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  1 / 92 MEDLINE  
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[PMID]:28854649
[Au] Autor:Susaeta A; Soto JR; Adams DC; Hulcr J
[Ad] Endereço:School of Forest Resources and Conservation, University of Florida, 136 Newins-Ziegler Hall, Gainesville, FL 32601.
[Ti] Título:Expected Timber-Based Economic Impacts of a Wood-Boring Beetle (Acanthotomicus Sp.) That Kills American Sweetgum.
[So] Source:J Econ Entomol;110(4):1942-1945, 2017 Aug 01.
[Is] ISSN:1938-291X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:American sweetgum trees (Liquidambar styraciflua L. [Altingiaceae]) in China are being killed by a newly discovered wood-boring beetle "sweetgum inscriber" (Acanthotomicus sp.). It has not been detected in the United States yet, but given the extent of trade with Asian countries, eventual arrival of this beetle is a serious concern. The American sweetgum is one of the main hardwood species in the southern United States, and provides several economic and ecological benefits to society. We present the first economic analysis of the potential damage from sweetgum inscriber (SI) to timber-based land values in the southern United States. We modeled economic impacts for a range of feasible SI arrival rates that reflect policy interventions: 1) no efforts to prevent arrival (scenario A, once every 14 and 25 yr), 2) partial prevention by complying with ISPM 15 standards (scenario B, once every 33 and 100 yr), and 3) total prevention of arrival (scenario C, zero transmission of SI). Our results indicated much lower land values for sweetgum plantations without the prevention on SI establishment (scenario A, US$1,843-US$4,383 ha-1) compared with partial prevention (scenario B, US$5,426-US$8,050 ha-1) and total eradication of SI (scenario C, US$9,825). Across the region, upper bound timber-based economic losses to plantation owners is US$151.9 million (US$4.6 million annually)-an estimate that can help inform policy decisions.
[Mh] Termos MeSH primário: Cadeia Alimentar
Agricultura Florestal/economia
Liquidambar/fisiologia
Gorgulhos/fisiologia
Madeira/economia
[Mh] Termos MeSH secundário: Animais
China
Espécies Introduzidas
Modelos Biológicos
Modelos Econômicos
Estados Unidos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:170901
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tox165


  2 / 92 MEDLINE  
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[PMID]:28475677
[Au] Autor:Gao L; Li Y; Xu Y; Hulcr J; Cognato AI; Wang JG; Ju RT
[Ad] Endereço:Institute of Plant Protection, Shanghai Academy of Landscape Architecture Science and Planning, Shanghai 200232, China.
[Ti] Título:Acanthotomicus sp. (Coleoptera: Curculionidae: Scolytinae), a New Destructive Insect Pest of North American Sweetgum Liquidambar styraciflua in China.
[So] Source:J Econ Entomol;110(4):1592-1595, 2017 Aug 01.
[Is] ISSN:1938-291X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A previously unknown bark beetle species, Acanthotomicus sp., has emerged as a lethal pest of American sweetgum (Liquidambar styraciflua) in China. Our survey of nursery records from around Shanghai suggests that American sweetgum have been under heavy attack since at least 2013, resulting in the death of > 10,000 trees. Mass attacks of the apparently sweetgum-specific Acanthotomicus sp. can be diagnosed by accumulation of resinous exudates on the trunk, wilted foliage, and eventual numerous exit holes of the new generation. A Chinese native sweetgum Liquidambar formosana can also be colonized by Acanthotomicus sp. This pest is of concern not only as a killer of sweetgum in the Chinese nursery trade but also as a potentially destructive invasive pest of sweetgum in North America. This discovery suggests that global preinvasion assessment of pests is warranted.
