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Special Edizione: This issue is dedicated to the memory of Milan Ryboš, DVM, D.Sc.

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Volume 46 (2009): Edizione 4 (December 2009)

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Volume 45 (2008): Edizione 4 (December 2008)

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Volume 45 (2008): Edizione 2 (June 2008)

Volume 45 (2008): Edizione 1 (March 2008)

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Volume 44 (2007): Edizione 2 (June 2007)

Volume 44 (2007): Edizione 1 (March 2007)

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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 45 (2008): Edizione 2 (June 2008)

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

10 Articoli
Accesso libero

Review of Anoplocephaloides species from African rodents, with the proposal of Afrobaeria n. g. (Cestoda: Anoplocephalidae)

Pubblicato online: 05 Jun 2008
Pagine: 57 - 63

Astratto

Abstract

The anoplocephalid cestodes from African rodents previously assigned to Anoplocephaloides Baer, 1924 sensu Rausch (1976) represent a new genus. Afrobaeria n. g. differs from related genera in the morphology of the anterior strobila and scolex (neck absent), distribution of testes (dorsal), structure and position of the early uterus (tubular with lateral protuberances, positioned in the middle of the medulla, antero-posteriorly and dorso-ventrally) and alternation of the genital pores (irregularly and very frequently alternating). Two species of Afrobaeria are recognized, i.e. Af. acanthocirrosa (Baer, 1924) n. comb. (type species) and Af. isomydis (Setti, 1892) n. comb. It is shown that they can be differentiated from one another primarily by the structure of the cirrus sac and seminal receptacle. Afrobaeria acanthocirrosa parasitizes rodents of the genus Otomys (type host O. irroratus), and Af. isomydis has been found from Arvicanthis abyssinicus (type host), Oenomys hypoxanthus and, possibly, from Otomys spp. The systematic characters used for the classification of Anoplocephaloides sensu Rausch (1976) are discussed, and a redescription of Af. acanthocirrosa is provided.

Parole chiave

  • Afrobaeria n. g.
  • Anoplocephaloides
  • Anoplocephalidae
  • Cestoda
  • rodents
  • Africa
Accesso libero

Review and update of paramphistomosis

Pubblicato online: 05 Jun 2008
Pagine: 64 - 68

Astratto

Abstract

Despite records of ruminal paramphistomes in Argentina dating back to the beginning of the XX century, in the last decade cases have increased in number with evidence of spreading to new geographical areas. This fact led us to carry out some studies in the last few years in order to enhance the poor availability of reports in South America, some of which are actually performed in our group. This paper reviews the characteristics of the life cycles and some aspects of the disease both at world and local level, and updates the latest paramphistome reports in domestic ruminants of Argentina.

Parole chiave

  • Paramphistomum
  • ruminants
  • intermediate host
Accesso libero

The effect of chronic lead acetate trihydrate intoxication in Wistar rats on experimental Ascaris suum infestation and immunity

Pubblicato online: 05 Jun 2008
Pagine: 69 - 75

Astratto

Abstract

SPF male Wistar rats were exposed for four months to lead acetate trihydrate present in drinking water (100 mg/l) and subsequently infested with 1000 ± 100 infective A. suum eggs. Metabolic activity of phagocytes and proliferative activity of T-lymphocytes were investigated on Day 4 and 8 after A. suum eggs infestation (Day 130 and 134 of lead acetate trihydrate exposition). The results demonstrated that treatment with lead acetate trihydrate led to increased susceptibility to infestation, manifested by increased average number of A. suum larvae in the lungs of exposed rats compared to unexposed ones. Moreover, migration of A. suum larvae on Day 8 was associated with significant increase in index of metabolic activity of phagocytes in unexposed rats in comparison with controls. In contrast, in rats exposed to the lead and infested by A. suum eggs a non-significant increase in the studied immunological parameters was recorded. Significant differences in immunological parameters were observed between unexposed, infested and infested and exposed groups of rats. In the unexposed group of animals Ascaris suum infestation caused a significant increase in the index of metabolic activity of phagocytes and stimulation index of lymphocytes in comparison with lead exposed rats.

