isolated from stream water in the subtropical forests of China during a survey of forest Phytophthora from 2011 to 2013. This new species is formally described here and named Phytophthora pseudopolonica sp. nov. This new homothallic species is distinct from other known Phytophthora species in morphology and produces nonpapillate and noncaducous sporangia with internal proliferation. Spherical hyphal swellings and thin-walled chlamydospores are abundant when the species is kept in sterile water. The P. pseudopolonica sp. nov. forms smooth oogonia with paragynous and sometimes amphigynous antheridia. The optimum growth temperature of the species is 30 °C in V8-juice agar with β-sitosterol, yet it barely grows at 5 °C and 35 °C. Based on sequences of the internal transcribed spacer and the combined β-tubulin and elongation factor 1α gene sequence data, isolates of the new species cluster together into a single branch and are close to Phytophthora polonicabelonging to clade 9.
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| http://dx.doi.org/10.1099/ijsem.0.002254 | DOI Listing |
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