[Mh] Termos MeSH primário: Herbivoria
Liquidambar/fisiologia
Gorgulhos/fisiologia
[Mh] Termos MeSH secundário: Animais
China
Larva/anatomia & histologia
Larva/crescimento & desenvolvimento
Larva/fisiologia
Óvulo/crescimento & desenvolvimento
Pupa/anatomia & histologia
Pupa/crescimento & desenvolvimento
Pupa/fisiologia
Estados Unidos
Gorgulhos/anatomia & histologia
Gorgulhos/classificação
Gorgulhos/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:170506
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tox123


  3 / 92 MEDLINE  
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[PMID]:28115495
[Au] Autor:Wen CH; Chu FH
[Ad] Endereço:School of Forestry and Resource Conservation, National Taiwan University, Taiwan.
[Ti] Título:A R2R3-MYB Gene LfMYB113 is Responsible for Autumn Leaf Coloration in Formosan sweet gum (Liquidambar formosana Hance).
[So] Source:Plant Cell Physiol;58(3):508-521, 2017 Mar 01.
[Is] ISSN:1471-9053
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:The regulation of autumn leaf coloration in deciduous trees has long been an enigma. Due to the fact that different coloration phenotypes may be considered when planting, more understanding of the regulation mechanism is needed. In this study, a R2R3-MYB transcription factor gene LfMYB113 was identified from a subtropical deciduous tree species Formosan sweet gum (Liquidambar formosana Hance). The expression patterns of LfMYB113 in four selected phenotypes were different and were positively correlated with leaf anthocyanin content. In a 35S::LfMYB113 transgenic Nicotiana tabacum plant, both the early and late genes in the anthocyanin biosynthetic pathway were shown to be up-regulated. It was also shown that LfMYB113 can activate the promoter sequence of LfDFR1 and LfDFR2. Transient overexpression of LfMYB113 in Nicotiana benthamiana showed strong anthocyanin accumulation and pre-senescence; the latter was confirmed by up-regulation of senescence-associated genes. In addition, the activation of proLfSGR::YFP by LfMYB113 in transient experiments indicated that LfMYB113 may have a role in regulation of Chl degradation. To our knowledge, this is the first time a R2R3-MYB transcription factor has been functionally identified as one of the key regulators of autumn leaf coloration and autumn leaf senescence.
[Mh] Termos MeSH primário: Liquidambar/metabolismo
Pigmentação/fisiologia
Folhas de Planta/metabolismo
Proteínas de Plantas/metabolismo
[Mh] Termos MeSH secundário: Antocianinas/metabolismo
Regulação da Expressão Gênica de Plantas/genética
Regulação da Expressão Gênica de Plantas/fisiologia
Liquidambar/genética
Pigmentação/genética
Folhas de Planta/genética
Proteínas de Plantas/genética
Tabaco/genética
Tabaco/metabolismo
Fatores de Transcrição/genética
Fatores de Transcrição/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthocyanins); 0 (Plant Proteins); 0 (Transcription Factors)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170627
[Lr] Data última revisão:
170627
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170125
[St] Status:MEDLINE
[do] DOI:10.1093/pcp/pcw228


  4 / 92 MEDLINE  
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[PMID]:27960116
[Au] Autor:Feng Y; Liu S; Liu G; Yao J
[Ad] Endereço:College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
[Ti] Título:Facile and fast removal of oil through porous carbon spheres derived from the fruit of Liquidambar formosana.
[So] Source:Chemosphere;170:68-74, 2017 Mar.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Porous carbon spheres with a diameter of 1-2 cm were prepared via a simple carbonization of the fruit of Liquidambar formosana. After carbonization, the spherical structure and inner finger-like pores were maintained with high resistance to impact. Due to the porous structure and the hydrophobic nature, the carbonized fruit of Liquidambar formosana can float on the water surface and show a super-fast oil or organic solvent sorption ability (sorption saturation can be achieved within 1-2 min). Moreover, about 99% of adsorbed oil can be easily removed from spheres via organic solvent such as ethanol or hexane, which shows good recyclability of samples. In general, considering the low-cost and abundance of raw material collected from nature and the facile synthetic process (only by carbonization), the centimeter-sized porous spheres via the carbonization of fruit of Liquidambar formosana are very promising to be used for the application of oil or organic solvent spill cleanup.