Parole chiave

  • lead acetate trihydrate
  • Ascaris suum
  • metabolic activity of phagocytes
  • stimulation index of lymphocytes
  • rat
Accesso libero

Concentrations of selected heavy metals in Ligula intestinalis L., 1758 plerocercoids (Cestoda) compared to it host’s (Tinca tinca L., 1758) organs from Beyşehir Lake (Turkey)

Pubblicato online: 05 Jun 2008
Pagine: 76 - 80

Astratto

Abstract

The accumulation of heavy metals (Cu, Fe, Zn and Mn) was measured by atomic absorption spectrophotometry in some organs of tench (Tinca tinca L., 1758) and tissues of its parasite collected from Beyşehir Lake, and compared with the data from sediments and water. The Cu levels in L. intestinalis L., 1758 plerocercoids were 1.69 times, respectively, higher than those in fish gill. Zn level in L. intestinalis plerocercoids was 2.13 times higher than those in fish liver, was 5.53 times higher than that of the muscle and 3.33 times higher than that in the gill. Significant negative (for Mn) correlation was found between the quantity of heavy metals in water and tissues of L. intestinalis plerocercoids while there was significant negative (for Cu) correlation between the quantity the heavy metals in bottom sediment and tissues of L. intestinalis plerocercoids. This study supports the idea that cestodes aren’t very useful to determine the heavy metal pollution in aquatic system when they are located in their intermediate host’s body cavity.

Parole chiave

  • Ligula intestinalis
  • tench
  • parasite
  • heavy metals
  • pollution
  • Turkey
Accesso libero

New data on an exotic Nippotaenia mogurndae (Cestoda), newly introduced to Europe

Pubblicato online: 05 Jun 2008
Pagine: 81 - 85

Astratto

Abstract

Data on prevalence and current distribution of the cestode Nippotaenia mogurndae Yamaguti and Miyata, 1940 (Nippotaeniidea) in Slovakia, are provided. A total of 163 fish from 8 localities of different types in the Tisa River basin were infected with N. mogurndae. The mean intensity of infection was 1.8 with a maximum of 5 tapeworms. The expansion of the distribution of the cestode corresponds well with the spreading of its host, the invasive fish Amur sleeper Perccottus glenii Dybowski, 1877. The Spearmann correlation coefficient was used to test the relationship between the intensity of infection and standard length of the fish (r = 0.36; n = 163; P < 0.05), condition coefficient of the fish (r = 0.22; n = 115; P < 0.05) and season (r = −0.37; n = 355; P < 0.05). A significant correlation was confirmed for each pair of variables. There is a statistically significant difference between the prevalence of the cestode in two functional size groups (t = 3.28; n = 163; P < 0.05). The prevalence of the cestode increased with the standard length of fish. The potential risk of further expansion of N. mogurndae to other countries is discussed.

Parole chiave

  • Nippotaenia mogurndae
  • non-native species
  • Amur sleeper
  • risk of invasion
  • Tisa River basin
Accesso libero

A new Nematoda (Thelastomatidae) parasite of Coleoptera larvae from Argentina

Pubblicato online: 05 Jun 2008
Pagine: 86 - 88

Astratto

Abstract

Leidynema saltense n. sp. (Nematoda, Thelastomatidae), a parasite of larvae of Cyclocephala modesta (Coleoptera, Scarabaeidae) from Salta province, Argentina, is described and illustrated. This species is characterised by the presence of an intestinal caecum in the female, and four pairs of genital papillae in the male, one pair of which is large, ventral and pre-anal and three pairs are subventral and postanal.

