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Pesquisa : Rhizophoraceae [Palavras]
Referências encontradas : 772 [refinar]
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[PMID]:29300478
[Au] Autor:Li R; Sun H; Wang S; Wang Y; Yu K
[Ad] Endereço:School of Marine Sciences, Guangxi University , Nanning 530004, P. R. China.
[Ti] Título:Retention of CdS/ZnS Quantum Dots (QDs) on the Root Epidermis of Woody Plant and Its Implications by Benzo[a]pyrene: Evidence from the in Situ Synchronous Nanosecond Time-Resolved Fluorescence Spectra Method.
[So] Source:J Agric Food Chem;66(4):814-821, 2018 Jan 31.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The retention of CdS/ZnS QDs on the epidermis has been confirmed to be one of the core procedures during the root uptake process. However, the retention mechanisms of QDs on the epidermis of woody plant were poorly understood for lacking of an appropriate QD quantitative method. In this study, a novel method for in situ determination of CdS/ZnS QDs retained on the root epidermis was established using synchronous nanosecond time-resolved fluorescence spectroscopy. No correlations between K values of oleylamine-CdS/ZnS QDs retained on the epidermal tissues and the surface/bulk composition of mangrove root were observed (p > 0.05) due to the existence of endocytosis mechanisms during the QD uptake processes. Moreover, the difference of the CdS/ZnS QDs in water and further translocated to xylem/phloem of root rather than the combination with cell wall/membranes was the predominant reason that caused the K values to follow the sequence of PEG-COOH-CdS/ZnS QDs < PEG-NH -CdS/ZnS QDs ≪ oleylamine-CdS/ZnS QDs.
[Mh] Termos MeSH primário: Benzo(a)pireno
Compostos de Cádmio/análise
Raízes de Plantas/química
Pontos Quânticos/análise
Espectrometria de Fluorescência/métodos
Sulfetos/análise
Compostos de Zinco/análise
[Mh] Termos MeSH secundário: Avicennia
Compostos de Cádmio/metabolismo
Endocitose
Epiderme/química
Epiderme/metabolismo
Floema/metabolismo
Raízes de Plantas/metabolismo
Pontos Quânticos/metabolismo
Rhizophoraceae
Sulfetos/metabolismo
Água/química
Xilema/metabolismo
Compostos de Zinco/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cadmium Compounds); 0 (Sulfides); 0 (Zinc Compounds); 057EZR4Z7Q (cadmium sulfide); 059QF0KO0R (Water); 3417WMA06D (Benzo(a)pyrene); KPS085631O (zinc sulfide)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180105
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b04258


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[PMID]:29418068
[Au] Autor:Nithyamol KV; Bhattacharya D; Chakravarty S; Mallavadhani UV
[Ad] Endereço:Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
[Ti] Título:Isolation, Synthesis and AChE Inhibitory Potential of Some Novel Cinnamyl Esters of Taraxerol, the Major Metabolite of the Mangrove Bruguiera cylindrica.
[So] Source:Chem Biodivers;, 2018 Feb 08.
[Is] ISSN:1612-1880
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Systematic chemical screening of the leaves ofBruguiera cylindrica, the tree mangrove of Rhizophoraceae family, afforded five single and purecompounds. Thestructures of the isolated compounds were established by their spectroscopic data astaraxerol (1), 3ß-(E)-coumaroyltaraxerol (2), 3ß-(Z)-coumaroyltaraxerol (3),ß-sitosterol (4) and eicosanol (5).In view of significant accumulation and interesting biological activities, taraxerol (1) was chemically transformed to synthesize a series of ten cinnamyl esters in very good to excellent yields. The synthesized analogues along with the parent compound were evaluated for their AChE inhibitory potential, BBB permeability and cytotoxicity against Neuro 2A cell line. Among the tested samples, compound 9 showed promising AChE inhibition with significantly low IC50 values, low cytotoxicity and high BBB permeability. Hence, compound 9 can be considered as a lead molecule for further development as potent AChE inhibitor. This article is protected by copyright. All rights reserved.
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180208
[Lr] Data última revisão:
180208
[St] Status:Publisher
[do] DOI:10.1002/cbdv.201800008