[Mh] Termos MeSH primário: Biodegradação Ambiental
Carbono/química
Frutas/química
Liquidambar/química
Óleos/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Adsorção
Cinética
Porosidade
Reprodutibilidade dos Testes
Solventes
Propriedades de Superfície
Água/análise
Água/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Oils); 0 (Solvents); 0 (Water Pollutants, Chemical); 059QF0KO0R (Water); 7440-44-0 (Carbon)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161214
[St] Status:MEDLINE


  5 / 92 MEDLINE  
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[PMID]:27543951
[Au] Autor:Huang C; Jeuck B; Du J; Yong Q; Chang HM; Jameel H; Phillips R
[Ad] Endereço:Co-Innovation Center for Efficient Processing and Utilization of Forest Products, Nanjing Forestry University, Nanjing 210037, China; Department of Forestry Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA.
[Ti] Título:Novel process for the coproduction of xylo-oligosaccharides, fermentable sugars, and lignosulfonates from hardwood.
[So] Source:Bioresour Technol;219:600-607, 2016 Nov.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Many biorefineries have not been commercialized due to poor economic returns from final products. In this work, a novel process has been developed to coproduce valuable sugars, xylo-oligosaccharides, and lignosulfonates from hardwood. The modified process includes a mild autohydrolysis pretreatment, which enables for the recovery of the xylo-oligosaccharides in auto-hydrolysate. Following enzymatic hydrolysis, the residue is sulfomethylated to produce lignosulfonates. Recycling the sulfomethylation residues increased both the glucan recovery and lignosulfonate production. The glucose recovery was increased from 81.7% to 87.9%. Steady state simulation using 100g of hardwood produced 46.7g sugars, 5.9g xylo-oligosaccharides, and 25.7g lignosulfonates, which were significantly higher than that produced from the no-recycling process with 39.1g sugars, 5.9g xylo-oligosaccharides, and 15.0g lignosulfonates. The results indicate that this novel biorefinery process can improve the production of fermentable sugars and lignosulfonate from hardwood as compared to a conventional biorefinery process.
[Mh] Termos MeSH primário: Lignina/análogos & derivados
Oligossacarídeos/isolamento & purificação
Madeira/metabolismo
[Mh] Termos MeSH secundário: Carboidratos
Glucose
Hidrólise
Lignina/isolamento & purificação
Lignina/metabolismo
Liquidambar
Oligossacarídeos/metabolismo
Reciclagem
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carbohydrates); 0 (Oligosaccharides); 8062-15-5 (lignosulfuric acid); 9005-53-2 (Lignin); IY9XDZ35W2 (Glucose)
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170813
[Lr] Data última revisão:
170813
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160821
[St] Status:MEDLINE


  6 / 92 MEDLINE  
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[PMID]:27525864
[Au] Autor:Zhong YT; Wang XL; Xie QJ; Zhang YN
[Ad] Endereço:Gannan Medical University, Ganzhou, Jiangxi Province, China.
[Ti] Título:Effect of the extract from leaves of Liquidambar formosana Hance on S180 cells.
[So] Source:Genet Mol Res;15(3), 2016 Jul 25.
