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Volume 54 (2017): Edizione 4 (December 2017)
Special Edizione: This issue is dedicated to the memory of Milan Ryboš, DVM, D.Sc.

Volume 54 (2017): Edizione 3 (September 2017)

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Volume 43 (2006): Edizione 2 (June 2006)

Volume 43 (2006): Edizione 1 (March 2006)

Dettagli della rivista
Formato
Rivista
eISSN
1336-9083
ISSN
0440-6605
Pubblicato per la prima volta
22 Apr 2006
Periodo di pubblicazione
4 volte all'anno
Lingue
Inglese

Cerca

Volume 43 (2006): Edizione 3 (June 2006)

Dettagli della rivista
Formato
Rivista
eISSN
1336-9083
ISSN
0440-6605
Pubblicato per la prima volta
22 Apr 2006
Periodo di pubblicazione
4 volte all'anno
Lingue
Inglese

Cerca

12 Articoli
access type Accesso libero

The content of carbohydrates in larval stages of Anisakis simplex (Nematoda, Anisakidae)

Pubblicato online: 01 Jun 2006
Pagine: 125 - 129

Astratto

Abstract

The content of carbohydrates in L3 and L4 larvae of Anisakis simplex (defined by Rokicki J.) was studied. Glycogen and trehalose were their major reserve sugars. The concentration of saccharides in L4 larvae was 2–3-times higher than in L3 larvae. The content of glycogen was 3.68 ± 1.24 mg/g tissue in L3 larvae and 11.68 ± 1.21 mg/g tissue in L4 larvae. Trehalose represented 16.17 % of soluble sugars in L3 larvae and 43.04 % in L4 larvae. The contents of maltose, higher polymers of glucose (1.5-times) and myoinositol (1.2-times) in L4 were higher than in L3 larvae. After starving the L3 larvae of the parasite for 48 h at 4°C, the contents of trehalose increased 5-fold and that of glycogen by 20 %, while at 37°C the contents of glycogen was ca. 30 % higher and that of trehalose 40 % less than in larvae freshly isolated from the host (p < 0.01). The data obtained during starving the L3 larvae of A. simplex may be a consequence the role of trehalose as protective compound at stress condition. We suggest that probably in higher temperatures it acts as first a source of energy, and it also might serve to restore the levels of glycogen.

Parole chiave

  • Anisakis simplex
  • trehalose
  • glycogen
  • carbohydrates
access type Accesso libero

Changes in trehalase activity and trehalose level during Ascaris suum (Nematoda) embryogenesis

Pubblicato online: 01 Jun 2006
Pagine: 130 - 133

Astratto

Abstract

The levels of trehalose and the activity of trehalase during the development of Ascaris suum eggs were investigated. The level of trehalose in the zygote was high (2.96 ± 0.07 mg/g). During cleavage of eggs, it decreased (0.91 ± 0.35 mg/g). A higher concentration of the sugar was recorded at the blastula and during gastrulation, but it did not reach the uncleaved eggs level. In the early motile larvae, the concentration of trehalose was high (4.58 ± 2.01 mg/g). It decreased with development of L1 larvae (3.10 ± 1.47 mg/g). A rapid increase in trehalose reserves was observed between the L1 and L2 stages. The highest content of trehalose was found in invasive L2 larvae (5.78 ± 1.39 mg/g).

The activity of trehalase at the zygote stage was high (560.22 ± 322.31 U/mg). It decreased at the beginning of cleavage. It was the lowest at the 4–6-cell stage (189.76 ± 114.97 U/mg). An increase in the enzyme activity occurred after reaching the blastula stage (348.44 ± 343.34 U/mg). The highest trehalase activity was recorded during the L1 larvae stage (635.72 ± 251.16 U/mg). The activity of that enzyme was about three times lower in the invasive stage larvae than in the L1 larvae.

