Database : MEDLINE
Search on : Carduus [Words]
References found : 513 [refine]
Displaying: 1 .. 10   in format [Detailed]

page 1 of 52 go to page                         

  1 / 513 MEDLINE  
              next record last record
select
to print
Photocopy
Full text

[PMID]: 29444678
[Au] Autor:Geraci A; Amato F; Di Noto G; Bazan G; Schicchi R
[Ad] Address:Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Sezione di Botanica ed Ecologia Vegetale, Università degli Studi di Palermo, Via Archirafi 38, 90123, Palermo, Italy.
[Ti] Title:The wild taxa utilized as vegetables in Sicily (Italy): a traditional component of the Mediterranean diet.
[So] Source:J Ethnobiol Ethnomed;14(1):14, 2018 Feb 14.
[Is] ISSN:1746-4269
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:BACKGROUND: Wild vegetables in the Mediterranean Basin are still often consumed as a part of the diet and, in particular, there is a great tradition regarding their use in Sicily. In this study, an ethnobotanical field investigation was carried out to (a) identify the wild native taxa traditionally gathered and consumed as vegetables in Sicily, comparing the collected ethnobotanical data with those of other countries that have nominated the Mediterranean diet for inclusion in the UNESCO Representative List of the Intangible Cultural Heritage of Humanity and (b) highlight new culinary uses of these plants. METHODS: Interviews were carried out in 187 towns and villages in Sicily between 2005 and 2015. A total of 980 people over the age of 50 were interviewed (mainly farmers, shepherds, and experts on local traditions). Plants recorded were usually collected in collaboration with the informants to confirm the correct identification of the plants. The frequencies of citation were calculated. RESULTS: Two hundred fifty-three taxa (specific and intraspecific) belonging to 39 families, and 128 genera were recorded (26 were cited for the first time). The most represented families were Asteraceae, Brassicaceae, Apiaceae, Amaryllidaceae, Malvaceae, and Polygonaceae. Only 14 taxa were cited by 75% of the people interviewed. The aerial parts of wild plants, including leaves, tender shoots, and basal rosettes, are the main portions collected, while the subterranean parts are used to a lesser extent. For some vegetables, more parts are utilized. Most of the reported vegetables are consumed cooked. In addition to the widely known vegetables (Borago officinalis, Beta spp., Cichorium spp., Brassica spp., Carduus spp., etc.), the so-called ancient vegetables are included (Onopordum illyricum, Centaurea calcitrapa, Nasturtium officinale, Scolymus spp., Smyrnium rotundifolium), and some unique uses were described. Comparing the Sicilian findings to those from other countries, a very high number of vegetable taxa were detected, 72 of which are eaten only in Sicily, while 12 are consumed in all the Mediterranean countries examined. CONCLUSIONS: The research shows a high level of Sicilian knowledge about using wild plants as a traditional food source. Wild vegetables are healthy and authentic ingredients for local and ancient recipes, which are fundamental to the revitalization of quality food strictly connected to traditional agroecosystems.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180218
[Lr] Last revision date:180218
[St] Status:In-Process
[do] DOI:10.1186/s13002-018-0215-x

  2 / 513 MEDLINE  
              first record previous record next record last record
select
to print
Photocopy
Full text

[PMID]: 29177694
[Au] Autor:Palutoglu M; Akgul B; Suyarko V; Yakovenko M; Kryuchenko N; Sasmaz A
[Ad] Address:Geology Department, Firat University, 23119, Elazig, Turkey.
[Ti] Title:Phytoremediation of Cadmium by Native Plants Grown on Mining Soil.
[So] Source:Bull Environ Contam Toxicol;100(2):293-297, 2018 Feb.
[Is] ISSN:1432-0800
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:The Gümüsköy mining area is located about 25 km west of Kutahya and is the largest silver deposit in Turkey. The present study investigated translocation and accumulation of cadmium (Cd) from the soil into 11 native plants. Plant and soil samples were collected from the field, and Cd concentrations were analyzed by inductively coupled plasma mass spectroscopy. Mean Cd values in the soil, root, and shoot of native plants in the study area were 82.8 ± 5, 55.4 ± 6, and 43.5 ± 4 mg kg , respectively. Plants were separated into several groups according to the enrichment coefficients for shoot and root values of plants. These groups showed Carduus nutans and Phlomis could be potentially bioaccumulator plants useful for phytoremediation of mining soils contaminated by Cd.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1711
[Cu] Class update date: 180208
[Lr] Last revision date:180208
[St] Status:In-Process
[do] DOI:10.1007/s00128-017-2220-5