[Is] ISSN:1676-5680
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:We examined the effects of the extract from leaves of Liquidambar formosana Hance on S180 cells and screened for antitumor active sites in the plant. Solvent extraction was conducted to prepare extracts from the leaves of L. formosana Hance and conduct preliminary separation, an MTT assay to determine the effect of leaf extract on the proliferation of S180 cells, and inverted microscopy to observe the effect of chloroform extract on the morphology of S180 cells. Double-staining (Annexin V/propidium iodide) with flow cytometry was conducted to determine the effect of the chloroform extract on S180 cell apoptosis. At some concentrations, the different extracts from the leaves of L. formosana Hance dose-dependently inhibited the proliferation of S180 cells. Among all extracts, the chloroform extract showed the strongest inhibitory effect on S180 cell proliferation. The IC50 values for the chloroform extract, ethyl acetate extract, n-butanol extract, and water layer were 0.238, 0.471, 0.844, and 0.411 mg/mL, respectively. We observed cell shrinkage, volume reduction, and varying sizes by inverted microscopy. Additionally, with increasing drug concentration, the number of cells decreased and debris increased. The cells showed typical apoptotic morphological changes. The chloroform extract induced the apoptosis of S180 cells in a dose-dependent manner. Different extracts from the leaves of L. formosana Hance inhibited the proliferation of S180 cells, and the chloroform extract was the main antitumor component. This extract from the leaves of L. formosana Hance inhibited the proliferation of S180 cells in part by inducing apoptosis.
[Mh] Termos MeSH primário: Liquidambar/química
Extratos Vegetais/farmacologia
Sarcoma 180/tratamento farmacológico
[Mh] Termos MeSH secundário: Animais
Antineoplásicos/isolamento & purificação
Antineoplásicos/farmacologia
Apoptose/efeitos dos fármacos
Linhagem Celular Tumoral
Proliferação Celular/efeitos dos fármacos
Liquidambar/toxicidade
Camundongos
Extratos Vegetais/isolamento & purificação
Folhas de Planta/química
Sarcoma 180/patologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antineoplastic Agents); 0 (Plant Extracts)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170321
[Lr] Data última revisão:
170321
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160816
[St] Status:MEDLINE
[do] DOI:10.4238/gmr.15038795


  7 / 92 MEDLINE  
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[PMID]:27307210
[Au] Autor:Cocoletzi E; Angeles G; Ceccantini G; Patrón A; Ornelas JF
[Ad] Endereço:Red de Ecología Funcional, Instituto de Ecología, AC, Xalapa, Veracruz 91070 México.
[Ti] Título:Bidirectional anatomical effects in a mistletoe-host relationship: Psittacanthus schiedeanus mistletoe and its hosts Liquidambar styraciflua and Quercus germana.
[So] Source:Am J Bot;103(6):986-97, 2016 06.
[Is] ISSN:1537-2197
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:PREMISE OF THE STUDY: During the interactions between a parasitic plant and its host, the parasite affects its host morphologically, anatomically, and physiologically, yet there has been little focus on the effect of hosts on the parasite. Here, the functional interactions between the hemiparasitic mistletoe Psittacanthus schiedeanus and its hosts Liquidambar styraciflua and Quercus germana were interpreted based on the anatomical features of the vascular tissues. METHODS: Using standard techniques for light and transmission electron microscopy, we studied the effects of P. schiedeanus on the phloem anatomy of Liquidambar styraciflua and Quercus germana and vice versa. KEY RESULTS: The phloem of P. schiedeanus has larger sieve elements, companion cells, and sieve plate areas when it is parasitizing L. styraciflua than Q. germana; however, the parasite produces systemic effects on the phloem of its hosts, reducing the size of phloem in L. styraciflua but increasing it in Q. germana. Those seem to be the bidirectional effects. No direct connections between the secondary phloem of the parasite and that of its hosts were observed. Parenchymatic cells of L. styraciflua in contact with connective parenchyma cells of the parasite develop half-plasmodesmata, while those of Q. germana do not. CONCLUSIONS: The bidirectional effects between the parasite and its hosts comprise modifications in secondary phloem that are potentially affected by the phenology of its hosts, a combination of hormonal agents such as auxins, and the symplasmic or apoplasmic pathway for solutes import.
