The name ichthyothere literally translates as fish poison. These plants' active constituent is a chemical called ichthyothereol, which is a polyyne compound that is highly toxic to fish and mammals.[4]Ichthyothere terminalisleaves have traditionally been used to make poisoned bait by indigenous peoples of the lower Amazon basin.[4]
Ichthyothereol, a potent fish poison found in members of this genus
This genus is characterized by the small capitulum with few (usually one or two) fertile ray florets. It lacks an expanded outer series of herbaceous involucral bracts or phyllaries. These tend to be much reduced.
Ichthyothere scandens and Ichthyothere garcia-barrigae, both found at elevations above 1,000m, belong to a unique subgenus within Ichthyothere. The other species are small herbs with an erect stem, showing tightly clustered or glomerulate groups of capitula. They occur below 1,000 m elevation.
Its taxonomic status has been revised several times. It was classified in the subtribes Melampodiinae, Milleriinae and then in a group of unclassified taxa. Recent molecular phylogenetic research has now placed the genus Ichthyothere in the subtribe Espeletiinae. It may be a sister taxon to the Espeletia complex.[5]
^Robinson H., 1980 Studies in the Heliantheae (Asteraceae). XXVI. New species of Ichthyothere. Phytologia 47: 128-128
^ abCascon, Seiva C.; Mors, Walter B.; Tursch, Bernard M.; Aplin, Robin T.; Durham, Lois J. (1965). "Ichthyothereol and Its Acetate, the Active Polyacetylene Constituents of Ichthyothere terminalis (Spreng.) Malme, a Fish Poison from the Lower Amazon". Journal of the American Chemical Society. 87 (22): 5237–5241. doi:10.1021/ja00950a044. ISSN 0002-7863. PMID 5844817.
^"Ichthyothere Mart". Plants of the World Online. Royal Botanic Gardens, Kew. 2022. Retrieved 1 December 2022.
January 01, 1970
ichthyothere, genus, flowering, plants, found, parts, south, america, amazon, central, america, elliptica, scientific, classification, kingdom, plantae, clade, tracheophytes, clade, angiosperms, clade, eudicots, clade, asterids, order, asterales, family, aster. Ichthyothere is a genus of flowering plants found in parts of South America the Amazon and Central America 1 2 3 Ichthyothere Ichthyothere elliptica Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Eudicots Clade Asterids Order Asterales Family Asteraceae Subfamily Asteroideae Tribe Millerieae Subtribe Espeletiinae Genus IchthyothereMart 1830 Synonyms Torrentia Vell Latreillea DC The name ichthyothere literally translates as fish poison These plants active constituent is a chemical called ichthyothereol which is a polyyne compound that is highly toxic to fish and mammals 4 Ichthyothere terminalis leaves have traditionally been used to make poisoned bait by indigenous peoples of the lower Amazon basin 4 Ichthyothereol a potent fish poison found in members of this genus This genus is characterized by the small capitulum with few usually one or two fertile ray florets It lacks an expanded outer series of herbaceous involucral bracts or phyllaries These tend to be much reduced Ichthyothere scandens and Ichthyothere garcia barrigae both found at elevations above 1 000m belong to a unique subgenus within Ichthyothere The other species are small herbs with an erect stem showing tightly clustered or glomerulate groups of capitula They occur below 1 000 m elevation Its taxonomic status has been revised several times It was classified in the subtribes Melampodiinae Milleriinae and then in a group of unclassified taxa Recent molecular phylogenetic research has now placed the genus Ichthyothere in the subtribe Espeletiinae It may be a sister taxon to the Espeletia complex 5 Species Species accepted by the Plants of the World Online as of December 2022 6 Ichthyothere connata S F Blake Ichthyothere cordata Malme Ichthyothere cunabi Mart Ichthyothere davidsei H Rob Ichthyothere elliptica H Rob Ichthyothere garcia barrigae H Rob Ichthyothere grandifolia S F Blake Ichthyothere granvillei H Rob Ichthyothere hirsuta Gardner Ichthyothere integrifolia Baker Ichthyothere latifolia Baker Ichthyothere linearis Baker Ichthyothere macdanielii H Rob Ichthyothere matogrossensis R C A Pereira amp Semir Ichthyothere mollis Baker Ichthyothere palustris Malme Ichthyothere pastazensis H Rob Ichthyothere perfoliata R C A Pereira amp Semir Ichthyothere peruviana Baker Ichthyothere petiolata H Rob Ichthyothere rufa Gardner Ichthyothere sasakiae Frisby amp D J N Hind Ichthyothere scandens S F Blake Ichthyothere suffruticosa Gardner Ichthyothere terminalis S F Blake Ichthyothere ternifolia Baker Ichthyothere woodii Frisby amp D J N HindReferences edit Martius Carl Friedrich Philipp von 1830 Repertorium fur die Pharmacie 35 195 Tropicos Ichthyothere Mart Robinson H 1980 Studies in the Heliantheae Asteraceae XXVI New species of Ichthyothere Phytologia 47 128 128 a b Cascon Seiva C Mors Walter B Tursch Bernard M Aplin Robin T Durham Lois J 1965 Ichthyothereol and Its Acetate the Active Polyacetylene Constituents of Ichthyothere terminalis Spreng Malme a Fish Poison from the Lower Amazon Journal of the American Chemical Society 87 22 5237 5241 doi 10 1021 ja00950a044 ISSN 0002 7863 PMID 5844817 Molecular phylogenetics of the Espeletia complex Asteraceae Ichthyothere Mart Plants of the World Online Royal Botanic Gardens Kew 2022 Retrieved 1 December 2022 Retrieved from https en wikipedia org w index php title Ichthyothere amp oldid 1193404645, wikipedia, wiki, book, books, library,