Parole chiave

  • Leidynema saltense n. sp.
  • Thelastomatidae
  • parasite
  • Coleoptera
  • Scarabaeidae
Accesso libero

Bursaphelenchus Fuchs, 1937 (Nematoda: Parasitaphelenchidae) species associated with Pinus species in northern Turkey

Pubblicato online: 05 Jun 2008
Pagine: 89 - 95

Astratto

Abstract

A survey for Bursaphelenchus nematodes, associated with different conifer trees, was conducted in several forest areas in the northern regions of Turkey. Only pine trees (Pinus nigra, P. pinaster and P. sylvestris) yielded Bursaphelenchus specimens. Nematodes were identified using several morphological diagnostic characters of the genus (male spicule structure, number of lateral incisures, number and distribution of the male papillae, presence of female vulval flap), and confirmed by using RFLP analysis of the internal transcriber spacer (ITS) regions of ribosomal DNA. Three different species were identified from several sampled areas, namely B. mucronatus, B. pinophilus and B. sexdentati, representing a first report of the last two species for Turkey. The association of B. pinophilus with black pine (P. nigra) is herein reported for the first time.

Parole chiave

  • Bursaphelenchus spp.
  • pine trees
  • morphology
  • ITS-RFLP analysis
Accesso libero

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

Pubblicato online: 05 Jun 2008
Pagine: 96 - 102

Astratto

Abstract

The distribution of species of the Xiphinema americanumgroup in Hungary was studied by collecting 272 samples from 53 localities. Samples have been taken from soil in the rhizosphere of 70 plant species. In total, 12.86 % of the samples contained at least one species from the Xiphinema americanum-group. Three species were found: Xiphinema brevicollum, X. pachtaicum and X. simile. Xiphinema brevicollum occurred in 4.41 %, X. pachtaicum in 3.67 % and X. simile in 4.77 % of the samples. New data on plants associated with the reported species and developmental patterns for X. brevicollum and X. pachtaicum are also presented.

Parole chiave

  • distribution
  • host-range
  • Hungary
  • morphometrics
  • Xiphinema americanum-group
Accesso libero

First report of Mesocriconema xenoplax (Nematoda: Criconematidae) in Greece and first record of Viburnum sp. as a possible host for this ring nematode

Pubblicato online: 05 Jun 2008
Pagine: 103 - 105

Astratto

Abstract

In 2005, root and soil samples were collected from the rhizosphere of Viburnum sp. plants in the yard of a house in Kifissia, Attica, Greece. The plants showed symptoms of yellowing and declining and all were dead within, approximately, one year. The roots were infected with the fungus Rosellinia necatrix. Several specimens of a ring nematode were recovered from soil and identified as Mesocriconema xenoplax based on morphological and morphometrical analysis of females. The nematode had been previously found on grapevines in Samos and Crete islands. This is the first report of M. xenoplax in Greece and the first record of Viburnum sp. as a host for this ring nematode. Additional information regarding distribution of this nematode in Greece is needed.

Parole chiave

  • Greece
  • morphometrics
  • ring nematode
  • Rosellinia necatrix
  • Viburnum
  • grapevine
Accesso libero

Redescription of the female of Mexiconema liobagri (Nematoda: Daniconematidae), a little-known parasite of the rare endemic catfish Liobagrus reinii (Amblycipitidae), in Japan

Pubblicato online: 05 Jun 2008
Pagine: 106 - 108

Astratto

Abstract

Gravid females of the little-known dracunculoid nematode Mexiconema liobagri Moravec et Nagasawa, 1998 (Daniconematidae), a parasite of the rare endemic catfish Liobagrus reinii Hilgendorf (Amblycipitidae), were found in the body cavity of this fish from two new localities in Japan: the Takami River at Kotsugawa, Higashiyoshino, Nara Prefecture and the Tenryu River at Ina, Nagano Prefecture, representing the second record of this nematode species since its original description. Light and scanning electron microscopical examinations of these specimens enabled us to supplement the original description of M. liobagri and to recognise biometrical variability in this species. Details of the cephalic structure of M. liobagri (presence of the small triangular mouth armed with six denticles, surrounded by a pair of large lateral amphids and four submedian pairs of small cephalic papillae) are described for the first time. In addition to M. liobagri, another specific nematode parasite, Rhabdochona japonica Moravec, 1975, was recorded in the intestine of L. reinii from the Takami River.

