Pseudodifflugia klarae nov. spec., Bereczkya minuta nov. gen. nov. spec. and Paramphitrema muelleri nov. spec. Three new filose testate amoebae from the plankton of the River Danube

Áron Keve Kiss, Júlia Katalin Török, E. Ács, K. Kiss

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Three new, minute testate amoeban species smaller than 15 μm, including one new genus, are described from the plankton of the River Danube (Hungary) using high resolution video micrography. Pseudodifflugia klarae nov. spec. is characterised by an oval/pyriform, rigid, slightly compressed, scarcely or densely agglutinated test with a length of 8-14 μm. Its aperture is irregular in outline and inconspicuous; the nucleus contains one nucleolus and a few bent rods in the nucleoplasm. Bereczkya nov. gen., an incertae sedis cercozoan, has a minute spherical cell enclosed in a thin, rigid, more or less agglutinated organic test that is filled entirely by the cytoplasm. Its test bears an irregular and inconspicuous aperture. A collar-like ectoplasmic rim is situated in the aperture, from which a pseudopodial stem with filopodia is erected. The nucleus is slightly irregular, without a central nucleolus, but it contains rod-shaped granules in the nucleoplasm. Bereczkya minuta nov. spec. (test length: 3.5-8 μm, the diameter of the ectoplasmic rim: 0.8-2.3 μm) has a spherical test with asymmetric swellings and depressions, agglutinated with refractile mineral and other flat or irregularly-shaped xenosomes that may sometimes be almost entirely absent. Paramphitrema muelleri nov. spec. has a tubular or lemon-like test (length: 13-17 μm), which tapers towards the rigid apertures. The test is rigid, agglutinated and is circular in cross section. The nucleus is vesicular. Thin filopodia, as well as 1-2 thick, straight, unbranched, tubular pseudopodia are produced.

Original languageEnglish
Pages (from-to)97-110
Number of pages14
JournalActa Protozoologica
Volume48
Issue number2
Publication statusPublished - 2009

Fingerprint

Plankton
Danube River
Pseudopodia
Amoeba
Rivers
plankton
pseudopodia
Hungary
testing
cell nucleolus
Minerals
Cytoplasm
lemons
collars
granules
new genus
cytoplasm
minerals
stems

Keywords

  • Bereczkya
  • Paramphitrema muelleri
  • Pseudodifflugia klarae
  • River plankton
  • Testate amoebae

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

@article{4f29c71f8e3143ee8e19442de29f03bd,
title = "Pseudodifflugia klarae nov. spec., Bereczkya minuta nov. gen. nov. spec. and Paramphitrema muelleri nov. spec.: Three new filose testate amoebae from the plankton of the River Danube",
abstract = "Three new, minute testate amoeban species smaller than 15 μm, including one new genus, are described from the plankton of the River Danube (Hungary) using high resolution video micrography. Pseudodifflugia klarae nov. spec. is characterised by an oval/pyriform, rigid, slightly compressed, scarcely or densely agglutinated test with a length of 8-14 μm. Its aperture is irregular in outline and inconspicuous; the nucleus contains one nucleolus and a few bent rods in the nucleoplasm. Bereczkya nov. gen., an incertae sedis cercozoan, has a minute spherical cell enclosed in a thin, rigid, more or less agglutinated organic test that is filled entirely by the cytoplasm. Its test bears an irregular and inconspicuous aperture. A collar-like ectoplasmic rim is situated in the aperture, from which a pseudopodial stem with filopodia is erected. The nucleus is slightly irregular, without a central nucleolus, but it contains rod-shaped granules in the nucleoplasm. Bereczkya minuta nov. spec. (test length: 3.5-8 μm, the diameter of the ectoplasmic rim: 0.8-2.3 μm) has a spherical test with asymmetric swellings and depressions, agglutinated with refractile mineral and other flat or irregularly-shaped xenosomes that may sometimes be almost entirely absent. Paramphitrema muelleri nov. spec. has a tubular or lemon-like test (length: 13-17 μm), which tapers towards the rigid apertures. The test is rigid, agglutinated and is circular in cross section. The nucleus is vesicular. Thin filopodia, as well as 1-2 thick, straight, unbranched, tubular pseudopodia are produced.",
keywords = "Bereczkya, Paramphitrema muelleri, Pseudodifflugia klarae, River plankton, Testate amoebae",
author = "Kiss, {{\'A}ron Keve} and T{\"o}r{\"o}k, {J{\'u}lia Katalin} and E. {\'A}cs and K. Kiss",
year = "2009",
language = "English",
volume = "48",
pages = "97--110",
journal = "Acta Protozoologica",
issn = "0065-1583",
publisher = "Jagiellonian University Press",
number = "2",

}

TY - JOUR

T1 - Pseudodifflugia klarae nov. spec., Bereczkya minuta nov. gen. nov. spec. and Paramphitrema muelleri nov. spec.

