|
Parmales
The Parmales are an order of marine microalgae within the Bolidophyceae class. They are found worldwide and characterized by a cell wall composed of 5-8 interlocking silica plates with distinct forms. They were initially thought to be loricate choanoflagellates but were shown to be a separate phyla entirely upon the discovery of chloroplasts, placing it among the photosynthetic stramenopiles. The group is divided into two distinct morphologies- the naked and mobile bolidophyte form and the non-mobile and silica-plate covered parmalean form. The bolidophyte form lacks silica plates and has two unequal flagella inserted ventrally, vaguely reminiscent of ''Chlamydomonas''. The parmalean form is similar to the diatoms as it is coated in silicate plates. These silicate plates are used to divide the Parmales into separate genera based upon the number and location of the siliceous plates. Unlike the diatoms, the Parmales are able to grow in silica-limiting environments because the synt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triparma Retinervis
''Triparma'' is a genus of unicellular algae in the family Triparmaceae in the order Parmales. They form siliceous plates on the cell surface that aid in identification. ''Triparma'' is distinguished by its possession of three shield plates, three triradiate girdle plates, a triradiate girdle plate with notched ends, and a small ventral plate. It was first described by Booth & Marchant in 1987 and the holotype is ''Triparma columacea''. ''Triparma'' cells have two forms: the motile, naked form and the non-motile siliceous form. The motile cells propelled by two flagella of unequal length, typical of heterokonts. The non-motile forms do not possess flagella but instead have a silicified cell wall with a distinctive plate morphology: three shield plates, three oblong girdle plates, a triradiate dorsal plate with rounded ends, and a large ventral plate. Both forms contain a single, dorsal chloroplast that contains chlorophylls ''a'' and ''c1-3'' as well as fucoxanthin. They ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triparma Mediterranea
''Triparma'' is a genus of unicellular algae in the family Triparmaceae in the order Parmales. They form siliceous plates on the cell surface that aid in identification. ''Triparma'' is distinguished by its possession of three shield plates, three triradiate girdle plates, a triradiate girdle plate with notched ends, and a small ventral plate. It was first described by Booth & Marchant in 1987 and the holotype is ''Triparma columacea''. ''Triparma'' cells have two forms: the motile, naked form and the non-motile siliceous form. The motile cells propelled by two flagella of unequal length, typical of heterokonts. The non-motile forms do not possess flagella but instead have a silicified cell wall with a distinctive plate morphology: three shield plates, three oblong girdle plates, a triradiate dorsal plate with rounded ends, and a large ventral plate. Both forms contain a single, dorsal chloroplast that contains chlorophylls ''a'' and ''c1-3'' as well as fucoxanthin. They are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triparma Laevis
''Triparma'' is a genus of unicellular algae in the family Triparmaceae in the order Parmales. They form siliceous plates on the cell surface that aid in identification. ''Triparma'' is distinguished by its possession of three shield plates, three triradiate girdle plates, a triradiate girdle plate with notched ends, and a small ventral plate. It was first described by Booth & Marchant in 1987 and the holotype is ''Triparma columacea''. ''Triparma'' cells have two forms: the motile, naked form and the non-motile siliceous form. The motile cells propelled by two flagella of unequal length, typical of heterokonts. The non-motile forms do not possess flagella but instead have a silicified cell wall with a distinctive plate morphology: three shield plates, three oblong girdle plates, a triradiate dorsal plate with rounded ends, and a large ventral plate. Both forms contain a single, dorsal chloroplast that contains chlorophylls ''a'' and ''c1-3'' as well as fucoxanthin. They ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triparma Eleuthera
''Triparma'' is a genus of unicellular algae in the family Triparmaceae in the order Parmales. They form siliceous plates on the cell surface that aid in identification. ''Triparma'' is distinguished by its possession of three shield plates, three triradiate girdle plates, a triradiate girdle plate with notched ends, and a small ventral plate. It was first described by Booth & Marchant in 1987 and the holotype is ''Triparma columacea''. ''Triparma'' cells have two forms: the motile, naked form and the non-motile siliceous form. The motile cells propelled by two flagella of unequal length, typical of heterokonts. The non-motile forms do not possess flagella but instead have a silicified cell wall with a distinctive plate morphology: three shield plates, three oblong girdle plates, a triradiate dorsal plate with rounded ends, and a large ventral plate. Both forms contain a single, dorsal chloroplast that contains chlorophylls ''a'' and ''c1-3'' as well as fucoxanthin. They are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triparma Columacea
''Triparma'' is a genus of unicellular algae in the family Triparmaceae in the order Parmales. They form siliceous plates on the cell surface that aid in identification. ''Triparma'' is distinguished by its possession of three shield plates, three triradiate girdle plates, a triradiate girdle plate with notched ends, and a small ventral plate. It was first described by Booth & Marchant in 1987 and the holotype is ''Triparma columacea''. ''Triparma'' cells have two forms: the motile, naked form and the non-motile siliceous form. The motile cells propelled by two flagella of unequal length, typical of heterokonts. The non-motile forms do not possess flagella but instead have a silicified cell wall with a distinctive plate morphology: three shield plates, three oblong girdle plates, a triradiate dorsal plate with rounded ends, and a large ventral plate. Both forms contain a single, dorsal chloroplast that contains chlorophylls ''a'' and ''c1-3'' as well as fucoxanthin. They ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetraparma Trullifera
''Tetraparma'' is a genus of unicellular algae in the family Triparmaceae in the order Parmales. They form siliceous plates on the cell surface that aid in identification. ''Tetraparma'' is distinguished by its possession of three shield plates that may have everted rims, three triradiate girdle plates, a triradiate dorsal plate with notched ends, and a large ventral plate. It was first described by Booth & Marchant in 1987 and the holotype is ''Triparma columacea''. ''Tetraparma'' cells have two forms: the motile, naked form and the non-motile siliceous form. The motile cells propelled by two flagella of unequal length, typical of heterokonts. The non-motile forms do not possess flagella but instead have a silicified cell wall with a distinctive plate morphology: three shield plates, three triradiate girdle plates, a triradiate dorsal plate with notched ends, and a small ventral plate. Both forms contain a single, dorsal chloroplast that contains chlorophylls ''a'' and ''c1-3'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
