Gregarine Species Research Articles

Phlaeobum collarum sp. nov., a New Septate Gregarine (Apicomplexa: Sporozoea) from the Grasshopper, Phlaeoba infumataBrunnur with a New Definition of the Genus Phlaeobum ( Haldar and Chakraborty, 1974)

Summary The paper deals with the morphology and life history of a new species of cephaline gregarine (Apicomplexa: Sporozoea) of the genus Phlaeobum from an Indian grasshopper, Phlaeoba infumata Brunnur . A new definition of the genus Phlaeobum has been proposed and also the family placement of the genus has been discussed. The spelling of the genus has been corrected from Phleobum to Phlaeobum . Informations regarding the percentage of infection, seasonal intensity and type materials have also been incorporated.

Electrophoretic Differences in the Isoenzymes of two Mosquito Gregarines, Ascogregarina barretti and A. geniculati

Cross-infection experiments demonstrated that Ascogregarina barretti, from Aedes triseriatus, completes its life cycle in Aedes geniculatus. Parasite numbers were comparable to infection with Ascogregarina geniculati, making the separation of these parasites by host preference difficult. However, electrophoresis readily distinguished isoenzymes from the two morphologically similar gregarine species. Different migration rates were obtained for isocitrate dehydrogenase 1 and 2, lactate dehydrogenase, and malate dehydrogenase. The migration rates were also different for parasite and host isoenzymes. When a single, heavily infected gut was subjected to electrophoresis the isocitrate dehydrogenase bands of each were clearly distinguishable on the same electrophoretic track. Electrophoresis appears to be a reliable method for resolving taxonomic complications of mosquito gregarines, a group often with wide host specificities and variable taxonomic characters.

Studies on Two New Species of Cephaline Gregarines (Apicomplexa: Sporozoea) of the Genus GregarinaDufour, 1828 from Insects

Summary The paper contains descriptions of two new species of cephaline gregarines (Apicomplexa: Sporozoea) of the genus Gregarina Dufour , 1828 from insects of the orders Dictyoptera and Dermoptera. The new species are (1) Gregarina ischnopterae sp. nov. from Ischnoptera sp. and (2) Gregarina nalae sp. nov. from Nala lividipes ( Dufour ). The entire life history of these parasites has been worked out and incorporated in the communication.

Observation on a new species of cephaline gregarine of the genus QuadruspinosporaSarkar and Chakravarty, 1969 from a grasshopper, Spathosternum prasiniferum prasiniferum

Summary The paper contains the description of morphology and life history of a new species of cephaline gregarine of the genus Quadruspinospora Sarkar and Chakravarty , 1969 from an Indian grasshopper, Spathosternum prasiniferum prasiniferum ( Walker ). a chronological list of Quadruspinospora species so far recorded from orthopteran insects in India have been incorporated. Informations regarding the percentage of infection, seasonal intensity and type material have also been given.

Observations on 2 new species of cephaline gregarines (Protozoa: Sporozoa) of the genus StenodutusRamachandkan, 1976 from sphaerotherid millipedes in Kerala, India

Summary The morphology and life-history of 2 new species of cephaline gregarines, Stenodudus nitida n. sp. from the intestine of Arthrosphaera nitida Pocock and S. disticta n. sp. from A. disticta Pocock , A. dalyi Pocock and Arthrosphaera sp. are described and their systematic positions discussed. S. nitida n. sp.: The sporonts reach 892 by 532.8μm. Gametocysts spherical, 434.9μm in diameter and have an ectocyst and endocyst. Spores ovoid, 3.8 by 1.4μm or 4.2 by 1.4μm, with hyaline episphore having round polar projections. S. disticta n. sp.: The sporonts reach 835.2 by 316.8μm. Gametocysts ovoid, 432 by 402.8μm in dimensions and have a hyaline cyst wall. Spores ellipsoid, 12.6 by 5.8μm, with hyaline epispore having round polar projections.

The Three Cortical Membranes of the Gregarines (Parasitic Protozoa). III. Comparative Studies of the Membrane Proteins Among Different Sporozoan Species During Their Vegetative Phase1

ABSTRACT. The cortical membrane proteins of three gregarine and one coccidian species were compared using sodium dodecyl sulfate/polyacrylamide‐gel electrophoresis. About 30 proteins were identified in the ghosts of Gregarina blaberae and G. garnhami and 20 in G. rhyparobiae ghosts and Sarcocystis tenella pellicles. No protein with the electrophoretic mobility of muscular actin was present in the ghosts of the sporozoan species under study. Each species possessed a characteristic electrophoretic pattern; no protein was present simultaneously in the four sporozoan species and only one protein band with a similar electrophoretic mobility was found in the three gregarine species (52 Kd protein). Two G. garnhami subpopulations living in Locusta migratoria and Schistocerca gregaria exhibited the same ghost protein pattern. Thus, large differences were observed between species and not within species, and the protein electrophoretic analysis appears to be a powerful tool for taxonomic investigations in gregarines. Gregarina blaberae and G. garnhami glycoconjugates were compared after periodate/Schiff staining of the polyacrylamide gel slabs. Several glycoconjugates were reported to belong to the cytoplasmic fraction; and, in view of cytochemical and ultrastructural data, a contribution of these glycocomponents to the secretion of a mucus is discussed.