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[PMID]:28895524
[Au] Autor:Liu J; Li F; Gao CH; Han Y; Hao H; Yi XX; Huang RM
[Ad] Endereço:1​Laboratory of Pathogenic Biology, Guangdong Medical University, Zhanjiang 524023, PR China.
[Ti] Título:Nocardioides kandeliae sp. nov., an endophytic actinomycete isolated from leaves of Kandelia candel.
[So] Source:Int J Syst Evol Microbiol;67(10):3888-3893, 2017 Oct.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A Gram-stain-positive, aerobic, non-spore-forming, atrichous and short rod-shaped endophytic actinomycete, designated strain BGMRC 2075 , was isolated from the leaves of Kandelia candel, and was subjected to polyphasic characterization to unravel its taxonomic position. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain BGMRC 2075 belongs to the genus Nocardioides ,showing the highest 16S rRNA gene sequence similarity to Nocardioides aestuarii JC2056 (96.1 %), Nocardioides agariphilus MSL-28 (95.1 %) andNocardioides islandiensis MSL-26 (95.1 %). The predominant cellular fatty acids of strain BGMRC 2075 were iso-C16 : 0, C17 : 1ω8c and C17 : 0. The major menaquinone was MK-8(H4). The diagnostic diamino acid in the cell-wall peptidoglycan was ll-2,6-diaminopimelic acid. The predominant cell-wall sugars were composed of ribose and glucose. The polar lipid pattern contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylcholine, five unknown phospholipids, one phospholipid of unknown structure containing glucosamine, and an unknown polar lipid. The DNA G+C content was 70.8 mol%. All these data support the allocation of the novel strain to the genus Nocardioides. The results of physiological and biochemical characterization allow the phenotypic differentiation of strain BGMRC 2075 from N. aestuarii JC2056 , N. agariphilus MSL-28 and N. islandiensis MSL-26 . Strain BGMRC 2075 represents a novel species of the genus Nocardioides, for which we propose the name Nocardioides kandeliae sp. nov. The type strain is BGMRC 2075 (=KCTC 39886 =DSM 104480 ).
[Mh] Termos MeSH primário: Actinomycetales/classificação
Filogenia
Folhas de Planta/microbiologia
Rhizophoraceae/microbiologia
[Mh] Termos MeSH secundário: Actinomycetales/genética
Actinomycetales/isolamento & purificação
Técnicas de Tipagem Bacteriana
Composição de Bases
China
DNA Bacteriano/genética
Ácido Diaminopimélico/química
Ácidos Graxos/química
Peptidoglicano/química
Fosfolipídeos/química
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
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 (Peptidoglycan); 0 (Phospholipids); 0 (RNA, Ribosomal, 16S); 11032-49-8 (Vitamin K 2); 523-38-6 (vitamin MK 8); 583-93-7 (Diaminopimelic Acid)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170913
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002218


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[PMID]:28666019
[Au] Autor:Reynolds CL; Er OAH; Winder L; Blanchon DJ
[Ad] Endereço:Biodiversity Management and Animal Welfare Research Group, Environmental and Animal Sciences, Unitec Institute of Technology, Auckland, New Zealand.
[Ti] Título:Distribution and community composition of lichens on mature mangroves (Avicennia marina subsp. australasica (Walp.) J.Everett) in New Zealand.
[So] Source:PLoS One;12(6):e0180525, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Mangrove forests of a single trees species, Avicennia marina subsp. australasica are widespread in the upper North Island of New Zealand, but there is little available information on the diversity of epiphytes such as lichens within them. A survey of 200 trees from 20 mangrove sites recorded a total of 106 lichen species from 45 genera. Two of these species are considered to be 'Threatened', five 'At Risk' and 27 'Data Deficient'. Multiple regression indicated that tree diameter (DBH) and mean annual rain days positively influenced site species richness. Multidimensional scaling showed that sites from the same geographical region generally formed distinct clusters. Redundancy analysis indicated that mean annual wet days, latitude and DBH measurably influenced species composition.
[Mh] Termos MeSH primário: Avicennia
Líquens/classificação
Rhizophoraceae
[Mh] Termos MeSH secundário: Ecossistema
Nova Zelândia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171006
[Lr] Data última revisão:
171006
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170701
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0180525