Parole chiave

  • parasitic nematode
  • Mexiconema
  • catfish
  • Liobagrus
  • Japan
10 Articoli
Accesso libero

Review of Anoplocephaloides species from African rodents, with the proposal of Afrobaeria n. g. (Cestoda: Anoplocephalidae)

Pubblicato online: 05 Jun 2008
Pagine: 57 - 63

Astratto

Abstract

The anoplocephalid cestodes from African rodents previously assigned to Anoplocephaloides Baer, 1924 sensu Rausch (1976) represent a new genus. Afrobaeria n. g. differs from related genera in the morphology of the anterior strobila and scolex (neck absent), distribution of testes (dorsal), structure and position of the early uterus (tubular with lateral protuberances, positioned in the middle of the medulla, antero-posteriorly and dorso-ventrally) and alternation of the genital pores (irregularly and very frequently alternating). Two species of Afrobaeria are recognized, i.e. Af. acanthocirrosa (Baer, 1924) n. comb. (type species) and Af. isomydis (Setti, 1892) n. comb. It is shown that they can be differentiated from one another primarily by the structure of the cirrus sac and seminal receptacle. Afrobaeria acanthocirrosa parasitizes rodents of the genus Otomys (type host O. irroratus), and Af. isomydis has been found from Arvicanthis abyssinicus (type host), Oenomys hypoxanthus and, possibly, from Otomys spp. The systematic characters used for the classification of Anoplocephaloides sensu Rausch (1976) are discussed, and a redescription of Af. acanthocirrosa is provided.

Parole chiave

  • Afrobaeria n. g.
  • Anoplocephaloides
  • Anoplocephalidae
  • Cestoda
  • rodents
  • Africa
Accesso libero

Review and update of paramphistomosis

Pubblicato online: 05 Jun 2008
Pagine: 64 - 68

Astratto

Abstract

Despite records of ruminal paramphistomes in Argentina dating back to the beginning of the XX century, in the last decade cases have increased in number with evidence of spreading to new geographical areas. This fact led us to carry out some studies in the last few years in order to enhance the poor availability of reports in South America, some of which are actually performed in our group. This paper reviews the characteristics of the life cycles and some aspects of the disease both at world and local level, and updates the latest paramphistome reports in domestic ruminants of Argentina.

Parole chiave

  • Paramphistomum
  • ruminants
  • intermediate host
Accesso libero

The effect of chronic lead acetate trihydrate intoxication in Wistar rats on experimental Ascaris suum infestation and immunity

Pubblicato online: 05 Jun 2008
Pagine: 69 - 75

Astratto

Abstract

SPF male Wistar rats were exposed for four months to lead acetate trihydrate present in drinking water (100 mg/l) and subsequently infested with 1000 ± 100 infective A. suum eggs. Metabolic activity of phagocytes and proliferative activity of T-lymphocytes were investigated on Day 4 and 8 after A. suum eggs infestation (Day 130 and 134 of lead acetate trihydrate exposition). The results demonstrated that treatment with lead acetate trihydrate led to increased susceptibility to infestation, manifested by increased average number of A. suum larvae in the lungs of exposed rats compared to unexposed ones. Moreover, migration of A. suum larvae on Day 8 was associated with significant increase in index of metabolic activity of phagocytes in unexposed rats in comparison with controls. In contrast, in rats exposed to the lead and infested by A. suum eggs a non-significant increase in the studied immunological parameters was recorded. Significant differences in immunological parameters were observed between unexposed, infested and infested and exposed groups of rats. In the unexposed group of animals Ascaris suum infestation caused a significant increase in the index of metabolic activity of phagocytes and stimulation index of lymphocytes in comparison with lead exposed rats.

