Xiphinema simile (Nematoda: Longidoridae) in the Czech Republic and a note on other Xiphinema species

Abstract

43 SummaryA nematode survey was carried out in South Moravia and Bohemia (Czech Republic) to assess the occurrence of Xiphinema in the rhizosphere of fruit orchards. Sixty six orchards in South Moravia and seven in Bohemia were studied during the years 2003 and 2004. Four Xiphinema species (X. diversicaudatum, X. pachtaicum, X. simile and X. vuittenezi) were recorded. X. simile constitutes a first record for the nematodes fauna of the Czech Republic.

Composition and vertical distribution of free living and plant parasitic nematodes in hop gardens in the Czech Republic

“…The values of PPI/MI ratio in hop gardens varied from 1.14 -1.59, which indicates habitats where higher plants started to make non-optimal use of nutrient or nutrient disturbances (Bongers et al, 1997). Similar results were found in hop gardens in Slovakia (Lišková & Renčo, 2007) or in sugar beet or cereals fields (Renčo, 2002(Renčo, , 2003, while in the grass ecosystems lower values of PPI/MI ratio were found (Valocká et al, 2001;Lišková & Čerevková, 2005). The great abundance of bacterivores, high values of NCR, high values of EI, and low values of CI could indicate relatively greater participation of bacteria in the breakdown of soil organic matter (Ferris et al, 2001), although we would instead expect a decomposition pathway more dominated by fungi and fungivores in perennial crops (Neher & Campbell, 1994).…”

“…No one is referred from Slovakia or from Tasmania (Lišk-ová & Renčo, 2007;Hay & Pethybridge, 2003). The low occurrence of virus-vector nematode species in Czech hop gardens in comparisons with Czech vineyards or fruit orchards (Erbenová, 1975;Kumari, 2006) can be explained (as in the case of Criconematidae) by the different sorts and types of soil, the low number of soil samples or nonsuitable sampling patterns for virus-vector nematodes. Hay and Close (1992) found X. diversicaudatum in 31 from 240 diagnosed samples collected in hop gardens from which 28 were taken at the edge of fields.…”

Morphological characterisation and diagnostics of Xiphinema non-americanum group species (Nematoda: Longidoridae) from Romania using mutiplex PCR

“…The spicules are in the ranges reported for this species except for the specimens from Bulgaria (Peneva & Choleva, 1992) characterised with the shortest spicules recorded so far. Our observations on the juvenile stages confirmed the findings of Barsi and Lamberti (2000a) concerning the tail shape of the second stage juvenile -dorsally convex conoid (following the nomenclature by Coomans et al, 2001) in British population and elongate conoid in our population and previously reported data on juvenile stages from Serbia and Czech Republic (Barsi & Lamberti, 2000b, Kumari, 2006. It is worth mentioning that the second stage juvenile has longer tail compared to other stages and adults in above mentioned populations, not so in those from Britain (Goodey et al, 1960), which also is specific in its great body and odontostyle size.…”

“…The specimens in the present study are characterised by its rather small size (2.8, 3.6 mm). The odontostyle is shorter compared to the population of X. diversicaudatum from Britain (Goodey et al, 1960) and some Italian populations (Roca et al, 1988, Roca & Lamberti, 1993 and is more similar to the most populations reported from other European countries, South Africa and USA (Thorne, 1939;Sturhan, 1963;Heyns & Coomnas, 1984;Lamberti et al, 1999;Barsi & Lamberti, 2000b;Kumari, 2006). The spicules are in the ranges reported for this species except for the specimens from Bulgaria (Peneva & Choleva, 1992) characterised with the shortest spicules recorded so far.…”

Distribution and morphometrical characterization of Xiphinema pachtaicum, X. simile and X. brevicollum from Hungary

“…HELMINTHOLOGIA, 45, 2: 96 -102, 2008 Distribution and morphometrical characterization of Xiphinema pachtaicum, X. simile and X. brevicollum from Hungary Mean and range of the measured values were recorded for several morphometrical characters relevant for determination of the encountered species (e.g. Barsi, 1994;Kumari, 2006;Lamberti et al, 2000Lamberti et al, , 2004Luc et al, 1998). The Hungarian specimens were compared with measurements of the topotypes of X. brevicollum (Luc et al, 1998) and original type material of X. pachtaicum and X. simile.…”