Parole chiave

  • trehalose
  • trehalase
  • glycogen
  • embryogenesis
  • Ascaris suum
  • nematode
access type Accesso libero

Foraging height levels and the risk of gastro-intestinal tract parasitic infections of wild ungulates in an African savannah eco-system

Pubblicato online: 01 Jun 2006
Pagine: 134 - 138

Astratto

Abstract

Grazing herbivores mainly feed at low feeding height levels, while browsers select food items above ground level. Previous studies on gastrointestinal tract (GIT) nematode parasite burdens of African ungulates have suggested that browsing species hereby minimise the risk of infection with parasites. Here, we investigated the influence of feeding height levels on the pasture larval contamination level (PCL) in a natural African savannah eco-system in Queen Elizabeth National Park, western Uganda. The prevalence and mean abundance of infectious GIT nematode larvae on the pasture were used as measures of pasture contamination. Vegetation samples were examined following standard larval isolation, concentration and counting techniques. We found the feeding height level to be significantly related to the occurrence of infectious GIT nematode larvae, and the contamination was highest at low feeding levels. There was no statistically significant seasonal variation in the prevalence or mean abundance of the contamination of pastures with nematode larvae.

Parole chiave

  • African ungulates
  • bushbuck
  • GIT nematode larvae
  • pasture contamination
  • Uganda
access type Accesso libero

Parasitic helminths from feral raccoons (Procyon lotor) in Japan

Pubblicato online: 01 Jun 2006
Pagine: 139 - 146

Astratto

Abstract

An epidemiological survey of 1688 free-ranging raccoons (Procyon lotor) captured on the Japanese main islands of Hokkaido, Honshu and Kyushu was undertaken to determine whether Baylisascaris procyonis, which provokes fatal neurological larva migrans was present; however, the worm was not detected in any of these individuals. A helminthological investigation was carried out on 229 of the captured racoons and the following worms obtained: Toxocara tanuki, Porrocaecum sp., Molineus legerae, Ancylostoma kushimaense, Aonchotheca putorii, Centrorhynchus sp., Centrorhynchus bazaleticus, C. elongatum, Plagiorhynchidae gen sp., Hemiechinosoma sp., Metagonimus takahashii, M. miyatai, Euparyphium sp., Plagiorchis muris, Brachylaima sp., and Taenia hydatigena. These were the first records of Porrocaecum sp., M. miyatai, Brachylaima sp. and T. hydatigena obtained from Japanese feral raccoons. Scanning electron microscopic and/or molecular analyses were performed for both T. tanuki and T. hydatigena as these helminths both have a zoonotic counterpart amongst their families.

Parole chiave

  • parasitic helminths
  • Procyon lotor
  • Japan
access type Accesso libero

Digenetic trematodes of marine fishes from the Arabian Gulf off the coast of Kuwait. Family Bucephalidae Poche, 1907, and the description of a new species

Pubblicato online: 01 Jun 2006
Pagine: 147 - 157

Astratto

Abstract

Six species of Bucephalidae are reported: Subfamily Bucephalinae: Bucephalus sphyraenae Yamaguti, 1952 from Sphyraena obtusata and S. chrysotaenia (Sphyraenidae) (new host records); Bucephalus margaritae Ozaki and Ishibashi, 1934 from Atropus atropos, Scomberoides commersonianus, Carangoides malabaricus (Carangidae), Gerres filamentosus (Gerreidae) (new host record) and Sphyraena jello (new host record); Rhipidocotyle pseudorhombi n. sp. from Pseudorhombus arsius is characterized by and differs from its congeners by several characteristics including an elongate body, a rhynchus with 7 thin papillae, a long tuular caecum extending posteriorly to the ovarian level, goads in the posterior half of the body, and contiguous testes not separated by uterine coils. More specifically it differs from R. heptathelata and R. septapapillata by having a long cirrus sac relative to body length, tandem and more anterior testes. Subfamily Prosorhynchinae: Prosorhynchus pacificus Manter, 1940 from Epinephelus tauvina (Serranidae) and Gnathonodon speciosus (Carangidae) (new host record); P. epinepheli Yamaguti, 1939 from Epinephelus areolatus; P. manteri Srivastava, 1938 from Trichiurus lepturus (Trichiuridae). All species, except Prosorhynchus epinepheli represent new records from the Arabian Gulf.

