Distribution of seed fatty acids and the taxonomy of Vochysiaceae |
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| Affiliation: | 1. Santo Amaro University, School of Biology, Rua Prof. Enéas de Siqueira Neto 340, CEP 04829-300, São Paulo, SP, Brazil;2. University of São Paulo, Institute of Biosciences, C. Postal 11461, CEP 05422-970, São Paulo, SP, Brazil;1. Laboratório de Estudos Integrados de Plantas, Departamento de Botânica e Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso, Cuiabá, Brazil;2. Departamento de Botânica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil;3. Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Centro Politécnico, Curitiba, Brazil;4. Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil;5. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (DiPeq-JBRJ), Rio de Janeiro, Rio de Janeiro, Brazil;6. Institute of Systematic Botany, The New York Botanical Garden, Bronx, NY, USA;7. Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil;8. Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil;1. Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China;2. Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL, USA;1. Department of Chemistry, Faculty of Science, University of Kragujevac, Radoja Domanovića 12, 34000 Kragujevac, Serbia;2. Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia;3. Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia;4. Institute for Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade, Serbia;5. Vinča Institute of Nuclear Science, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia;1. Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China;2. School of Materials Science and Engineering, Instrumental Analysis and Research Center, Sun Yat-sen University, Guangzhou 510275, China;3. Department of Medical Devices, Guangdong Food and Drug Vocational College, Guangzhou 510520, China;1. School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China;2. CRCC TANGSHANG CO., Ltd., Tangshan, Hebei 064000, PR China;3. The University of Auckland, Auckland 1142, New Zealand |
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| Abstract: | The distribution of seed fatty acids of 16 species of Vochysiaceae native to Brazil, corresponding to the genera Callisthene, Qualea, Salvertia and Vochysia, and amounting to 57 samples, were studied. The methyl esters of the fatty acids were analyzed by GC–EIMS. For most species, fatty acid patterns are seemingly useful for species characterization. Intraspecific variability of samples of Salvertia grandiflora seems to have geographic significance. With one exception, palmitic and oleic acids predominate in the fatty acids distribution of Qualea and Callisthene. Q. grandiflora possesses exceptional amounts of lauric acid. Relatively high amounts of either C20–C22 (saturated or monounsaturated) or stearic acids characterize Salvertia and Vochysia. UPGMA analysis of fatty acids distribution based on Euclidean distances resulted in a cluster combining Callisthene and all samples of Qualea, except Q. grandiflora. Samples of Vochysia are combined into several clusters. The dendrogram is suggestive of taxonomic relationships, allowing the distinction of taxa down to the sub-sectional level. V. pyramidalis, from section Ciliantha, subsection Ferrugineae, has closer chemical affinities with species of section Vochysiella, subsection Decorticantes. Comparing with monomers of polysaccharide seed cell walls of Vochysiaceae, fatty acid patterns revealed lower intraspecific variability and higher taxonomic resolution. |
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