检索结果-南通市图书馆

Genetic Divergence among Progenies Resulting from the Crossing of Groups Coffee Timor Hybrid and Dilla ＆ Alghe

Journal of Agricultural Science and Technology(B) 2013年第12期3卷 865-872页

作者： Janine Magalhaes Guedes Juliana Costa Rezende Joao Marcos Rodrigues Andrade Lara Samuel Pereira carvalho Antonio Alves Pereira alex mendonca de carvalho department of Agriculture-UFLA Federal University of Lavras DAG-Cx. P. 3037-37.200-000 Lavras MG Brazil Agricultural Research Company of Minas Gerais-Technological Center in South of Minas Campus UFLA Cx P. 179 37200-000Lavras MG Brazil Agricultural Research Company of Minas Gerais -Technological Center in Zona da Mata Campus UFV Cx P. 216 - 36571-000Vigosa MG Brazil

This study aimed to agronomically and morphologically characterize, as well as analyze the genetic divergence of Dilla ＆ Alghe x Timor hybrid progenies of the coffee germplasm bank of Minas Gerais in Brazil to improve the breeding and management schemes of the hybrids. Forty-two morpho-agronomic traits were evaluated and the generalized Mahalanobis distance was used to quantify the genetic divergence among progenies. Tocher clustering, unweighted pair-group method using arithmetic averages （UPGMA） method and canonical variation analysis were employed as clustering strategies. The Tocher and UPGMA methods have been separated the progenies into eight and five groups, respectively. Analysis of the relative contribution of each characteristic to genetic dissimilarity highlighted the characteristics of production in liters in 2009, production notes in 2009, and average uniformity of maturation in 2009 as those that contributed most to obtaining genetic divergence. The authors observed that the first three canonical variables accounted for over 99% of the total variance observed in the full set of analyzed characteristics. High variability was observed among the 15 progenies of Dilla ＆ Alghe × Timor hybrid progenies. The progenies MG0589 and MG0592, MG0593 and MG0589, MG0591 and MG0589, MG0589 and MG0588, MG0589 and MG0583 were the most suitable crosses for exploring the genetic variability in Dilla ＆ Alghe × Timor hybrid generated from the germplasm bank of Minas Gerais. Through these crossovers, it is expected to get new coffee cultivars with desirable agronomic characteristics, as resistant to Pseudomonas xyringae pv. garcae and some breeds ofHemileia vastatrix.

关键词： Coffea arabica multivariate analysis germplasm bank genetic improvement morpho-agronomic traits.

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

Larvicidal Evaluation of Aedes aegypti and Antioxidant,Cytotoxic and Antimicrobial Potential of the Aqueous Acid Extract of Pseudoxandra cuspidata(ANNOACEAE).

引用

Journal of Pharmacy and Pharmacology 2021年第2期9卷 53-61页

作者： Ranggel carvalho Simões Rosany Lopes Martins Erica de Menezes Rabelo alex Bruno Lobato Rodrigues Ana Luzia Ferreira Farias Patrick de Castro Cantuária Marlon de Oliveira do Nascimento Sheylla Susan Moreira da Silva de Almeida Laboratory of Pharmacognosy and Phytochemistry of the Federal University of Amapá.Rodovia Juscelino Kubistchek KM-02.Jardim Marco Zero-Macapá-APBrazil Plant Taxonomy Laboratory Institute of Scientific and Technological Research of the State of AmapáHighway Jucelino KubistichekKm 1068903419MacapáBrazil

