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Lipotrophidae
The Lipotrophidae are a family of parasitic alveolates in the phylum Apicomplexa. Species in this family infect insects (Diptera, Lepidoptera, Coleoptera and Hymenoptera). History This family was created by Grasse in 1953. Taxonomy Six genera are currently recognised in this family. Lifecycle Merogony generally occurs by budding from surface of meront to form uniformly sized merozoites. The gametes are similar ( isogametes) and fuse to form navicular oocysts which have pronounced polar thickenings. The oocysts contain eight (rarely four) sporozoite Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organis ...s. References Apicomplexa families Parasites of insects {{Apicomplexa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neogregarinorida
The Neogregarinorida are an order of parasitic alveolates in the phylum Apicomplexa. Species in this order infect insects and are usually found in the fat body, hemolymph, hypodermis, intestine or Malpighian tubules. The most common site of infection is the fat body: many species are pathogenic for their hosts. The species in this order are predominantly intracellular parasites. Taxonomy Six families are in this order, with 13 genera. The type genus is '' Ophryocystis''. Two families ( Ophryocystidae and Schizocystidae) belong to the suborder Schizogregarinina. They appear to have evolved from the Eugregarinorida. Merogony as part of the life cycle separates them from the Eugregarinorida and appears to have been derived as a secondary characteristic. A phylogenetic analysis of the small subunit RNA suggests ''Ophryocystis'' may actually be a eugregarine rather than a neogregarine. General characteristics * Merogony, gamogony and sporogony Apicomplexans, a group of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apicystis
''Apicystis'' is a genus of parasitic alveolates of the phylum Apicomplexa. Taxonomy There are two species currently recognized in this genus: ''A. bombi'' and ''A. cryptica'' History ''Apicystis bombi'' was first described by Liu in 1974 as a species in the genus '' Mattesia''. In 1996, Lipa and Triggiani transferred this organism to a new genus ''Apicystis'' on the basis of morphology and life cycle. In 2020, Schoonavere et al. described ''A. cryptica'', associated to the bumble bees ''Bombus pascuorum'', ''B. sichelii'' and ''B. veteranus'' Schoonvaere, K., Brunain, M., Baeke, F., De Bruyne, M., De Rycke, R., & De Graaf, D. C. (2020). Comparison between Apicystis cryptica sp. n. and Apicystis bombi (Arthrogregarida, Apicomplexa): Gregarine parasites that cause fat body hypertrophism in bees. European Journal of Protistology, 73, 125688 Description The species in this genus are spread by the orofaecal route. Oocysts are ingested. Within the intestine these develop into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farinocystis
''Farinocystis'' is a genus of parasitic alveolates of the phylum Apicomplexa. Species in this genus infect insects (''Coleoptera''). Taxonomy This genus was created by Weiser in 1953.Weiser J (1953) Parasites of the flour beetles ''Tribolium castaneum''. Proc Soc Protozool 4:21 The type species is ''Farinocystis tribolii''. Host records *Mealworm (''Tenebrio molitor Mealworms are the larval form of the yellow mealworm beetle, ''Tenebrio molitor'', a species of darkling beetle. The yellow mealworm beetle prefers a warmer climate and higher humidity. Male mealworm beetles release a sex pheromone to attract ...'') References Apicomplexa genera Parasites of insects {{Apicomplexa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lipocystis
''Lipocystis'' is a genus of parasitic alveolates of the phylum Apicomplexa. Species in this genus infect insects. Taxonomy This genus was created by Grell in 1938.Grell K G (1938) Untersuchungen an Schizogregarinen. I. ''Lipocystis polyspora'' n. g. m. sp., eine neue Schizogregarine aus dem Fettkörper von ''Panorpa communis'' L. Arch Protistenk 91:526-545 Grell observed the parasite during his work for his PhD thesis. The only recognised species in this genus is ''Lipocystis polyspora''. Description The life cycle of this parasite occurs within the fat body of the host. Transmission is via the oro-faecal route. The infective sporozoites are fusiform. Once ingested the sporozoites invade the wall of the gut ''en route'' to the fat body. After invasion the sporozoites enlarge into rounded micronuclear meronts (nuclear diameter = 1 micron). This first round of merogony produces merozoites with small nuclei which their turn become meronts. The second generation meronts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mattesia
''Mattesia'' is a genus of parasitic alveolates of the phylum Apicomplexa. Species in this genus infect insects (''Coleoptera'', ''Hymenoptera'', ''Lepidoptera'' and ''Siphonaptera''). Taxonomy The genus was created in 1930 by Naville. There are eight recognised species in this genus. The type species is ''Mattesia geminata''. Host records *''M. alphitobii'' — lesser mealworm (''Alphitobius diaperinus'') *''M. dispora'' — Indianmeal moth (''Plodia interpunctella'') *''M. geminata'' — fire ant (''Solenopsis geminata'') *''M. grandis'' — boll weevil (''Anthonomus grandis'') *''M. orchopiae'' — flea ('' Orchopeas wickhami'') *''M. oryzaephili'' — sawtoothed grain beetle ('' Oryzaephilus surinamensis'') *''M. povolnyi'' — Eurasian sunflower moth ('' Homoeosoma nebulellum'') *''M. trogodermae'' — Glabrous cabinet beetle ('' Trogoderma glabrum'') Notes This genus is a synonym of ''Coelogregarina'' Ghélélovitch, 1948. ''Mattesia bombi'' has been moved to a new g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eukaryota