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[PMID]:28625729
[Au] Autor:Wang JF; Liang R; Liao SR; Yang B; Tu ZC; Lin XP; Wang BG; Liu Y
[Ad] Endereço:CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Experimental Marine Biology, Institu
[Ti] Título:Vaccinols J-S, ten new salicyloid derivatives from the marine mangrove-derived endophytic fungus Pestalotiopsis vaccinii.
[So] Source:Fitoterapia;120:164-170, 2017 Jul.
[Is] ISSN:1873-6971
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Ten new salicyloid derivatives, namely vaccinols J-S (1-10), along with five known compounds (11-15) were isolated from Pestalotiopsis vaccinii (cgmcc3.9199) endogenous with the mangrove plant Kandelia candel (L.) Druce (Rhizophoraceae). Their structures including absolute configurations were established on the basis of spectroscopic analysis, optical rotation, CD spectra, quantum ECD calculations. To the best of our knowledge, vaccinol J (1) is the first example of salicyloid derivatives containing 2-methylfuran moiety. All of the new compounds were tested for their anti-enterovirus 7l (EV71) and cytotoxic activities. Among them, vaccinol J (1) exhibited in vitro anti-EV71 with IC value of 30.7µM (IC 177.0µM for the positive control ribavirin).
[Mh] Termos MeSH primário: Rhizophoraceae/microbiologia
Salicilatos/farmacologia
Xylariales/química
[Mh] Termos MeSH secundário: Antivirais/isolamento & purificação
Antivirais/farmacologia
Linhagem Celular Tumoral
Enterovirus Humano A/efeitos dos fármacos
Seres Humanos
Estrutura Molecular
Salicilatos/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antiviral Agents); 0 (Salicylates)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170731
[Lr] Data última revisão:
170731
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170620
[St] Status:MEDLINE


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[PMID]:28594908
[Au] Autor:Thomas N; Lucas R; Bunting P; Hardy A; Rosenqvist A; Simard M
[Ad] Endereço:California Institute of Technology Jet Propulsion Laboratory, Pasadena, California, United States of America.
[Ti] Título:Distribution and drivers of global mangrove forest change, 1996-2010.
[So] Source:PLoS One;12(6):e0179302, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:For the period 1996-2010, we provide the first indication of the drivers behind mangrove land cover and land use change across the (pan-)tropics using time-series Japanese Earth Resources Satellite (JERS-1) Synthetic Aperture Radar (SAR) and Advanced Land Observing Satellite (ALOS) Phased Array-type L-band SAR (PALSAR) data. Multi-temporal radar mosaics were manually interpreted for evidence of loss and gain in forest extent and its associated driver. Mangrove loss as a consequence of human activities was observed across their entire range. Between 1996-2010 12% of the 1168 1°x1° radar mosaic tiles examined contained evidence of mangrove loss, as a consequence of anthropogenic degradation, with this increasing to 38% when combined with evidence of anthropogenic activity prior to 1996. The greatest proportion of loss was observed in Southeast Asia, whereby approximately 50% of the tiles in the region contained evidence of mangrove loss, corresponding to 18.4% of the global mangrove forest tiles. Southeast Asia contained the greatest proportion (33.8%) of global mangrove forest. The primary driver of anthropogenic mangrove loss was found to be the conversion of mangrove to aquaculture/agriculture, although substantial advance of mangroves was also evident in many regions.
[Mh] Termos MeSH primário: Florestas
Internacionalidade
Rhizophoraceae/fisiologia
[Mh] Termos MeSH secundário: Aquicultura
Guiana Francesa
Processamento de Imagem Assistida por Computador
Indonésia
Clima Tropical
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170918
[Lr] Data última revisão:
170918
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170609
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0179302


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[PMID]:28586721
[Au] Autor:May Zin WW; Buttachon S; Dethoup T; Pereira JA; Gales L; Inácio Â; Costa PM; Lee M; Sekeroglu N; Silva AMS; Pinto MMM; Kijjoa A
[Ad] Endereço:ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Lexões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal. Elect
[Ti] Título:Antibacterial and antibiofilm activities of the metabolites isolated from the culture of the mangrove-derived endophytic fungus Eurotium chevalieri KUFA 0006.
[So] Source:Phytochemistry;141:86-97, 2017 Sep.
[Is] ISSN:1873-3700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Five previously undescribed metabolites, including acetylquestinol, two prenylated indole 3-carbaldehyde derivatives, an anthranilic acid derivative and an isochromone derivative, were isolated, in addition to eleven known compounds: palmitic acid, ergosterol 5,8-endoperoxide, emodin, physcion, questin, questinol, (11S, 14R)-cyclo(tryptophylvalyl), preechinulin, neoechinulin E, echinulin and eurocristatine, from the culture of the endophytic fungus Eurotium chevalieri KUFA 0006. The structures of the previously undescribed compounds were established based on an extensive 1D and 2D NMR spectral analysis as well as HRMS and IR data. In case of 2-(2, 2-dimethylcyclopropyl)-1H-indole-3-carbaldehyde and 6, 8-dihydroxy-3-(2S-hydroxypropyl)-7-methylisochromone, the absolute configurations of their stereogenic carbons were established based on comparison of their experimental and calculated ECD spectra. All the compounds, except for palmitic acid and ergosterol 5, 8-endoperoxide, were evaluated for their antibacterial and antibiofilm activities against two Gram-positive and two Gram-negative bacteria, as well as multidrug-resistant isolates from the environment. Emodin not only exhibited moderate antibacterial activity against the Gram-positive bacteria but also showed strong synergistic association with oxacillin against MRSA Staphylococcus aureus.
[Mh] Termos MeSH primário: Antibacterianos/química
Biofilmes/efeitos dos fármacos
Eurotium/química
[Mh] Termos MeSH secundário: Antraquinonas/química
Antraquinonas/isolamento & purificação
Antibacterianos/isolamento & purificação
Cromonas/química
Cromonas/isolamento & purificação
Emodina/química
Emodina/isolamento & purificação
Indóis/química
Indóis/isolamento & purificação
Staphylococcus aureus Resistente à Meticilina/efeitos dos fármacos
Testes de Sensibilidade Microbiana
Estrutura Molecular
Rhizophoraceae/microbiologia
ortoaminobenzoatos/química
ortoaminobenzoatos/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthraquinones); 0 (Anti-Bacterial Agents); 0 (Chromones); 0 (Indoles); 0 (ortho-Aminobenzoates); 0YS975XI6W (anthranilic acid); 7FN04C32UO (indole-3-carbaldehyde); KA46RNI6HN (Emodin)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170721
[Lr] Data última revisão:
170721
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170607
[St] Status:MEDLINE