  3 / 513 MEDLINE  
              first record previous record next record last record
select
to print
Photocopy
Full text

[PMID]: 28873755
[Au] Autor:Marengo A; Maxia A; Sanna C; Bertea CM; Bicchi C; Ballero M; Cagliero C; Rubiolo P
[Ad] Address:Dipartimento di Scienze della Vita e dell'Ambiente, sezione di Botanica, Università di Cagliari, Viale Sant'Ignazio da Laconi 13, 09123 Cagliari, Italy; Dipartimento di Scienze della Vita e Biologia dei Sistemi, Unità di Fisiologia Vegetale, Università di Torino, via Quarello 15/A, 10135 Torino, Ita
[Ti] Title:Characterization of four wild edible Carduus species from the Mediterranean region via phytochemical and biomolecular analyses.
[So] Source:Food Res Int;100(Pt 1):822-831, 2017 Oct.
[Is] ISSN:1873-7145
[Cp] Country of publication:Canada
[La] Language:eng
[Ab] Abstract:Carduus species (Compositae) are widely distributed in the Mediterranean area, and traditionally used for both food and medicinal purposes. The hydroalcoholic extracts of four wild edible Carduus species collected in Sardinia (Carduus argyroa Biv., Carduus nutans subsp. macrocephalus (Desf.) Nyman, Carduus pycnocephalus L., Carduus cephalanthus Viv.) were analyzed and characterized by HPLC-PDA-MS/MS and PCR-RFLP of the nrDNA internal transcribed spacer (ITS). Flavonoids and caffeoylquinic acid derivatives were the predominant classes of secondary metabolites characterizing the extracts. The ITS region was sequenced in parallel, and a PCR-RFLP method was applied with three selective restriction enzymes. Statistical analyses, on both chemical and biomolecular results, revealed that individuals clustered according to their taxonomic classification. The combination of the two techniques discriminates the four species within the genus, giving further information on these little-investigated plants, traditionally used in the Mediterranean area and in Sardinia.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170906
[Lr] Last revision date:170906
[St] Status:In-Data-Review

  4 / 513 MEDLINE  
              first record previous record next record last record
select
to print
Photocopy
Full text

[PMID]: 28797264
[Au] Autor:Bijak M; Saluk-Bijak J
[Ad] Address:Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236, Lodz, Poland. michal.bijak@biol.uni.lodz.pl.
[Ti] Title:Flavonolignans inhibit the arachidonic acid pathway in blood platelets.
[So] Source:BMC Complement Altern Med;17(1):396, 2017 Aug 10.
[Is] ISSN:1472-6882
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:BACKGROUND: Arachidonic acid metabolism by cyclooxygenase (COX) is a major pathway for blood platelets' activation, which is associated with pro-thrombotic platelet activity and the production of pro-inflammatory mediators. Inhibition of COX activity is one of the major means of anti-platelet pharmacotherapy preventing arterial thrombosis and reducing the incidence of cardiovascular events. Recent studies have presented that a silymarin (standardized extract of Milk thistle (Silybum marianum)) can inhibit the COX pathway. Accordingly, the aim of our study was to determine the effects of three major flavonolignans (silybin, silychristin and silydianin) on COX pathway activity in blood platelets. METHODS: We determined the effect of flavonolignans on arachidonic acid induced blood platelet aggregation, COX pathway metabolites formation, as well as COX activity in platelets. Additionally, we analysed the potential mechanism of this interaction using the bioinformatic ligand docking method. RESULTS: We observed that tested compounds decrease the platelet aggregation level, both thromboxane A and malondialdehyde formation, as well as inhibit the COX activity. The strongest effect was observed for silychristin and silybin. In our in silico study we showed that silychristin and silybin have conformations which interact with the active COX site as competitive inhibitors, blocking the possibility of substrate binding. CONCLUSIONS: The results obtained from this study clearly present the potential of flavonolignans as novel antiplatelet and anti-inflammatory agents.
[Mh] MeSH terms primary: Anti-Inflammatory Agents/pharmacology
Arachidonic Acid/blood
Blood Platelets/drug effects
Milk Thistle/chemistry
Platelet Aggregation Inhibitors/pharmacology
Platelet Aggregation/drug effects
Silymarin/pharmacology
[Mh] MeSH terms secundary: Binding, Competitive
Blood Platelets/metabolism
Flavonolignans/pharmacology
Humans
Inflammation Mediators/blood
Malondialdehyde/blood
Molecular Docking Simulation
Plant Extracts/pharmacology
Prostaglandin-Endoperoxide Synthases/blood
Silymarin/chemistry
Thromboxane A2/biosynthesis
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (Anti-Inflammatory Agents); 0 (Flavonolignans); 0 (Inflammation Mediators); 0 (Plant Extracts); 0 (Platelet Aggregation Inhibitors); 0 (Silymarin); 27YG812J1I (Arachidonic Acid); 4RKY41TBTF (silybin); 4Y8F71G49Q (Malondialdehyde); 57576-52-0 (Thromboxane A2); 7P89L7W179 (silydianin); EC 1.14.99.1 (Prostaglandin-Endoperoxide Synthases); LK279ER14X (silychristin)
[Em] Entry month:1709
[Cu] Class update date: 170901
[Lr] Last revision date:170901
[Js] Journal subset:IM
[Da] Date of entry for processing:170812
[St] Status:MEDLINE
[do] DOI:10.1186/s12906-017-1897-7

