Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.198.500.250 [Categoria DeCS]
Referências encontradas : 368 [refinar]
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[PMID]:29338010
[Au] Autor:de Luis M; Bartolomé C; García Cardo Ó; Álvarez-Jiménez J
[Ad] Endereço:Departamento de Ciencias de la Vida, Facultad de Biología, C.Ambientales y Químicas Universidad de Alcalá, Alcalá de Henares (Madrid), Spain.
[Ti] Título:Gypsophila bermejoi G. López: A possible case of speciation repressed by bioclimatic factors.
[So] Source:PLoS One;13(1):e0190536, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Gypsophila bermejoi G. López is an allopolyploid species derived from the parental G. struthium L. subsp. struthium and G. tomentosa L. All these plants are gypsophytes endemic to the Iberian Peninsula of particular ecological, evolutionary and biochemical interest. In this study, we present evidence of a possible repression on the process of G. bermejoi speciation by climatic factors. We modelled the ecological niches of the three taxa considered here using a maximum entropy approach and employing a series of bioclimatic variables. Subsequently, we projected these models onto the geographical space of the Iberian Peninsula in the present age and at two past ages: the Last Glacial Maximum and the mid-Holocene period. Furthermore, we compared these niches using the statistical method devised by Warren to calculate their degree of overlap. We also evaluated the evolution of the bioclimatic habitat suitability at those sites were the soil favors the growth of these species. Both the maximum entropy model and the degree of overlap indicated that the ecological behavior of the hybrid differs notably from that of the parental species. During the Last Glacial Maximum, the two parental species appear to take refuge in the western coastal strip of the Peninsula, a region in which there are virtually no sites where G. bermejoi could potentially be found. However, in the mid-Holocene period the suitability of G. bermejoi to sites with favorable soils shifts from almost null to a strong adaptation, a clear change in this tendency. These results suggest that the ecological niches of hybrid allopolyploids can be considerably different to those of their parental species, which may have evolutionary and ecologically relevant consequences. The data obtained indicate that certain bioclimatic variables may possibly repress the processes by which new species are formed. The difference in the ecological niche of G. bermejoi with respect to its parental species prevented it from prospering during the Last Glacial Maximum. However, the climatic change in the mid-Holocene period released this block and as such, it permitted the new species to establish itself. Accordingly, we favor a recent origin of the current populations of G. bermejoi.
[Mh] Termos MeSH primário: Caryophyllaceae/classificação
Clima
[Mh] Termos MeSH secundário: Evolução Biológica
Ecossistema
Modelos Biológicos
Solo
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180117
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190536


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[PMID]:28936557
[Au] Autor:Turmagambetova AS; Alexyuk PG; Bogoyavlenskiy AP; Zaitseva IA; Omirtaeva ES; Alexyuk MS; Sokolova NS; Berezin VE
[Ad] Endereço:Institute of Microbiology and Virology, 103, Bogenbai Batyr Street, Almaty, 050010, Kazakhstan. aichyck@mail.ru.
[Ti] Título:Adjuvant activity of saponins from Kazakhstani plants on the immune responses to subunit influenza vaccine.
[So] Source:Arch Virol;162(12):3817-3826, 2017 Dec.
[Is] ISSN:1432-8798
[Cp] País de publicação:Austria
[La] Idioma:eng
[Ab] Resumo:In recent years, there have been a number of reports on the successful use of immunostimulatory complexes with saponins and viral glycoproteins as veterinary vaccines and in clinical trials for human medicine. The saponins Algiox, Sapanox and Pangisan were isolated and purified by HPLC from Allochrusa gypsophiloides, Saponaria officinalis and Gypsophila paniculata plants in Kazakhstan and they proved to have low toxicity in experiments with mice, chickens and chicken embryos. Algiox, Sapanox and Pangisan can be used to create immunostimulatory complexes (ISCOMs) similar to saponin-Quil-A-containing ISCOMs both in structure and in immunostimulatory efficiency. The adjuvant effect of the obtained saponins was studied by subcutaneous injection of mice with ISCOMs containing these herbal saponins and lipids and glycoproteins of H7N1 influenza virus. Sapanox, Pangisan and Algiox from Kazakhstani plants of the family Caryophyllaceae could be considered an additional source of highly effective adjuvants not only for veterinary vaccines but also for human medicine.