[Mh] Termos MeSH primário: Interações Hospedeiro-Parasita
Liquidambar/anatomia & histologia
Liquidambar/parasitologia
Erva-de-Passarinho/anatomia & histologia
Quercus/anatomia & histologia
Quercus/parasitologia
[Mh] Termos MeSH secundário: Liquidambar/citologia
Liquidambar/ultraestrutura
Floema/anatomia & histologia
Floema/citologia
Floema/ultraestrutura
Caules de Planta/anatomia & histologia
Caules de Planta/citologia
Quercus/citologia
Quercus/ultraestrutura
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1707
[Cu] Atualização por classe:171121
[Lr] Data última revisão:
171121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160617
[St] Status:MEDLINE
[do] DOI:10.3732/ajb.1600166


  8 / 92 MEDLINE  
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[PMID]:27259375
[Au] Autor:Tedore C; Johnsen S
[Ad] Endereço:Department of Biology, Duke University, Durham, NC 27708, USA cynthia.tedore@biol.lu.se.
[Ti] Título:Disentangling the visual cues used by a jumping spider to locate its microhabitat.
[So] Source:J Exp Biol;219(Pt 15):2396-401, 2016 Aug 01.
[Is] ISSN:1477-9145
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Many arthropod species have evolved to thrive only on the leaves of a particular species of plant, which they must be capable of finding in order to survive accidental displacement, developmental transitions or the changing of the seasons. A number of studies have tested whether such species select leaves to land or oviposit on based on their color, shape or size. Unfortunately, many studies did not control for correlates of these characters, such as the brightness of different colors, the areas of different shapes, and the level of ambient illumination in the vicinity of different sizes of leaves. In the present study, we tested for leaf color, shape and size preferences in a leaf-dwelling jumping spider (Lyssomanes viridis) with known summer and winter host plants, while controlling for these correlates. First, color preferences were tested outdoors under the natural illumination of their forest habitat. Lyssomanes viridis did not prefer to perch on a green substrate compared with various shades of gray, but did prefer the second darkest shade of gray we presented them with. Of the green and gray substrates, this shade of gray's integrated photon flux (350-700 nm), viewed from below, i.e. the spider's perspective in the arena, was the most similar to that of real leaves. This relationship also held when we weighted the transmitted photon flux by the jumping spiders' green photopigment spectral sensitivity. Spiders did not prefer the star-like leaf shape of their summer host plant, Liquidambar styraciflua, to a green circle of the same area. When given a choice between a L. styraciflua leaf-shaped stimulus that was half the area of an otherwise identical alternative, spiders preferred the larger stimulus. However, placing a neutral density filter over the side of the experimental arena with the smaller stimulus abolished this preference, with spiders then being more likely to choose the side of the arena with the smaller stimulus. In conclusion, L. viridis appears to use ambient illumination and possibly perceived leaf brightness but not leaf shape or color to locate its microhabitat. This calls for a careful re-examination of which visual cues a variety of arthropods are actually attending to when they search for their preferred host species or microhabitat.
[Mh] Termos MeSH primário: Sinais (Psicologia)
Ecossistema
Locomoção/fisiologia
Aranhas/fisiologia
Percepção Visual/fisiologia
[Mh] Termos MeSH secundário: Animais
Modelos Lineares
Liquidambar/fisiologia
Tamanho do Órgão
Fótons
Pigmentação
Folhas de Planta/anatomia & histologia
Folhas de Planta/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160605
[St] Status:MEDLINE
[do] DOI:10.1242/jeb.129122


  9 / 92 MEDLINE  
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[PMID]:26616104
[Au] Autor:Hu WJ; Wu Q; Liu X; Shen ZJ; Chen J; Liu TW; Chen J; Zhu CQ; Wu FH; Chen L; Wei J; Qiu XY; Shen GX; Zheng HL
[Ad] Endereço:Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, P. R. China.
[Ti] Título:Comparative Proteomic Analysis Reveals the Effects of Exogenous Calcium against Acid Rain Stress in Liquidambar formosana Hance Leaves.
[So] Source:J Proteome Res;15(1):216-28, 2016 Jan 04.