Parole chiave

  • lead acetate trihydrate
  • Ascaris suum
  • metabolic activity of phagocytes
  • stimulation index of lymphocytes
  • rat
Accesso libero

Concentrations of selected heavy metals in Ligula intestinalis L., 1758 plerocercoids (Cestoda) compared to it host’s (Tinca tinca L., 1758) organs from Beyşehir Lake (Turkey)

Pubblicato online: 05 Jun 2008
Pagine: 76 - 80

Astratto

Abstract

The accumulation of heavy metals (Cu, Fe, Zn and Mn) was measured by atomic absorption spectrophotometry in some organs of tench (Tinca tinca L., 1758) and tissues of its parasite collected from Beyşehir Lake, and compared with the data from sediments and water. The Cu levels in L. intestinalis L., 1758 plerocercoids were 1.69 times, respectively, higher than those in fish gill. Zn level in L. intestinalis plerocercoids was 2.13 times higher than those in fish liver, was 5.53 times higher than that of the muscle and 3.33 times higher than that in the gill. Significant negative (for Mn) correlation was found between the quantity of heavy metals in water and tissues of L. intestinalis plerocercoids while there was significant negative (for Cu) correlation between the quantity the heavy metals in bottom sediment and tissues of L. intestinalis plerocercoids. This study supports the idea that cestodes aren’t very useful to determine the heavy metal pollution in aquatic system when they are located in their intermediate host’s body cavity.

Parole chiave

  • Ligula intestinalis
  • tench
  • parasite
  • heavy metals
  • pollution
  • Turkey
Accesso libero

New data on an exotic Nippotaenia mogurndae (Cestoda), newly introduced to Europe

Pubblicato online: 05 Jun 2008
Pagine: 81 - 85

Astratto

Abstract

Data on prevalence and current distribution of the cestode Nippotaenia mogurndae Yamaguti and Miyata, 1940 (Nippotaeniidea) in Slovakia, are provided. A total of 163 fish from 8 localities of different types in the Tisa River basin were infected with N. mogurndae. The mean intensity of infection was 1.8 with a maximum of 5 tapeworms. The expansion of the distribution of the cestode corresponds well with the spreading of its host, the invasive fish Amur sleeper Perccottus glenii Dybowski, 1877. The Spearmann correlation coefficient was used to test the relationship between the intensity of infection and standard length of the fish (r = 0.36; n = 163; P < 0.05), condition coefficient of the fish (r = 0.22; n = 115; P < 0.05) and season (r = −0.37; n = 355; P < 0.05). A significant correlation was confirmed for each pair of variables. There is a statistically significant difference between the prevalence of the cestode in two functional size groups (t = 3.28; n = 163; P < 0.05). The prevalence of the cestode increased with the standard length of fish. The potential risk of further expansion of N. mogurndae to other countries is discussed.

Parole chiave

  • Nippotaenia mogurndae
  • non-native species
  • Amur sleeper
  • risk of invasion
  • Tisa River basin
Accesso libero

A new Nematoda (Thelastomatidae) parasite of Coleoptera larvae from Argentina

Pubblicato online: 05 Jun 2008
Pagine: 86 - 88

Astratto

Abstract

Leidynema saltense n. sp. (Nematoda, Thelastomatidae), a parasite of larvae of Cyclocephala modesta (Coleoptera, Scarabaeidae) from Salta province, Argentina, is described and illustrated. This species is characterised by the presence of an intestinal caecum in the female, and four pairs of genital papillae in the male, one pair of which is large, ventral and pre-anal and three pairs are subventral and postanal.