  5 / 513 MEDLINE  
              first record previous record next record last record
select
to print
Photocopy

[PMID]: 28685558
[Au] Autor:Guarino G; Strollo F; Carbone L; Della Corte T; Letizia M; Marino G; Gentile S
[Ad] Address:Department of Clinical and Experimental Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy.
[Ti] Title:Bioimpedance analysis, metabolic effects and safety of the association Berberis aristata/Bilybum marianum: a 52-week double-blind, placebo-controlled study in obese patients with type 2 diabetes.
[So] Source:J Biol Regul Homeost Agents;31(2):495-502, 2017 Apr-Jun.
[Is] ISSN:0393-974X
[Cp] Country of publication:Italy
[La] Language:eng
[Ab] Abstract:Berberine, a quaternary isoquinoline alkaloid present in Berberis aristata, is well known in terms of cholesterol-lowering, hypoglycemic, and insulin sensitizing effects. Because of its low oral bioavailability, to improve intestinal absorption it has been recently combined with silymarin (Silybum marianum). The aim of our placebo controlled study was to evaluate the effects of its association with silymarin on abdominal fat in overweight/obese patients with type 2 diabetes mellitus (T2DM). To do so, 136 obese subjects with T2DM and metabolic syndrome were analyzed for fasting blood glucose and insulin, Insulin Resistance index according to the Homeostatic Model Assessment (HOMA-R), total, HDL and LDL cholesterol, triglycerides, uric acid, BMI, waist circumference, waist to hip ratio and underwent bioelectrical impedance to assess % of abdominal fat. All the above-mentioned parameters, as recorded at enrollment, after 6 months and at the end of the study, had significantly improved in the BBR-treated group in respect to baseline and to the control group. A validated national cardiovascular risk score also improved significantly after BBR treatment in respect to placebo. Our results point to a clinically significant effect in obese people with T2DM and metabolic syndrome. Moreover, for the first time, they provide evidence of a significant uric acid lowering activity as an additive beneficial effect of the association BBR + silymarin.
[Mh] MeSH terms primary: Berberine/administration & dosage
Berberis/chemistry
Diabetes Mellitus, Type 2/drug therapy
Metabolic Syndrome/drug therapy
Milk Thistle/chemistry
Obesity/drug therapy
Silymarin/administration & dosage
[Mh] MeSH terms secundary: Aged
Berberine/chemistry
Diabetes Mellitus, Type 2/blood
Diabetes Mellitus, Type 2/pathology
Diabetes Mellitus, Type 2/physiopathology
Double-Blind Method
Electric Impedance
Female
Humans
Lipids/blood
Male
Metabolic Syndrome/blood
Metabolic Syndrome/pathology
Metabolic Syndrome/physiopathology
Middle Aged
Obesity/blood
Obesity/pathology
Obesity/physiopathology
Silymarin/chemistry
Uric Acid/blood
[Pt] Publication type:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Name of substance:0 (Lipids); 0 (Silymarin); 0I8Y3P32UF (Berberine); 268B43MJ25 (Uric Acid)
[Em] Entry month:1708
[Cu] Class update date: 171116
[Lr] Last revision date:171116
[Js] Journal subset:IM
[Da] Date of entry for processing:170708
[St] Status:MEDLINE

  6 / 513 MEDLINE  
              first record previous record next record last record
select
to print
Photocopy

