Phytophthora psychrophila explained

Phytophthora psychrophila is a semi-papillate plant pathogen that mainly infects European oak.^[1] It differs from other species of the genus (like P. ilicis) by its sympodially branched primary hyphae, the high variation in size and shape of the sporangia and shorter pedicels.

Further reading

• Balci. Y.. Balci. S.. Eggers. J.. MacDonald. W. L.. Juzwik. J.. Long. R. P.. Gottschalk. K. W.. Phytophthora spp. Associated with Forest Soils in Eastern and North-Central U.S. Oak Ecosystems. Plant Disease. 91. 6. 2007. 705–710. 0191-2917. 10.1094/PDIS-91-6-0705. 30780479. free.
• Pérez-Sierra. A.. López-García. C.. León. M.. García-Jiménez. J.. Abad-Campos. P.. Jung. T.. Belbahri. L.. Previously unrecorded low-temperature Phytophthora species associated with Quercus decline in a Mediterranean forest in eastern Spain. Forest Pathology. 2013. 331–339. 1437-4781. 10.1111/efp.12037. 43. 4.
• Book: Lamour . Kurt. . Phytophthora : a global perspective . 2013 . CAB International . Cambridge, MA . 978-1-78064-093-8 .

Notes and References

1. Jung. Thomas. Hansen. Everett M.. Winton. Lori. Oswald. Wolfgang. Delatour. Claude. Three new species of Phytophthora from European oak forests. Mycological Research. 106. 4. 2002. 397–411. 0953-7562. 10.1017/S0953756202005622.