[Is] ISSN:1535-3907
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Acid rain (AR) impacts forest health by leaching calcium (Ca) away from soils and plants. Ca is an essential element and participates in various plant physiological responses. In the present study, the protective role of exogenous Ca in alleviating AR stress in Liquidambar formosana Hance at the physiological and proteomic levels was examined. Our results showed that low Ca condition resulted in the chlorophyll content and photosynthesis decreasing significantly in L. formosana leaves; however, these effects could be reversed by high Ca supplementation. Further proteomic analyses successfully identified 81 differentially expressed proteins in AR-treated L. formosana under different Ca levels. In particular, some of the proteins are involved in primary metabolism, photosynthesis, energy production, antioxidant defense, transcription, and translation. Moreover, quantitative real time polymerase chain reaction (qRT-PCR) results indicated that low Ca significantly increased the expression level of the investigated Ca-related genes, which can be reversed by high Ca supplementation under AR stress. Further, Western blotting analysis revealed that exogenous Ca supply reduced AR damage by elevating the expression of proteins involved in the Calvin cycle, reactive oxygen species (ROS) scavenging system. These findings allowed us to better understand how woody plants respond to AR stress at various Ca levels and the protective role of exogenous Ca against AR stress in forest tree species.
[Mh] Termos MeSH primário: Cálcio/toxicidade
Liquidambar/metabolismo
Folhas de Planta/metabolismo
Proteínas de Plantas/metabolismo
Proteoma/metabolismo
[Mh] Termos MeSH secundário: Chuva Ácida
Expressão Gênica
Liquidambar/efeitos dos fármacos
Redes e Vias Metabólicas
Folhas de Planta/efeitos dos fármacos
Proteínas de Plantas/genética
Proteoma/genética
Proteômica
Estresse Fisiológico
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Acid Rain); 0 (Plant Proteins); 0 (Proteome); SY7Q814VUP (Calcium)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151201
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jproteome.5b00771


  10 / 92 MEDLINE  
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[PMID]:26384086
[Au] Autor:Zhang W; Sathitsuksanoh N; Barone JR; Renneckar S
[Ad] Endereço:Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, VA 24061, United States; Department of Sustainable Biomaterials, Virginia Tech, Blacksburg, VA 24061, United States.
[Ti] Título:Enhanced enzymatic saccharification of pretreated biomass using glycerol thermal processing (GTP).
[So] Source:Bioresour Technol;199:148-154, 2016 Jan.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Biomass was heated (200-240°C) in the presence of glycerol, for 4-12 min, under shear to disrupt the native cell wall architecture. The impact of this method, named glycerol thermal processing (GTP), on saccharification efficiency of the hardwood Liquidambar styraciflua, and a control cellulose sample was studied as a function of treatment severity. Furthermore, the enzymatic conversion of samples with varying compositions was studied after extraction of the structural polymers. Interestingly, the sweet gum processed materials crystallinity index increased by 10% of the initial value. The experiments revealed that the residual lignin was not a barrier to limiting the digestibility of cellulose after pretreatment yielding up to 70% glucose based on the starting wood material. Further xylan removal greatly improved the cellulose hydrolysis rate, converting nearly 70% of the cellulose into glucose within 24h, and reaching 78% of ultimate glucan digestibility after 72 h.
[Mh] Termos MeSH primário: Biomassa
Glicerol/química
Temperatura Alta
[Mh] Termos MeSH secundário: Carboidratos/química
Parede Celular
Celulase/química
Celulose/química
Glucanos
Hidrólise
Lignina/química
Liquidambar/química
Madeira
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Carbohydrates); 0 (Glucans); 9004-34-6 (Cellulose); 9005-53-2 (Lignin); EC 3.2.1.4 (Cellulase); PDC6A3C0OX (Glycerol)
[Em] Mês de entrada:1612
[Cu] Atualização por classe:170811
[Lr] Data última revisão:
170811
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150919
[St] Status:MEDLINE



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