The eukaryotes ( ) constitute the Domain (biology), domain of Eukaryota or Eukarya, organisms whose Cell (biology), cells have a membrane-bound cell nucleus, nucleus. All animals, plants, Fungus, fungi, seaweeds, and many unicellular organisms are eukaryotes. They constitute a major group of Outline of life forms, life forms alongside the two groups of prokaryotes: the Bacteria and the Archaea. Eukaryotes represent a small minority of the number of organisms, but given their generally much larger size, their collective global biomass is much larger than that of prokaryotes. The eukaryotes emerged within the archaeal Kingdom (biology), kingdom Asgard (Archaea), Promethearchaeati and its sole phylum Promethearchaeota. This implies that there are only Two-domain system, two domains of life, Bacteria and Archaea, with eukaryotes incorporated among the Archaea. Eukaryotes first emerged during the Paleoproterozoic, likely as Flagellated cell, flagellated cells. The leading evolutiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidoptera
Lepidoptera ( ) or lepidopterans is an order (biology), order of winged insects which includes butterflies and moths. About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organisms, making it the second largest insect order (behind Coleoptera) with 126 family (biology), families and 46 Taxonomic rank, superfamilies, and one of the most widespread and widely recognizable insect orders in the world. Lepidopteran species are characterized by more than three derived features. The most apparent is the presence of scale (anatomy), scales that cover the torso, bodies, large triangular Insect wing, wings, and a proboscis for siphoning nectars. The scales are modified, flattened "hairs", and give butterflies and moths their wide variety of colors and patterns. Almost all species have some form of membranous wings, except for a few that have reduced wings or are wingless. Mating and the laying of eggs is normally performe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporozoite
Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism is typified by a ''cellular variety'' with a distinct morphology and biochemistry. Not all apicomplexa develop all the following cellular varieties and division methods. This presentation is intended as an outline of a hypothetical generalised apicomplexan organism. Methods of asexual replication Apicomplexans (sporozoans) replicate via ways of multiple fission (also known as schizogony). These ways include , and , although the latter is sometimes referred to as schizogony, despite its general meaning. Merogony is an asexually reproductive process of apicomplexa. After infecting a host cell, a trophozoite ( see glossary below) increases in size while repeatedly replicating its nucleus and other organelles. During this process, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oocyst
Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism is typified by a ''cellular variety'' with a distinct morphology and biochemistry. Not all apicomplexa develop all the following cellular varieties and division methods. This presentation is intended as an outline of a hypothetical generalised apicomplexan organism. Methods of asexual replication Apicomplexans (sporozoans) replicate via ways of multiple fission (also known as schizogony). These ways include , and , although the latter is sometimes referred to as schizogony, despite its general meaning. Merogony is an asexually reproductive process of apicomplexa. After infecting a host cell, a trophozoite ( see glossary below) increases in size while repeatedly replicating its nucleus and other organelles. During this process, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isogamete
Isogamy is a form of sexual reproduction that involves gametes of the same morphology (indistinguishable in shape and size), and is found in most unicellular eukaryotes. Because both gametes look alike, they generally cannot be classified as male or female. Instead, organisms that reproduce through isogamy are said to have different mating types, most commonly noted as "+" and "−" strains. Etymology The etymology of isogamy derives from the Greek adjective ''isos'' (meaning equal) and the Greek verb ''gameo'' (meaning to have sex/to reproduce), eventually meaning "equal reproduction" which refers to a hypothetical initial model of equal contribution of resources by both gametes to a zygote in contrast to a later evolutional stage of anisogamy. The term isogamy was first used in the year 1891. Characteristics of isogamous species Isogamous species often have two mating types ( heterothallism), but sometimes can occur between two haploid individuals that are mitotic d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merozoite
Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism is typified by a ''cellular variety'' with a distinct morphology and biochemistry. Not all apicomplexa develop all the following cellular varieties and division methods. This presentation is intended as an outline of a hypothetical generalised apicomplexan organism. Methods of asexual replication Apicomplexans (sporozoans) replicate via ways of multiple fission (also known as schizogony). These ways include , and , although the latter is sometimes referred to as schizogony, despite its general meaning. Merogony is an asexually reproductive process of apicomplexa. After infecting a host cell, a trophozoite ( see glossary below) increases in size while repeatedly replicating its nucleus and other organelles. During this process, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
