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WoRMS taxon detailsAmphidoma languida Tillmann, Salas & Elbrächter, 2012
 729889 (urn:lsid:marinespecies.org:taxname:729889)
accepted
Species
marine
Tillmann, U., Salas, R., Gottschling, M., Krock, B., O'Driscoll, D. & Elbrächter, M. 2012. <i>Amphidoma languida</i> sp. nov. (Dinophyceae) reveals a close relationship between <i>Amphidoma</i> and <i>Azadinium</i>. Protist 163, 710-719., available online at https://doi.org/10.1016/j.protis.2011.10.005 [details]
Note Irish coastal waters, Bantry Bay
From regional or thematic species database
Type locality Irish coastal waters, Bantry Bay [details]
Description Thecal plates of A. languida are thin, but can be clearly observed in light microscopy, and are stainable with calcofluor...
Description Thecal plates of A. languida are thin, but can be clearly observed in light microscopy, and are stainable with calcofluor (not shown). However, due to its small size, the plate pattern was most easily resolved by electron microscopy. The plate formula is Po, cp, X, 6', 0a, 6'', 6C, 5(?) S, 6''', 2''''. Plates are generally smooth, but contain a number of thecal pores. These thecal pores are about 0.1 μm in diameter and are concentrated on the apical plates and characteristically and consistently located at the sutures of pre- and postcingular plates. The number of pores at one location at the sutures of pre- and postcingular plates, however, is slightly variable ranging from one to three. In addition, pores are located at both anterior and posterior rims of the cingular plates. Both epitheca and hypotheca end in conspicuous structures, the prominent apical pore complex (APC), and a conspicuous antapical pore. In addition to the APC, the epitheca is composed of twelve thecal plates. Apical plates form a series of six plates. The first apical plate is long, narrow, and slightly asymmetric in that its right suture to Plate 6' is longer than the left suture to Plate 2'. The other apical plates are rather small and of comparable size. The apical Plates 2'-6' are densely covered by pores with a diameter which varies from 0.09 to 0.11 μm. The number of pores varies between one and eight per plate with two to five pores per plate being most common. On the first apical plate, between one and three thecal pores may be present in addition to a distinctively larger ventral pore (see below). All six precingular plates are large and of comparable size. There are no epithecal intercalary plates. The hypotheca is composed of six postcingular and two antapical plates. The ventrally located Plates 1''' and 6''' and the dorsal Plate 4''' are slightly smaller, the right lateral Plate 5''' usually being the largest of this series. Plate 3''' is six sided and in contact to both antapical plates. The two antapical plates are different on their overall size (2'''' being larger), but similar on their ventral height. The cingulum is wide, about 1/5 of total cell length, and is displaced by about 1/3 of its width. There are six cingular plates with a large dorsal C3 and two smaller ventral cingular plates C1 and C6. The sulcus makes up about 1/3 to 1/2 of the hypotheca length. The sulcal plates are difficult to resolve because of the internal vaulted structure of the flagellar pore region. Nevertheless, at least five sulcal plates can be identified. The anterior sulcal plate (Sa) is roughly diamondshaped and partly invades the epitheca. Two small plates, a median sulcal (Sm) and right sulcal (Sd) plate form the inverted part of the sulcus. A left sulcal plate (Ss) runs horizontally from C1 to C6, thereby separating the posterior sulcal plate (Sp) from the other sulcal plates. In its median and right part, this plate is very narrow and therefore difficult to resolve and to distinguish from the parallel running anterior ridge of the Sp plate. A prominent feature of A. languida is the large antapical pore located at the dorsal side of the large antapical Plate 2''''. This pore, adjacent to a broad rim, is a depressed field of a number of small pores, the number of which is about 15 when viewed from inside the cell. Outer and inner diameter of the broad rim is 0.6 and 0.3 μm, respectively, whereas each single pore has a diameter of about 0.1 μm. The APC is composed of three plates: a pore plate (Po) covered by a cover plate (cp), and the canal plate X. It is round to tear drop-shaped and is bordered by a raised collar formed by the edges of the apical plates. On the ventral side, this collar is open but extends to trace the sutures between Plate 1' and its two joining apical pates 2' and 6'. In the centre of the apical pore plate (Po), an almost circular pore emerges which is covered by a cover plate (cp). A small X-plate is located where the [details] Distribution Widely distributed, The North Atlantic, Indian Ocean.,
Distribution Widely distributed, The North Atlantic, Indian Ocean., [details]
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Amphidoma languida Tillmann, Salas & Elbrächter, 2012. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=729889 on 2024-12-20
Date action by Copyright notice: the information originating from AlgaeBase may not be downloaded or replicated by any means, without the written permission of the copyright owner (generally AlgaeBase). Fair usage of data in scientific publications is permitted.
