Assessment of the yield loss imparted by Orobanche aegyptiaca in tomato in Pakistan.

abstract：:Cyperaceae is an angiosperm family with the greatest diversity of species with Kranz anatomy. Four different types of Kranz anatomy (chlorocyperoid, eleocharoid, fimbristyloid and rhynchosporoid) have been described for this angiosperm family, and the occurrence and structural characteristics of these types are import...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Martins S,Alves M,Scatena VL

更新日期：2015-10-01 00:00:00

abstract：:Piper aduncum found naturally in the Amazon and southeastern Brazil, is known for its secondary metabolites that have activity on insects. Anticarsia gemmatalis and Spodoptera frugiperda are among the major insect pests associated with agricultural production. This research evaluated the biological activity of hexane,...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Lucena DC,Bertholdo-Vargas LR,Silva WC,Machado AF,Lopes TS,Moura S,Barros NM

更新日期：2017-07-01 00:00:00

abstract：:This study aimed at describing daily and seasonal variation in the activity of a population of South-American rattlesnakes (Crotalus durissus) in a savanna like habitat (Cerrado) in Southeastern Brazil. Seasonal and daily activities of snakes were evaluated by the number of captures of snakes during road surveys, acci...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Tozetti AM,Martins M

更新日期：2013-09-01 00:00:00

abstract：:In this work we study the problem of modeling identification of a population employing a discrete dynamic model based on the Richards growth model. The population is subjected to interventions due to consumption, such as hunting or farming animals. The model identification allows us to estimate the probability or the ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Loibel S,Andrade MG,do Val JB,de Freitas AR

更新日期：2010-12-01 00:00:00

abstract：:Linalool is the main compound of many essential oils and occurs in two isomeric forms: S-(+)- and R-(-)-linalool. This study aimed to determine if linalool isomers have different antimicrobial and anesthetic properties in fish. For this purpose, these compounds were previously isolated from Lippia alba (Mill.)N. E. Br...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva LL,Balconi LS,Gressler LT,Garlet QI,Sutili FJ,Vargas APC,Baldisserotto B,Morel AF,Heinzmann BM

更新日期：2017-01-01 00:00:00

abstract：:The objective was to evaluate the influence of calving and postpartum characteristics, measured in different genetic predominance, on the postpartum rebreeding. Were evaluated 437 partum from cows that received feeding management consisting of a forage base of the native field and the mating season consisted of 90 day...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Joner G,Alves Filho DC,Brondani IL,Borchate D,Klein JL,Domingues CC,Rodrigues LS,Machado DS

更新日期：2018-08-01 00:00:00

abstract：:Obligatory intracellular parasites such as Plasmodium sp, Trypanosoma cruzi, Toxoplasma gondii and Leishmania sp are responsible for the infection of hundreds of millions of individuals every year. These parasites can deliver antigens to the host cell cytoplasm that are presented through MHC class I molecules to prote...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rodrigues MM,Boscardin SB,Vasconcelos JR,Hiyane MI,Salay G,Soares IS

更新日期：2003-12-01 00:00:00

abstract：:Drought is a natural and recurrent phenomenon. It is considered 'a natural disaster' whenever it occurs in an intensive manner in highly populated regions, resulting in significant damage (material and human) and loss (socioeconomic). This paper presents the efforts developed to monitor the impact of drought in the se...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Alvalá RCS,Cunha APMA,Brito SSB,Seluchi ME,Marengo JA,Moraes OLL,Carvalho MA

更新日期：2019-01-01 00:00:00

abstract：:Brazil and the southeastern United States have faunistic similarities and differences which are of fundamental interest to the environmental scientist. These similarities and differences provide natural experimental organisms and habitats which can provide answers to basic and applied questions. What are the lethal li...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Vernberg FJ,Vernberg WB

更新日期：1976-01-01 00:00:00

abstract：:Castor bean (Ricinus communis L.) is cultivated mainly for biodiesel production because of its oil-rich seeds; it is assumed to be an anemophylous species. But pollination deficit can lead to low productivity often attributed to other reasons. In this paper, we investigated pollination requirements, pollination mechan...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rizzardo RA,Milfont MO,Silva EM,Freitas BM

