Base de dados : MEDLINE
Pesquisa : G15 [Categoria DeCS]
Referências encontradas : 6611 [refinar]
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  1 / 6611 MEDLINE  
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[PMID]:27775388
[Au] Autor:Zhou J
[Ad] Endereço:School of Mathematics and Statistics, Southwest University, Chongqing, 400715, China. email: jzhouwm@gmail.com.
[Ti] Título:Bifurcation analysis of a diffusive plant-wrack model with tide effect on the wrack.
[So] Source:Math Biosci Eng;13(4):857-885, 2016 08 01.
[Is] ISSN:1551-0018
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:This paper deals with the spatial, temporal and spatiotemporal dynamics of a spatial plant-wrack model. The parameter regions for the stability and instability of the unique positive constant steady state solution are derived, and the existence of time-periodic orbits and non-constant steady state solutions are proved by bifurcation method. The nonexistence of positive nonconstant steady state solutions are studied by energy method and Implicit Function Theorem. Numerical simulations are presented to verify and illustrate the theoretical results.
[Mh] Termos MeSH primário: Modelos Biológicos
Fenômenos Fisiológicos Vegetais
Ondas de Maré
[Mh] Termos MeSH secundário: Simulação por Computador
Alga Marinha/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE
[do] DOI:10.3934/mbe.2016021


  2 / 6611 MEDLINE  
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[PMID]:28947315
[Au] Autor:Hao Y; Ma C; Zhang Z; Song Y; Cao W; Guo J; Zhou G; Rui Y; Liu L; Xing B
[Ad] Endereço:Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
[Ti] Título:Carbon nanomaterials alter plant physiology and soil bacterial community composition in a rice-soil-bacterial ecosystem.
[So] Source:Environ Pollut;232:123-136, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to compare the toxicity effects of carbon nanomaterials (CNMs), namely fullerene (C ), reduced graphene oxide (rGO) and multi-walled carbon nanotubes (MWCNTs), on a mini-ecosystem of rice grown in a loamy potted soil. We measured plant physiological and biochemical parameters and examined bacterial community composition in the CNMs-treated plant-soil system. After 30 days of exposure, all the three CNMs negatively affected the shoot height and root length of rice, significantly decreased root cortical cells diameter and resulted in shrinkage and deformation of cells, regardless of exposure doses (50 or 500 mg/kg). Additionally, at the high exposure dose of CNM, the concentrations of four phytohormones, including auxin, indoleacetic acid, brassinosteroid and gibberellin acid 4 in rice roots significantly increased as compared to the control. At the high exposure dose of MWCNTs and C , activities of the antioxidant enzymes superoxide dismutase (SOD) and peroxidase (POD) in roots increased significantly. High-throughput sequencing showed that three typical CNMs had little effect on shifting the predominant soil bacterial species, but the presence of CNMs significantly altered the composition of the bacterial community. Our results indicate that different CNMs indeed resulted in environmental toxicity to rice and soil bacterial community in the rhizosphere and suggest that CNMs themselves and their incorporated products should be reasonably used to control their release/discharge into the environment to prevent their toxic effects on living organisms and the potential risks to food safety.
[Mh] Termos MeSH primário: Ecossistema
Nanotubos de Carbono/toxicidade
Oryza/química
Microbiologia do Solo
Poluentes do Solo/toxicidade
[Mh] Termos MeSH secundário: Bactérias
Meio Ambiente
Fulerenos
Grafite/química
Nanotubos de Carbono/química
Oryza/microbiologia
Óxidos
Peroxidase
Fenômenos Fisiológicos Vegetais
Raízes de Plantas
Solo/química
Poluentes do Solo/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fullerenes); 0 (Nanotubes, Carbon); 0 (Oxides); 0 (Soil); 0 (Soil Pollutants); 7782-42-5 (Graphite); EC 1.11.1.7 (Peroxidase); NP9U26B839 (fullerene C60)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180209
[Lr] Data última revisão:
180209
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170927
[St] Status:MEDLINE