[Mh] Termos MeSH primário: Adjuvantes Imunológicos/administração & dosagem
Caryophyllaceae/química
Vacinas contra Influenza/imunologia
Compostos Fitoquímicos/administração & dosagem
Saponinas/administração & dosagem
[Mh] Termos MeSH secundário: Animais
Feminino
Vírus da Influenza A Subtipo H7N1/imunologia
Vacinas contra Influenza/administração & dosagem
Cazaquistão
Masculino
Camundongos Endogâmicos BALB C
Compostos Fitoquímicos/isolamento & purificação
Saponinas/isolamento & purificação
Vacinas de Subunidades/administração & dosagem
Vacinas de Subunidades/imunologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Adjuvants, Immunologic); 0 (Influenza Vaccines); 0 (Phytochemicals); 0 (Saponins); 0 (Vaccines, Subunit)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171113
[Lr] Data última revisão:
171113
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170923
[St] Status:MEDLINE
[do] DOI:10.1007/s00705-017-3560-5


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[PMID]:28719623
[Au] Autor:Li C; Shi X; Mohamad OA; Gao J; Xu X; Xie Y
[Ad] Endereço:Department of National Engineering Technology Research Center for Desert-Oasis Ecological Construction, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang, China.
[Ti] Título:Moderate irrigation intervals facilitate establishment of two desert shrubs in the Taklimakan Desert Highway Shelterbelt in China.
[So] Source:PLoS One;12(7):e0180875, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Water influences various physiological and ecological processes of plants in different ecosystems, especially in desert ecosystems. The purpose of this study is to investigate the response of physiological and morphological acclimation of two shrubs Haloxylon ammodendron and Calligonum mongolicunl to variations in irrigation intervals. METHODOLOGY/PRINCIPAL FINDINGS: The irrigation frequency was set as 1-, 2-, 4-, 8- and 12-week intervals respectively from March to October during 2012-2014 to investigate the response of physiological and morphological acclimation of two desert shrubs Haloxylon ammodendron and Calligonum mongolicunl to variations in the irrigation system. The irrigation interval significantly affected the individual-scale carbon acquisition and biomass allocation pattern of both species. Under good water conditions (1- and 2-week intervals), carbon assimilation was significantly higher than other treatments; while, under water shortage conditions (8- and 12-week intervals), there was much defoliation; and under moderate irrigation intervals (4 weeks), the assimilative organs grew gently with almost no defoliation occurring. CONCLUSION/SIGNIFICANCE: Both studied species maintained similar ecophysiologically adaptive strategies, while C. mongolicunl was more sensitive to drought stress because of its shallow root system and preferential belowground allocation of resources. A moderate irrigation interval of 4 weeks was a suitable pattern for both plants since it not only saved water but also met the water demands of the plants.
[Mh] Termos MeSH primário: Irrigação Agrícola/métodos
Amaranthaceae/efeitos dos fármacos
Caryophyllaceae/efeitos dos fármacos
Clima Desértico
Água/farmacologia
[Mh] Termos MeSH secundário: Aclimatação
Amaranthaceae/crescimento & desenvolvimento
Amaranthaceae/metabolismo
Amaranthaceae/fisiologia
Biomassa
Caryophyllaceae/crescimento & desenvolvimento
Caryophyllaceae/fisiologia
China
Fotossíntese/efeitos dos fármacos
Folhas de Planta/efeitos dos fármacos
Folhas de Planta/crescimento & desenvolvimento
Folhas de Planta/metabolismo
Solo/química
Fatores de Tempo
Água/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil); 059QF0KO0R (Water)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170719
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0180875


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[PMID]:28433621
[Au] Autor:Dillenberger MS; Kadereit JW
[Ad] Endereço:Department of Botany & Plant Pathology, Oregon State University, Corvallis, OR 97331, USA. Electronic address: dillenbm@oregonstate.edu.
[Ti] Título:Simultaneous speciation in the European high mountain flowering plant genus Facchinia (Minuartia s.l., Caryophyllaceae) revealed by genotyping-by-sequencing.