Parole chiave

  • Arabian Gulf
  • Kuwaiti coast
  • marine fishes
  • digenetic trematodes
  • Bucephalidae
  • Bucephalinae
  • Bucephalus
  • Rhipidocotyle
  • Prosorhynchinae
  • Prosorhynchus
access type Accesso libero

Nematode parasites of the characid fish Brycon hilarii from the River Juba, Mato Grosso, Brazil

Pubblicato online: 01 Jun 2006
Pagine: 158 - 160

Astratto

Abstract

Specimens of the characid fish Brycon hilarii collected in dry and wet seasons in the River Juba, Tangará da Serra, State of Mato Grosso, Brazil, were surveyed for nematode parasites. Contracaecum sp. Type 1 and Type 2 larvae of Moravec, Kohn et Fernandes, 1993 were detected in the mesentery and liver, and Neocucullanus neocucullanus and Procamallanus (Spirocamallanus) inopinatus were observed in the intestine and pyloric caeca 75% of the nematodes were detected in the wet season. This is the first report of fish parasites from the River Juba and of the occurrence of Contracaecum larvae in B. hilarii.

Parole chiave

  • characid fish
  • Brycon hilarii
  • nematodes
  • Brazil
access type Accesso libero

Digenetic trematodes of some teleost fish off the Mudanya Coast (Sea of Marmara, Turkey)

Pubblicato online: 01 Jun 2006
Pagine: 161 - 167

Astratto

Abstract

A total of 200 fishes belonging to nine species were sampled from the Sea of Marmara. Thirteen trematode species were recorded in the intestine of these hosts: Helicometra fasciata and Diphterostomum brusinae in Zosterisessor ophiocephalus; Monascus filiformis in Trachurus trachurus; Dicrogaster purpusilla, Schikhobalotrema sparisomae and Sacccocoelium obesum in Liza saliens; Macvicaria alacris, H. fasciata and Gaevskajatrema perezi in Symphodus tinca; Anisocladium fallax and A. capitellum in Uranoscopus scaber; Stephanostomum caducum in Merluccius merluccius; Bucephalus marinus, Stephanostomum gaidropsari and H. fasciata in Gaidopsarus mediterraneus; H. fasciata in Scorpaena scrofa and Gobius cobitis.

Parole chiave

  • helminths
  • Digenea
  • Mudanya
  • Sea of Marmara
  • Turkey
access type Accesso libero

Influence of the root-knot nematode Meloidogyne incognita r. 1 on growth of grapevine

Pubblicato online: 01 Jun 2006
Pagine: 168 - 170

Astratto

Abstract

The effect of Meloidogyne incognita race 1 at different population densities (0, 0.0625, 0.125, 0.25,... 256 eggs and juveniles/cm3 soil) on the growth of a rootstock (1103 Paulsen) and a cv. Italia of grapevine was studied in glasshouse experiment. One-year-old, self-rooted plants were transplanted into 1,200 cm3 plastic pots containing soil infested by M. incognita race 1 at different inoculum levels. Reproduction of M. incognita race 1 was significantly higher on cv. Italia than on the rootstock 1103 Paulsen. Tolerance limits (T) of 1.28 and 0.78 eggs and juveniles/cm3 soil were estimated respectively for 1103 Paulsen and Italia. Minimum relative plant growth of 0.55, 0.80 and 0.85, respectively for shoot length and node number increase and fresh top weight, were estimated for 1103 Paulsen; whereas values of 0.25, 0.50 and 0.60 were assessed for the cv. Italia. Nematode equilibrium density was 33.6 and 137.8 eggs and juveniles/cm3 soil, on 1103 Paulsen and Italia, respectively.

