Susceptibility of Garden Plants to Phytophthora Root Rot
| Autor: | G. R. G. Clover, Joe N. Perry, Ian A. G. Waghorn, Elizabeth J. Beal, M. G. Cromey |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Phytophthora
0106 biological sciences 0301 basic medicine biology Host (biology) Phytophthora cryptogea food and beverages Plant Science Plants Phytophthora cinnamomi biology.organism_classification 01 natural sciences 03 medical and health sciences 030104 developmental biology Myrtales Botany Root rot Disease Susceptibility Phytophthora plurivora Gardens Agronomy and Crop Science Plant Diseases 010606 plant biology & botany Woody plant |
| Zdroj: | Plant Disease. 105:1610-1620 |
| ISSN: | 1943-7692 0191-2917 |
| DOI: | 10.1094/pdis-04-20-0765-re |
| Popis: | Phytophthora root rot (PRR) is a serious disease of horticultural, forest, and ornamental plant species caused by species of the oomycete genus Phytophthora. Their wide host range makes the choice of resistant plants in the management of the disease difficult. We used the Royal Horticultural Society diagnostic dataset of PRR records from U.K. gardens to compare the susceptibility of different host genera to the disease. The dataset was compared with existing reports of plants recorded as notably resistant or notably susceptible to PRR. An index-based approach was used to separate 177 genera of woody plants into three categories: 85 were low index (0.20: frequently affected). Similarly, genera of nonwoody plants were separated into: 45 low index (0.44). Taxus was the genus with the highest index, while most genera in the Malvales and Ericales were in the high-index group. Most genera in the Myrtales, Fabales, and Monocotyledons were low index. While 30 Phytophthora species were recorded in our study, the wide host range spp., P. plurivora, P. cryptogea, and P. cinnamomi, represented 63% of identifications. P. plurivora was the most common species on woody plants and P. cryptogea on nonwoody plants. These results provide confidence in the use of host resistance as part of the integrated management of PRR. |
| Databáze: | OpenAIRE |
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