RENDIMENTO DE CULTIVARES DE CAUPI (Vigna unguiculata L Walp.) SUBMETIDAS À DIFERENTES LÂMINAS DE IRRIGAÇÃO

RENDIMENTO DE CULTIVARES DE CAUPI (Vigna unguiculata L Walp.) SUBMETIDAS À DIFERENTES LÂMINAS DE IRRIGAÇÃO1 Gianini Peixoto Bezerra Lima José Vanglesio de Aguiar Raimundo Nonato Távora Costa Universidade Federal do Ceará – Departamento de Engenharia Agrícola. Campus do Pici. Bloco 804. CEP 60455-760 – Fortaleza-CE Vital Pedro da Silva Paz Escola Superior de Agricultura Luiz de Queiroz – Departamento de Engenharia Rural, bolsista da FAPESP. Av. Pádua Dias, 11 – Caixa Postal 11. 13418-900 – Piracicaba-SP 1 RESUMO O caupi é um dos cultivos mais tradicionais do Norte e Nordeste do Brasil, constituindo alimento básico nestas regiões. Com este trabalho foi possível estabelecer relações entre a quantidade de água aplicada e produtividade de grãos, para três variedades de feijão caupi submetidas a diferentes lâminas de água. Para caracterização das lâminas de água foi utilizado um sistema de irrigação por aspersão convencional em linha. O controle da irrigação foi realizado a partir de tensiômetros instalados à 15 cm de profundidade. Os resultados mostraram que: i) a cultivar João Paulo II apresentou melhores resultados de produtividade para as lâminas de água aplicadas que variaram de T1 = 291,8 mm a T5 = 141,2 mm; ii) sob condições de reduzida disponibilidade de água, ou seja, menor lâmina aplicada, não ocorreu diferença estatística para a produtividade entre as cultivares estudadas; e iii) para as condições do estudo, a cultivar Setentão apresentou a menor taxa de redução do produto marginal. UNITERMOS: caupi, irrigação, função de produção LIMA, G. P. B., AGUIAR, J. V., COSTA, R. N. T., PAZ, V. P. S. Responses OF cowpea cultivars (Vigna unguiculata L Walp) at differents irrigation deficits 2 ABSTRACT The caupi is one of the most traditional cultivation of the north and northeast - Brazil, constituting a basic food in these areas. With this work it was possible to establish relationships between the amount of water applied and productivity of grains, for three caupi varieties submitted to different irrigation sheets. To diferentiate water depths in the irrigation system, the aspersion in line was used. The control of the irrigation was accomplished using tensiometers installed to 15 cm of depth. The results showed that: i) the João Paulo II variety presented better productivity for the applied water depths; ii) under reduced conditions of water avai lability for study conditions, these was no significant difference in the productivity reached among the cultivars studied; and iii) for the conditions of the study, the variety Setentão presented the smallest rate of reduction of the marginal product. KEYWORDS: cowpea, irrigation, production function

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DESENVOLVIMENTO VEGETATIVO DE CULTIVARES DE FEIJÃO-CAUPI SOB LÂMINAS DE IRRIGAÇÃO NO CERRADO RORAIMENSE

Irriga ◽

10.15809/irriga.2016v1n1p28-39 ◽

2018 ◽

Vol 1 (1) ◽

pp. 28 ◽

Cited By ~ 2

Author(s):

Viviana Da encarnaçao rodrigues Locatelli ◽

Roberto Dantas de Medeiros ◽

Oscar José Smiderle ◽

José de Anchieta Alves de Albuquerque ◽

Wellington Farias Araújo

Keyword(s):