original description
Tillmann, U., Salas, R., Gottschling, M., Krock, B., O'Driscoll, D. & Elbrächter, M. 2012. <i>Amphidoma languida</i> sp. nov. (Dinophyceae) reveals a close relationship between <i>Amphidoma</i> and <i>Azadinium</i>. Protist 163, 710-719., available online at https://doi.org/10.1016/j.protis.2011.10.005 [details]
basis of record Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]  Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From regional or thematic species database
Description Thecal plates of A. languida are thin, but can be clearly observed in light microscopy, and are stainable with calcofluor (not shown). However, due to its small size, the plate pattern was most easily resolved by electron microscopy. The plate formula is Po, cp, X, 6', 0a, 6'', 6C, 5(?) S, 6''', 2''''. Plates are generally smooth, but contain a number of thecal pores. These thecal pores are about 0.1 μm in diameter and are concentrated on the apical plates and characteristically and consistently located at the sutures of pre- and postcingular plates. The number of pores at one location at the sutures of pre- and postcingular plates, however, is slightly variable ranging from one to three. In addition, pores are located at both anterior and posterior rims of the cingular plates. Both epitheca and hypotheca end in conspicuous structures, the prominent apical pore complex (APC), and a conspicuous antapical pore. In addition to the APC, the epitheca is composed of twelve thecal plates. Apical plates form a series of six plates. The first apical plate is long, narrow, and slightly asymmetric in that its right suture to Plate 6' is longer than the left suture to Plate 2'. The other apical plates are rather small and of comparable size. The apical Plates 2'-6' are densely covered by pores with a diameter which varies from 0.09 to 0.11 μm. The number of pores varies between one and eight per plate with two to five pores per plate being most common. On the first apical plate, between one and three thecal pores may be present in addition to a distinctively larger ventral pore (see below). All six precingular plates are large and of comparable size. There are no epithecal intercalary plates. The hypotheca is composed of six postcingular and two antapical plates. The ventrally located Plates 1''' and 6''' and the dorsal Plate 4''' are slightly smaller, the right lateral Plate 5''' usually being the largest of this series. Plate 3''' is six sided and in contact to both antapical plates. The two antapical plates are different on their overall size (2'''' being larger), but similar on their ventral height. The cingulum is wide, about 1/5 of total cell length, and is displaced by about 1/3 of its width. There are six cingular plates with a large dorsal C3 and two smaller ventral cingular plates C1 and C6. The sulcus makes up about 1/3 to 1/2 of the hypotheca length. The sulcal plates are difficult to resolve because of the internal vaulted structure of the flagellar pore region. Nevertheless, at least five sulcal plates can be identified. The anterior sulcal plate (Sa) is roughly diamondshaped and partly invades the epitheca. Two small plates, a median sulcal (Sm) and right sulcal (Sd) plate form the inverted part of the sulcus. A left sulcal plate (Ss) runs horizontally from C1 to C6, thereby separating the posterior sulcal plate (Sp) from the other sulcal plates. In its median and right part, this plate is very narrow and therefore difficult to resolve and to distinguish from the parallel running anterior ridge of the Sp plate. A prominent feature of A. languida is the large antapical pore located at the dorsal side of the large antapical Plate 2''''. This pore, adjacent to a broad rim, is a depressed field of a number of small pores, the number of which is about 15 when viewed from inside the cell. Outer and inner diameter of the broad rim is 0.6 and 0.3 μm, respectively, whereas each single pore has a diameter of about 0.1 μm. The APC is composed of three plates: a pore plate (Po) covered by a cover plate (cp), and the canal plate X. It is round to tear drop-shaped and is bordered by a raised collar formed by the edges of the apical plates. On the ventral side, this collar is open but extends to trace the sutures between Plate 1' and its two joining apical pates 2' and 6'. In the centre of the apical pore plate (Po), an almost circular pore emerges which is covered by a cover plate (cp). A small X-plate is located where the [details]Distribution Widely distributed, The North Atlantic, Indian Ocean., [details] Harmful effect A. languida from Ireland was found to produce azaspiracids (Krock et al. 2012) and is therefore a potential cause of AZP. No harmful effects have been reported so far. [details] Identification Amphidoma languida, 13 to 15 μm long and 10 to 14 μm wide, differs from all other species of Amphidoma so far described except A. laticincta Kofoid et J.R.Michener by small size. Differs from A. laticincta by larger size of the first postcingular plate and by the anterior position of the ventral pore, which is more posterior in A. laticincta. Tabulation formula: Po, cp, X, 6', 0a, 6'', 6C, 5(?)S, 6''', 2''''." [details] Type locality Irish coastal waters, Bantry Bay [details] |