[PMID]: 28653933
[Au] Autor:Lutfullah G; Rahman A; Ahmad A; Ahmad T; Ali A; Alam J
[Ad] Address:Centre of Biotechnology & Microbiology, University of Peshawar, Pakistan.
[Ti] Title:Comparative studies on rabbit plasma lipid profile fed with Silybum marianum oil, sunflower oil and vegetable ghee.
[So] Source:Pak J Pharm Sci;30(3):875-879, 2017 May.
[Is] ISSN:1011-601X
[Cp] Country of publication:Pakistan
[La] Language:eng
[Ab] Abstract:Present work is aimed to compare the physicochemical characterization and biochemical effects of oil extracted from Silybum Marianum and Sunflower oil, collected from Peshawar (Pakistan). To investigate the comparative effects on the body weight, organ weight and lipid profile, the crude oil of Silybum marianum, edible sunflower oil and vegetable ghee were given to three groups of rabbits under study. Percent proximate composition and food consumption of all rabbits were determined which showed no significant statistical variation. There is no data available about Silybum marianum oil on animal model in literature. This study clearly revealed that oil from Silybum marianum significantly reduces plasma cholesterol level in rabbits. A threefold higher Triglyceride levels was observed in vegetable ghee feeding groups compared with the sunflower and Silybum marianum oil feeding groups. The crude oil of Silybum marianum was found to be safe in rabbits compared with sunflower oil and vegetable ghee. The results of these studies revealed most valuable information and also support the refining and purification to convert this non-edible oil to edible oil.
[Mh] MeSH terms primary: Ghee
Lipids/blood
Milk Thistle/metabolism
Plant Oils/metabolism
[Mh] MeSH terms secundary: Animals
Rabbits
Sunflower Oil
[Pt] Publication type:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Name of substance:0 (Ghee); 0 (Lipids); 0 (Plant Oils); 0 (Sunflower Oil)
[Em] Entry month:1709
[Cu] Class update date: 171116
[Lr] Last revision date:171116
[Js] Journal subset:IM
[Da] Date of entry for processing:170628
[St] Status:MEDLINE

  7 / 513 MEDLINE  
              first record previous record next record last record
select
to print
Photocopy
Full text

[PMID]: 28648817
[Au] Autor:Arafa Keshk W; Zahran SM; Katary MA; Abd-Elaziz Ali D
[Ad] Address:Medical Biochemistry Department, Faculty of Medicine, Tanta University, Egypt. Electronic address: walaaarafaa@gmail.com.
[Ti] Title:Modulatory effect of silymarin on nuclear factor-erythroid-2-related factor 2 regulated redox status, nuclear factor-κB mediated inflammation and apoptosis in experimental gastric ulcer.
[So] Source:Chem Biol Interact;273:266-272, 2017 Aug 01.
[Is] ISSN:1872-7786
[Cp] Country of publication:Ireland
[La] Language:eng
[Ab] Abstract:Non-steroidal anti-inflammatory drugs (NSAIDs) consumption has been commonly associated with gastric mucosal lesions including gastric ulcer. Silymarin (SM) is a flavonoid mixture with anti-oxidant and anti-inflammatory activities which explain its protective role against hepatic and renal injuries. However, its impact on gastric ulcer has not yet been elucidated. Thus we went further to investigate the potential protective effects of SM against indomethacin-induced gastric injury in rats. Pretreatment with SM (50 mg/kg orally) attenuated the severity of gastric mucosal damage as evidenced by decreasing ulcer index (UI) and ulcer score, improvement of disturbed histopathologicl features to be insignificant with those induced by the reference anti-ulcer drug. Pretreatment with SM also suppressed gastric inflammation by decreasing myeloperoxidase activity, tumer necrosis factor-α (TNF- α) and interleukin 6 (IL6) levels along with nuclear factor kappa B p65 (NF-κB) expression. Meanwhile, SM prevent gastric oxidative stress via inhibition of lipid peroxides formation, enhancement of glutathione peroxidase, superoxide dismutase activities and up-regulation of nuclear factor-erythroid-2-related factor 2 (Nrf2), the redox-sensitive master regulator of oxidative stress signaling. In conclusion, the results herein revealed that SM has a gastro-protective effect which is mediated via suppression of gastric inflammation, oxidative stress, increased the anti-oxidant and the cyto-protective defense mechanisms.
[Mh] MeSH terms primary: Anti-Inflammatory Agents, Non-Steroidal/pharmacology
Apoptosis/drug effects
Inflammation/drug therapy
NF-E2-Related Factor 2/metabolism
NF-kappa B/metabolism
Silymarin/pharmacology
Stomach Ulcer/drug therapy
[Mh] MeSH terms secundary: Animals
Anti-Inflammatory Agents, Non-Steroidal/administration & dosage
Anti-Inflammatory Agents, Non-Steroidal/isolation & purification
Indomethacin/antagonists & inhibitors
Inflammation/metabolism
Inflammation/pathology
Milk Thistle/chemistry
NF-E2-Related Factor 2/genetics
NF-kappa B/genetics
Oxidation-Reduction/drug effects
Oxidative Stress/drug effects
Rats
Silymarin/administration & dosage
Silymarin/isolation & purification
Stomach Ulcer/chemically induced
Stomach Ulcer/metabolism
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (Anti-Inflammatory Agents, Non-Steroidal); 0 (NF-E2-Related Factor 2); 0 (NF-kappa B); 0 (Nfe2l2 protein, rat); 0 (Silymarin); XXE1CET956 (Indomethacin)
[Em] Entry month:1710
[Cu] Class update date: 171002
[Lr] Last revision date:171002
[Js] Journal subset:IM
[Da] Date of entry for processing:170627
[St] Status:MEDLINE

