检索结果-南通市图书馆

No trade-off between trichome production and tolerance to leaf and inflorescence damage in a natural population of Arabidopsis lyrata

引用

Journal of Plant Ecology 2014年第4期7卷 373-383页

作者： adriana puentes JonÅgren Department of Plant Ecology and Evolution Evolutionary Biology Centre(EBC)Uppsala UniversityNorbyvägen 18DSE-75236 UppsalaSweden

Aims Early models of plant defense conceived resistance and tolerance to herbivore damage as mutually exclusive *** for this idea has been equivocal and studies on these two strategies are still needed to understand the evolution of defenses in natural *** Arabidopsis lyrata,the production of trichomes,a documented resistance trait,has been associated with a fitness cost in the absence of *** examined whether trichome production is also associated with reduced tolerance to simulated herbivore *** We conducted a field experiment in a natural swedish population of *** where we inflicted leaf(0 vs.50%of the area of each leaf removed)and inflorescence damage(0 vs.50%of inflores-cences removed)to trichome-producing and glabrous plants in a factorial *** examined the response(survival,growth and reproduction)of the plants to the imposed damage over 2 *** Findingstrichome-producing plants were not less tolerant than glabrous plants to simulated herbivore damage(no significant morph×leaf damage or morph×inflorescence damage interactions).Inflorescence and leaf damage had independent negative effects on the performance of damaged *** damage reduced rosette size the year of damage,but effects on reproductive output in the year of damage,and on survival and reproductive performance the following year were weak and not statistically *** damage significantly reduced the number of flowers,fruits and seeds the year of damage,but not in the following *** of morph,the study population was more tolerant to leaf than to inflorescence *** results indicated no trade-off between trichome production and tolerance,suggesting that these two defense mechanisms have the potential to evolve indepen-dently in this *** population.

关键词： plant defense fitness costs resistance traits defoliation florivory

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science,technology,and innovation in health for the next twenty years:A survey analysis in Colombia

Health Care Science

引用

Health Care Science 2024年第2期3卷 78-87页

作者： Oscar Espinosa Gabriela puentes Jhonathan Rodríguez adriana Robayo Juan-Manual Anaya Economic Models and Quantitative Methods Research Group Centro de Investigaciones para el DesarrolloUniversidad Nacional de ColombiaBogotáD.C.Colombia Directorate of Analytical Economic and Actuarial Studies in HealthInstituto de Evaluación Tecnológica en Salud(IETS)BogotáD.C.Colombia Departament of Radiology Fundación Santa Fe de BogotáBogotáD.C.Colombia International Mission of Wise 2019 BogotáD.C.Colombia Executive Directorate Instituto de Evaluación Tecnológica en Salud(IETS)BogotáD.C.Colombia Health Research and Innovation Center Coosalud EPSCartagenaColombia

Background:Colombia is a Latin American country with a very complex social and political context that has not allowed the allocation of sufficient resources to the fields of science,technology,and innovation(STI).This is particularly worrying for the area of health since not enough resources are allocated for public health,research,or ***:The so-called“Great Survey in Health 2019”was administered online through the SurveyMonkey platform to 5298 people in different regions of the country,representing the public,private,and academic *** questionnaire consisted of 46 open and closed questions,including demographic *** analysis involved textual analytics and sentiment ***:Overall,56%of those surveyed were women within the adult life *** respondents had a postgraduate *** participation was observed in the Oriental,Bogotá,and Antioquia regions,which also concentrate the largest number of resources for *** the main recommendations derived from the results,priorities include investing in research,personalised medicine,promoting the social appropriation of knowledge,addressing mental health,regulating research through a statute,promoting undergraduate research,and establishing recertification exams to pursue ***:The results of this original study serve as a fundamental input to promote and strengthen the STI processes in life sciences and *** serve as a guide to generate public policies and actions that guarantee better health and well-being for the Colombian population,strategically proposing a clear roadmap for the next 20 years.

关键词： health survey science technology innovation Colombia public health text analytics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Song divergence indicates an unclear relationship between the Neotropical and Nearctic Horned Larks

引用

Avian Research 2021年第2期12卷 161-172页

作者： Jimmy Alexander Vargas-puentes Luis Alejandro Arias-Sosa Carolina Ramos-Montaño Grupo Ecología de Organismos(GEO-UPTC) Escuela de Ciencias BiológicasUniversidad Pedagógica Y Tecnológica de ColombiaTunjaColombia

