Klebsormidium | |
---|---|
Scientific classification | |
(unranked): | Viridiplantae |
(unranked): | Charophyta |
Class: | Klebsormidiophyceae |
Order: | Klebsormidiales |
Family: | Klebsormidiaceae |
Genus: |
Klebsormidium P.C.Silva, Mattox & W.H.Blackwell [1] [2] |
Species | |
See species list. |
Klebsormidium is a genus of filamentous charophyte green algae comprising 20 species. [1] The name was proposed in 1972 to resolve confusion in application and status of Hormidium [Note 1] and was given for the German botanist Georg Albrecht Klebs. [Note 2]
The algae occurs mostly in soil and on moist substrates, nevertheless, aquatic and one marine species are also known. Many Klebsormidium-species are able to synthesize substances for UV protection, the so-called mycosporine-like amino acids. The draft genome sequence of Klebsormidium nitens NIES-2285 (called K. flaccidum at the time of publication) was published in 2014. [3]
Klebsormidium forms uniseriate (one cell thick), unbranched filaments. Cells are cylindrical or barrel-shaped. The cell wall may be thin or thickened, and is sometimes made of H-shaped pieces. Each cell contains a single parietal chloroplast which encircles around 40 to 70% of the cell wall, usually with a single pyrenoid. [4]
Klebsormidium reproduces asexually but not sexually. It produces zoospores with two flagella, which are released from cells through a pore. It can also produce aplanospores and akinetes. [4]
The genus can be difficult to distinguish from Ulothrix, but Ulothrix tends to have chloroplasts that are wider and encircling nearly all of the cell. [4]
The valid species currently considered to belong to this genus are:
The species of Klebsormidium are in critical need of a taxonomic revision. Traditional morphological characteristics used to delimit the taxa, such as the width of filaments or shape of cells, are unreliable and do not map well to phylogenetic groups. [5]
Klebsormidium | |
---|---|
Scientific classification | |
(unranked): | Viridiplantae |
(unranked): | Charophyta |
Class: | Klebsormidiophyceae |
Order: | Klebsormidiales |
Family: | Klebsormidiaceae |
Genus: |
Klebsormidium P.C.Silva, Mattox & W.H.Blackwell [1] [2] |
Species | |
See species list. |
Klebsormidium is a genus of filamentous charophyte green algae comprising 20 species. [1] The name was proposed in 1972 to resolve confusion in application and status of Hormidium [Note 1] and was given for the German botanist Georg Albrecht Klebs. [Note 2]
The algae occurs mostly in soil and on moist substrates, nevertheless, aquatic and one marine species are also known. Many Klebsormidium-species are able to synthesize substances for UV protection, the so-called mycosporine-like amino acids. The draft genome sequence of Klebsormidium nitens NIES-2285 (called K. flaccidum at the time of publication) was published in 2014. [3]
Klebsormidium forms uniseriate (one cell thick), unbranched filaments. Cells are cylindrical or barrel-shaped. The cell wall may be thin or thickened, and is sometimes made of H-shaped pieces. Each cell contains a single parietal chloroplast which encircles around 40 to 70% of the cell wall, usually with a single pyrenoid. [4]
Klebsormidium reproduces asexually but not sexually. It produces zoospores with two flagella, which are released from cells through a pore. It can also produce aplanospores and akinetes. [4]
The genus can be difficult to distinguish from Ulothrix, but Ulothrix tends to have chloroplasts that are wider and encircling nearly all of the cell. [4]
The valid species currently considered to belong to this genus are:
The species of Klebsormidium are in critical need of a taxonomic revision. Traditional morphological characteristics used to delimit the taxa, such as the width of filaments or shape of cells, are unreliable and do not map well to phylogenetic groups. [5]