更新日期：2012-12-01 00:00:00

abstract：:Abstract: Riostegotherium yanei from the Itaboraí Basin, Brazil, is the oldest known Xenarthra. This paper aims to describe the internal morphology of the osteoderms of Riostegotherium yanei from the perspective of histology and micro-CT approaches, expanding the available data on cingulate osteoderm microstructure. ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Bergqvist LP,Pereira PVLGC,Machado AS,Castro MC,Melki LB,Lopes RT

更新日期：2019-09-02 00:00:00

abstract：:Sea anemones are considered as polyphagous opportunistic predators and it has been suggested that their diet reflects the structure of the community they inhabit. The feeding ecology of intertidal species is an interesting topic to study due to their wide variety of strategies to obtain food. In this sense, we studied...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Erralde SM,AcuÑa FH

更新日期：2020-10-19 00:00:00

abstract：:Breast cancer is the most frequent and lethal neoplastic disease among women worldwide. Psidium Guajava is a promising functional food against cancer, owing to a variety of bioactive compounds. This study aimed to evaluate the anticarcinogenic potential of Pedro Sato (PS), Hitigio (HI) and Tsumori (TS) guava cultivars...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Correa MG,Couto JS,Trindade BB,Abreu JP,Nakajima VM,Oliveira FL,Farah A,Teodoro AJ

更新日期：2020-01-01 00:00:00

abstract：:A new azhdarchoid pterosaur from the Upper Cretaceous of Patagonia is described. The material consists of an incomplete edentulous lower jaw that was collected from the upper portion of the Portezuelo Formation (Turonian-Early Coniacian) at the Futalognko site, northwest of Neuquén city, Argentina. The overall morphol...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Kellner AWA,Calvo JO

更新日期：2017-01-01 00:00:00

abstract：:Estuarine sediments represent important pools of trace metals, released from both anthropogenic and natural sources. Fluctuations in the water column physicochemical conditions, on the other hand, may transfer metals from solid to liquid compartment and resulting in contamination of the surrounding environment. The pr...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva CARE,Fonseca EMD,Grotto BW,Souza FES,Baptista JA Neto

更新日期：2017-10-01 00:00:00

abstract：:A performance assessment of active magnetocaloric regenerators using entropy generation minimization is presented. The model consists of the Brinkman-Forchheimer equation to describe the fluid flow and coupled energy equations for the fluid and solid phases. Entropy generation contributions due to axial heat conductio...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Trevizoli PV,Barbosa JR

更新日期：2017-05-01 00:00:00

abstract：:This paper presents information from different sampling surveys carried out along the Santa Catarina coast in order to outline the biogeographical characteristics of the zooplankton in this region and identify species or groups of species with potential use as bioindicators. Based on a checklist of species of the zoop...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Resgalla C Jr

更新日期：2011-06-01 00:00:00

abstract：:Amazonian biodiversity is increasingly threatened due to the weakening of policies for combating deforestation, especially in Brazil. Loss of animal and plant species, many not yet known to science, is just one among many negative consequences of Amazon deforestation. Deforestation affects indigenous communities, rive...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Ellwanger JH,Kulmann-Leal B,Kaminski VL,Valverde-Villegas JM,Veiga ABGD,Spilki FR,Fearnside PM,Caesar L,Giatti LL,Wallau GL,Almeida SEM,Borba MR,Hora VPD,Chies JAB

更新日期：2020-04-17 00:00:00

abstract：:Twenty-two nitrogen-fixing Bacillus azotofixans strains were shown to produce an inhibition zone against themselves in plate assays. The B. azotofixans type strain P3L-5, chosen for further studies, produced inhibition zones against various Bacillus strains and other bacterial genera. This antibacterial substance was ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Seldin L,Penido EG

更新日期：1990-03-01 00:00:00

abstract：:The altered expression of the SOX2 transcription factor is associated with oncogenic or tumor suppressor functions in human cancers. This factor regulates the migration and invasion of different cancer cells. In this study we investigated the effect of constitutive SOX2 overexpression on the migration and adhesion cap...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Drakulic D,Vicentic JM,Schwirtlich M,Tosic J,Krstic A,Klajn A,Stevanovic M

更新日期：2015-03-01 00:00:00

abstract：:In some previous studies, we described the isolation of nine compounds from leaves of Derris urucu, a species found widely in the Amazon rainforest, identified as five stilbenes and four dihydroflavonols. In this work, three of these dihydroflavonols [urucuol A (1), urucuol B (2) and isotirumalin (3)] were evaluated t...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva EA,Lôbo LT,Silva GA,Souza Filho AP,Da Silva MN,Arruda AC,Guilhon GM,Santos LS,Arruda MS