  3 / 6611 MEDLINE  
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[PMID]:29240777
[Au] Autor:Ji C; Jia Y; Gao Z; Wei H; Li X
[Ad] Endereço:School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, China.
[Ti] Título:Nonlinear spectral mixture effects for photosynthetic/non-photosynthetic vegetation cover estimates of typical desert vegetation in western China.
[So] Source:PLoS One;12(12):e0189292, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Desert vegetation plays significant roles in securing the ecological integrity of oasis ecosystems in western China. Timely monitoring of photosynthetic/non-photosynthetic desert vegetation cover is necessary to guide management practices on land desertification and research into the mechanisms driving vegetation recession. In this study, nonlinear spectral mixture effects for photosynthetic/non-photosynthetic vegetation cover estimates are investigated through comparing the performance of linear and nonlinear spectral mixture models with different endmembers applied to field spectral measurements of two types of typical desert vegetation, namely, Nitraria shrubs and Haloxylon. The main results were as follows. (1) The correct selection of endmembers is important for improving the accuracy of vegetation cover estimates, and in particular, shadow endmembers cannot be neglected. (2) For both the Nitraria shrubs and Haloxylon, the Kernel-based Nonlinear Spectral Mixture Model (KNSMM) with nonlinear parameters was the best unmixing model. In consideration of the computational complexity and accuracy requirements, the Linear Spectral Mixture Model (LSMM) could be adopted for Nitraria shrubs plots, but this will result in significant errors for the Haloxylon plots since the nonlinear spectral mixture effects were more obvious for this vegetation type. (3) The vegetation canopy structure (planophile or erectophile) determines the strength of the nonlinear spectral mixture effects. Therefore, no matter for Nitraria shrubs or Haloxylon, the non-linear spectral mixing effects between the photosynthetic / non-photosynthetic vegetation and the bare soil do exist, and its strength is dependent on the three-dimensional structure of the vegetation canopy. The choice of linear or nonlinear spectral mixture models is up to the consideration of computational complexity and the accuracy requirement.
[Mh] Termos MeSH primário: Clima Desértico
Fotossíntese
Fenômenos Fisiológicos Vegetais
[Mh] Termos MeSH secundário: China
Modelos Teóricos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180116
[Lr] Data última revisão:
180116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171215
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189292


  4 / 6611 MEDLINE  
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[PMID]:29216245
[Au] Autor:Nuwagaba S; Zhang F; Hui C
[Ad] Endereço:Centre for Invasion Biology, Department of Mathematical Sciences, Stellenbosch University, Matieland, South Africa.
[Ti] Título:Robustness of rigid and adaptive networks to species loss.
[So] Source:PLoS One;12(12):e0189086, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Controversies in the complexity-stability debate have been attributed to the methodologies used such as topological vs. dynamical approaches or rigid vs. adaptive foraging behaviour of species. Here, we use a bipartite network model that incorporates both topological and population dynamics to investigate the robustness of 60 real ecological networks to the loss of generalist and specialist species. We compare the response in both adaptive and rigid networks. Our results show that the removal of generalists leads to the most secondary extinctions, implying that conservation strategies should aim to protect generalist species in the ecosystem. We also show that adaptive behaviour renders networks vulnerable to species loss at initial stages but enhances long term stability of the system. However, whether adaptive networks are more robust to species loss than rigid ones depends on the structure of the network. Specifically, adaptive networks with modularity < 0.3 are more robust than rigid networks of the same modularity. Interestingly, the more modular a network is, the less robust it is to external perturbations.
[Mh] Termos MeSH primário: Adaptação Fisiológica
Conservação dos Recursos Naturais
[Mh] Termos MeSH secundário: Modelos Biológicos
Fenômenos Fisiológicos Vegetais
Polinização
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171226
[Lr] Data última revisão:
171226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171208
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189086


  5 / 6611 MEDLINE  
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[PMID]:29190749
[Au] Autor:Pavlíková Z; Holá D; Vlasáková B; Procházka T; Münzbergová Z
[Ad] Endereço:Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic.
[Ti] Título:Physiological and fitness differences between cytotypes vary with stress in a grassland perennial herb.
[So] Source:PLoS One;12(11):e0188795, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND AND AIMS: Understanding the consequences of polyploidization is a major step towards assessing the importance of this mode of speciation. Most previous studies comparing different cytotypes, however, did so only within a single environment and considered only one group of traits. To take a step further, we need to explore multiple environments and a wide range of traits. The aim of this study was to assess response of diploid and autotetraploid individuals of Knautia arvensis (Dipsacaceae) to two stress conditions, shade or drought. METHODS: We studied eleven photosynthetic, morphological and fitness parameters of the plants over three years in a common garden under ambient conditions and two types of stress. KEY RESULTS: The results indicate strong differences in performance and physiology between cytotypes in ambient conditions. Interestingly, higher fitness in diploids contrasted with more efficient photosynthesis in tetraploids in ambient conditions. However, stress, especially drought, strongly reduced fitness and disrupted function of the photosystems in both cytotypes reducing the between cytotype differences. The results indicate that drought stress reduced function of the photosynthetic processes in both cytotypes but particularly in tetraploids, while fitness reduction was stronger in diploids. CONCLUSIONS: The photosynthesis related traits show higher plasticity in polyploids as theoretically expected, while the fitness related traits show higher plasticity in diploids especially in response to drought. This suggests that between cytotype comparisons need to consider multiple traits and multiple environments to understand the breath of possible responses of different cytotypes to stress. They also show that integrating results based on different traits is not straightforward and call for better mechanistic understanding of the relationships between species photosynthetic activity and fitness. Still, considering multiple environments and multiple species traits is crucial for understanding the drivers of niche differentiation between cytotypes in future studies.
[Mh] Termos MeSH primário: Pradaria
Fenômenos Fisiológicos Vegetais
Estresse Fisiológico
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171226
[Lr] Data última revisão:
171226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188795


