Seed transmission of Pseudoperonospora cubensis
- Pseudoperonospora cubensis, an obligate biotrophic oomycete causing devastating foliar disease in species of the Cucurbitaceae family, was never reported in seeds or transmitted by seeds. We now show that P. cubensis occurs in fruits and seeds of downy mildew-infected plants but not in fruits or seeds of healthy plants. About 6.7% of the fruits collected during 2012–2014 have developed downy mildew when homogenized and inoculated onto detached leaves and 0.9% of the seeds collected developed downy mildew when grown to the seedling stage. This is the first report showing that P. cubensis has become seed-transmitted in cucurbits. Species-specific PCR assays showed that P. cubensis occurs in ovaries, fruit seed cavity and seed embryos of cucurbits. We propose that international trade of fruits or seeds of cucurbits might be associated with the recent global change in the population structure of P. cubensis.
| Author: | Yigal Cohen, Avia E. Rubin, Mariana Galperin, Sebastian PlochORCiDGND, Fabian Runge, Marco ThinesORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-353014 |
| DOI: | https://doi.org/10.1371/journal.pone.0109766 |
| ISSN: | 1932-6203 |
| Parent Title (English): | PLoS One |
| Publisher: | PLoS |
| Place of publication: | Lawrence, Kan. |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2014/10/17 |
| Date of first Publication: | 2014/10/17 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2014/11/08 |
| Volume: | 9 |
| Issue: | (10):e109766 |
| Page Number: | 12 |
| Note: | Copyright: © 2014 Cohen et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| HeBIS-PPN: | 366638300 |
| Institutes: | Biowissenschaften / Biowissenschaften |
| Fachübergreifende Einrichtungen / Biodiversität und Klima Forschungszentrum (BiK-F) | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
| Sammlungen: | Universitätspublikationen |
| Sammlung Biologie / Sondersammelgebiets-Volltexte | |
| Licence (German): |  Creative Commons - Namensnennung 4.0 |