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[PMID]:28559911
[Au] Autor:Guo W; Wu H; Zhang Z; Yang C; Hu L; Shi X; Jian S; Shi S; Huang Y
[Ad] Endereço:State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen UniversityGuangzhou, China.
[Ti] Título:Comparative Analysis of Transcriptomes in Rhizophoraceae Provides Insights into the Origin and Adaptive Evolution of Mangrove Plants in Intertidal Environments.
[So] Source:Front Plant Sci;8:795, 2017.
[Is] ISSN:1664-462X
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Mangroves are woody plants that grow at the interface between land and sea in tropical and subtropical latitudes, where they exist in conditions of high salinity, extreme tides, strong winds, high temperatures, and muddy, anaerobic soils. Rhizophoraceae is a key mangrove family, with highly developed morphological and physiological adaptations to extreme conditions. It is an ideal system for the study of the origin and adaptive evolution of mangrove plants. In this study, we characterized and comprehensively compared the transcriptomes of four mangrove species, from all four mangrove genera, as well as their closest terrestrial relative in Rhizophoraceae, using RNA-Seq. We obtained 41,936-48,845 unigenes with N50 values of 982-1,185 bp and 61.42-69.48% annotated for the five species in Rhizophoraceae. Orthology annotations of Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, and Clusters of Orthologous Groups revealed overall similarities in the transcriptome profiles among the five species, whereas enrichment analysis identified remarkable genomic characteristics that are conserved across the four mangrove species but differ from their terrestrial relative. Based on 1,816 identified orthologs, phylogeny analysis and divergence time estimation revealed a single origin for mangrove species in Rhizophoraceae, which diverged from the terrestrial lineage ~56.4 million years ago (Mya), suggesting that the transgression during the Paleocene-Eocene Thermal Maximum may have been responsible for the entry of the mangrove lineage of Rhizophoraceae into intertidal environments. Evidence showed that the ancestor of Rhizophoraceae may have experienced a whole genome duplication event ~74.6 Mya, which may have increased the adaptability and survival chances of Rhizophoraceae during and following the Cretaceous-Tertiary extinction. The analysis of positive selection identified 10 positively selected genes from the ancestor branch of Rhizophoraceae mangroves, which were mainly associated with stress response, embryo development, and regulation of gene expression. Positive selection of these genes may be crucial for increasing the capability of stress tolerance (i.e., defense against salt and oxidative stress) and development of adaptive traits (i.e., vivipary) of Rhizophoraceae mangroves, and thus plays an important role in their adaptation to the stressful intertidal environments.
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170816
[Lr] Data última revisão:
170816
[St] Status:PubMed-not-MEDLINE
[do] DOI:10.3389/fpls.2017.00795