Leaf Area Index ◽

Leaf Area ◽

Vigna Unguiculata ◽

Irrigation Water ◽

Polynomial Regression ◽

Block Design ◽

Maximum Efficiency ◽

Area Index ◽

Cowpea Cultivars ◽

Water Depths

DESENVOLVIMENTO VEGETATIVO DE CULTIVARES DE FEIJÃO-CAUPI SOB LÂMINAS DE IRRIGAÇÃO NO CERRADO RORAIMENSE VIVIANA DA ENCARNAÇÃO RODRIGUES LOCATELLI¹; ROBERTO DANTAS DE MEDEIROS²; OSCAR JOSÉ SMIDERLE²; JOSÉ DE ANCHIETA ALVES DE ALBUQUERQUE³; WELLINGTON FARIAS ARAÚJO³ ¹ Mestre em Agronomia, Inspetora de Recursos Naturais do NATURATINS-Tocantins; Rua da Prata 642, Centro, Tocantinópolis-TO. [email protected]² Doutor em Fitotecnia, Pesquisador A3 da Embrapa-Roraima. Rodovia BR 174, km 8, Distrito Industrial, Caixa Postal 133 CEP 69301-970, Boa Vista-RR. [email protected] e [email protected]³ Prof. Dr. Associado da UFRR/CCA-Centro de Ciências Agrárias (Campus Cauamé) BR 174 km 12- Monte Cristo. [email protected] e [email protected] 1 RESUMO Este trabalho teve por objetivo avaliar as características fisiológicas de cultivares de feijão-caupi sob lâminas de irrigação no cerrado Roraimense. Conduziu-se o experimento entre fevereiro e abril de 2012, no “Campo experimental Água Boa” pertencente à Embrapa-Roraima, em sistema de cultivo sobre palhada, sob irrigação por aspersão convencional. O esquema utilizado foi blocos casualizados dispondo os tratamentos em faixa, com parcelas subdivididas e cinco repetições. Testou-se quatro lâminas de irrigação com base na evapotranspiração de referência ETo de 30%, 60%, 90% e 120%, estabelecidas diariamente por meio do Tanque Classe A para o qual foi adotado o coeficiente do tanque (Kp) 0,75. As sub-parcelas foram compostas por três cultivares de feijão-caupi (BRS Guariba, BRS Novaera e BRS Pajeú) sendo avaliados: altura de plantas, massa seca da parte aérea e índice da área foliar, submetendo os dados à análise de variância com aplicação do Teste F (p<0,05). As médias das cultivares foram comparadas por meio do teste de Tukey e as médias das lâminas, por meio de regressão polinomial e do Teste t (p<0,05). Todas as variáveis foram diretamente proporcionais ao incremento das lâminas de irrigação. A cultivar BRS Pajeú apresentou efeito quadrático, com máxima eficiência na produção de massa seca da parte aérea com a lâmina de 106,84% da ETo (30 g de MSPA, com aplicação de 317,75 mm), e máximo índice de área foliar com 89,31% da ETo (IAF = 2,74, com aplicação de 265,62 mm). Palavras-chave: Vigna unguiculata. Cerrado de Roraima. Feijão macassar. Sistema de plantio direto. LOCATELLI, V. da E. R.; MEDEIROS, R. D. de; SMIDERLE, O. J.; ALBUQUERQUE, J. de A. A. de; ARAÚJO, W. F.VEGETATIVE DEVELOPMENT OF COWPEA CULTIVARS UNDER IRRIGATION IN THE SAVANNAH OF RORAIMA 2 ABSTRACT This work was aimed at evaluating the physiological characteristics of cowpea cultivars under irrigation in the Savannah of Roraima. The experiment was carried out from February to April 2012, at the Agua Boa Experimental Station, which belongs to Embrapa Roraima, under no till system and sprinkler irrigation. The experiment used a statistical, strip-split-plot, randomized block design with four treatments, three treatments in the subplots, and five replications. Four water depths (30%, 60%, 90% and 120% of the reference evapotranspiration – ETo) and three cowpea cultivars (BRS Guariba, BRS Novaera and BRS Pajeú) were tested. The irrigation levels were based on fractions of daily ETo, estimated with a Class A evaporation pan, installed near the experimental area, adopting the pan coefficient (Kt) 0.75. The evaluated parameters were plant height, shoot dry mass and leaf area index. The data were submitted to analysis of variance with the F-test (p<0.05). The means for the cultivars were compared by Tukey’s test, and the means for irrigation water depths, by polynomial regression and by the T-test (p<0.05). All the analyzed parameters were directly proportional to the increase of the irrigation water depths. The cultivar BRS Pajeú showed a quadratic effect, with maximum efficiency in shoot dry matter production at a water depth of 106.84% ETo (SDM =30 g, with317.75 mm), and maximum leaf area index with 89.31% ETo (LAI = 2.74, with265.62 mm). Keywords: Vigna unguiculata. Savanah of Roraima. No-tillage cropping system.