Parole chiave

  • Leidynema saltense n. sp.
  • Thelastomatidae
  • parasite
  • Coleoptera
  • Scarabaeidae
Accesso libero

Bursaphelenchus Fuchs, 1937 (Nematoda: Parasitaphelenchidae) species associated with Pinus species in northern Turkey

Pubblicato online: 05 Jun 2008
Pagine: 89 - 95

Astratto

Abstract

A survey for Bursaphelenchus nematodes, associated with different conifer trees, was conducted in several forest areas in the northern regions of Turkey. Only pine trees (Pinus nigra, P. pinaster and P. sylvestris) yielded Bursaphelenchus specimens. Nematodes were identified using several morphological diagnostic characters of the genus (male spicule structure, number of lateral incisures, number and distribution of the male papillae, presence of female vulval flap), and confirmed by using RFLP analysis of the internal transcriber spacer (ITS) regions of ribosomal DNA. Three different species were identified from several sampled areas, namely B. mucronatus, B. pinophilus and B. sexdentati, representing a first report of the last two species for Turkey. The association of B. pinophilus with black pine (P. nigra) is herein reported for the first time.

Parole chiave

  • Bursaphelenchus spp.
  • pine trees
  • morphology
  • ITS-RFLP analysis
Accesso libero

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

Pubblicato online: 05 Jun 2008
Pagine: 96 - 102

Astratto

Abstract

The distribution of species of the Xiphinema americanumgroup in Hungary was studied by collecting 272 samples from 53 localities. Samples have been taken from soil in the rhizosphere of 70 plant species. In total, 12.86 % of the samples contained at least one species from the Xiphinema americanum-group. Three species were found: Xiphinema brevicollum, X. pachtaicum and X. simile. Xiphinema brevicollum occurred in 4.41 %, X. pachtaicum in 3.67 % and X. simile in 4.77 % of the samples. New data on plants associated with the reported species and developmental patterns for X. brevicollum and X. pachtaicum are also presented.

Parole chiave

  • distribution
  • host-range
  • Hungary
  • morphometrics
  • Xiphinema americanum-group
Accesso libero

First report of Mesocriconema xenoplax (Nematoda: Criconematidae) in Greece and first record of Viburnum sp. as a possible host for this ring nematode

Pubblicato online: 05 Jun 2008
Pagine: 103 - 105

Astratto

Abstract

In 2005, root and soil samples were collected from the rhizosphere of Viburnum sp. plants in the yard of a house in Kifissia, Attica, Greece. The plants showed symptoms of yellowing and declining and all were dead within, approximately, one year. The roots were infected with the fungus Rosellinia necatrix. Several specimens of a ring nematode were recovered from soil and identified as Mesocriconema xenoplax based on morphological and morphometrical analysis of females. The nematode had been previously found on grapevines in Samos and Crete islands. This is the first report of M. xenoplax in Greece and the first record of Viburnum sp. as a host for this ring nematode. Additional information regarding distribution of this nematode in Greece is needed.

Parole chiave

  • Greece
  • morphometrics
  • ring nematode
  • Rosellinia necatrix
  • Viburnum
  • grapevine
Accesso libero

Redescription of the female of Mexiconema liobagri (Nematoda: Daniconematidae), a little-known parasite of the rare endemic catfish Liobagrus reinii (Amblycipitidae), in Japan

Pubblicato online: 05 Jun 2008
Pagine: 106 - 108

Astratto

Abstract

Gravid females of the little-known dracunculoid nematode Mexiconema liobagri Moravec et Nagasawa, 1998 (Daniconematidae), a parasite of the rare endemic catfish Liobagrus reinii Hilgendorf (Amblycipitidae), were found in the body cavity of this fish from two new localities in Japan: the Takami River at Kotsugawa, Higashiyoshino, Nara Prefecture and the Tenryu River at Ina, Nagano Prefecture, representing the second record of this nematode species since its original description. Light and scanning electron microscopical examinations of these specimens enabled us to supplement the original description of M. liobagri and to recognise biometrical variability in this species. Details of the cephalic structure of M. liobagri (presence of the small triangular mouth armed with six denticles, surrounded by a pair of large lateral amphids and four submedian pairs of small cephalic papillae) are described for the first time. In addition to M. liobagri, another specific nematode parasite, Rhabdochona japonica Moravec, 1975, was recorded in the intestine of L. reinii from the Takami River.

Parole chiave

  • parasitic nematode
  • Mexiconema
  • catfish
  • Liobagrus
  • Japan

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