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Phytophthora borealis and Phytophthora riparia , new species in Phytophthora ITS Clade 6
Mycologia, 2012Phytophthora borealis and Phytophthora riparia, identified in recent Phytophthora surveys of forest streams in Oregon, California and Alaska, are described as new species in Phytophthora ITS Clade 6. They are similar in growth form and morphology to P. gonapodyides and are predominantly sterile. They present unique DNA sequences, however, and differ in
Everett M, Hansen +2 more
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The cytology of phytophthora infestans
Chromosoma, 1965Phytophthora infestans has three kinds of somatic nuclei: an oval shaped nucleus (approx. 3.1×2.7 μ) which stains diffusely except for a crescent shaped Feulgen positive “cap” which stains intensely; a “granular” nucleus whose contents are organized into a fairly constant number of stained bodies, and, a deeply staining “condensed” nucleus. The “capped”
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Canadian Journal of Botany, 1956
Phytophthora cactorum grew well in ammonium–salt media but not in nitrate. Conversely, P. megasperma grew well in nitrate but not in ammonium–salt media. P–parasitica and P. erythroseptica grew well in both, but better in that containing nitrate. All species grew better in the presence of organic nitrogen. Evidence is presented that iron, zinc, copper,
L. E. Lopatecki, William Newton
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Phytophthora cactorum grew well in ammonium–salt media but not in nitrate. Conversely, P. megasperma grew well in nitrate but not in ammonium–salt media. P–parasitica and P. erythroseptica grew well in both, but better in that containing nitrate. All species grew better in the presence of organic nitrogen. Evidence is presented that iron, zinc, copper,
L. E. Lopatecki, William Newton
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Phytophthora infestans (Phytophthora blight)
PlantwisePlus Knowledge Bank, 2022openaire +1 more source
Phytophthora cinnamomi (Phytophthora dieback)
PlantwisePlus Knowledge Bank, 2022openaire +1 more source