  6 / 6611 MEDLINE  
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[PMID]:28902920
[Au] Autor:Bouvier M; Durrieu S; Gosselin F; Herpigny B
[Ad] Endereço:Irstea, UMR TETIS, 500 rue Jean-François Breton, Montpellier, France.
[Ti] Título:Use of airborne lidar data to improve plant species richness and diversity monitoring in lowland and mountain forests.
[So] Source:PLoS One;12(9):e0184524, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:We explored the potential of airborne laser scanner (ALS) data to improve Bayesian models linking biodiversity indicators of the understory vegetation to environmental factors. Biodiversity was studied at plot level and models were built to investigate species abundance for the most abundant plants found on each study site, and for ecological group richness based on light preference. The usual abiotic explanatory factors related to climate, topography and soil properties were used in the models. ALS data, available for two contrasting study sites, were used to provide biotic factors related to forest structure, which was assumed to be a key driver of understory biodiversity. Several ALS variables were found to have significant effects on biodiversity indicators. However, the responses of biodiversity indicators to forest structure variables, as revealed by the Bayesian model outputs, were shown to be dependent on the abiotic environmental conditions characterizing the study areas. Lower responses were observed on the lowland site than on the mountainous site. In the latter, shade-tolerant and heliophilous species richness was impacted by vegetation structure indicators linked to light penetration through the canopy. However, to reveal the full effects of forest structure on biodiversity indicators, forest structure would need to be measured over much wider areas than the plot we assessed. It seems obvious that the forest structure surrounding the field plots can impact biodiversity indicators measured at plot level. Various scales were found to be relevant depending on: the biodiversity indicators that were modelled, and the ALS variable. Finally, our results underline the utility of lidar data in abundance and richness models to characterize forest structure with variables that are difficult to measure in the field, either due to their nature or to the size of the area they relate to.
[Mh] Termos MeSH primário: Biodiversidade
Florestas
Lasers
Plantas/classificação
[Mh] Termos MeSH secundário: Teorema de Bayes
Modelos Teóricos
Filogeografia/instrumentação
Filogeografia/métodos
Fenômenos Fisiológicos Vegetais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171024
[Lr] Data última revisão:
171024
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170914
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0184524