Studies in Cephaline Gregarines (Protozoa : Sporozoa) from Insects: Life History of Retractocephalus raphidopalpaeHaldar and Chakraborty, 1976 and Four New Species of the Genus Retractocephalus

Summary The communication deals with the complete life history of five species of cephaline gregarines (Protozoa: Sporozoa) belonging to the genus Retractocephalus Haldar and Chakraborty 1976, obtained from various insects in and around Kalyani, West Bengal, India. These are: (1) R. raphidopalpae Haldar and Chakraborty 1976 from Raphidopalpa ( = Aulacophora) foveicollis Lucas ; (2) R. aulacophorae n. sp. from Aulacophora intermedia Jacoby ; (3) R. spatulatus n. sp. from Lema sp. 1; (4) R. spinosus n. sp. from Monolepta signata Oliv ; and (5) R. haltiens n. sp. from Haltica sp. Informations regarding the seasonal intensity and type materials have also been given in the paper.

Observations on four new species of actinocephalid gregarines (Protozoa: Sporozoa) under a new genus Odonaticola from odonate insects

A new genus Odonaticola has been proposed in this paper to include four species of cephaline gregarines (Protozoa: Sporozoa) from various odonate insects from West BengalThese are Odonaticola hexacantha nsptype species from Brachythemis contaminate ( Fabriciits ), Olongicollara nspfrom Diplacodes trivalis ( Rambur ), Oorthetri nspfrom Orthetrum sabina ( Drury ) and Orodgii nspfrom Neurothemis ttullia ( Drury ).

Observations on a new cephaline gregarine (Protozoa: Sporozoa), Brustiospora indicola gen. nov., sp. nov. from a Coccinellid beetle, Stethorus sp.

Summary 1. The present paper deals with the morphology and life history of a new cephaline gregarine from an Indian Coccinellid beetle, Stethorus sp. 2. No species of cephaline gregarines excepting those belonging to the genus Gregarina have earlier been reported from any Coccinellid beetle anywhere in the world. A table showing the names of these cephaline gregarines has been incorporated. 3. The parasite has been assigned a new genus Brustiospora and B. indicola has been described as the type species of the genus. The parasite has the following ratios: LP: TL = 1: 7.0; WP: WD = 1: 1.3. A new family Brustiosporidae has been created to accommodate this gregarine. 4. Informations regarding the percentage of infection, seasonal intensity and type materials have also been given.

Observations on two new species of cephaline gregarine (Protozoa:Sporozoa) of the genusAncyrophora L�ger, 1892 from odonate insects

The morphology and life history of two new species of cephaline gregarines (Protozoa: Sporozoa),Ancyrophora ischnurae n. sp. andAncyrophora ovoides n. sp. have been described from the midguts of the odonates,Ischnura senegalensis (Rambur) andIschnura delicata Hagen respectively, from West Bengal, India. A short discussion on the diagnostic features of the genusAncyrophora Leger, 1892 has also been incorporated in this paper.

A new species of septate gregarine,Sphaerocystis odontotermi n.sp. from the gut of a xylophagous termite,Odontotermes sp

A new species of a septate gregarine,Sphaerocystis odontotermi n.sp. from the gut of the xylophagous termite,Odontotermis sp., is described.

Observations on two new species of cephaline gregarines (Protozoa: Sporozoa) of the genusGregarina Dufour, 1828 from insects

The morphology and life history of two new species of cephaline gregarines (Protozoa: Sporozoa) belonging to the genusGregarina from insects of the orders Coleoptera and Dictyoptera collected at Kalyani and Ranaghat respectively, West Bengal, India is given in this communication. The new species are: (1)G. bilobosa sp. nov. fromLongitarsus sp.; (2)G. discocephala sp. nov. from the nymphal stages of an unidentified insect belonging to the family Blattellidae. The seasonal intensity and the percentage of infection of these gregarines, together with information about the type material are given in this paper.