T2 - Three new filose testate amoebae from the plankton of the River Danube

AU - Kiss, Áron Keve

AU - Török, Júlia Katalin

AU - Ács, E.

AU - Kiss, K.

PY - 2009

Y1 - 2009

N2 - Three new, minute testate amoeban species smaller than 15 μm, including one new genus, are described from the plankton of the River Danube (Hungary) using high resolution video micrography. Pseudodifflugia klarae nov. spec. is characterised by an oval/pyriform, rigid, slightly compressed, scarcely or densely agglutinated test with a length of 8-14 μm. Its aperture is irregular in outline and inconspicuous; the nucleus contains one nucleolus and a few bent rods in the nucleoplasm. Bereczkya nov. gen., an incertae sedis cercozoan, has a minute spherical cell enclosed in a thin, rigid, more or less agglutinated organic test that is filled entirely by the cytoplasm. Its test bears an irregular and inconspicuous aperture. A collar-like ectoplasmic rim is situated in the aperture, from which a pseudopodial stem with filopodia is erected. The nucleus is slightly irregular, without a central nucleolus, but it contains rod-shaped granules in the nucleoplasm. Bereczkya minuta nov. spec. (test length: 3.5-8 μm, the diameter of the ectoplasmic rim: 0.8-2.3 μm) has a spherical test with asymmetric swellings and depressions, agglutinated with refractile mineral and other flat or irregularly-shaped xenosomes that may sometimes be almost entirely absent. Paramphitrema muelleri nov. spec. has a tubular or lemon-like test (length: 13-17 μm), which tapers towards the rigid apertures. The test is rigid, agglutinated and is circular in cross section. The nucleus is vesicular. Thin filopodia, as well as 1-2 thick, straight, unbranched, tubular pseudopodia are produced.

AB - Three new, minute testate amoeban species smaller than 15 μm, including one new genus, are described from the plankton of the River Danube (Hungary) using high resolution video micrography. Pseudodifflugia klarae nov. spec. is characterised by an oval/pyriform, rigid, slightly compressed, scarcely or densely agglutinated test with a length of 8-14 μm. Its aperture is irregular in outline and inconspicuous; the nucleus contains one nucleolus and a few bent rods in the nucleoplasm. Bereczkya nov. gen., an incertae sedis cercozoan, has a minute spherical cell enclosed in a thin, rigid, more or less agglutinated organic test that is filled entirely by the cytoplasm. Its test bears an irregular and inconspicuous aperture. A collar-like ectoplasmic rim is situated in the aperture, from which a pseudopodial stem with filopodia is erected. The nucleus is slightly irregular, without a central nucleolus, but it contains rod-shaped granules in the nucleoplasm. Bereczkya minuta nov. spec. (test length: 3.5-8 μm, the diameter of the ectoplasmic rim: 0.8-2.3 μm) has a spherical test with asymmetric swellings and depressions, agglutinated with refractile mineral and other flat or irregularly-shaped xenosomes that may sometimes be almost entirely absent. Paramphitrema muelleri nov. spec. has a tubular or lemon-like test (length: 13-17 μm), which tapers towards the rigid apertures. The test is rigid, agglutinated and is circular in cross section. The nucleus is vesicular. Thin filopodia, as well as 1-2 thick, straight, unbranched, tubular pseudopodia are produced.

KW - Bereczkya

KW - Paramphitrema muelleri

KW - Pseudodifflugia klarae

KW - River plankton

KW - Testate amoebae

UR - http://www.scopus.com/inward/record.url?scp=70350361987&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350361987&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:70350361987

VL - 48

SP - 97

EP - 110

JO - Acta Protozoologica

JF - Acta Protozoologica

SN - 0065-1583

IS - 2

ER -