The Anonnaceae family has 2,500 species and 135 genera, which has about 14 representatives of species in Brazil,including Pseudoxandra cuspidata. The objective of this research was to study the aqueous-acid extract of P. cuspidata, evaluatingits antioxidant, larvicidal, antimicrobial and cytotoxic potential. In the preliminary phytochemical analysis, there were positivity toorganicacids and alkaloids. Inhibitory Activity of EAA was 65% against DPPH. The AAE presented to A. Salina nauplii at LC50%of 600.79 μg/mL for a periodof 24 hours. In relation to larvicidal activity to Aedes aegypti intermediates, AAE presented the LC50%in 24 Hours of 475.91 ppm and 290.73 ppm in 48 Hours. Regarding the antimicrobial action, the EAA presented 50 mg/mL MIC forP. Aeruginosa and MBC at 100 mg/mL, and for S. aureus it presented MIC of 50 mg/mL and did not present MBC. This researchcharacterized the presence of alkaloids and organicacids present in the aqueousacid extract of P. cuspidata. The extract presentedlowtoxicity in relation to the microcrustacean A. salina. It also had a relevant antioxidant potential (65% of Inhibition),larvicidalaction considered effective, antimicrobialaction for both P. Aeruginosa and S. Aureus even did not present bactericidalaction.

关键词： Pseudoxandra DPPH Artemia salina Aedes aegypti.

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

Characterization of the Biological Potential of the Essential Oils from Five Species of Medicinal Plants

引用

American Journal of Plant Sciences 2017年第2期8卷 154-170页

作者： Danubia Aparecida carvalho Selvati Rezende Rafaela Vieira Souza Maisa Lamounier Magalh?es alex Rodrigues Silva Caetano Marcos Schleiden Sousa carvalho Ellen Cristina de Souza Luiz Gustavo de Lima Guimaraes David Lee Nelson Luís Roberto Batista Maria das Gra?as Cardoso departamento de Química Universidade Federal de LavrasLavrasBrasil departamento de Ciencia dos Alimentos Universidade Federal de LavrasLavrasMGBrasil departamento de Ciência dos Alimentos Universidade Federal de LavrasLavrasMGBrasil departamento de Agricultura Universidade Federal de LavrasLavrasMGBrasil Universidade Federal de Sao Joao del-Rei Sao Joao del-ReiBrasil Universidade Federal do Vale do Jequitinhonha e Mucuri DiamantinaMGBrasil

Essential oils from Mentha piperita, Cymbopogon citratus, Rosmarinus officinalis, Peumus boldus and Foeniculum vulgare were extracted by hydrodistillation, chemically characterized and quantified by GC/MS and GC/FID. The principal componentes in the essential oil of M. piperita (carvone and limonene), C. citratus (geranial, neral and myrcene), R. officinalis (1,8-cineole, camphor and α-pinene), P. boldus (α-terpinyl formate, p-cymene and 1,8-cineole) and F. vulgare (methyl chavicol, limonene and fenchone) were identified. The oils were tested for antioxidant activity employing the DPPH (2,2-diphenyl-1-picryl-hydrazyl) radical-capture method, the oxidation of the β-carotene/linoleic acid system, and the ABTS radical-capture method. The essential oils were not effective. The antioxidant activities of the oils were determined by the hydroxyl method, and the highest activity (62.80%) was observed with the essential oil from M. piperita. Activities of 1.54 and 1.82 μg μg-1, respectively, were observed for the essential oils from C. citratus and P. Boldus using the phosphomolybdenum method. No activity was observed with respect to reducing power. The essential oil from C. citratus was effective in inhibiting the growth of L. monocytogenes (15.63 mg·L-1), S. choleraesuis (15.63 mg·L-1) and E. coli (31.25 mg·L-1), and the essential oil from P. boldus inhibited the growth of S. aureus (62.5 mg·L-1). No essential oil inhibited the growth of P. aeruginosa. A low antioxidant activity and a promising antibacterial activity were observed for these essential oils.

关键词： Natural Products Antioxidant Antibacterial Activity

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

社会化媒体中的品牌声誉管理

引用

市场营销（实务版） 2013年第1期

作者： Gary Bahadur Jason Inasi alex de carvalho

网上出现负面的评论时，公司应该探索许多相关的途径来解决问题和最小化负面影响。但是，建立和保护你的声誉的最佳途径是始终如一地交付高质量的产品和服务。

关键词：

来源：人大复印报刊资料评论

在线全文

人大复印报刊资料

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

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

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：