[So] Source:Mol Phylogenet Evol;112:23-35, 2017 Jul.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Understanding the relative importance of different mechanisms of speciation in a given lineage requires fully resolved interspecific relationships. Using Facchinia, a genus of seven species centred in the European Alps, we explore whether the polytomy found by Sanger sequencing analyses of standard nuclear (ITS) and plastid markers (trnQ-rps16) is a hard or soft polytomy by substantially increasing the amount of DNA sequence data, generated by genotyping-by-sequencing. In comparison to 142 phylogenetically informative sites in the Sanger sequences the GBS sequences yielded 3363 phylogenetically informative sites after exclusion of apparently oversaturated SNPs. Maximum parsimony, maximum likelihood, NeighborNet, SVDquartets and Astral-II analyses all resulted in phylogenetic trees (and networks) in which interspecific relationships were largely unresolved. After excluding incomplete lineage sorting, hybridisation and oversaturation of characters as possible causes for lack of phylogenetic resolution, we conclude that the polytomy obtained most likely represents a hard polytomy. We hypothesize that diversification of Facchinia is best interpreted as the result of multiple simultaneous vicariance in response to climatic changes during the Early Quaternary.
[Mh] Termos MeSH primário: Caryophyllaceae/genética
DNA de Plantas
Especiação Genética
[Mh] Termos MeSH secundário: Caryophyllaceae/classificação
Evolução Molecular
Genótipo
Hibridização Genética
Filogenia
Plastídeos/genética
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Plant)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171018
[Lr] Data última revisão:
171018
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170424
[St] Status:MEDLINE


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[PMID]:28432923
[Au] Autor:Pertuit D; Larshini M; Brahim MA; Markouk M; Mitaine-Offer AC; Paululat T; Delemasure S; Dutartre P; Lacaille-Dubois MA
[Ad] Endereço:Laboratoire de Pharmacognosie, PEPITE EA 4267, FDE/UFC, UFR des Sciences de Santé, Université de Bourgogne Franche-Comté, 7, Bd Jeanne d'Arc, BP 87900, 21079, Dijon Cedex, France.
[Ti] Título:Triterpenoid saponins from the roots of Spergularia marginata.
[So] Source:Phytochemistry;139:81-87, 2017 Jul.
[Is] ISSN:1873-3700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Phytochemical investigations of the roots of Spergularia marginata had led to the isolation of four previously undescribed triterpenoid saponins, a known one and one spinasterol glycoside. Their structures were established by extensive NMR and mass spectroscopic techniques as 3-O-ß-D-glucuronopyranosyl echinocystic acid 28-O-α-L-arabinopyranosyl-(1 â†’ 2)-α-L-rhamnopyranosyl-(1 â†’ 3)-ß-D-xylopyranosyl-(1 â†’ 4)-α-L-rhamnopyranosyl-(1 â†’ 2)-α-L- arabinopyranosyl ester, 3-O-ß-D-glucopyranosyl-(1 â†’ 3)-ß-D-glucuronopyranosyl echinocystic acid 28-O-α-L-arabinopyranosyl-(1 â†’ 2)-α-L-rhamnopyranosyl-(1 â†’ 3)-ß-D-xylopyranosyl-(1 â†’ 4)-α-L-rhamnopyranosyl-(1 â†’ 2)- α-L-arabinopyranosyl ester, 3-O-ß-D-glucopyranosyl-(1 â†’ 4)-3-O-sulfate-ß-D-glucuronopyranosyl echinocystic acid 28-O-α-L-arabinopyranosyl-(1 â†’ 2)-α-L-rhamnopyranosyl-(1 â†’ 3)-ß-D-xylopyranosyl-(1 â†’ 4)-α-L-rhamnopyranosyl-(1 â†’ 2)-α-L-arabinopyranosyl ester, and 3-O-ß-D-glucopyranosyl-(1 â†’ 4)-ß-D-glucuronopyranosyl 21-O-acetyl acacic acid. Their cytotoxicity was evaluated against two human cancer cell lines SW480 and MCF-7. The most active compound showed a cytotoxicity with IC 14.2 ± 0.8 µM (SW480), and 18.7 ± 0.8 µM (MCF-7), respectively.
