scholarly journals Bioprospecting insecticidal compounds from plants native to Mato Grosso do Sul, Brazil

2008 ◽  
Vol 22 (4) ◽  
pp. 1136-1140 ◽  
Author(s):  
Antonio P. Souza ◽  
Maria R. Marques ◽  
Talal S. Mahmoud ◽  
Bruno A. Caputo ◽  
Gabriel M. Canhete ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Sitophilus Zeamais ◽  
The Other ◽  
Leaf Extracts ◽  
Mato Grosso ◽  
Wheat Grains ◽  
Insecticidal Effect ◽  
Old Adult ◽  
Mato Grosso Do Sul ◽  
Insecticidal Compounds

This paper reports on an evaluation of the insecticidal activity of extracts prepared from leaves of Tapirira guianensis Aubl. (Anacardiaceae), Attalea phalerata (Mart. ex Spreng.) Burret (Arecaceae), Eugenia uniflora L. (Myrtaceae), and Gomphrena elegans Mart. (Amaranthaceae) and from stems of Myracrodruon urundeuva Allemão (Anacardiaceae). Four extracts and 18 fractions with a range of polarities were tested. Ten-gram batches of wheat grains were each nebulized with 1 mL of a separate extract at 10% w/v. After solvent evaporation at 38 ºC, the grains were placed into flasks along with 20 unsexed 10- to 20-day old adult individuals of Sitophilus zeamais. The assessment was carried out on the fifth and tenth day by counting and discarding the dead insects. Leaf extracts of G. elegans showed an insecticidal effect ranging from 27% to 60% by the fifth day, whereas the effect of the remaining extracts tested (if active at all) did not exceed 20% in the same period. By the tenth day, the most active extracts were those of A. phalerata (hexanic, 36.5%) and all those of G. elegans (5280.5%), whereas the effect of the other extracts did not exceed 30%.

scholarly journals Insecticidal Effect of Extracts from Native Plants to Mato Grosso do Sul, Brazil, on Sitophilus zeamais Mots. (Coleoptera: Curculionidae)

BioAssay ◽  
2010 ◽  
Vol 5 (0) ◽  
Author(s):  
Antonio Pancrácio De Souza ◽  
Maria Marques ◽  
Talal Mahmoud ◽  
Vanderlan Bolzani ◽  
Bruno Caputo ◽  
...  
Keyword(s):  
Native Plants ◽  
Sitophilus Zeamais ◽  
Mato Grosso ◽  
Insecticidal Effect ◽  
Mato Grosso Do Sul

scholarly journals Natural infection of phlebotomines (Diptera: Psychodidae) in a visceral-leishmaniasis focus in Mato Grosso do Sul, Brazil

2007 ◽  
Vol 49 (2) ◽  
pp. 119-122 ◽  
Author(s):  
João Cezar do Nascimento ◽  
Byanca Regina de Paiva ◽  
Rosely dos Santos Malafronte ◽  
Wedson Desidério Fernandes ◽  
Eunice Aparecida Bianchi Galati
Keyword(s):  
Visceral Leishmaniasis ◽  
Natural Infection ◽  
Leishmania Species ◽  
Common Species ◽  
The Other ◽  
Lutzomyia Longipalpis ◽  
Leishmania Chagasi ◽  
Mato Grosso ◽  
Negative Results ◽  
Mato Grosso Do Sul

The main purpose of this study was to investigate natural infection by Leishmania in phlebotomine females in a visceral-leishmaniasis focus in Antonio João county in Mato Grosso do Sul State, Brazil. Between June and October 2003, the digestive tracts of 81 females captured in Aldeia Campestre, Aldeia Marangatu and Povoado Campestre were dissected. The females were separated by species, location, area and date of capture into 13 groups and kept in ethanol 70%. To identify the Leishmania species using the PCR technique, amplifications of the ribosomal-DNA (rDNA) and mini-exon genes were analyzed. Of the 81 specimens, 77 (95%) were Lutzomyia longipalpis, making this the most common species; only one specimen of each of the species Brumptomyia avellari, Evandromyia cortelezzii, Evandromyia lenti and Nyssomyia whitmani was found. Trypanosomatids were identified in eight of the nine groups of Lutzomyia longipalpis (10.39%) one group from Aldeia Campestre, one from Aldeia Marangatu and six from Povoado Campestre; of the eight groups, one from Aldeia Marangatu and another, with promastigotes forms also confirmed by dissection (1.23%) from Povoado Campestre, were identified by PCR as Leishmania chagasi (2.6%). The other groups gave negative results. These findings indicate that there is a high risk of leishmaniasis transmission in this area.