Three New Species of Cephaline Gregarines from Marine Prawns off the Arabian Coast at Cannanore

Summary Three new species of cephaline gregarines are described from marine prawns from the Arabian Coast off Cannanore, India. These are Caridohabitans indicus n. sp. from Penaeus indicus, Metapenaeus affinis and M. dobsoni; C. stylifera n. sp. from Parapenaeopsis stylifera and C. dobsoni n. sp. from Metapenaeus dobsoni. Various life-history stages are reported.

Studies in Three New Species of Cephaline Gregarines of the Genus Gregarina Dufour, 1828 from Indian Gryllids

Summary The descriptions of three new species of cephaline gregarines (Protozoa: Sporozca) of the genus Gregarina Dufour, 1828, obtained from Indian gryllids are given in the paper. These are: 1) G. gryllodesii n. sp. from, Gryllodes sp. (LP: TL = 1 : 5.7; WP: WD = 1 : 1); 2) G. guttiventra n. sp. from Plebeogryllus guttiventris Walker (LP: TL = 1 : 3.8; WP: WD = 1:1.3); and 3) G. levinii n. sp. from Pteronemobius fascipense Walker (LP: TL = 1 : 4.8; WP: WD = 1 : 1.2). A comparison has been made of the presently described species of Gregarina with those described earlier from. the gryllid hosts to establish their distinctiveness.

Observations on three new species of cephaline gregarines (Protozoa: Sporozoa) of the genusHirmocystis Labb� from coleopteran insects

This communication describes the morphology and life history of three new species of cephaline gregarines (Protozoa:Sporozoa) belonging to the genusHirmocystis Labbe, 1899, from coleopteran insects of Kalyani, West Bengal, India. These are: (1)H. bengalensis n.sp. fromMyllocerus sp. 1; (2)H. pitcharis n.sp. fromXanthoprochilus sp., and (3)H. pseudoductis fromMyllocerus sp. 2. Information regarding the seasonal intensity and percentage of infection are also given in the paper.

Three new species of gregarines from termites

Three new species of gregarines,Gregarina macrotermitis fromMacrotermitis estherae (Desn),Steinina coptotermi fromCoptotermes heimi andAnthorhynchus hanumanthi fromOdontotermes sp. from India have been described and their systematic position is discussed along with that of all the gregarine parasites from termites.

Grégarines de la Corée du sud

Study of 14 species of Gregarines from terrestrial arthropods (Myriapoda and Insecta) of south Korea. Some of them (Ramicephalus ozakii, Gregarina monoducta, Hoplorhynchus ozakii, Stylocephalus bahli) are typically asiatic whereas the others were already described from identical or similar european hosts.

The Gregarine Infection in Different Species of Odonata from the Same Habitat

AbstractA qualitative and quantitative study of eugregarine parasites in different dragonfly species was performed around a breeding site at Bergen (Western Norway). Dragonfly larvae were never found to harbour gregarines. As a general rule, the number of dragonflies infected and the number of gregarines present in each individual host increased during the flying season. In the zygopterans Coenagrion hastulatum (Charp.), Enallagma cyathi‐gerum (Charp.), and Pyrrhosoma nymphula (Sulz.), the majority became heavily infected. Discoloured, feeble specimens captured in the field exhibited extensive damage to the midgut, probably progressing to bacterial septicaemia. The histopathology of the midgut wall has been recorded from scarcely visible alterations to massive disruption of the epithelium. In these species, gregarine infection apparently reduced the longevity of adults. The population of Lestes sponsa (Hansem.) was moderately infected and injuries of the midgut seldom occurred. In the only infected anisopteran, Sympetrum danae (Sulz.), gregarines seemed unimportant and caused no damage to their hosts. Each gregarine species seemed to thrive in several dragonfly hosts, and a host could harbour at least two different gregarine species at the same time. The pattern of infection is discussed against the background of climatic and edaphic conditions.

Etude Comparée de Quelques Grégarines Acanthosporinae

SYNOPSIS. Numerous species of gregarines of subfamily Acanthosporinae are parasites of Trichoptera and Coleoptera. Eight species belonging to genus Ancyrophora are compared. One of them, A. rostrata, is new. This study makes it possible to recognize also a new genus, named Rhizionella and erected to contain another new species, R. tenuis.

Gregarines found in cockroaches of the genus Blaberus

1. A description of four new species of gregarine found in Blaberus discoidalis and Blaberus boliviensis is given. The species have been called Protomagalhaensia granulosae, Gregarina cubensis (from B. discoidalis), Protomagalhaensia blaberae and Gregarina princisi (from B. boliviensis).2. A discussion of the taxonomic status of the species in relation to one another and to Gregarina blattarum and Protomagalhaensia serpentula is given, and further work to elucidate this problem is suggested.