Background:Some studies have indicated that the Horned Larks(Eremophila alpestris)should be considered as a species *** it split into four species or clades and seven subclades based on genetic,morphological,and biogeographic ***,other aspects like song divergence have not been studied and several subspe-cies have not been evaluated,leading to important information gaps in this group of *** this work,we aimed to assess the differences in song traits and playback response between the Nearctic subclade and the Neotropical or Colombian subspecies ***:We compared six song traits between these groups and performed field playback experiments,to test the response of the Neotropical larks to both *** tested the difference in the variables for separate as well as by principal component analysis(PCA).Results:We found significant differences(p<0.05)in the individual song traits and the PCA analysis between the two ***,the PCA analysis showed a clearer divergence of the Neotropical songs in comparison to the Nearctic songs of different locations within North ***,the playback analysis showed a significantly lower response of *** to the songs of the Nearctic ***:Besides this song divergence,there are important ecological and biogeographic differences between the Neotropical and Nearctic Horned Larks,that indicate an unclear relationship between these two ***,further morphological and genetic studies are required to clarify the taxonomy of the Neotropical Horned Lark and define if they share the same evolutionary history as the other subspecies of the Nearctic subclade.

关键词： Birdsong Eremophila alpestris peregrina Song features Speciation Reproductive barrier

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Sarcomatoid carcinoma of the jejunum presenting as obscure gastrointestinal bleeding in a patient with a history of gliosarcoma

引用

Gastroenterology Report 2014年第2期2卷 150-153页

作者： Nidia Alfonso puentes Carmen Jimenez-Alfaro Larrazabal Maria Isabel Garcia Higuera Clinical Neurophysiology Department Hospital Universitario de BurgosSpain Department of Internal Medicine Hospital Universitario de BurgosSpain Department of Pathology Hospital Universitario de BurgosSpain

Small bowel malignant tumors are rare and sarcomatoid carcinomas have rarely been reported at this *** report a 56-year-old woman,with history of an excised gliosarcoma,who presented with recurrent obscure gastrointestinal *** underwent endoscopy and colonoscopy,which failed to identify the cause of the *** abdominal computed tomography scan located a tumor in the small *** revealed a jejunal sarcomatoid *** developed tumor recurrence and multiple liver metastases shortly after *** is required for accurate *** carcinoma is a rare cause of obscure gastrointestinal bleeding,which is associated with a poor prognosis.

关键词： obscure gastrointestinal bleeding small bowel tumors sarcomatoid carcinoma

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cold Seeps Associated with Structured Benthic Communities: More Accurate Identification and Evaluation Using a New Multibeam Survey Methodology in the Offshore Southern Colombian Caribbean

引用

International Journal of Geosciences 2016年第5期7卷 761-774页

作者： Adrian Digby Vladimir puentes Jorge León Lionel Fray Associates Katy Texas USA Aquabiosfera & Anadarko PC Inc. Woodlands Texas USA Anadarko Colombia Bogota Colombia

A new methodology was developed to identify cold seeps and structured benthic communities associated, which was applied for the first time in the offshore southern Colombian Caribbean. The integral method consists on a new processing of double-coverage (200%) high-resolution backscatter data combined with bathymetric information;validation was done correlating identified gas plumes, seabed cores and drift camera surveys. Results showed that the elimination of artefacts and the increased signal of the backscatter data allowed accurate plotting of seep boundaries and categorization of seeps into an activity catalogue, with more than 200 seeps identified. Most seeps have chemosynthetic communities associated and data analysis from a previous survey showed two ridges with hard ground as the only possible areas for the development the of deep- water corals. Seep results were compared with designated Areas of Significance for Biodiversity (ASB) identifying seeps both within and outside the ASBs, and showing that the presence of seeps and chemosynthetic communities associated were driven more by geological processes than for big-scale seabed morphology, since they were found in both plains and ridges. This methodology allows an accurate seabed map of structured benthic communities, which may work as a precise geo-hazard map to ensure the oil & gas industry can avoid these areas of shallow gas for further developments, and as a map of deep-water structured benthic communities with environmental significance.

关键词： Backscatter Cold Seeps Chemosynthetic Communities Southern Colombian Caribbean

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

错失的机遇:美国大都市区的公交与就业

引用

城市规划学刊 2014年第3期 120-122页

作者： TOMER A KNEEBONE E puentes R 周于杰刘冰

该研究是布鲁金斯学会2009年启动的"大都市区的机会"系列(Metropolitan Infrastructure Initiative Series and Metropolitan Opportunity Series)中的子项目,从提供影响大都市区公交可达范围和效率的背景因素开始,在阐述了用于表征美... 详细信息

该研究是布鲁金斯学会2009年启动的"大都市区的机会"系列(Metropolitan Infrastructure Initiative Series and Metropolitan Opportunity Series)中的子项目,从提供影响大都市区公交可达范围和效率的背景因素开始,在阐述了用于表征美国最大的100个大都市区的数据和方法之后,报告给出了这些都市区内部和跨区公交特征的一系列测量结果,在这一过程中,它评估了相关于公交如何服务都市区的人口以及联系这些人口和就业岗位的区域性与地方性因素,这份报告最后为各个级别的政策制定者、雇主和工人提出了一系列启示。