scholarly journals Check-list of the Tachinidae (Diptera) of Mato Grosso do Sul, Brazil

2017 ◽  
Vol 107 (suppl) ◽  
Author(s):  
Silvio Shigueo Nihei ◽  
André César Lopes ◽  
Rodrigo de Vilhena Perez Dios ◽  
Filipe Macedo Gudin
Keyword(s):  
Atlantic Forest ◽  
The State ◽  
The Other ◽  
Check List ◽  
Mato Grosso ◽  
Mato Grosso Do Sul

Abstract In the state of Mato Grosso do Sul, which is composed by four macroregions, Cerrado, Chaco, Atlantic Forest and Pantanal, there are 39 species and 24 genera of Tachinidae based on the literature. The subfamily Tachininae, with 15 species occurring in the State, has the highest representativeness, while the other subfamilies, Exoristinae, Phasiinae, and Dexiinae, with respectively 14, 7 and 3 species.

A new species of the genus Rachicerus Walker (Diptera: Xylophagidae), with notes on Messias Carrera’s 1940 and 1945 types housed in Museu de Zoologia, Universidade de São Paulo and in Instituto Oswaldo Cruz, Rio de Janeiro, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4668 (1) ◽  
pp. 126-134
Author(s):  
JOSÉ ROBERTO PUJOL-LUZ
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Sao Paulo ◽  
The Other ◽  
São Paulo ◽  
Type Specimens ◽  
Mato Grosso ◽  
Brazilian Species ◽  
Mato Grosso Do Sul ◽  
A New Species

Five Rachicerus species are recorded in Brazil: Rachicerus lanei Carrera, 1940, R. oliverioi Carrera, 1940, R. lopesi Carrera, 1940, R. marcusi Carrera, 1940 and, R. shannoni Carrera, 1945. Here I describe a new species Rachicerus carrerai sp. nov. based on three male specimens from Brazil (Amazonia and Mato Grosso do Sul) and Colombia (Chocó). The new species is distinguished from the other known species by the antenna with bipectinate flagellomeres, a character only known from fossils. The conditions of the Messias Carrera’s type specimens are discussed and a key for the Brazilian species of Rachicerus is provided. 

scholarly journals Innovative Capacity of Incubated Companies in Brazilian Technology-Based Business Incubators

2020 ◽  
Vol 8 (12) ◽  
pp. 294-313
Author(s):  
Ádria Maria da Rocha Caixeta ◽  
Marcelo Henrique Stoppa
Keyword(s):  
Service Sector ◽  
The Other ◽  
Business Incubators ◽  
Mato Grosso ◽  
Descriptive Research ◽  
Sectorial Analysis ◽  
Distrito Federal ◽  
Data Collection Technique ◽  
Innovative Capacity ◽  
Mato Grosso Do Sul

TBCs are ventures formed by entrepreneurs whose core is technical knowledge and which are sometimes accompanied by business incubators. It is estimated that the earnings of TBCs incubated in Brazil are more than R$550 million and that they generate around 14 thousand jobs. Thus, given the importance of TBCs for a country's social and economic development, this research is justified, which aims to measure the innovative capacity of TBCs linked to incubators of Brazilian technology-based companies. The chosen methodology was descriptive research, of quantitative nature, whose data collection technique uses the Innovation Radar questionnaire. The sample of this study had the participation of 62 incubated in the incubation stage in 22 incubators located in the states of Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, and Distrito Federal. Among other results, the study showed that, in a sectorial analysis, mining companies in the service sector are not very innovative and the other occasional innovators, as well as that the industries of Mato Grosso do Sul are not very innovative and the other occasional innovators. Finally, in comparison, all TBCs that participated in the research are occasional innovators, that is, in general, the entire sample was characterized as an occasional innovator.

