Malawimonadidae is a unique and relatively lesser-known group of flagellate protists belonging to the phylum Malawimonada. These organisms are single-celled eukaryotes that are found in various aquatic habitats, including freshwater environments and marine systems.
Several features make Malawimonadidae unique:
Evolutionary position: Malawimonads are considered to be one of the earliest branching lineages of eukaryotes. This makes them particularly interesting for researchers studying the early evolution of eukaryotic cells and their organelles.
Feeding mechanism: Malawimonads are known to be bacterivorous, meaning they feed on bacteria. They possess a unique feeding apparatus called the "malawimonad mastigont system," which is a complex of microtubules, flagella, and other cellular structures that facilitate the capture and ingestion of bacteria.
Flagella arrangement: Malawimonad cells typically have two flagella that are inserted close to each other. One flagellum is directed towards the anterior part of the cell, while the other is directed posteriorly. This flagellar arrangement is unique among protists and is used for both locomotion and feeding.
Mitochondrial relics: The mitochondria in Malawimonadidae are unusual in that they have reduced, highly derived cristae. [1][2][3][4]
^Ruggiero; et al. (2015), "Higher Level Classification of All Living Organisms", PLOS ONE, 10 (4): e0119248, Bibcode:2015PLoSO..1019248R, doi:10.1371/journal.pone.0119248, PMC4418965, PMID 25923521
^Silar, Philippe (2016), "Protistes Eucaryotes: Origine, Evolution et Biologie des Microbes Eucaryotes", HAL Archives-ouvertes: 1–462
^Heiss, Aaron A.; Kolisko, Martin; Ekelund, Fleming; Brown, Matthew W.; Roger, Andrew J.; Simpson, Alastair G. B.; et al. (2018). "Combined morphological and phylogenomic re-examination of malawimonads, a critical taxon for inferring the evolutionary history of eukaryotes". Royal Society Open Science. 5 (4): 171707. Bibcode:2018RSOS....571707H. doi:10.1098/rsos.171707. PMC5936906. PMID 29765641.
^Brown, Matthew W; Heiss, Aaron A; Kamikawa, Ryoma; Inagaki, Yuji; Yabuki, Akinori; Tice, Alexander K; Shiratori, Takashi; Ishida, Ken-Ichiro; Hashimoto, Tetsuo (2018-01-19). "Phylogenomics Places Orphan Protistan Lineages in a Novel Eukaryotic Super-Group". Genome Biology and Evolution. 10 (2): 427–433. doi:10.1093/gbe/evy014. ISSN 1759-6653. PMC5793813. PMID 29360967.
^Cavalier-Smith T (2013). "Early evolution of eukaryote feeding modes, cell structural diversity, and classification of the protozoan phyla Loukozoa, Sulcozoa, and Choanozoa". Eur J Protistol. 49 (2): 115–78. doi:10.1016/j.ejop.2012.06.001. PMID 23085100.
^Heiss, Aaron A.; Kolisko, Martin; Ekelund, Fleming; Brown, Matthew W.; Roger, Andrew J.; Simpson, Alastair G. B.; et al. (2018). "Combined morphological and phylogenomic re-examination of malawimonads, a critical taxon for inferring the evolutionary history of eukaryotes". Royal Society Open Science. 5 (4): 171707. Bibcode:2018RSOS....571707H. doi:10.1098/rsos.171707. PMC5936906. PMID 29765641.
This Excavata-related article is a stub. You can help Wikipedia by expanding it.