  8 / 513 MEDLINE  
              first record previous record next record last record
select
to print
Photocopy
Full text

[PMID]: 28635153
[Au] Autor:Elyasi S; Shojaee FSR; Allahyari A; Karimi G
[Ad] Address:Department of Clinical Pharmacy, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
[Ti] Title:Topical Silymarin Administration for Prevention of Capecitabine-Induced Hand-Foot Syndrome: A Randomized, Double-Blinded, Placebo-Controlled Clinical Trial.
[So] Source:Phytother Res;31(9):1323-1329, 2017 Sep.
[Is] ISSN:1099-1573
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Hand-foot syndrome (HFS) is a frequent dose-limiting adverse reaction of capecitabine in patient with gastrointestinal cancers. Silymarin is a polyphenolic flavonoid extracted from the Silybum marianum that exhibits strong antioxidant and antiinflammatory activities. In this study, we evaluated silymarin efficacy in prevention of capecitabine-induced HFS in patients with gastrointestinal cancers, as the first human study. During this pilot, randomized, double-blinded, placebo-controlled clinical trial, the effect of silymarin gel 1%, which is applied on the palms and soles twice daily starting at the first day of chemotherapy for 9 weeks, on HFS occurrence was assessed. Forty patients fulfilled the inclusion criteria assigned to the silymarin or placebo group. World Health Organization HFS grading scale scores were recorded at baseline and every 3 weeks during these 9 weeks. The median WHO HFS scores were significantly lower in silymarin group at the end of the 9 week (p < 0.05). The scores increased significantly in both placebo and silymarin groups during chemotherapy, but there was a delay for HFS development and progression in silymarin group. Prophylactic administration of silymarin topical formulation could significantly reduce the severity of capecitabine-induced HFS and delays its occurrence in patients with gastrointestinal cancer after 9 weeks of application. Copyright © 2017 John Wiley & Sons, Ltd.
[Mh] MeSH terms primary: Antimetabolites, Antineoplastic/adverse effects
Capecitabine/adverse effects
Hand-Foot Syndrome/drug therapy
Phytotherapy
Silymarin/therapeutic use
[Mh] MeSH terms secundary: Administration, Cutaneous
Aged
Female
Humans
Male
Middle Aged
Milk Thistle/chemistry
Silymarin/administration & dosage
[Pt] Publication type:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Name of substance:0 (Antimetabolites, Antineoplastic); 0 (Silymarin); 6804DJ8Z9U (Capecitabine)
[Em] Entry month:1709
[Cu] Class update date: 170925
[Lr] Last revision date:170925
[Js] Journal subset:IM
[Da] Date of entry for processing:170622
[St] Status:MEDLINE
[do] DOI:10.1002/ptr.5857

  9 / 513 MEDLINE  
              first record previous record next record last record
select
to print
Photocopy
Full text

