Klebsormidium is a genus of filamentous charophytegreen 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]
Speciesedit
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]
^ abGuiry, M.D.; Guiry, G.M. (2008). "Klebsormidium". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Retrieved 2011-01-17.
^Silva, P.C.; Mattox, K.R.; Blackwell, W.H. Jr (1972). "The generic name Hormidium as applied to green algae". Taxon. 21 (5/6): 639–645. doi:10.2307/1219167. JSTOR 1219167.
^ abcJohn, David M.; Rindi, Fabio (2014). "Chapter 8. Filamentous (Nonconjugating) and Plantlike Green Algae". In Wehr, John D.; Sheath, Robert G.; Kociolek, J. Patrick (eds.). Freshwater Algae of North America: Ecology and Classification (2 ed.). Elsevier Inc. ISBN978-0-12-385876-4.
^Rindi, Fabio; Guiry, Michael D.; López-Bautista, Juan M. (2008). "Distribution, Morphology, and Phylogeny Of Klebsormidium (Klebsormidiales, Charophyceae) in Urban Environments in Europe". Journal of Phycology. 44 (6): 1529–1540. doi:10.1111/j.1529-8817.2008.00593.x. PMID 27039867. S2CID 30622039.
External linksedit
Wikispecies has information related to Klebsormidium.
klebsormidium, genus, filamentous, charophyte, green, algae, comprising, species, name, proposed, 1972, resolve, confusion, application, status, hormidium, note, given, german, botanist, georg, albrecht, klebs, note, scientific, classification, unranked, virid. 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 KlebsormidiumScientific classification unranked Viridiplantae unranked CharophytaClass KlebsormidiophyceaeOrder KlebsormidialesFamily KlebsormidiaceaeGenus KlebsormidiumP C Silva Mattox amp W H Blackwell 1 2 SpeciesSee species list Klebsormidium bilatum 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 Contents 1 Description 2 Species 3 Notes 4 References 5 External linksDescription editKlebsormidium 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 Species editThe valid species currently considered to belong to this genus are Klebsormidium acidophilum Klebsormidium bilatum Klebsormidium crenulatum Klebsormidium dissectum Klebsormidium drouetii Klebsormidium elegans Klebsormidium flaccidum Klebsormidium fluitans Klebsormidium fragile Klebsormidium klebsii Klebsormidium lamellosum Klebsormidium montanum Klebsormidium mucosum Klebsormidium nitens Klebsormidium pseudostichococcus Klebsormidium scopulinum Klebsormidium sterile Klebsormidium subtile Klebsormidium subtilissimum Klebsormidium tribonematoideum 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 Notes edit Hormidium nitens G A Klebs 1896 Georg Albrecht Klebs 1857 1918 Dinophyceae Chrysophyceae and Xanthophyceae specialistReferences edit a b Guiry M D Guiry G M 2008 Klebsormidium AlgaeBase World wide electronic publication National University of Ireland Galway Retrieved 2011 01 17 Silva P C Mattox K R Blackwell W H Jr 1972 The generic name Hormidium as applied to green algae Taxon 21 5 6 639 645 doi 10 2307 1219167 JSTOR 1219167 Hori Koichi et al 2014 Klebsormidium flaccidum genome reveals primary factors for plant terrestrial adaptation Nature Communications 5 3978 Bibcode 2014NatCo 5 3978H doi 10 1038 ncomms4978 PMC 4052687 PMID 24865297 a b c John David M Rindi Fabio 2014 Chapter 8 Filamentous Nonconjugating and Plantlike Green Algae In Wehr John D Sheath Robert G Kociolek J Patrick eds Freshwater Algae of North America Ecology and Classification 2 ed Elsevier Inc ISBN 978 0 12 385876 4 Rindi Fabio Guiry Michael D Lopez Bautista Juan M 2008 Distribution Morphology and Phylogeny Of Klebsormidium Klebsormidiales Charophyceae in Urban Environments in Europe Journal of Phycology 44 6 1529 1540 doi 10 1111 j 1529 8817 2008 00593 x PMID 27039867 S2CID 30622039 External links edit nbsp Wikispecies has information related to Klebsormidium Images Archived 2021 10 20 at the Wayback Machine of Klebsormidium at Algaebase nbsp This green algae related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Klebsormidium amp oldid 1215905715, wikipedia, wiki, book, books, library,
