Rivularia

Rivularia is a genus of cyanobacteria of the family Rivulariaceae.[1]

Rivularia
Rivularia nitida
Scientific classification
Domain: Bacteria
Phylum: Cyanobacteria
Class: Cyanophyceae
Order: Nostocales
Family: Rivulariaceae
Genus: Rivularia
C. Agardh, 1886
Type species
R. dura
C. Agardh, 1886

Description

Rivularia is found growing on submerged stones, moist rocks, and damp soils near the riverside. It is found in colonies, and the trichomes are radially arranged within a colony, with each trichome wholly or partially surrounded by a gelatinous sheet. The trichomes have a basal heterocyst. Each trichome has a narrow aptic portion which is whip- or tail-like consisting of a row of small cells. Akinetes are absent in Rivularia. The species multiply with the aid of hormogonia and heterocyst.

Species
  • Rivularia atra Roth ex Bornet & Flahault, 1886
  • Rivularia bullata (Poir) Berkeley ex Bornet & Flahault, 1886
  • Rivularia haematites (De Candolle) Bornet & Flahault, 1886
  • Rivularia jaoi H.-J.Chu, 1952
  • Rivularia nitida C.Agardh ex Bornet & Flahault, 1886
  • Rivularia thermalis Y.-Y.Li, 1984
Species brought into synonymy
  • Rivularia cornudamae Roth, 1797: synonym of Chaetophora lobata Schrank, 1783
  • Rivularia elegans Roth, 1802: synonym of Chaetophora elegans (Roth) C.Agardh, 1812
  • Rivularia endiviaefolia Roth, 1798: synonym of Chaetophora lobata Schrank, 1783
  • Rivularia lloydii P.Crouan & H.Crouan, 1867: synonym of Brachytrichia lloydii (P.Crouan & H.Crouan) P.C.Silva, 1996
  • Rivularia multifida Weber & Mohr, 1804: synonym of Nemalion multifidum (F.Weber & D.Mohr) Chauvin, 1842
  • Rivularia plana Harvey, 1833: synonym of Isactis plana (Harvey) Thuret ex Bornet & Flahault, 1886
  • Rivularia rubra (Hudson) Wahlenberg, 1826: synonym of Nemalion helminthoides (Velley) Batters, 1902
  • Rivularia tuberiformis Smith, 1809: synonym of Leathesia marina (Lyngbye) Decaisne, 1842
  • Rivularia vermiculata Smith, 1808: synonym of Mesogloia vermiculata (Smith) S.F.Gray, 1821
  • Rivularia zosterae Mohr, 1810: synonym of Eudesme virescens (Carmichael ex Berkeley) J.Agardh, 1882

References
  1. Guiry, Michael D. (2014). Rivularia C.Agardh ex Bornet & Flahault, 1886. In: Guiry, M.D. & Guiry, G.M. (2014). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=146623 on 2014-12-09
  • "Rivularia". Algaebase. Retrieved 23 September 2014.

Further reading
  • Rastogia, R.P; Singh, S.P; Incharoensakdic, A; Häder, D.-P; Sinhaa, R.P (January 2014). "Ultraviolet radiation-induced generation of reactive oxygen species, DNA damage and induction of UV-absorbing compounds in the cyanobacterium Rivularia sp. HKAR-4". South African Journal of Botany. 90: 163–169. doi:10.1016/j.sajb.2013.11.006.
  • Berrendero, Esther; Perona, Elvira; Mateo, Pilar (Feb 2008). "Genetic and morphological characterization of Rivularia and Calothrix (Nostocales, Cyanobacteria) from running water". International Journal of Systematic and Evolutionary Microbiology. 58 (Part 2): 447–460. doi:10.1099/ijs.0.65273-0. PMID 18218948.
  • Marco, Sergio; Aboal, Marina; Chaves, Elena; Mulero, Iván; García-Ayala, Alfonsa (2012). "Immunolocalisation of microcystin in colonies of the cynobacterium Rivularia in calcareous streams". Marine and Freshwater Research. 63 (2): 160. doi:10.1071/MF11168.
  • Silva, C., P. Basson & R. Moe (1996). Catalogue of the Benthic Marine Algae of the Indian Ocean. Volume 79 of University of California Publications in Botany (ISBN 0-520-09810-2). doi:10.1017/s0967026297221268


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