Parole chiave

  • Meloidogyne incognita race 1
  • pathogenicity
  • grapevine
  • rootstock
  • cultivar
access type Accesso libero

Nematode communities in three types of grassland in the Slovak Republic

Pubblicato online: 01 Jun 2006
Pagine: 171 - 176

Astratto

Abstract

Nematode communities were studied and compared in three different types of grassland throughout the Slovak Republic: new meadow (established during last 3 years), permanent meadow and permanent pasture. A total of 85 nematode species from 64 genera were found. The identified nematode species belonged mainly to the orders Tylenchida (31), Dorylaimida (22), and Rhabditida (12). The most abundant species were Helicotylenchus digonicus, Rhabditis spp., Filenchus filiformis and Enchodelus macrodorus in new meadows, H. digonicus and E. macrodorus in permanent meadows and H. digonicus and Aporcelaimellus obtusicaudatus in permanent pastures. Plant parasitic nematodes were dominant in all investigated types of grassland, followed by bacterial feeders in new meadows and omnivores in permanent meadows and pastures. Maturity index (MI) and B/F depended with the age of grassland and thus with succession from newly established meadows to permanent meadows and permanent pastures. Nematode communities were more similar in permanent meadows and pastures than in new meadows and were also influenced by geographic condition.

Parole chiave

  • nematode communities
  • grassland
  • Slovak Republic
access type Accesso libero

Tetrameres (Tetrameres) nouveli bodrogensis n. ssp. (Spirurata) and other nematodes of three species of shorebirds (Charadriiformes) in the Slovak Republic

Pubblicato online: 01 Jun 2006
Pagine: 177 - 185

Astratto

Abstract

Eight taxons of nematode parasites were recovered from three species of charadriid shorebirds (Charadriiformes) from Slovakia: common ringed plover — Charadrius hiaticula (L.) (No=9), little ringed plover — Charadrius dubius Scop., 1786 (No=56) and golden plover — Pluvialis apricaria (L.)(No=14). New host record (Ch.dubius) were registered for Tetrameres (Tetrameres) nouveli (Seurat, 1914), described as so far unknown Tetrameres (T.) nouveli bodrogensis n. ssp. New data on Victorocara charadrii Belopolskaja, 1953 have been pointed out. Besides the taxons mentioned above, the following species were registered: Eucoleus contorta, Eucoleus obtusiuscula and in Slovakia so far not described Capillaria limicolae, Tetrameres (T.) sp., Capillaridae gen. sp. and Anisakidae gen. sp.

Parole chiave

  • Nematoda
  • Tetrameres (T.) nouveli bodrogensis n. ssp
  • Victorocara charadrii
  • Charadriiformes
  • Charadrius dubius
  • Charadrius hiatricula
  • Pluvialis apricaria
  • Slovak Republic
access type Accesso libero

Occurrence of Xiphinema species in grapevine areas of Tyrnavos with comments on the distribution of X. italiae in Greece

Pubblicato online: 01 Jun 2006
Pagine: 186 - 187

Astratto

Abstract

A survey for presence of Xiphinema species was undertaken in the viticulture areas of Tyrnavos, Thessally, Greece. Soil samples were collected from existing vineyards and from fields where grapevines had been uprooted and were currently under fallow or a cereal crop. The species X. index, X. italiae and X. pachtaicum were present in 37% of the samples with a prevalence of the last two species in uprooted fields. The occurrence of X. italiae in association with light sandy soils is discussed and compared with similar findings from other Greek grapevine areas.

