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A long-term study of Phytophthora species in Germany. 1. Phytophthora species which could be definitely identified / Langzeituntersuchungen mit Phytophthora-Arten in Deutschland. 1. Phytophthora-Arten, die definitiv bestimmt werden konnten

Sabine Werres, R. Marwitz, Ute Poerschke and Karin Themann
Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz / Journal of Plant Diseases and Protection
Vol. 108, No. 2 (März 2001), pp. 113-120
Published by: Verlag Eugen Ulmer KG
Stable URL: http://www.jstor.org/stable/43215390
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A long-term study of Phytophthora species in Germany. 1. Phytophthora species which could be definitely identified / Langzeituntersuchungen mit Phytophthora-Arten in Deutschland. 1. Phytophthora-Arten, die definitiv bestimmt werden konnten
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Abstract

Taxonomical investigations with Phytophthora isolates in Germany of the last 14 years are presented in two different publications. The Phytophthora isolates originated from heavily damaged horticultural crops, including nurseries, from trees in forests and in urban horticulture and from soil samples. In part 1, those isolates which could be definitively identified as known Phytophthora species are summarized. Furthermore, a detailed description of the methods used for isolation and for the taxonomical procedure is given. The dominant Phytophthora species which could be isolated were P. nicotianae, P. cactorum, P. citricola, P. cryptogea and P. drechsleri. Furthermore new Phytophthora/host interactions could be detected. With P. cinnamomi, the mating type A1 was first detected in Germany in 1993. In zwei aufeinanderfolgenden Veröffentlichungen werden Erfahrungen mit Phytophthora in Deutschland während der letzten 14 Jahre zusammengefasst. Die Phytophthora-Isolate stammen von stark geschädigten gartenbaulichen Kulturen, einschließlich Baumschulen, von Bäumen an Waldstandorten und aus dem Öffentlichen Grün sowie aus Bodenproben. In Teil I sind die Isolate zusammengefasst, die eindeutig als eine bekannte Phytophthora-An bestimmt werden konnten. Es wurden hauptsächlich die folgenden Arten isoliert: P. nicotianae, P. cactorum, P. citricola, P. cryptogea und P. drechsleri. Darüber hinaus traten neue Win/Phytophthora-Kombinationen auf. Von P. cinnamomi wurde der mating type A1 das erste Mal 1993 in Deutschland entdeckt.

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