Aconoidasida

Aconoidasida
Stages of development of Haemoproteus syrnii - 32: Sporozoites released from an oocyst and a gametocyte - 33: Oocyst bursting, sporozoites still attached to the cytomer, and gametocyte 34: Two mature sporozoites 35: Ookinetes
Systematics
Domain : Eukaryotes (eukaryota) without rank: Diaphoreticks without rank: Sar without rank: Alveolata without rank: Apicomplexa without rank: Aconoidasida
Scientific name
Aconoidasida
Mehlhorn , Peters & Haberkorn , 1980

Aconoidasida is a sub-taxon of the Apicomplexa .

description

Aconoidasida differ from the other apicomplexa in that the conoid is usually only formed in the ookinete ( zygote ) stage, but not in the other developmental stages. However, some diploid ookinetes deviate from it and form conoids. Macro gametes and micro gametes are formed independently of each other. Aconoidasida do not form cysts.

Way of life

Aconoidasida are blood parasites that have to pass through two hosts to complete their life cycle, first a vertebrate as intermediate host and then an arthropod as final host . Since they do not form cysts, you can only change their hosts in moist environments (e.g. in saliva).

Taxonomy and systematics

The taxon was first described in 1980 by Heinz Mehlhorn , Werner Peters and Axel Haberkorn , a synonym is Haematozoea, Vivier 1982. The name reflects the lack of a conoid.

The Aconoidasida are further divided into the following groups and genera:

• Haemospororida , Danilewsky 1885:
  • Dionisia
  • Haemocystidium
  • Haemoproteus
  • Hepatocystis
  • Leucocytozoon
  • Mesnilium
  • Nycteria
  • Parahaemoproteus
  • Plasmodium
  • Polychromophilus
  • Rayella
  • Saurocytozoon
• Piroplasmorida Wenyon 1926
  • Anthemosoma
  • Babesia
  • Cytauxzoon
  • Echinozoon
  • Haemohormidium
  • Sauroplasm
  • Serpentoplasm
  • Theileria
• Nephromycida Cavalier-Smith 1993, emend. Adl et al. 2019
  • Nephromyces
  • Cardiosporidium

Individual evidence

1. ↑ ^{a b c d} Sina M. Adl, David Bass, Christopher E. Lane, Julius Lukeš, Conrad L. Schoch, Alexey Smirnov, Sabine Agatha, Cedric Berney, Matthew W. Brown, Fabien Burki, Paco Cárdenas, Ivan Čepička, Lyudmila Chistyakova, Javier del Campo, Micah Dunthorn, Bente Edvardsen, Yana Eglit, Laure Guillou, Vladimír Hampl, Aaron A. Heiss, Mona Hoppenrath, Timothy Y. James, Anna Karnkowska, Sergey Karpov, Eunsoo Kim, Martin Kolisko, Alexander Kudryavtsev, Daniel JG Lahr, Enrique Lara, Line le Gall, Denis H. Lynn, David G. Mann, Ramon Massana, Edward AD Mitchell, Christine Morrow, Jong Soo Park, Jan W. Pawlowski, Martha J. Powell, Daniel J. Richter, Sonja Rueckert, Laura Shadwick, Satoshi Shimano, Frederick W. Spiegel, Guifré Torruella, Noha Youssef, Vasily Zlatogursky, Qianqian Zhang: Revisions to the Classification, Nomenclature, and Diversity of Eukaryotes . In: The Journal of Eukaryotic Microbiology . Volume 66, No. 1, September 26, 2018, doi: 10.1111 / jeu.12691 , ISSN  1550-7408 , ISSN  1066-5234 , pp. 4–119 (English; PDF file , 828.83 KiB, in the Wiley Online Library from John Wiley & Sons, Inc. ).
2. ↑ Klaus Hausmann, Norbert Hülsmann, Renate Radek: Protistology , 3rd edition, Schweizerbart, 2003, p. 96, ISBN 3-510-65208-8
3. ↑ Isabelle Desportes, Joseph Schrével: Treatise on Zoology - Anatomy, Taxonomy, Biology. The Gregarines (2 vols): The Early Branching Apicomplexa . BRILL, 2013, ISBN 978-90-04-25605-7 , p. 7

Web links

Commons : Aconoidasida  - collection of images, videos and audio files