Limnofila

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Not to be confused with Limnophila (fly) or Limnophila (plant).

Limnofila
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Phylum: Cercozoa
Class: Granofilosea
Order: Limnofilida
Cavalier-Smith & Bass, 2009
Family: Limnofilidae
Cavalier-Smith & Bass, 2009
Genus: Limnofila
Cavalier-Smith & Bass, 2009[1]
Type species
Limnofila borokensis
Cavalier-Smith & Bass, 2009
Species

Limnofila (from

freshwater habitats and feed on bacteria. They are also present in the soil ecosystem, where they play an important role as predators of bacteria
. They are classified as a single family Limnofilidae and order Limnofilida.

Characteristics

Limnofilida is phylogenetically defined as the largest clade that includes Limnofila, its only current member, but excludes Massisteria, which belongs to order Leucodictyida. It excludes the phylogenetically distant marine Nanofila which is morphologically similar but with unbranched filopodia. They are small

light microscope.[1]

The cellular

microtubules. Unlike Heliomonadida, they have no prominent centrosome.[1]

Ecology

Limnofilida are

plant roots.[3]

Systematics

class=notpageimage|
Type locality of all five Limnofila species[1]

Origin and etymology

The

18S rRNA genes, they were assigned to a clade of Cercozoa known as Granofilosea, which was newly described in the same article. In particular, the genus was assigned to a monotypic order Limnofilida and family Limnofilidae. Limnofilida was defined as the most inclusive clade containing Limnofila but excluding Massisteria, which belongs to Leucodictyida. The name Limnofila comes from Greek limnos 'marsh', and fila 'threads', to emphasise both their exclusively freshwater habitat and their exceedingly thin thread-like filopodia.[1]

Molecular phylogeny

Limnofila, and Limnofilida as a whole, are the earliest

18S rRNA genes, where the clades of environmental DNA are not shown.[1][4]

Granofilosea

Monadofilosa

Species

There are 5 species of Limnofila, all described in the same 2009 paper where the genus was first described. Two species,

freshwater lake known as Priest Pot in Cumbria, England.[5] One species, L. oxoniensis, was isolated from garden soil in Oxford. The remaining two species, L. borokensis and L. mylnikovi, were isolated from samples collected in waste treatment plants of Borok, Yaroslavskaya oblast, Russia, and were originally misidentified as Gymnophrys cometa.[6][1]

  1. Limnofila anglica — Cumbria, England.
  2. Limnofila borokensis — Borok, Russia.
  3. Limnofila longa — Cumbria, England.
  4. Limnofila oxoniensis — Oxford, England.
  5. Limnofila mylnikovi — Borok, Russia (unsequenced).

References

  1. ^
    PMID 18952499
    .
  2. ^
    doi:10.1093/femsec/fiz041
    .
  3. hdl:10852/101716
    .
  4. ISSN 1434-4610
    .
  5. doi:10.15468/lih6qc
    , retrieved 2023-09-22
  6. ^ Nikolaev, S.I.; et al. (2003). "Gymnophrys cometa and Lecythium sp. are Core Cercozoa: Evolutionary Implications" (PDF). Acta Protozoologica. 42: 183–190. Archived from the original (PDF) on 2009-06-17.
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