Parole chiave

  • Xiphinema index
  • X. pachtaicum
  • X. italiae
  • vineyards
  • Greece
access type Accesso libero

First record of three nematode species in Slovakia with new data on their morphology

Pubblicato online: 01 Jun 2006
Pagine: 188 - 190

Astratto

Abstract

During a survey of the nematode fauna of river bank vegetation in the central and south eastern regions of the Slovakia three species were found which are all new records for the country viz. Aulolaimus nannocephalus Andrássy, 1972, Hemicycliophora aberrans Thome, 1955 and Paratylenchus paramonovi Bagaturia & Solovyova in Solovyova, 1972.

Parole chiave

  • Nematode species
  • new records
  • riverbank vegetation
  • Slovakia
12 Articoli
access type Accesso libero

The content of carbohydrates in larval stages of Anisakis simplex (Nematoda, Anisakidae)

Pubblicato online: 01 Jun 2006
Pagine: 125 - 129

Astratto

Abstract

The content of carbohydrates in L3 and L4 larvae of Anisakis simplex (defined by Rokicki J.) was studied. Glycogen and trehalose were their major reserve sugars. The concentration of saccharides in L4 larvae was 2–3-times higher than in L3 larvae. The content of glycogen was 3.68 ± 1.24 mg/g tissue in L3 larvae and 11.68 ± 1.21 mg/g tissue in L4 larvae. Trehalose represented 16.17 % of soluble sugars in L3 larvae and 43.04 % in L4 larvae. The contents of maltose, higher polymers of glucose (1.5-times) and myoinositol (1.2-times) in L4 were higher than in L3 larvae. After starving the L3 larvae of the parasite for 48 h at 4°C, the contents of trehalose increased 5-fold and that of glycogen by 20 %, while at 37°C the contents of glycogen was ca. 30 % higher and that of trehalose 40 % less than in larvae freshly isolated from the host (p < 0.01). The data obtained during starving the L3 larvae of A. simplex may be a consequence the role of trehalose as protective compound at stress condition. We suggest that probably in higher temperatures it acts as first a source of energy, and it also might serve to restore the levels of glycogen.

Parole chiave

  • Anisakis simplex
  • trehalose
  • glycogen
  • carbohydrates
access type Accesso libero

Changes in trehalase activity and trehalose level during Ascaris suum (Nematoda) embryogenesis

Pubblicato online: 01 Jun 2006
Pagine: 130 - 133

Astratto

Abstract

The levels of trehalose and the activity of trehalase during the development of Ascaris suum eggs were investigated. The level of trehalose in the zygote was high (2.96 ± 0.07 mg/g). During cleavage of eggs, it decreased (0.91 ± 0.35 mg/g). A higher concentration of the sugar was recorded at the blastula and during gastrulation, but it did not reach the uncleaved eggs level. In the early motile larvae, the concentration of trehalose was high (4.58 ± 2.01 mg/g). It decreased with development of L1 larvae (3.10 ± 1.47 mg/g). A rapid increase in trehalose reserves was observed between the L1 and L2 stages. The highest content of trehalose was found in invasive L2 larvae (5.78 ± 1.39 mg/g).

The activity of trehalase at the zygote stage was high (560.22 ± 322.31 U/mg). It decreased at the beginning of cleavage. It was the lowest at the 4–6-cell stage (189.76 ± 114.97 U/mg). An increase in the enzyme activity occurred after reaching the blastula stage (348.44 ± 343.34 U/mg). The highest trehalase activity was recorded during the L1 larvae stage (635.72 ± 251.16 U/mg). The activity of that enzyme was about three times lower in the invasive stage larvae than in the L1 larvae.