[Mh] Termos MeSH primário: Caryophyllaceae/química
Raízes de Plantas/química
Saponinas/isolamento & purificação
Triterpenos/isolamento & purificação
[Mh] Termos MeSH secundário: Seres Humanos
Estrutura Molecular
Marrocos
Ressonância Magnética Nuclear Biomolecular
Ácido Oleanólico/análogos & derivados
Ácido Oleanólico/química
Ácido Oleanólico/isolamento & purificação
Saponinas/química
Saponinas/farmacologia
Triterpenos/química
Triterpenos/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Saponins); 0 (Triterpenes); 6SMK8R7TGJ (Oleanolic Acid); L4DUW10YOF (echinocystic acid)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170804
[Lr] Data última revisão:
170804
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170423
[St] Status:MEDLINE


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[PMID]:28241056
[Au] Autor:Kang JS; Lee BY; Kwak M
[Ad] Endereço:Plant Resources Division, National Institute of Biological Resources, Incheon, Republic of Korea.
[Ti] Título:The complete chloroplast genome sequences of Lychnis wilfordii and Silene capitata and comparative analyses with other Caryophyllaceae genomes.
[So] Source:PLoS One;12(2):e0172924, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The complete chloroplast genomes of Lychnis wilfordii and Silene capitata were determined and compared with ten previously reported Caryophyllaceae chloroplast genomes. The chloroplast genome sequences of L. wilfordii and S. capitata contain 152,320 bp and 150,224 bp, respectively. The gene contents and orders among 12 Caryophyllaceae species are consistent, but several microstructural changes have occurred. Expansion of the inverted repeat (IR) regions at the large single copy (LSC)/IRb and small single copy (SSC)/IR boundaries led to partial or entire gene duplications. Additionally, rearrangements of the LSC region were caused by gene inversions and/or transpositions. The 18 kb inversions, which occurred three times in different lineages of tribe Sileneae, were thought to be facilitated by the intermolecular duplicated sequences. Sequence analyses of the L. wilfordii and S. capitata genomes revealed 39 and 43 repeats, respectively, including forward, palindromic, and reverse repeats. In addition, a total of 67 and 56 simple sequence repeats were discovered in the L. wilfordii and S. capitata chloroplast genomes, respectively. Finally, we constructed phylogenetic trees of the 12 Caryophyllaceae species and two Amaranthaceae species based on 73 protein-coding genes using both maximum parsimony and likelihood methods.
[Mh] Termos MeSH primário: Caryophyllaceae/genética
DNA de Cloroplastos/genética
Genoma de Cloroplastos
Lychnis/genética
Silene/genética
[Mh] Termos MeSH secundário: DNA de Plantas
Evolução Molecular
Duplicação Gênica
Rearranjo Gênico
Genoma de Planta
Funções Verossimilhança
Repetições de Microssatélites/genética
Filogenia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Chloroplast); 0 (DNA, Plant)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170907
[Lr] Data última revisão:
170907
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170228
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0172924


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[PMID]:27902296
[Au] Autor:Huang MJ; Rao MP; Salam N; Xiao M; Huang HQ; Li WJ
[Ad] Endereço:2​Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China 1​College of Landscape Architecture, Southwest Forestry University, Kunming 650224, PR China.
[Ti] Título:Allostreptomyces psammosilenae gen. nov., sp. nov., an endophytic actinobacterium isolated from the roots of Psammosilene tunicoides and emended description of the family Streptomycetaceae [Waksman and Henrici (1943)AL] emend. Rainey et al. 1997, emend. Kim et al. 2003, emend. Zhi et al. 2009.
