New records of nine ciliates (Protozoa: Ciliophora) from Korea: Brief descriptions and remarks
Author
Min, Kang-San Kim and Gi-Sik
mingisik@inha.ac.kr
text
Journal of Species Research
2018
7
4
315
322
journal article
10.12651/JSR.2018.7.4.315
2713-8615
13161307
3.
Holostichides dumonti
Foissner, 2000
(
Fig. 3
)
Material examined.
Soil
sample taken from
Wangsan-ri
,
Jung-gu
,
Incheon
,
South Korea
(
37°26
ʹ
47
ʺ
N
126°23
ʹ
40
ʺ
E
) on
February 2018
.
Diagnosis.
Cell size 130-140 × 30-35 μm in protargol preparations, elongated ellipsoidal, flexible; adoral zone about 30% of body length, 36-40 adoral membranelles; 60-62 macronuclear nodules; contractile vacuole at left mid-body; cortical granules colorless, arranged as longitudinal rows; 3 frontal and 2 frontoterminal cirri; 1 buccal cirrus; about 15 cirri in midventral pairs; 2 or 3 additional midventral row; transverse cirri lacking; 1 left (47-49 cirri) and 1 right (44-47 cirri) marginal cirral row; invariably 5 dorsal kineties.
Fig. 2.
Photomicrographs of
Anteholosticha verrucosa
from life (A, B) and after protargol impregnation (C, D). (A, C) Ventral views. (B) Dorsal cilia (arrows) and cortical granules (arrowheads) on dorsal surface. (D) Arrows indicate basal bodies on dorsal surface. Scale bars= 50 μm.
Fig. 3.
Photomicrographs of
Holostichides dumonti
from after protargol impregnation (A-D). (A) Arrow indicates caudal cirri. (B, C) Arrows indicate midventral cirral rows. (D) Dorsal view. 1-5, dorsal kineties. Scale bar = 100 μm.
Fig. 4.
Photomicrographs of
Amphisiella australis
from after protargol impregnation (A, B). (A) Ventral view. (B) Dorsal view. Scale bar= 50 μm.
Remarks.
The Korean population follows most morphological features of the Finnish (
type
) population, though the former only differs from the latter by the number of macronuclear nodules (60-84 vs. 100-150) (
Berger, 2006
). In comparison with its congeners,
H. terrae
can be separated from
H. dumonti
by the number of midventral rows (2 or 3 vs. 2) and the rod-shaped structure in the wall of the pharynx (present vs. absent) (
Jung
et al
., 2017a
). The other
Holostichides
species
(
H. chardezi
,
H. heterotypicus
and
H. typicus
) have a shorter undulating membrane compared to
H. dumonti
(
Kim
et al
., 2017
)
.
Deposition.
Three voucher slides with protargol-impregnated specimens are deposited in the National Institute of Biological Resources in
Korea
(NIBRPR0000109441-NI BRPR0000109443).