Parole chiave

  • trehalose
  • trehalase
  • glycogen
  • embryogenesis
  • Ascaris suum
  • nematode
access type Accesso libero

Foraging height levels and the risk of gastro-intestinal tract parasitic infections of wild ungulates in an African savannah eco-system

Pubblicato online: 01 Jun 2006
Pagine: 134 - 138

Astratto

Abstract

Grazing herbivores mainly feed at low feeding height levels, while browsers select food items above ground level. Previous studies on gastrointestinal tract (GIT) nematode parasite burdens of African ungulates have suggested that browsing species hereby minimise the risk of infection with parasites. Here, we investigated the influence of feeding height levels on the pasture larval contamination level (PCL) in a natural African savannah eco-system in Queen Elizabeth National Park, western Uganda. The prevalence and mean abundance of infectious GIT nematode larvae on the pasture were used as measures of pasture contamination. Vegetation samples were examined following standard larval isolation, concentration and counting techniques. We found the feeding height level to be significantly related to the occurrence of infectious GIT nematode larvae, and the contamination was highest at low feeding levels. There was no statistically significant seasonal variation in the prevalence or mean abundance of the contamination of pastures with nematode larvae.

Parole chiave

  • African ungulates
  • bushbuck
  • GIT nematode larvae
  • pasture contamination
  • Uganda
access type Accesso libero

Parasitic helminths from feral raccoons (Procyon lotor) in Japan

Pubblicato online: 01 Jun 2006
Pagine: 139 - 146

Astratto

Abstract

An epidemiological survey of 1688 free-ranging raccoons (Procyon lotor) captured on the Japanese main islands of Hokkaido, Honshu and Kyushu was undertaken to determine whether Baylisascaris procyonis, which provokes fatal neurological larva migrans was present; however, the worm was not detected in any of these individuals. A helminthological investigation was carried out on 229 of the captured racoons and the following worms obtained: Toxocara tanuki, Porrocaecum sp., Molineus legerae, Ancylostoma kushimaense, Aonchotheca putorii, Centrorhynchus sp., Centrorhynchus bazaleticus, C. elongatum, Plagiorhynchidae gen sp., Hemiechinosoma sp., Metagonimus takahashii, M. miyatai, Euparyphium sp., Plagiorchis muris, Brachylaima sp., and Taenia hydatigena. These were the first records of Porrocaecum sp., M. miyatai, Brachylaima sp. and T. hydatigena obtained from Japanese feral raccoons. Scanning electron microscopic and/or molecular analyses were performed for both T. tanuki and T. hydatigena as these helminths both have a zoonotic counterpart amongst their families.

Parole chiave

  • parasitic helminths
  • Procyon lotor
  • Japan
access type Accesso libero

Digenetic trematodes of marine fishes from the Arabian Gulf off the coast of Kuwait. Family Bucephalidae Poche, 1907, and the description of a new species

Pubblicato online: 01 Jun 2006
Pagine: 147 - 157

Astratto

Abstract

Six species of Bucephalidae are reported: Subfamily Bucephalinae: Bucephalus sphyraenae Yamaguti, 1952 from Sphyraena obtusata and S. chrysotaenia (Sphyraenidae) (new host records); Bucephalus margaritae Ozaki and Ishibashi, 1934 from Atropus atropos, Scomberoides commersonianus, Carangoides malabaricus (Carangidae), Gerres filamentosus (Gerreidae) (new host record) and Sphyraena jello (new host record); Rhipidocotyle pseudorhombi n. sp. from Pseudorhombus arsius is characterized by and differs from its congeners by several characteristics including an elongate body, a rhynchus with 7 thin papillae, a long tuular caecum extending posteriorly to the ovarian level, goads in the posterior half of the body, and contiguous testes not separated by uterine coils. More specifically it differs from R. heptathelata and R. septapapillata by having a long cirrus sac relative to body length, tandem and more anterior testes. Subfamily Prosorhynchinae: Prosorhynchus pacificus Manter, 1940 from Epinephelus tauvina (Serranidae) and Gnathonodon speciosus (Carangidae) (new host record); P. epinepheli Yamaguti, 1939 from Epinephelus areolatus; P. manteri Srivastava, 1938 from Trichiurus lepturus (Trichiuridae). All species, except Prosorhynchus epinepheli represent new records from the Arabian Gulf.