malawimonadidae, family, unicellular, eukaryotes, outsize, importance, understanding, eukaryote, phylogeny, malawimonas, jakobiformisscientific, classificationdomain, eukaryotaphylum, malawimonadaclass, malawimonadeaorder, malawimonadidafamily, kelly, nerad, 1. Malawimonadidae is a family of unicellular eukaryotes of outsize importance in understanding eukaryote phylogeny MalawimonadidaeMalawimonas jakobiformisScientific classificationDomain EukaryotaPhylum MalawimonadaClass MalawimonadeaOrder MalawimonadidaFamily MalawimonadidaeO Kelly amp Nerad 1999GeneraGefionella MalawimonasMalawimonadidae is a unique and relatively lesser known group of flagellate protists belonging to the phylum Malawimonada These organisms are single celled eukaryotes that are found in various aquatic habitats including freshwater environments and marine systems Several features make Malawimonadidae unique Evolutionary position Malawimonads are considered to be one of the earliest branching lineages of eukaryotes This makes them particularly interesting for researchers studying the early evolution of eukaryotic cells and their organelles Feeding mechanism Malawimonads are known to be bacterivorous meaning they feed on bacteria They possess a unique feeding apparatus called the malawimonad mastigont system which is a complex of microtubules flagella and other cellular structures that facilitate the capture and ingestion of bacteria Flagella arrangement Malawimonad cells typically have two flagella that are inserted close to each other One flagellum is directed towards the anterior part of the cell while the other is directed posteriorly This flagellar arrangement is unique among protists and is used for both locomotion and feeding Mitochondrial relics The mitochondria in Malawimonadidae are unusual in that they have reduced highly derived cristae 1 2 3 4 Phylogeny editScotokaryota Metamonada Cavalier Smith 1987 emend Cavalier Smith 2003Opimoda Ancyromonadida Cavalier Smith 1998 emend Atkins 2000Malawimonadea Cavalier Smith 2003Amorphea Amoebozoa Luhe 1913 emend Cavalier Smith 1998Obazoa Breviatea Cavalier Smith 2004Apusomonadida Karpov amp Mylnikov 1989OpisthokontaCRuMs 5 Mantamonadida Cavalier Smith 2004Rigifilida Karpov amp Mylnikov 1989Diphylleida Cavalier Smith 1993Taxonomy editPhylum Neolouka Cavalier Smith 2013 6 Class Malawimonadea Cavalier Smith 2003 Order Malawimonadida Cavalier Smith 2003 Family Malawimonadidae O Kelly amp Nerad 1999 Genus Gefionella Heiss Ekelund amp Simpson 2018 7 Species G okellyi Heiss Ekelund amp Simpson 2018 Genus Malawimonas O Kelly amp Nerad 1999 Species M californiana Species M jakobiformis O Kelly amp Nerad 1999References edit Malawimonadidae Retrieved 2009 03 08 Ruggiero et al 2015 Higher Level Classification of All Living Organisms PLOS ONE 10 4 e0119248 Bibcode 2015PLoSO 1019248R doi 10 1371 journal pone 0119248 PMC 4418965 PMID 25923521 Silar Philippe 2016 Protistes Eucaryotes Origine Evolution et Biologie des Microbes Eucaryotes HAL Archives ouvertes 1 462 Heiss Aaron A Kolisko Martin Ekelund Fleming Brown Matthew W Roger Andrew J Simpson Alastair G B et al 2018 Combined morphological and phylogenomic re examination of malawimonads a critical taxon for inferring the evolutionary history of eukaryotes Royal Society Open Science 5 4 171707 Bibcode 2018RSOS 571707H doi 10 1098 rsos 171707 PMC 5936906 PMID 29765641 Brown Matthew W Heiss Aaron A Kamikawa Ryoma Inagaki Yuji Yabuki Akinori Tice Alexander K Shiratori Takashi Ishida Ken Ichiro Hashimoto Tetsuo 2018 01 19 Phylogenomics Places Orphan Protistan Lineages in a Novel Eukaryotic Super Group Genome Biology and Evolution 10 2 427 433 doi 10 1093 gbe evy014 ISSN 1759 6653 PMC 5793813 PMID 29360967 Cavalier Smith T 2013 Early evolution of eukaryote feeding modes cell structural diversity and classification of the protozoan phyla Loukozoa Sulcozoa and Choanozoa Eur J Protistol 49 2 115 78 doi 10 1016 j ejop 2012 06 001 PMID 23085100 Heiss Aaron A Kolisko Martin Ekelund Fleming Brown Matthew W Roger Andrew J Simpson Alastair G B et al 2018 Combined morphological and phylogenomic re examination of malawimonads a critical taxon for inferring the evolutionary history of eukaryotes Royal Society Open Science 5 4 171707 Bibcode 2018RSOS 571707H doi 10 1098 rsos 171707 PMC 5936906 PMID 29765641 nbsp This Excavata related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Malawimonadidae amp oldid 1184185243, wikipedia, wiki, book, books, library,