  9 / 772 MEDLINE  
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[PMID]:28494358
[Au] Autor:Rowen DJ; Templeman MA; Kingsford MJ
[Ad] Endereço:College of Marine & Environmental Sciences, James Cook University, Townsville, QLD 4811, Australia.
[Ti] Título:Herbicide effects on the growth and photosynthetic efficiency of Cassiopea maremetens.
[So] Source:Chemosphere;182:143-148, 2017 Sep.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Herbicides from agricultural run-off have been measured in coastal systems of the Great Barrier Reef over many years. Non-target herbicide exposure, especially photosystem II herbicides has the potential to affect seagrasses and other marine species. The symbiotic benthic jellyfish Cassiopea maremetens is present in tropical/sub-tropical estuarine and marine environments. Jellyfish (n = 8 per treatment) were exposed to four separate concentrations of agricultural formulations of diuron or hexazinone to determine their sensitivity and potential for recovery to pulsed herbicide exposure. Jellyfish growth, symbiont photosynthetic activity and zooxanthellae density were analysed for herbicide-induced changes for 7 days followed by a 7 day recovery period. Both the jellyfish and endosymbiont were more sensitive to diuron than hexazinone. The 7-day EC for jellyfish growth was 0.35 µg L for Diuron and 17.5 µg L for Hexazinone respectively. Diuron exposure caused a significant decrease (p < 0.05) in jellyfish growth at 0.1 µg L , a level that is below the regional Great Barrier Reef guideline value. Jellyfish recovery was rapid with growth rates similar to control animals following removal from herbicide exposure. Both diuron and hexazinone caused significant decreases in photosynthetic efficiency (effective quantum yield) in all treatment concentrations (0.1 µg L and above) and this effect continued in the post-exposure period. As this species is frequently found in near-shore environments, they may be particularly vulnerable to herbicide run-off.
[Mh] Termos MeSH primário: Herbicidas/farmacologia
Rhizophoraceae/efeitos dos fármacos
Cifozoários/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Diurona/farmacologia
Fotossíntese/efeitos dos fármacos
Complexo de Proteína do Fotossistema II/efeitos dos fármacos
Rhizophoraceae/crescimento & desenvolvimento
Rhizophoraceae/fisiologia
Triazinas/farmacologia
Poluentes Químicos da Água/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Herbicides); 0 (Photosystem II Protein Complex); 0 (Triazines); 0 (Water Pollutants, Chemical); 9I3SDS92WY (Diuron); Y51727MR1Y (hexazinone)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170512
[St] Status:MEDLINE


  10 / 772 MEDLINE  
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[PMID]:28419920
[Au] Autor:Li R; Tan H; Zhu Y; Zhang Y
[Ad] Endereço:State Key Laboratory of Marine Environmental Science of China (Xiamen University), Xiamen 361005, China.
[Ti] Título:The retention and distribution of parent, alkylated, and N/O/S-containing polycyclic aromatic hydrocarbons on the epidermal tissue of mangrove seedlings.
[So] Source:Environ Pollut;226:135-142, 2017 Jul.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The polycyclic aromatic hydrocarbons (PAHs) located on the epidermal tissues showed distinctive toxic effects to root, while the retention and distribution of PAHs on mangrove seedlings poorly understood. Our results confirmed that the partition coefficients (K ) of the PAHs retained on the epidermal tissue of mangrove roots, such as Kandelia obovata, Avicennia marina and Aegiceras corniculatum, were much higher than the Poaceae plants roots, for example wheat and maize (Wild et al., 2005). Moreover, to the parent and alkyl PAHs, a well negative correlation was observed between the surface polarity of these three species of mangrove root and the K values (p < 0.05). To the N/O/S containing PAHs, these relationships were not obviously due to existing of the π-π, n-π interactions and hydrogen bonding between the N/O/S-containing PAHs and epidermal tissues. The PAHs retained on these three species of mangrove root epidermal tissues formed larger clusters than that of on Poaceae plants, such as wheat and maize (Wild et al., 2005) due to the limitation of the suberization of the root exodermis and endodermis. After exposure of 30 d, rhizo- and endophytic bacteria degraded parts of the N/O/S-containing PAHs to medium-lifetime fluorescence substances. To our knowledge, this is the first time to assess the retention of PAHs on the epidermal tissue of mangrove root, which will improve our understanding of the root uptake PAHs process.
[Mh] Termos MeSH primário: Avicennia/fisiologia
Hidrocarbonetos Aromáticos Policíclicos/toxicidade
Rhizophoraceae/fisiologia
Poluentes Químicos da Água/toxicidade
[Mh] Termos MeSH secundário: Alquilantes
Avicennia/efeitos dos fármacos
Raízes de Plantas/efeitos dos fármacos
Rhizophoraceae/efeitos dos fármacos
Plântulas/efeitos dos fármacos
Triticum
Poluentes Químicos da Água/análise
Zea mays
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Alkylating Agents); 0 (Polycyclic Aromatic Hydrocarbons); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170706
[Lr] Data última revisão:
170706
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170419
[St] Status:MEDLINE



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