English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/9758
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Pathogenicity and host-parasite relationships of the root-knot nematode Meloidogyne incognita on celery

AuthorsVovlas, Nicola; Lucarelli, G.; Sasanelli, N.; Troccoli, Alberto; Papajova, I.; Palomares Rius, Juan E. ; Castillo, Pablo
KeywordsApium graveolens
Histopathology
Nematode reproduction
Root-knot nematode
Threshold level
Issue Date27-Mar-2008
PublisherBritish Society for Plant Pathology
Blackwell Publishing
CitationPlant Pathology 57(5): 981-987 (2008)
AbstractPathogenicity and host-parasite relationships in root-knot disease of celery (Apium graveolens) caused by Meloidogyne incognita race 1 were studied under glasshouse conditions. Naturally and artificially infected celery cv. D'elne plants showed severe yellowing and stunting, with heavily deformed and damaged root systems. Nematode-induced mature galls were spherical and/or ellipsoidal and commonly contained more than one female, males and egg masses with eggs. Feeding sites were characterized by the development of giant cells that contained granular cytoplasm and many hypertrophied nuclei. The cytoplasm of giant cells was aggregated along their thickened cell walls and consequently the vascular tissues within galls appeared disrupted and disorganized. The relationship between initial nematode population density (Pi) and growth of celery plants was tested in glasshouse experiments with inoculum levels that varied from 0 to 512 eggs and second-stage juveniles (J2) mL−1 soil. Seinhorst's model y = m + (1 – m)z^(P–T) was fitted to height and top fresh weight data of the inoculated and control plants. The tolerance limit with respect to plant height and fresh top weight of celery to M. incognita race 1 was estimated as 0·15 eggs and J2 mL−1 soil. The minimum relative values (m) for plant height and top fresh weight were 0·37 and 0·35, respectively, at Pi ≥ 16 eggs and J2 mL−1 soil. The maximum nematode reproduction rate (Pf/Pi) was 407·6 at an initial population density (Pi) of 4 eggs and J2 mL−1 soil.
Description7 pages, 2 figures.
Publisher version (URL)http://dx.doi.org/10.1111/j.1365-3059.2008.01843.x
URIhttp://hdl.handle.net/10261/9758
DOI10.1111/j.1365-3059.2008.01843.x
ISSN0032-0862
Appears in Collections:(IAS) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.