关键词：美国大都市区岗位大都市地区可达性能达性公交服务就业

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Effect of Domestic Wastewater as Co-Substrate on Biological Stain Wastewater Treatment Using Fungal/Bacterial Consortia in Pilot Plant and Greenhouse Reuse

引用

Journal of Water Resource and Protection 2018年第3期10卷 369-393页

作者： Pedroza-Camacho Lucas David Lores-Acosta Juan Camilo Rojas-Enríquez Johans Farid Mateus-Maldonado Juan Felipe puentes Cindy Stephanie Ramírez-Rodríguez Julio Mendez-Casallas Francy Janeth Salcedo-Reyes Juan Carlos Díaz-Ariza Lucía Ana Lozano-puentes Hair Santiago Pedroza-Rodríguez Aura Marina Programa de Biología. Departamento de Ciencias Básicas Universidad de La Salle Bogotá D.C. Colombia Facultad de Ingeniería Departamento de Ingeniería Ambiental Universidad de La Salle Bogotá D.C. Colombia Laboratorio de Microbiología Ambiental y de Suelos Grupo de Biotecnología Ambiental e Industrial Departamento de Microbiología Facultad de Ciencias Pontificia Universidad Javeriana Bogotá D.C. Colombia Laboratorio de Películas Delgadas y Nanofotonica Departamento de Física Facultad de Ciencias Pontificia Universidad Javeriana Bogotá D.C. Colombia Laboratorio Asociaciones suelo planta microorganismos (LAMIC) Grupo de Investigación en Agricultura Biológica Departamento de Biología Facultad de Ciencias Pontificia Universidad Javeriana Bogotá D.C. Colombia

In this study, a pilot wastewater treatment plant was used to evaluate the co-treatment of biological-staining residues and domestic wastewater under non-sterile conditions. A novel microbial consortia formed by Trametes versicolor, Trametes sp, Pleurotus ostreatus, Pseudomonas fluorescens, Pseudomonas azotoformans, Pseudomonas sp, Enterobacter xianfangensis and Bacillus subtillis was inoculated in an extended aeration type bio-reactor. The treatment units were operated during three consecutive cycles during a period of 147 h. After the last operating cycle, the concentrations of Chemical Oxygen Demand, Biochemical Oxygen Demand, Color Units, Total suspended solids, and the pH value were 1695 mg/L, 105 mg/L, 106 CU, 5), 1367 (CU), 566 mg/L (TSS) and 7.0 (pH) respectively. The reduction of pollutants load was related with the ratio of the two types of wastewater (3.5:0.5) combined to increase biodegradability, the concentration of fungi and bacteria used in the consortia (30 × 103 - 55 × 106 CUF/mL Total Fungi and 70 × 107 - 83 × 108 CFU/mL of Total Bacteria) and ligninolytic enzymes production, Laccase (13 - 96 U/L), MnP (9.8 - 39 U/L) and LiP (0.3 - 5.3 U/L). The post-treated effluent was used as irrigation water. Lolium perenne plants were watered during 60 days with post-treated effluent. The results of root weight showed that there are significant differences between the initial water and the effluent obtained after the operational cycles (p = 0.00470). The highest root weights (1 - 1.12 g) were found in plants irrigated with water obtained from the last treatment cycle.

关键词： Fungal/Bacterial Consortia Biological Staining and Domestic Wastewater Co-Treatment and Irrigation Reuse

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Foraging Behaviour of Apis melliferaL. and Scaptotrigona bipunctataon Dombeya wallichiiFlowers in Southern Brazil

引用

Agricultural Sciences 2019年第8期10卷 1124-1134页

作者： Sandra M. D. puentes Jessica C. C. Lopez Douglas Galhardo José W. S. Oliveira Vagner A. Arnaut de Toledo Departamento de Zootecnia Universidade Estadual de Maringá Maringá Paraná Brazil

This research was carried out to evaluate the foraging behaviour of Apis mellifera and Scaptotrigona bipunctata and its relationship with environmental variables in Dombeya wallichii considering the following aspects: 1) Type of resource harvested, 2) Visitation rate, 3) Length of visit, 4) sugar concentration in the stored nectar in the honey crop of A. mellifera and secreted by the flower and 5) floral constancy. Both species collected mainly nectar, with a visitation rate of 4.2 flowers for A. mellifera and 1.1 flowers for S. bipunctata and visit length of 9.2 and 34.2 seconds, respectively. The sugar concentration had a positive relationship with temperature and luminosity, with mean values of 12.3% in the nectar and 14.2% in the honey crop. Bees were classified by specialists because the pollen of D. wallichii was predominant in the pollen basket, but the pollen of Emilia sonchifolia and Raphanus sativus was also found. These results suggest that the species under study take advantage of the resources offered by D. wallichii, therefore, this species is an important source for the maintenance of the bees in the season of lack of food.

关键词： Flower Constancy Foraging Behaviour Honeybee Stingless Bee Plant-Pollinator Interaction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：