Search results for "Ornithogalum"

showing 3 items of 3 documents

Loncomelos koprulense (Asparagaceae), a new species from southern Turkey

2021

A new species, Loncomelos koprulense (Asparagaceae), is described and illustrated from southern Turkey. It is a very rare endemic species growing on small semi-rocky escarpments within the Köprülü Kanyon in the province of Antalya. Morphologically for its hairy leaves, L. koprulense shows some relationships with L. malatyanum and L. tardum, species localized in Anatolia too. The chromosome number of the new species is 2n = 2x = 22. Geographical distribution map for L. koprulense, L. malatyanum and L. tardum is provided.

0106 biological sciences0301 basic medicineOrnithogaleaeChromosome numberTurkeyLiliopsidaZoologyAsparagalesPlant ScienceOrnithogalum s.l.BiologyDistributionMediterranean01 natural sciences03 medical and health sciencesDistribution karyology Mediterranean Ornithogalum s.l. Ornithogaleae taxonomykaryologytaxonomyAsparagaceaeLoncomelosHyacinthaceaeEndemismPlantaeEcology Evolution Behavior and SystematicsAsparagaceaeSettore BIO/02 - Botanica SistematicaBotanyKaryotype030108 mycology & parasitologybiology.organism_classificationTracheophytaQK1-989Taxonomy (biology)Loncomelos010606 plant biology & botanyResearch ArticlePhytoKeys
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<p><strong>Cytotaxonomical remarks on <em>Loncomelos visianicum </em>(Hyacinthaceae), a poorly known species endemic to Croat…

2020

Loncomelos visianicum, a rare and poorly known geophyte of the Croatian flora, was described from the remote and uninhabited Adriatic island of Palagruža as Ornithogalum visianicum, and it has not been collected again for over a century. Basing on living materials, recently rediscovered in the locus classicus, it was possible to carry out a careful investigation regarding the morphology, karyology, leaf anatomy, and ecology of this very peculiar species. It is triploid, showing 2n = 42 + 0–5B chromosomes, taxonomically quite isolated, showing some morphological relationships with L. narbonense and L. creticum. Currently, L. visianicum is represented by a low number of individuals growing in…

0106 biological sciencesFloraOrnithogalumbiologyZoologyIdentification keyMorphology (biology)Plant Sciencebiology.organism_classification010603 evolutionary biology01 natural sciencesTaxonGenusConservation statusTaxonomy (biology)Ecology Evolution Behavior and Systematics010606 plant biology & botanyPhytotaxa
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Steroidal glycosides from Ornithogalum dubium Houtt

2018

The phytochemical study of Ornithogalum dubium Houtt. (Asparagaceae) led to the isolation of five undescribed steroidal glycosides together with two known ones. Their structures were established by using NMR analysis and mass spectrometry as (25R)-3β-hydroxyspirost-5-en-1β-yl O-α-L-arabinopyranosyl-(1 → 2)-α-L-rhamnopyranoside, (25S)-3β-hydroxyspirost-5-en-1β-yl O-β-D-glucopyranosyl-(1 → 6)-β-D-glucopyranoside, (22S)-16β-[(α-L-rhamnopyranosyl)oxy]-22-hydroxycholest-5-en-3β-yl O-β-D-glucopyranosyl-(1 → 4)-β-D-glucopyranoside, (22S,23S)-1β,3β,11α,16β,23-pentahydroxy-5α-cholest-24-en-22β-yl β-D-glucopyranoside, (22S,23S)-3β-[(β-D-glucopyranosyl)oxy]-22,23-dihydroxy-5α-cholest-24-en-16β-yl O-α-…

Models Molecular0106 biological sciencesSteroidal glycosidesStereochemistryAntineoplastic AgentsHL-60 CellsPlant ScienceHorticulture01 natural sciencesBiochemistryAsparagaceaeCarbohydrate ConformationmedicineHumansCytotoxic T cellGlycosidesCytotoxicityMolecular BiologyCisplatinOrnithogalum dubiumbiology010405 organic chemistryChemistryGeneral Medicinebiology.organism_classificationmedicine.disease0104 chemical sciencesLeukemiaPhytochemicalA549 CellsOrnithogalumSteroids010606 plant biology & botanymedicine.drugPhytochemistry
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