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Occurrence and feeding preference of Diabrotica speciosa Germar and Cerotoma arcuata (Olivier) for different cultivars of cowpea Vigna unguiculata (Linnaeus) Walpers

EntomoBrasilis ◽

10.12741/ebrasilis.v12i3.855 ◽

2019 ◽

Vol 12 (3) ◽

pp. 103-107

Author(s):

Danival José De Souza ◽

Julner Pachoute

Keyword(s):

Vigna Unguiculata ◽

Leaf Disc ◽

Feeding Preference ◽

Environmental Costs ◽

Cowpea Cultivars ◽

Significant Difference ◽

Diabrotica Speciosa ◽

Species Being ◽

Leaf Disc Assay ◽

Disc Assay

Abstract. Chrysomelid pests are not only known as leaf-feeding in beans but as vectors of viruses too. Chemical control is most commonly used but has high economic and environmental costs. This study aimed to report the occurrence of chrysomelid pests on cowpea area in the State of Tocantins and compare the feeding preference of the species collected in different cowpea cultivars. Weekly monitoring was carried out in cowpea stand at the experimental station of the Federal University of Tocantins, in Gurupi-TO. Insect feeding preference was evaluated under laboratory conditions (25 ± 2 °C, 60 ± 5% R.H.). A total of 1,542 adults of two species of chrysomelid pests was recorded: Cerotoma arcuata (Olivier) presented 71.49% and Diabrotica speciosa Germar, 28.51%. Leaf discs of the cultivars BRS "Tumucumaque"," BRS "Nova Era", BRS "Sempre Verde", and "Pingo de Ouro", were offered to adult beetles. It was observed a significant difference in no-choice leaf disc assays and four-choice leaf disc assays for the D. speciosa species, being BRS "Tumucumaque" the most consumed. In the no-choice leaf disc assay "Pingo de Ouro" was less consumed and showed non-preference type resistance. In the four-choice leaf disc assay, BRS Sempre Verde was more resistant to D. speciosa consumption. In both tests, C. arcuata did not show a significant difference among the tested cultivars, but mathematically, BRS "Nova Era" was the most consumed, while "Pingo de Ouro" the lowest consumed and showed non-preferred resistance in both tests. Cerotoma arcuata stood out as greater defoliant than D. speciosa in all cultivars tested.Ocorrência e preferência alimentar de Diabrotica speciosa Germar e Cerotoma arcuata (Olivier) por diferentes cultivares de feijão caupi Vigna unguiculata (Linnaeus) WalpersResumo. Crisomelídeos pragas não são apenas desfolhadores do feijoeiro, mas atuam também como vetores de viroses. O método de controle mais utilizado é o químico, o que acarreta altos custos econômicos e ambientais. Este trabalho objetivou registrar a ocorrência de crisomelídeos pragas em cultivo de feijão-caupi no estado do Tocantins, bem como comparar a preferência alimentar das espécies coletadas por diferentes cultivares. Foi realizado monitoramento semanal na área de feijão-caupi da estação experimental da Universidade Federal do Tocantins em Gurupi-TO. Foram registrados 1.542 adultos de duas espécies de crisomelídeos pragas: Cerotoma arcuata (Olivier)apresentou 71,49% e Diabrotica speciosa Germar, 28,51%. Em condições de laboratório, discos foliares das cultivares BRS "Tumucumaque", BRS "Nova Era", BRS "Sempre Verde" e "Pingo de Ouro" foram oferecidos a insetos adultos para testar sua preferência alimentar. Foi observada diferença significativa nos ensaios sem chance e com chance de escolha para espécie de D. speciosa, sendo o BRS "Tumucumaque" o mais consumido. Nos ensaios sem chance de escolha, "Pingo de Ouro" foi menos consumido e apresentou resistência do tipo não preferência. Nos ensaios com chance de escolha, o cultivar BRS "Sempre Verde" foi mais resistente ao consumo de D. speciosa. Em ambos os testes, C. arcuata não apresentou diferença significativa na preferência pelos quatro cultivares, embora BRS "Nova Era" tenha sido mais consumido em valores absolutos, enquanto "Pingo de Ouro" foi menos desfolhado apresentando resistência de tipo não preferência nos dois testes. Cerotoma arcuata destacou-se como maior desfolhador do que D. speciosa em todas os cultivares testados.