  7 / 6611 MEDLINE  
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[PMID]:28902851
[Au] Autor:Fuller AW; Young P; Pierce BD; Kitson-Finuff J; Jain P; Schneider K; Lazar S; Taran O; Palmer AG; Lynn DG
[Ad] Endereço:Departments of Biology and Chemistry, Emory University, Atlanta, GA, United States of America.
[Ti] Título:Redox-mediated quorum sensing in plants.
[So] Source:PLoS One;12(9):e0182655, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The rhizosphere, the narrow zone of soil around plant roots, is a complex network of interactions between plants, bacteria, and a variety of other organisms. The absolute dependence on host-derived signals, or xenognosins, to regulate critical developmental checkpoints for host commitment in the obligate parasitic plants provides a window into the rhizosphere's chemical dynamics. These sessile intruders use H2O2 in a process known as semagenesis to chemically modify the mature root surfaces of proximal host plants and generate p-benzoquinones (BQs). The resulting redox-active signaling network regulates the spatial and temporal commitments necessary for host attachment. Recent evidence from non-parasites, including Arabidopsis thaliana, establishes that reactive oxygen species (ROS) production regulates similar redox circuits related to root recognition, broadening xenognosins' role beyond the parasites. Here we compare responses to the xenognosin dimethoxybenzoquinone (DMBQ) between the parasitic plant Striga asiatica and the non-parasitic A. thaliana. Exposure to DMBQ simulates the proximity of a mature root surface, stimulating an increase in cytoplasmic Ca2+ concentration in both plants, but leads to remarkably different phenotypic responses in the parasite and non-parasite. In S. asiatica, DMBQ induces development of the host attachment organ, the haustorium, and decreases ROS production at the root tip, while in A. thaliana, ROS production increases and further growth of the root tip is arrested. Obstruction of Ca2+ channels and the addition of antioxidants both lead to a decrease in the DMBQ response in both parasitic and non-parasitic plants. These results are consistent with Ca2+ regulating the activity of NADPH oxidases, which in turn sustain the autocatalytic production of ROS via an external quinone/hydroquinone redox cycle. Mechanistically, this chemistry is similar to black and white photography with the emerging dynamic reaction-diffusion network laying the foundation for the precise temporal and spatial control underlying rhizosphere architecture.
[Mh] Termos MeSH primário: Arabidopsis
Interações Hospedeiro-Parasita
Fenômenos Fisiológicos Vegetais
Percepção de Quorum/fisiologia
[Mh] Termos MeSH secundário: Arabidopsis/efeitos dos fármacos
Arabidopsis/crescimento & desenvolvimento
Arabidopsis/metabolismo
Arabidopsis/parasitologia
Benzoquinonas/farmacologia
Sinalização do Cálcio/efeitos dos fármacos
Interações Hospedeiro-Parasita/efeitos dos fármacos
Peróxido de Hidrogênio/metabolismo
Peróxido de Hidrogênio/farmacologia
Meristema/efeitos dos fármacos
Meristema/crescimento & desenvolvimento
Meristema/metabolismo
Meristema/parasitologia
Oxirredução
Raízes de Plantas/efeitos dos fármacos
Raízes de Plantas/crescimento & desenvolvimento
Raízes de Plantas/metabolismo
Raízes de Plantas/parasitologia
Espécies Reativas de Oxigênio/metabolismo
Striga/efeitos dos fármacos
Striga/crescimento & desenvolvimento
Striga/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Benzoquinones); 0 (Reactive Oxygen Species); BBX060AN9V (Hydrogen Peroxide)
[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:170914
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0182655


  8 / 6611 MEDLINE  
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[PMID]:28767717
[Au] Autor:Fois M; Fenu G; Cañadas EM; Bacchetta G
[Ad] Endereço:Centro Conservazione Biodiversità (CCB), Dipartimento di Scienze della Vita e dell'Ambiente, Università degli Studi di Cagliari, Cagliari, Italia.
[Ti] Título:Disentangling the influence of environmental and anthropogenic factors on the distribution of endemic vascular plants in Sardinia.
[So] Source:PLoS One;12(8):e0182539, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Due to the impelling urgency of plant conservation and the increasing availability of high resolution spatially interpolated (e.g. climate variables) and categorical data (e.g. land cover and vegetation type), many recent studies have examined relationships among plant species distributions and a diversified set of explanatory factors; nevertheless, global and regional patterns of endemic plant richness remain in many cases unexplained. One such pattern is the 294 endemic vascular plant taxa recorded on a 1 km resolution grid on the environmentally heterogeneous island of Sardinia. Sixteen predictors, including topographic, geological, climatic and anthropogenic factors, were used to model local (number of taxa inside each 1 km grid cell) Endemic Vascular Plant Richness (EVPR). Generalized Linear Models were used to evaluate how each factor affected the distribution of local EVPR. Significant relationships with local EVPR and topographic, geological, climatic and anthropogenic factors were found. In particular, elevation explained the larger fraction of variation in endemic richness but other environmental factors (e.g. precipitation seasonality and slope) and human-related factors (e.g. the Human Influence Index (HII) and the proportion of anthropogenic land uses) were, respectively, positively and negatively correlated with local EVPR. Regional EVPR (number of endemic taxa inside each 100 m elevation interval) was also measured to compare local and regional EVPR patterns along the elevation gradient. In contrast to local, regional EVPR tended to decrease with altitude partly due to the decreasing area covered along altitude. The contrasting results between local and regional patterns suggest that local richness increases as a result of increased interspecific aggregation along altitude, whereas regional richness may depend on the interaction between area and altitude. This suggests that the shape and magnitude of the species-area relationship might vary with elevation. This work provides-for the first time in Sardinia-a comprehensive analysis of the influence of environmental factors on the pattern of EVPR in the entire territory, from sea level to the highest peaks. Elevation, as well as other environmental and human-related variables, were confirmed to be influencing factors. In addition, variations of EVPR patterns at regional-to-local spatial scales inspire next investigations on the possible interaction between elevation and area in explaining patterns of plant species richness.
[Mh] Termos MeSH primário: Fenômenos Fisiológicos Vegetais
Plantas/classificação
[Mh] Termos MeSH secundário: Altitude
Biodiversidade
Ecossistema
Geografia
Itália
Dispersão Vegetal
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170929
[Lr] Data última revisão:
170929
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170803
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0182539