[So] Source:Int J Syst Evol Microbiol;67(2):288-293, 2017 Feb.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A Gram-stain-positive actinobacterium, designated strain YIM DR4008T, was isolated from the root sample of Psammosilene tunicoides collected from Lijiang, Yunnan, China. Strain YIM DR4008T could grow at temperatures ranging from 10 to 50 °C (optimum 28-30 °C), at pH 5.0-11.0 (optimum pH 7.0) and in the presence of up to 4 % (w/v) NaCl. Sequence analysis of the 16S ribosomal RNA gene revealed that strain YIM DR4008T shared highest similarity (95.0 %) with Streptomyces griseoplanus NBRC 12779T and <95 % similarity with other known members of the genera Streptomyces, Kitasatospora and Streptacidiphilus. The diagnostic cell-wall diamino acid of strain YIM DR4008T was found to be ll-diaminopimelic acid. The whole-cell hydrolysates contained a major amount of galactose and mannose along with a small proportion of fucose, glucose, rhamnose and ribose. The polar lipids consisted of diphosphatidylglycerol, phosphatidylinositol mannosides and three unidentified phospholipids. The respiratory menaquinones were MK-9(H6) and MK-9(H8), while the major cellular fatty acids (>10 %) were anteiso-C15 : 0, C16 : 0, iso-C16 : 0, iso-C15 : 0 and anteiso-C17 : 0. The genomic DNA G+C content was determined to be 75.3 mol%. Based on the phenotypic, chemotaxonomic and molecular characteristics, strain YIM DR4008T is proposed to be recognized as a novel species of a new genus in the family Streptomycetaceae, with the name Allostreptomyces psammosilenae gen. nov., sp. nov. The type strain of the type species is YIM DR4008T (=DSM 42178T=CGMCC 4.7247T). An emended description of the family Streptomycetaceae is also provided.
[Mh] Termos MeSH primário: Caryophyllaceae/microbiologia
Filogenia
Raízes de Plantas/microbiologia
Streptomycetaceae/classificação
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
China
DNA Bacteriano/genética
Ácido Diaminopimélico/química
Ácidos Graxos/química
Fosfolipídeos/química
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
Streptomycetaceae/genética
Streptomycetaceae/isolamento & purificação
Vitamina K 2/análogos & derivados
Vitamina K 2/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Phospholipids); 0 (RNA, Ribosomal, 16S); 11032-49-8 (Vitamin K 2); 523-39-7 (menaquinone 9); 583-93-7 (Diaminopimelic Acid)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170818
[Lr] Data última revisão:
170818
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161201
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.001617


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[PMID]:27757688
[Au] Autor:Pintó-Marijuan M; Cotado A; Fleta-Soriano E; Munné-Bosch S
[Ad] Endereço:Departament de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Avinguda Diagonal 643, 08028, Barcelona, Spain. marta.pinto.marijuan@gmail.com.
[Ti] Título:Drought stress memory in the photosynthetic mechanisms of an invasive CAM species, Aptenia cordifolia.
[So] Source:Photosynth Res;131(3):241-253, 2017 Mar.
[Is] ISSN:1573-5079
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Plants are known for their high capacity to acclimatise to fluctuating environmental conditions. A wide range of environmental conditions can lead to suboptimal physiological efficiency. However, recent studies have shown that plants can withstand repeated periods of stress. To find out how they do it, we studied photosynthetic adjustments to repeated water stress in Aptenia cordifolia: a facultative, invasive CAM species. Plants were subjected to three cycles of water deficit, and photosynthetic parameters and chloroplast antioxidants were quantified to gain an understanding of the mechanisms by which they cope with repeated stress periods. Significant modification of the photosystems' antenna and reaction centres was observed in plants subjected to previous water stress cycles, and this led to higher PSII efficiency than in plants challenged with drought for the first time. These findings underline the biological significance of stress memory and show how plants can adjust their photosynthetic apparatus to fluctuating environmental conditions and thus optimise photosynthesis and photoprotection under drought conditions.
[Mh] Termos MeSH primário: Caryophyllaceae/fisiologia
Secas
Espécies Introduzidas
Fotossíntese
Estresse Fisiológico
[Mh] Termos MeSH secundário: Caryophyllaceae/metabolismo
Clorofila/metabolismo
Fluorescência
Pigmentos Biológicos/metabolismo
Tocoferóis/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Pigments, Biological); 1406-65-1 (Chlorophyll); R0ZB2556P8 (Tocopherols)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171121
[Lr] Data última revisão:
171121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161021
[St] Status:MEDLINE
[do] DOI:10.1007/s11120-016-0313-3


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[PMID]:27714464
[Au] Autor:Bertel C; Schönswetter P; Frajman B; Holzinger A; Neuner G
[Ad] Endereço:Institute of Botany, University of Innsbruck, Innsbruck, Austria. clara.bertel@uibk.ac.at.