[PMID]: 28618194
[Au] Autor:Ehl S; Hostert K; Korsch J; Gros P; Schmitt T
[Ad] Address:Department of Biogeography, University of Trier, Trier, Germany.
[Ti] Title:Sexual dimorphism in the alpine butterflies Boloria pales and Boloria napaea: differences in movement and foraging behavior (Lepidoptera: Nymphalidae).
[So] Source:Insect Sci;, 2017 Jun 15.
[Is] ISSN:1744-7917
[Cp] Country of publication:Australia
[La] Language:eng
[Ab] Abstract:Sexual dimorphism is a widespread phenomenon in Lepidoptera. It is reflected in differences in life history, behavior and morphology. Analyses of differences in behavior are mostly difficult and time-consuming, especially in high mountain ecosystems. To enhance our knowledge on sexual dimorphisms of alpine butterflies, we performed a mark-release-recapture study on 2 species common in the Alps: Boloria pales and Boloria napaea. We analysed movement and foraging behavior to investigate differences between sexes. Both sexes were mostly sedentary and the movement distances of males and females similar. However, obvious differences in dispersal behavior between the sexes were found in the movement patterns. Three different patterns were distinguished. Most males showed intensive flight activity, but mostly flew only in a limited part of the entire habitat (i.e., their individual home range) searching for females, whereas females were less flight active and flew only to find places for oviposition or feeding. The third pattern, where individuals flew larger distances, was only observed in a small number of males, which always returned to their home range. Nearly all feeding was observed on Asteraceae. However, males preferred the genera Leontodon and Crepis, while females preferred Leontodon and Carduus. Apart from this sexual difference in foraging, individuals of both sexes were found to be more or less specialised on nectar sources. Flight activity was generally greater in males than females. Therefore, we think that sex-specific requirements in nectar ingredients exist, that is, sugar for the intensive flight activity of males and amino acids for egg production of females.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1706
[Cu] Class update date: 170831
[Lr] Last revision date:170831
[St] Status:Publisher
[do] DOI:10.1111/1744-7917.12494

  10 / 513 MEDLINE  
              first record previous record
select
to print
Photocopy
Full text

[PMID]: 28534179
[Au] Autor:Tellería MC
[Ad] Address:Laboratorio de Sistemática y Biología Evolutiva (LASBE), Edificio Anexo Museo de La Plata, Unidades de Investigación FCNyM, 122 y 60, 1900 FWA, La Plata, Buenos Aires, Argentina. mariatelleria@fcnym.unlp.edu.ar.
[Ti] Title:Spines vs. microspines: an overview of the sculpture exine in selected basal and derived Asteraceae with focus on Asteroideae.
[So] Source:J Plant Res;130(6):1023-1033, 2017 Nov.
[Is] ISSN:1618-0860
[Cp] Country of publication:Japan
[La] Language:eng
[Ab] Abstract:This study presents a detailed examination of the echinate and microechinate sculpturing in relation to the size of pollen grains in 31 selected species of Asteraceae belonging to the subfamilies Barnadesioideae, Mutisioideae, Carduoideae and Asteroideae. The aims were to recognize sculpturing patterns, under LM and SEM, within large and small pollen of both basal and derived species and to explore the features that could have taxonomic value to apply in palynological disciplines. The detailed examination of the exine surface showed both the relevance and limits of sculptural patterns for taxonomy. Under LM, the microechinate sculpture gave little taxonomic information, whereas in the echinate sculpture, three exine types and two subtypes were recognized. Type I included microechinate exine, which is commonly present in large pollen grains of the basal lineages. Types II (subtypes IIa and IIb) and III included echinate and smaller pollen grains. In these types, spines were always regularly arranged and, were characterized by the length, shape, tip, perforations and distribution. Type IIa included more or less conical spines usually with a distended base, less than 4 µm in length, present in species of different tribes like Astereae, Eupatorieae, Helenieae, Gnaphalieae, Senecioideae and Heliantheae to a lesser extent. Type IIb includes slender spines with narrower bases, longer than 4 µm, present in species of Coreopsideae, Heliantheae, Tageteae and Eupatorieae to a lesser extent. Type III included spines with swollen base, blunt tip and perforations over their entire surface. This type was present in only one of the basal species-Carduus thoermeri-and in one species of the derived tribe Helenieae, Gaillardia megapotamica. Probably, this is due to evolutionary convergence.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1705
[Cu] Class update date: 171020
[Lr] Last revision date:171020
[St] Status:In-Process
[do] DOI:10.1007/s10265-017-0956-y


page 1 of 52 go to page                         
   


Refine the search
  Database : MEDLINE Advanced form   

    Search in field  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/PAHO/WHO - Latin American and Caribbean Center on Health Sciences Information