scholarly journals A New Species of Randia (Rubiaceae) and the Taxonomic Significance of Foliar Anatomy in the Species of Randia of the Southern Cone of America

2020 ◽  
Vol 45 (3) ◽  
pp. 607-619 ◽  
Author(s):  
Marina D. Judkevich ◽  
Ana M. Gonzalez ◽  
Roberto M. Salas
Keyword(s):  
New Species ◽  
Vascular Tissue ◽  
Southern Cone ◽  
The Other ◽  
Similar Species ◽  
Distribution Map ◽  
Mato Grosso ◽  
Tissue Organization ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract―Randia heteromera is a new species described based on studies of taxonomy and vegetative anatomy (leaf, stipule, and colleters). This species is illustrated and diagnosed in comparison to the other four similar species of Randia in the Southern Cone of America. The species grows in areas of humid forests, locally known as the humid Chaco in the southern part of its distribution (Argentina and Paraguay), and in seasonal forests in the northern part, in northeast Paraguay and the south of Mato Grosso do Sul in Brazil. We present a key to distinguish R. heteromera from the other species of the Southern Cone of America. The species was also compared with similar taxa, Randia nitida or R. hebecarpa, occasionally used to identify material from the Southern Cone of America. A distribution map is provided. The anatomical data studied had a taxonomic value at the species level. In addition, based on the leaf anatomy studies carried out in the present study and in previous studies, three new types of vascular tissue organization in the leaf are described for Rubiaceae.

scholarly journals Insecticidal effect of essential oil and powder of Mentha pulegium L. leaves against Sitophilus oryzae (Linnaeus, 1763) and Tribolium castaneum (Herbst, 1797) (Coleoptera: Curculionidae, Tenebrionidae), the main pests of stored wheat in Morocco

2018 ◽  
Vol 87 (3) ◽  
pp. 263-278 ◽  
Author(s):  
Hanane Lougraimzi ◽  
Salma El Iraqui ◽  
Abdelaaziz Bouaichi ◽  
Safae Gouit ◽  
El Hassan Achbani ◽  
...  
Keyword(s):  
Essential Oil ◽  
Tribolium Castaneum ◽  
Insecticidal Activity ◽  
Germination Rate ◽  
Sitophilus Oryzae ◽  
Mentha Pulegium ◽  
Wheat Grains ◽  
Insecticidal Effect ◽  
Stored Grains ◽  
Leaf Powder

Abstract Stored grains are threatened by several insects, leading to losses in quality and quantity. Several studies have revealed the risks of using chemicals that can cause serious health problems for humans. It is in this perspective that the objective of our work should be seen: It was to assess the effect of the essential oil and leaf powder of Mentha pulegium against Sitophilus oryzae and Tribolium castaneum adults attacking post-harvest cereals. The insecticidal activity of the essential oil against these two insects was evaluated by three methods: contact, inhalation and ingestion. The ingestion method was used in the case of the leaf powder. The essential oil and leaf powder of Mentha pulegium exhibited insecticidal activity against Sitophilus oryzae and Tribolium castaneum adults (Mentha pulegium essential oil caused up to 100% mortality of both insects). Both insects were influenced affected by the dose, exposure time and the method by which the insecticidal activity of the essential oil was demonstrated. Adults of Sitophilus oryzae were more sensitive to different concentrations of essential oil and leaf powder than those of Tribolium castaneum. The essential oil has no effect on the germination rate of soft wheat grains (Triticum aestivum). On the contrary, it acts positively by reducing the damage caused by these major stock pests. The data from this study could present an alternative solution for replacing synthetic insecticides for the protection of stored commodities.

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