In planta and in vitro interactions between Phomopsis (Diaporthe) isolates and sunflower
In this study, we determined the amount of H2O2 released by sunflower callus cultures challenged by both crude hyphal wall extracts and culture filtrates of 26 Phomopsis isolates from sunflower of worldwide origin (Argentina, France, Italy, Yugoslavia, Rumania). The amount of H2O2 released by callus...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Academy of Agricultural Sciences
2002-12-01
|
| Series: | Plant Protection Science |
| Subjects: | |
| Online Access: | https://pps.agriculturejournals.cz/artkey/pps-200211-0064_in-planta-and-in-vitro-interactions-between-x202f-phomopsis-diaporthe-isolates-and-sunflower.php |
| _version_ | 1797898617480019968 |
|---|---|
| author | A.M. Pennisi M.R. Abenavoli B. Maimone L. Di Dio |
| author_facet | A.M. Pennisi M.R. Abenavoli B. Maimone L. Di Dio |
| author_sort | A.M. Pennisi |
| collection | DOAJ |
| description | In this study, we determined the amount of H2O2 released by sunflower callus cultures challenged by both crude hyphal wall extracts and culture filtrates of 26 Phomopsis isolates from sunflower of worldwide origin (Argentina, France, Italy, Yugoslavia, Rumania). The amount of H2O2 released by callus cultures and the production time-course response, however, did not correlate with both the amount of electrolytes released by sunflower leaf disks treated with crude culture filtrates and the results of pathogenicity tests on sunflower seedlings. Only few isolates induced a time-course response indicative of an oxidative burst. This would suggest that elicitors extracted from hyphal walls are not involved in this host-pathogen recognition system and toxic metabolites produced by Phomopsis in liquid cultures are not pathogenicity factors. |
| first_indexed | 2024-04-10T08:16:02Z |
| format | Article |
| id | doaj.art-33ecb697f12c48e28db39d9e49c11df9 |
| institution | Directory Open Access Journal |
| issn | 1212-2580 1805-9341 |
| language | English |
| last_indexed | 2024-04-10T08:16:02Z |
| publishDate | 2002-12-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant Protection Science |
| spelling | doaj.art-33ecb697f12c48e28db39d9e49c11df92023-02-23T03:43:40ZengCzech Academy of Agricultural SciencesPlant Protection Science1212-25801805-93412002-12-0138SI 2 - 6th Conf EFPP46146510.17221/10524-PPSpps-200211-0064In planta and in vitro interactions between Phomopsis (Diaporthe) isolates and sunflowerA.M. Pennisi0M.R. Abenavoli1B. Maimone2L. Di Dio3degli Studi Mediterranea di Reggio Calabria, 89061 Gallina, Reggio Calabria, Italydegli Studi Mediterranea di Reggio Calabria, 89061 Gallina, Reggio Calabria, Italydegli Studi Mediterranea di Reggio Calabria, 89061 Gallina, Reggio Calabria, Italydegli Studi Mediterranea di Reggio Calabria, 89061 Gallina, Reggio Calabria, ItalyIn this study, we determined the amount of H2O2 released by sunflower callus cultures challenged by both crude hyphal wall extracts and culture filtrates of 26 Phomopsis isolates from sunflower of worldwide origin (Argentina, France, Italy, Yugoslavia, Rumania). The amount of H2O2 released by callus cultures and the production time-course response, however, did not correlate with both the amount of electrolytes released by sunflower leaf disks treated with crude culture filtrates and the results of pathogenicity tests on sunflower seedlings. Only few isolates induced a time-course response indicative of an oxidative burst. This would suggest that elicitors extracted from hyphal walls are not involved in this host-pathogen recognition system and toxic metabolites produced by Phomopsis in liquid cultures are not pathogenicity factors.https://pps.agriculturejournals.cz/artkey/pps-200211-0064_in-planta-and-in-vitro-interactions-between-x202f-phomopsis-diaporthe-isolates-and-sunflower.phpphomopsis helianthidiaporthe helianthiphomopsis stem cankersunowerpathogenicityreactive oxygen specieshydrogen peroxide |
| spellingShingle | A.M. Pennisi M.R. Abenavoli B. Maimone L. Di Dio In planta and in vitro interactions between Phomopsis (Diaporthe) isolates and sunflower Plant Protection Science phomopsis helianthi diaporthe helianthi phomopsis stem canker sun ower pathogenicity reactive oxygen species hydrogen peroxide |
| title | In planta and in vitro interactions between Phomopsis (Diaporthe) isolates and sunflower |
| title_full | In planta and in vitro interactions between Phomopsis (Diaporthe) isolates and sunflower |
| title_fullStr | In planta and in vitro interactions between Phomopsis (Diaporthe) isolates and sunflower |
| title_full_unstemmed | In planta and in vitro interactions between Phomopsis (Diaporthe) isolates and sunflower |
| title_short | In planta and in vitro interactions between Phomopsis (Diaporthe) isolates and sunflower |
| title_sort | in planta and in vitro interactions between phomopsis diaporthe isolates and sunflower |
| topic | phomopsis helianthi diaporthe helianthi phomopsis stem canker sun ower pathogenicity reactive oxygen species hydrogen peroxide |
| url | https://pps.agriculturejournals.cz/artkey/pps-200211-0064_in-planta-and-in-vitro-interactions-between-x202f-phomopsis-diaporthe-isolates-and-sunflower.php |
| work_keys_str_mv | AT ampennisi inplantaandinvitrointeractionsbetweenphomopsisdiaportheisolatesandsunflower AT mrabenavoli inplantaandinvitrointeractionsbetweenphomopsisdiaportheisolatesandsunflower AT bmaimone inplantaandinvitrointeractionsbetweenphomopsisdiaportheisolatesandsunflower AT ldidio inplantaandinvitrointeractionsbetweenphomopsisdiaportheisolatesandsunflower |