Parole chiave

  • Arabian Gulf
  • Kuwaiti coast
  • marine fishes
  • digenetic trematodes
  • Bucephalidae
  • Bucephalinae
  • Bucephalus
  • Rhipidocotyle
  • Prosorhynchinae
  • Prosorhynchus
access type Accesso libero

Nematode parasites of the characid fish Brycon hilarii from the River Juba, Mato Grosso, Brazil

Pubblicato online: 01 Jun 2006
Pagine: 158 - 160

Astratto

Abstract

Specimens of the characid fish Brycon hilarii collected in dry and wet seasons in the River Juba, Tangará da Serra, State of Mato Grosso, Brazil, were surveyed for nematode parasites. Contracaecum sp. Type 1 and Type 2 larvae of Moravec, Kohn et Fernandes, 1993 were detected in the mesentery and liver, and Neocucullanus neocucullanus and Procamallanus (Spirocamallanus) inopinatus were observed in the intestine and pyloric caeca 75% of the nematodes were detected in the wet season. This is the first report of fish parasites from the River Juba and of the occurrence of Contracaecum larvae in B. hilarii.

Parole chiave

  • characid fish
  • Brycon hilarii
  • nematodes
  • Brazil
access type Accesso libero

Digenetic trematodes of some teleost fish off the Mudanya Coast (Sea of Marmara, Turkey)

Pubblicato online: 01 Jun 2006
Pagine: 161 - 167

Astratto

Abstract

A total of 200 fishes belonging to nine species were sampled from the Sea of Marmara. Thirteen trematode species were recorded in the intestine of these hosts: Helicometra fasciata and Diphterostomum brusinae in Zosterisessor ophiocephalus; Monascus filiformis in Trachurus trachurus; Dicrogaster purpusilla, Schikhobalotrema sparisomae and Sacccocoelium obesum in Liza saliens; Macvicaria alacris, H. fasciata and Gaevskajatrema perezi in Symphodus tinca; Anisocladium fallax and A. capitellum in Uranoscopus scaber; Stephanostomum caducum in Merluccius merluccius; Bucephalus marinus, Stephanostomum gaidropsari and H. fasciata in Gaidopsarus mediterraneus; H. fasciata in Scorpaena scrofa and Gobius cobitis.

Parole chiave

  • helminths
  • Digenea
  • Mudanya
  • Sea of Marmara
  • Turkey
access type Accesso libero

Influence of the root-knot nematode Meloidogyne incognita r. 1 on growth of grapevine

Pubblicato online: 01 Jun 2006
Pagine: 168 - 170

Astratto

Abstract

The effect of Meloidogyne incognita race 1 at different population densities (0, 0.0625, 0.125, 0.25,... 256 eggs and juveniles/cm3 soil) on the growth of a rootstock (1103 Paulsen) and a cv. Italia of grapevine was studied in glasshouse experiment. One-year-old, self-rooted plants were transplanted into 1,200 cm3 plastic pots containing soil infested by M. incognita race 1 at different inoculum levels. Reproduction of M. incognita race 1 was significantly higher on cv. Italia than on the rootstock 1103 Paulsen. Tolerance limits (T) of 1.28 and 0.78 eggs and juveniles/cm3 soil were estimated respectively for 1103 Paulsen and Italia. Minimum relative plant growth of 0.55, 0.80 and 0.85, respectively for shoot length and node number increase and fresh top weight, were estimated for 1103 Paulsen; whereas values of 0.25, 0.50 and 0.60 were assessed for the cv. Italia. Nematode equilibrium density was 33.6 and 137.8 eggs and juveniles/cm3 soil, on 1103 Paulsen and Italia, respectively.