  9 / 6611 MEDLINE  
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[PMID]:28751549
[Au] Autor:Nolan T; Chen J; Yin Y
[Ad] Endereço:Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011, U.S.A.
[Ti] Título:Cross-talk of Brassinosteroid signaling in controlling growth and stress responses.
[So] Source:Biochem J;474(16):2641-2661, 2017 Jul 27.
[Is] ISSN:1470-8728
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Plants are faced with a barrage of stresses in their environment and must constantly balance their growth and survival. As such, plants have evolved complex control systems that perceive and respond to external and internal stimuli in order to optimize these responses, many of which are mediated by signaling molecules such as phytohormones. One such class of molecules called Brassinosteroids (BRs) are an important group of plant steroid hormones involved in numerous aspects of plant life including growth, development and response to various stresses. The molecular determinants of the BR signaling pathway have been extensively defined, starting with the membrane-localized receptor BRI1 and co-receptor BAK1 and ultimately culminating in the activation of BES1/BZR1 family transcription factors, which direct a transcriptional network controlling the expression of thousands of genes enabling BRs to influence growth and stress programs. Here, we highlight recent progress in understanding the relationship between the BR pathway and plant stress responses and provide an integrated view of the mechanisms mediating cross-talk between BR and stress signaling.
[Mh] Termos MeSH primário: Brassinosteroides/metabolismo
Fenômenos Fisiológicos Vegetais
Transdução de Sinais/fisiologia
Estresse Fisiológico
[Mh] Termos MeSH secundário: Proteínas de Plantas/metabolismo
Proteínas Serina-Treonina Quinases/metabolismo
Fatores de Transcrição/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Brassinosteroids); 0 (Plant Proteins); 0 (Transcription Factors); EC 2.7.11.1 (Protein-Serine-Threonine Kinases)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170803
[Lr] Data última revisão:
170803
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170729
[St] Status:MEDLINE
[do] DOI:10.1042/BCJ20160633


  10 / 6611 MEDLINE  
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[PMID]:28655293
[Au] Autor:Zhao C; Nabity PD
[Ad] Endereço:Department of Botany and Plant Sciences, University of California, Riverside, Riverside, CA, 92521, USA.
[Ti] Título:Plant manipulation through gall formation constrains amino acid transporter evolution in sap-feeding insects.
[So] Source:BMC Evol Biol;17(1):153, 2017 Jun 27.
[Is] ISSN:1471-2148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The herbivore lifestyle leads to encounters with plant toxins and requires mechanisms to overcome suboptimal nutrient availability in plant tissues. Although the evolution of bacterial endosymbiosis alleviated many of these challenges, the ability to manipulate plant nutrient status has evolved in lineages with and without nutritional symbionts. Whether and how these alternative nutrient acquisition strategies interact or constrain insect evolution is unknown. We studied the transcriptomes of galling and free-living aphidomorphs to characterize how amino acid transporter evolution is influenced by the ability to manipulate plant resource availability. RESULTS: Using a comparative approach we found phylloxerids retain nearly all amino acid transporters as other aphidomorphs, despite loss of nutritional endosymbiosis. Free living species show more transporters than galling species within the same genus, family, or infraorder, indicating plant hosts influence the maintenance and evolution of nutrient transport within herbivores. Transcript profiles also show lineage specificity and suggest some genes may facilitate life without endosymbionts or the galling lifestyle. CONCLUSIONS: The transcript abundance profiles we document across fluid feeding herbivores support plant host constraint on insect amino acid transporter evolution. Given amino acid uptake, transport, and catabolism underlie the success of herbivory as a life history strategy, this suggests that plant host nutrient quality, whether constitutive or induced, alters the selective environment surrounding the evolution and maintenance of endosymbiosis.
[Mh] Termos MeSH primário: Sistemas de Transporte de Aminoácidos/genética
Afídeos/genética
Evolução Molecular
Herbivoria
Proteínas de Insetos/genética
[Mh] Termos MeSH secundário: Animais
Afídeos/classificação
Afídeos/fisiologia
Perfilação da Expressão Gênica
Filogenia
Fenômenos Fisiológicos Vegetais
Tumores de Planta
Simbiose
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Amino Acid Transport Systems); 0 (Insect Proteins)
[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:170629
[St] Status:MEDLINE
[do] DOI:10.1186/s12862-017-1000-5



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