CONSEQUENCES OF LONG-TERM CROPPING WITH RESISTANT CULTIVARS ON THE POPULATION DYNAMICS OF THE ENDOPARASITIC NEMATODES HETERODERA AVENAE AND PRATYLENCHUSNEGLECTUS IN A CEREAL PRODUCTION ECOSYSTEM BY R. RIVOAL1), F. LASSERRE2) and R. COOK3) 1) Institut National de la Recherche Agronomique
UNTERSUCHUNGEN ÜBER DEN WANDERNDEN WURZEL- NEMATODEN PRATYLENCHUSNEGLECTUS AN FUTTERGRÄSERN VON THEO WETZEL Institut für Phytopathologie der Karl-Marx-Universität Leipzig, Deutsche Demokratische Republik Der wandernde Wurzelnematode Pratylenchusneglectus befällt alle wichtigen, zur Samengewin
studies. Nematode collection and culture Meloidogyne incognita was collected from an infested tomato field located in the city of Shahriar, Tehran province, Iran; Pratylenchusneglectus was collected from a corn field located in city of Karaj, Alborz province, Iran, and A. avenae was recovered from a
several species of PPN with different life strategies, including M. hapla , M. incognita (sedentary endoparasite), Pratylenchusneglectus (migratory endoparasite) and Hemicycliophora conida (migratory ectoparasite). In a split-root system with tomato plants, it was tested whether the suppressive
among treatments (Table 2). Table 2. Values (mean ± SD) of the Maturity and Soil Food Web Indices, Metabolic Footprints, Nematode Abundance, Taxa Richness, Shannon’s Diversity Index, and Pratylenchusneglectus abundance in each treatment at the final soil sampling. Organic matter decomposition and
(%) according to the health status of the plants (damaged or not) and to their infection level (0 = absence; + = low; ++ = moderate; +++ = high) for the three main species Pratylenchusneglectus , Heterodera cruciferae and Meloidogyne artiellia . N is the number of analysed couples of undamaged and
( 1991 ).
Differential pathogenicity of four Pratylenchusneglectus populations on alfalfa .
Journal of Nematology
380 - 385 .
( 2010 ).
The role of pseudo-endoglucanases in the evolution of nematode cell wall
nativus apparently caused economic damage to wheat near Wyalkatchem, Western Australia. Plants in large areas of poor growth were colonised by R. nativus , whereas in areas of better growth Pratylenchusneglectus occurred at lower population densities. The boundary between the areas was distinct. In the
distributed over 25 genera were associated with pastures and grasslands in southern Spain. Paratylenchus species ( P. microdorus , P. similis , P. nanus and P. ciccaronei ) were the most abundant and prevalent plant-parasitic nematodes found. Pratylenchusneglectus and P. thornei were widely distributed in 55
were in Eskisehir Province in the Central Anatolian region, one location was in Amasya, Corum and Tokat provinces in the Black Sea region and one location was in Tekirdag Province in the Marmara region. Pratylenchusneglectus was found in three locations (0.9% of samples) using the PNEG primer set