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The possible regulatory mechanisms of aqueous, ethyl acetate and nhexane fractions of the Ribes khorassanicum extract on acute hypertension in rats

Endocrine Metabolic & Immune Disorders - Drug Targets ◽

10.2174/1871530320666201104114609 ◽

2020 ◽

Vol 20 ◽

Author(s):

Reza Mohebbati ◽

Yasamin Kamkar-De ◽

Mohammad Naser Shafei

Keyword(s):

Ethyl Acetate ◽

Antihypertensive Effect ◽

Cardiovascular Responses ◽

Regulatory Mechanisms ◽

Hypertensive Rats ◽

Control Groups ◽

Acute Hypertension ◽

The North ◽

Significant Difference ◽

And Control

Objective: Our previous studies showed the antihypertensive effect of Ribes khorassanicum (R. khorassanicum), a medicinal herb growing in the North Khorasan Province of Iran. For further evaluation, the present study investigated the effect of n-hexane (HX), ethyl acetate (EA), and aqueous (AQ) fractions of hydroalcoholic R. khorassanicum extract on cardiovascular responses in angiotensin II (AngII) and NG-nitro-L-arginine methyl ester (L-NAME) hypertensive rats. Methods: Wistar rats were randomly divided into 11 groups (n=5): 1) control, 2) AngII (50 ng/kg, i.v), 3) AngII + losartan (10 mg/kg, i.p), 4) L-NAME (10 mg/kg, i.v), 5) L-NAME+ sodium nitroprusside (SNP) (50 mg/kg, i.p), 6,7,8) one dose of each fraction of R. khorassanicum (AQ/EA/HX (50 mg/kg, i.p)) +AngII, and 9,10,11) one dose of each fraction of R. khorassanicum (AQ/EA/HX (50 mg/kg, i.p)) + L-NAME. Treated rats received three fractions 30 min before the injection of L-NAME and AngII in separate groups. The cardiovascular parameters were recorded by the Power Lab instrument via an angiocath inserted into the femoral artery. The peak changes (∆) of mean arterial pressure (MAP), systolic blood pressure (SBP), and heart rate (HR) in treated groups were compared with those of the hypertensive and control groups. Result: AngII and L-NAME significantly increased ∆MAP and ∆SBP and attenuated by pretreatment of LOS and SNP, respectively. Pretreatment with polar (AQ) and semipolar (EA) fractions of R. khorassanicum reduced the peak changes of MAP and SBP in both AngII and L-NAME-treated groups. Only the fraction of the herb attenuated the HR increased in the L-NAME group. The HR in other groups did not demonstrate any significant difference. Conclusion: All fractions of R. khorassanicum have an antihypertensive effect. However, the effect of polar fractions is more salient. It is also conceivable that the antihypertensive effect of fractions is mostly mediated by the inhibition of AngII.

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Genome-wide SNPs redefines species boundaries and conservation units in the freshwater mussel genus Cyprogenia of North America

Scientific Reports ◽

10.1038/s41598-021-90325-0 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Kyung Seok Kim ◽

Kevin J. Roe

Keyword(s):

Phylogenetic Analyses ◽

Freshwater Mussel ◽

Conservation Strategies ◽

Nucleotide Polymorphisms ◽

Conservation Units ◽

Genetic Structuring ◽

The North ◽

Snp Data ◽

Genome Wide ◽

Significant Difference

AbstractDetailed information on species delineation and population genetic structure is a prerequisite for designing effective restoration and conservation strategies for imperiled organisms. Phylogenomic and population genomic analyses based on genome-wide double digest restriction-site associated DNA sequencing (ddRAD-Seq) data has identified three allopatric lineages in the North American freshwater mussel genus Cyprogenia. Cyprogenia stegaria is restricted to the Eastern Highlands and displays little genetic structuring within this region. However, two allopatric lineages of C. aberti in the Ozark and Ouachita highlands exhibit substantial levels (mean uncorrected FST = 0.368) of genetic differentiation and each warrants recognition as a distinct evolutionary lineage. Lineages of Cyprogenia in the Ouachita and Ozark highlands are further subdivided reflecting structuring at the level of river systems. Species tree inference and species delimitation in a Bayesian framework using single nucleotide polymorphisms (SNP) data supported results from phylogenetic analyses, and supports three species of Cyprogenia over the currently recognized two species. A comparison of SNPs generated from both destructively and non-destructively collected samples revealed no significant difference in the SNP error rate, quality and amount of ddRAD sequence reads, indicating that nondestructive or trace samples can be effectively utilized to generate SNP data for organisms for which destructive sampling is not permitted.

