“Heliomonadida”的意思、由来-开放百科全书

词条

Heliomonadida

释义

Classification
Morphology
References

{{Taxobox
| name = Heliomonadida
| image = File:Algen I. (Schizophyceen, Flagellaten, Peridineen) (1910) (17950796051).jpg
| image_caption = Heliomorpha mutans (= Dimorpha mutans), fig. 9-11
| domain = Eukaryota
| unranked_regnum = SAR
| unranked_subregnum = Rhizaria
| phylum = Cercozoa
| classis = Granofilosea
| ordo = Heliomonadida
| ordo_authority = Cavalier-Smith, 1993 emend. Cavalier-Smith, 2012
| familia = Heliomorphidae Cavalier-Smith & Bass 2009
| subdivision_ranks = Genera
| subdivision =

Heliomorpha Cavalier-Smith & Bass 2009
Tetradimorpha Hsiung 1927

}}

The Heliomonadida^[1] (formerly Dimorphida^[2]) are a small group of heliozoan amoeboids that are unusual in possessing flagella throughout their life cycle.

Classification

Genetic studies place them among the Cercozoa, a group including various other flagellates that form filose pseudopodia. This order has recently been placed into the new class of naked filose cercozoans called Granofilosea.^[1]

There are two genera in this order:

Heliomorpha, a tiny organism found in freshwater
the larger Tetradimorpha, which is distinguished by having four rather than two flagella.

Morphology

Bundles of microtubules, typically in square array, arise from a body near the flagellar bases and support the numerous axopods that project from the cell surface.

Dimorphids have a single nucleus, and mitochondria with tubular cristae.

References

1. ^¹{{cite journal |vauthors=Bass D, Chao EE, Nikolaev S, etal |title=Phylogeny of novel naked Filose and Reticulose Cercozoa: Granofilosea cl. n. and Proteomyxidea revised |journal=Protist |volume=160 |issue=1 |pages=75–109 |date=February 2009 |pmid=18952499 |doi=10.1016/j.protis.2008.07.002 |url=http://linkinghub.elsevier.com/retrieve/pii/S1434-4610(08)00044-8}}
2. ^{{cite journal |vauthors=Nikolaev SI, Berney C, Fahrni JF, etal |title=The twilight of Heliozoa and rise of Rhizaria, an emerging supergroup of amoeboid eukaryotes |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=101 |issue=21 |pages=8066–71 |date=May 2004 |pmid=15148395 |pmc=419558 |doi=10.1073/pnas.0308602101 |url=http://www.pnas.org/cgi/pmidlookup?view=long&pmid=15148395}}

4 : Granofilosea|Cercozoa orders|Amoeboids|Taxa named by Thomas Cavalier-Smith

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