Parole chiave

  • Meloidogyne incognita race 1
  • pathogenicity
  • grapevine
  • rootstock
  • cultivar
access type Accesso libero

Nematode communities in three types of grassland in the Slovak Republic

Pubblicato online: 01 Jun 2006
Pagine: 171 - 176

Astratto

Abstract

Nematode communities were studied and compared in three different types of grassland throughout the Slovak Republic: new meadow (established during last 3 years), permanent meadow and permanent pasture. A total of 85 nematode species from 64 genera were found. The identified nematode species belonged mainly to the orders Tylenchida (31), Dorylaimida (22), and Rhabditida (12). The most abundant species were Helicotylenchus digonicus, Rhabditis spp., Filenchus filiformis and Enchodelus macrodorus in new meadows, H. digonicus and E. macrodorus in permanent meadows and H. digonicus and Aporcelaimellus obtusicaudatus in permanent pastures. Plant parasitic nematodes were dominant in all investigated types of grassland, followed by bacterial feeders in new meadows and omnivores in permanent meadows and pastures. Maturity index (MI) and B/F depended with the age of grassland and thus with succession from newly established meadows to permanent meadows and permanent pastures. Nematode communities were more similar in permanent meadows and pastures than in new meadows and were also influenced by geographic condition.

Parole chiave

  • nematode communities
  • grassland
  • Slovak Republic
access type Accesso libero

Tetrameres (Tetrameres) nouveli bodrogensis n. ssp. (Spirurata) and other nematodes of three species of shorebirds (Charadriiformes) in the Slovak Republic

Pubblicato online: 01 Jun 2006
Pagine: 177 - 185

Astratto

Abstract

Eight taxons of nematode parasites were recovered from three species of charadriid shorebirds (Charadriiformes) from Slovakia: common ringed plover — Charadrius hiaticula (L.) (No=9), little ringed plover — Charadrius dubius Scop., 1786 (No=56) and golden plover — Pluvialis apricaria (L.)(No=14). New host record (Ch.dubius) were registered for Tetrameres (Tetrameres) nouveli (Seurat, 1914), described as so far unknown Tetrameres (T.) nouveli bodrogensis n. ssp. New data on Victorocara charadrii Belopolskaja, 1953 have been pointed out. Besides the taxons mentioned above, the following species were registered: Eucoleus contorta, Eucoleus obtusiuscula and in Slovakia so far not described Capillaria limicolae, Tetrameres (T.) sp., Capillaridae gen. sp. and Anisakidae gen. sp.

Parole chiave

  • Nematoda
  • Tetrameres (T.) nouveli bodrogensis n. ssp
  • Victorocara charadrii
  • Charadriiformes
  • Charadrius dubius
  • Charadrius hiatricula
  • Pluvialis apricaria
  • Slovak Republic
access type Accesso libero

Occurrence of Xiphinema species in grapevine areas of Tyrnavos with comments on the distribution of X. italiae in Greece

Pubblicato online: 01 Jun 2006
Pagine: 186 - 187

Astratto

Abstract

A survey for presence of Xiphinema species was undertaken in the viticulture areas of Tyrnavos, Thessally, Greece. Soil samples were collected from existing vineyards and from fields where grapevines had been uprooted and were currently under fallow or a cereal crop. The species X. index, X. italiae and X. pachtaicum were present in 37% of the samples with a prevalence of the last two species in uprooted fields. The occurrence of X. italiae in association with light sandy soils is discussed and compared with similar findings from other Greek grapevine areas.

Parole chiave

  • Xiphinema index
  • X. pachtaicum
  • X. italiae
  • vineyards
  • Greece
access type Accesso libero

First record of three nematode species in Slovakia with new data on their morphology

Pubblicato online: 01 Jun 2006
Pagine: 188 - 190

Astratto

Abstract

During a survey of the nematode fauna of river bank vegetation in the central and south eastern regions of the Slovakia three species were found which are all new records for the country viz. Aulolaimus nannocephalus Andrássy, 1972, Hemicycliophora aberrans Thome, 1955 and Paratylenchus paramonovi Bagaturia & Solovyova in Solovyova, 1972.

Parole chiave

  • Nematode species
  • new records
  • riverbank vegetation
  • Slovakia

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