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Perceived quality of care among people with type 2 diabetes mellitus in the north east region of peninsular Malaysia

BMC Public Health ◽

10.1186/s12889-021-10320-y ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Noorfariza Nordin ◽

Suhaily Mohd Hairon ◽

Najib Majdi Yaacob ◽

Anees Abdul Hamid ◽

Seoparjoo Azmel Mohd Isa ◽

...

Keyword(s):

Quality Of Care ◽

Perceived Quality ◽

Peninsular Malaysia ◽

North East ◽

The North ◽

East Region ◽

Perceived Quality Of Care ◽

Significant Difference

Abstract Background People with type 2 diabetes mellitus (T2DM) are best managed by a chronic care model that is associated with enhanced quality of care and improved patient outcome. Assessing patients’ perceived quality of care is crucial in improving the healthcare delivery system. Hence, this study determined the perceived quality of care among people with T2DM and explored its associations with (i) sociodemographic and clinical characteristics and (ii) types of healthcare clinics to guide future planning. Methods A cross-sectional study involving 20 primary healthcare clinics in the North East Region of Peninsular Malaysia and people with T2DM as the sampling unit was conducted from February to May 2019. The pro forma checklist, interview-guided Skala Kepuasan Interaksi Perubatan-11, and Patient Assessment of Chronic Illness Care (Malay version; PACIC-M) questionnaire were used for data collection. Univariate analysis and linear regression were used to determine the status of perceived quality of care and the factors associated with the perceived quality of care, respectively. Results Overall, data from 772 participants were analyzed. The majority was from the Malay ethnic group (95.6%) with a mean (standard deviation [SD]) glycated hemoglobin A1c (HbA1c) level of 8.91% (2.30). The median (interquartile range [IQR]) of the number of medical officers available at each clinic was 6 (7), with Family Doctor Concept (FDC) clinics having a higher number of medical officers than non-FDC clinics (p = 0.001). The overall mean (SD) PACIC-M score was 2.65 (0.54) with no significant difference between scores of patients treated in the two clinic types (p = 0.806). Higher perceived quality of care was associated with lower number of medical officers (adjusted regression coefficient [Adj.β], − 0.021; p-value [p], 0.001), and greater doctor–patient interaction in all domains: distress relief (Adj.β, 0.033; p, < 0.001), rapport (Adj.β, 0.056; p, < 0.001), and interaction outcome (Adj.β, 0.022; p, 0.003). Conclusion Although there was no significant difference found between clinic type, this study reflects that patients are comfortable when managed by the same doctor, which may support a better doctor-patient interaction. A larger specialized primary care workforce could improve diabetes care in Malaysia.

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An Investigation into the Impact of Environmental Education Certification on Perceptions of Personal Teaching Efficacy

Journal of Interpretation Research ◽

10.1177/109258721702200202 ◽

2017 ◽

Vol 22 (2) ◽

pp. 5-17

Author(s):

Mandy Harrison ◽

Lisa Gross ◽

Jennifer McGee

Keyword(s):

North Carolina ◽

Environmental Education ◽

Self Efficacy ◽

Teaching Efficacy ◽

School Teachers ◽

The North ◽

Significant Difference ◽

Personal Teaching Efficacy ◽

Environmental Educators ◽

The Impact

The purpose of this study is to examine how participation in the North Carolina Environmental Educator (NCEE) program influences the individual's perceived self-efficacy. Specifically, this study examines the impact of NCEE certification on participants’ perceived personal teaching self-efficacy. This study compared personal teaching efficacy scores of certified environmental educators, non-certified environmental educators, and licensed schoolteachers. The study found significant differences in teaching efficacy between certified and non-certified environmental educators, as well as certified environmental educators and licensed school teachers. In addition, the study found no significant difference in efficacy scores between NCEE certified licensed school teachers and NCEE certified environmental educators. Results of this study indicate a link between environmental education certification and higher personal teaching efficacy.