更新日期：2013-09-01 00:00:00

abstract：:Pterosaurs possess skeletal pneumatization, which can be assessed externally through the observation of pneumatic foramina. These foramina vary in position, shape, and number among taxa. Here we propose new characters referring to the position and number of pneumatic foramina present in cervical and dorsal vertebrae o...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Buchmann R,Rodrigues T

更新日期：2019-01-01 00:00:00

abstract：:We evaluated an artificial tritrophic exposure system for use in ecotoxicological evaluations of environmental stressors on aphidophagous predators. It consists of an acrylic tube with a Parafilm M sachet containing liquid aphid diet, into which can be added environmental stressors. Immature Cycloneda sanguinea, Harmo...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Paula DP,Souza LM,Andow DA,Sousa AA,Pires CS,Sujii ER

更新日期：2016-09-01 00:00:00

abstract：:Lutjanids are marine fish and commonly inhabit coral reefs, which have migratory habits and feed in a general way, due to these characteristics, are susceptible to infections by parasites, such as cuculanid nematodes. This work aimed to report for the first time, the occurrence of Dichelyne (Dichelyne) bonacii in Braz...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Alves AM,Calassans TAS,Freire JF,Souza GTRE,Takemoto RM,Melo CM,Jeraldo VLS,Madi RR

更新日期：2019-12-02 00:00:00

abstract：:Agapanthus (Agapanthaceae) has 10 species described. However, most taxonomists differ respect to this number because the great phenotypic plasticity of the species. The cytogenetic has been an important tool to aid the plant taxon identification, and to date, all taxa of Agapanthus L'Héritier studied cytologically, pr...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Reis AC,Franco AL,Campos VR,Souza FR,Zorzatto C,Viccini LF,Sousa SM

更新日期：2016-01-01 00:00:00

abstract：:Specimens of Leptogium collected in ten localities from the State of Rio Grande do Sul were studied. Sixteen species were found of 28 records mentioned to the state, which represents around 57% of the Leptogium diversity known for Rio Grande do Sul. Leptogium exaratum is proposed as a new species. Leptogium atlanticum...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Kitaura MJ,Koch NM,Lucheta F,Käffer MI,Schmitt JL,Pedroso J,Martins SA,Rodrigues AS,Canêz LS

更新日期：2019-02-14 00:00:00

abstract：:Citrus aurantium L., commonly known as bitter orange, is widely used in folk medicine, but there is little data in the literature about the effects on pregnancy. The aim of the present study was to evaluate the influence of essential oil obtained from fruits of Citrus aurantium on the maternal reproductive outcome and...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Volpato GT,Francia-Farje LA,Damasceno DC,Oliveira RV,Hiruma-Lima CA,Kempinas WG

更新日期：2015-03-01 00:00:00

abstract：:This study aimed to describe the occurrence, morphology and prevalence of Spirocamallanus krameri, a parasite of Hoplerythrinus unitaeniatus collected in state of Pará, Brazil. The morphological and morphometric characteristics are consistent with the species S. krameri, by having a hexagonal mouth opening, 16 cephali...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Pinheiro RHS,Cardoso PJC,Monks S,Santos JN,Giese EG

更新日期：2020-10-28 00:00:00

abstract：:The present study aimed to assess the accuracy of linear measurements performed with two software packages in multislice (MSCT) and cone beam (CBCT) computed tomography (CT) images. The sample consisted of 10 human mandibles marked standardly 8 times with metallic orthodontic wires. The mandibles underwent both MSCT a...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva AALS,Franco A,Fernandes Â,Costa C,Barbosa JS,Westphalen FH

更新日期：2017-10-01 00:00:00

abstract：:Two experiments (E) were carried out to evaluate the effects of fumaric acid and an acidifier blend [composed by calcium formate, calcium lactate and medium-chain fatty acids (capric and caprylic)] in piglet diets containing colistin (40 ppm) or halquinol (120 ppm) on performance, diarrhea incidence (E1), organs relat...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Grecco HAT,Amorim AB,Saleh MAD,L P Tse M,Telles FG,Miassi GM,Pimenta GM,Berto DA

更新日期：2018-02-19 00:00:00