[Ti] Título:Leaf anatomy of two reciprocally non-monophyletic mountain plants (Heliosperma spp.): does heritable adaptation to divergent growing sites accompany the onset of speciation?
[So] Source:Protoplasma;254(3):1411-1420, 2017 May.
[Is] ISSN:1615-6102
[Cp] País de publicação:Austria
[La] Idioma:eng
[Ab] Resumo:Evolution is driven by natural selection, favouring individuals adapted in phenotypic traits to the environmental conditions at their growing site. To shed light on ecological and (epi-) genetically based differentiation between Heliosperma pusillum and Heliosperma veselskyi, two reciprocally non-monophyletic, but morphologically and ecologically divergent species from the south-eastern Alps, we studied various leaf anatomical traits and investigated chloroplast ultrastructure in leaves of the two species grown either in their natural habitat or in a common garden. The alpine H. pusillum occurs in open, wet rock habitats, whereas its close relative H. veselskyi is restricted to dry, shady habitats below overhanging rocks in the montane belt. H. pusillum exhibited higher thickness of leaves and palisade layers as adjustments and/or adaptations to higher irradiance and a higher stomatal area index reflecting better water availability. Traits were adjusted plastically, but differed between species grown in a common garden, suggesting that the differentiation between the two species is not solely based on phenotypic plasticity but also has a genetic basis. Our study thus supports the hypothesis that differentiation between the highly interfertile species is likely driven by natural selection.
[Mh] Termos MeSH primário: Aclimatação/fisiologia
Caryophyllaceae/anatomia & histologia
Cloroplastos/ultraestrutura
Folhas de Planta/anatomia & histologia
[Mh] Termos MeSH secundário: Caryophyllaceae/genética
Ecossistema
Microscopia Eletrônica de Transmissão
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170505
[Lr] Data última revisão:
170505
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161008
[St] Status:MEDLINE
[do] DOI:10.1007/s00709-016-1032-5


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[PMID]:27594508
[Au] Autor:He J; Lin L; Ma Q; Liao M; Wang X; Lai Y; Liang D; Xia H; Tang Y; Wang J; Wang L
[Ad] Endereço:a College of Horticulture , Sichuan Agricultural University , Chengdu, Sichuan , China.
[Ti] Título:Uniconazole (S-3307) strengthens the growth and cadmium accumulation of accumulator plant Malachium aquaticum.
[So] Source:Int J Phytoremediation;19(4):348-352, 2017 Apr 03.
[Is] ISSN:1549-7879
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The effects of uniconazole (S-3307) application on the growth and cadmium (Cd) accumulation of accumulator plant Malachium aquaticum (L.) Fries. were studied through a pot experiment. The application of S-3307 increased the biomass and photosynthetic pigment content of M. aquaticum in Cd-contaminated soil, and also improved the superoxide dismutase (SOD) and peroxidase (POD) activities in M. aquaticum. Application of S-3307 increased Cd content in shoots and decreased Cd content in roots of M. aquaticum, but the translocation factor (TF) of M. aquaticum increased with the increase of S-3307 concentration. For phytoextraction, the application of S-3307 increased Cd extractions by roots, shoots and whole plants of M. aquaticum, and the maxima were obtained at 75 mg L S-3307, which increased by 22.07%, 37.79% and 29.07%, respectively, compared with their respective controls. Therefore, S-3307 can be used for enhancing the Cd extraction ability of M. aquaticum, and 75 mg L S-3307 was the optimal dose.
[Mh] Termos MeSH primário: Cádmio/metabolismo
Caryophyllaceae/efeitos dos fármacos
Caryophyllaceae/metabolismo
Reguladores de Crescimento de Planta/farmacologia
Poluentes do Solo/metabolismo
Triazóis/farmacologia
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Relação Dose-Resposta a Droga
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Growth Regulators); 0 (Soil Pollutants); 0 (Triazoles); 00BH33GNGH (Cadmium); R4ATA06H50 (uniconazole)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160906
[St] Status:MEDLINE
[do] DOI:10.1080/15226514.2016.1225287



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