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Intrinsic and extrinsic sources of variation in the diets of harp and hooded seals revealed by fatty acid profiles

Canadian Journal of Zoology ◽

10.1139/z08-145 ◽

2009 ◽

Vol 87 (2) ◽

pp. 139-151 ◽

Cited By ~ 17

Author(s):

Strahan Tucker ◽

W. Don Bowen ◽

Sara J. Iverson ◽

Garry B. Stenson

Keyword(s):

Fatty Acid ◽

North Atlantic Ocean ◽

Geographic Location ◽

Deep Ocean ◽

Resource Polymorphism ◽

The North ◽

Pagophilus Groenlandicus ◽

Ontogenetic Niche Shifts ◽

Significant Difference ◽

Sources Of Variation

Individuals of different age, sex, and morphology are expected to exhibit differences in dietary niches largely owing to sexual dimorphism, ontogenetic niche shifts, and resource polymorphism. Harp ( Pagophilus groenlandicus (Erxleben, 1777)) and hooded ( Cystophora cristata (Erxleben, 1777)) seals are geographically overlapping and highly migratory predators in the North Atlantic Ocean. These species differ in their diving behaviour, with hooded seals diving deeper, longer, and more associated with the continental shelf edge and deep ocean than harp seals. We examined blubber fatty acid (FA) composition (N = 37; 93% of total FA by mass) of harp (adults N = 294; juveniles N = 232) and hooded (adults N = 118; juveniles N = 38) seals to test hypotheses about sources of intrinsic (age and sex) and extrinsic (geographic location, season, year) variations in diets. A significant difference in FA profiles suggested dietary segregation between species. We found significant effects of sex and age class on FA profiles, with these being more pronounced in the highly size-dimorphic hooded seals than in harp seals. FA profiles of both species also varied between inshore and offshore sampling locations and between prebreeding and postbreeding periods. Finally, FA profiles of harp seals differed among years, which was coincident with large changes in prey distribution and availability in the mid-1990s.

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Temporal distribution and population structure of two congeneric species ofCucullanus(Nematoda: Cucullanidae) inOrthopristis ruberin Venezuela

Journal of Helminthology ◽

10.1017/s0022149x08873567 ◽

2008 ◽

Vol 82 (1) ◽

pp. 69-76 ◽

Cited By ~ 1

Author(s):

A.K. Bashirullah ◽

M.T. Diaz

Keyword(s):

Temporal Distribution ◽

Caribbean Sea ◽

Congeneric Species ◽

Mean Intensity ◽

Qualitative And Quantitative ◽

The North ◽

Significant Difference ◽

The Caribbean ◽

Over Exploitation ◽

Fish Hosts

AbstractThe qualitative and quantitative parameters of temporal distribution ofCucullanus tripapillatusandCucullanus chrysophrydesin the intestine ofOrthopristis ruberin the Caribbean Sea on the north of Margarita Island, Venezuela were analysed. A total of 540 fish were collected at random from the catch of commercial trawlers during 1982–83 and 1992–93. Both species ofCucullanuswere found throughout the year; prevalence and mean intensity ofC. tripapillatuswere higher than that ofC. chrysophrydes. A significant difference was found in infection between the two years of sampling. Female worms were more abundant than male in both years. Both species exhibited pronounced prevalence and maturity in September and March of each year, indicating seasonality. The patterns of occurrence of the two species ofCucullanusinO. ruberdid not change in the 10-year interval but the host size and number of parasites declined, which may be due to over-exploitation of definitive fish hosts.

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Aphelenchoides besseyi parasitizing cowpea (Vigna unguiculata) in Brazil

Plant Disease ◽

10.1094/pdis-06-21-1232-sc ◽

2021 ◽

Author(s):

Luciany Favoreto ◽

Rafaela Bueno ◽

Angélica Calandrelli ◽

Patrícia Priscila França ◽

Mauricio Conrado Meyer ◽

...

Keyword(s):

Common Bean ◽

Vigna Unguiculata ◽

Host Reaction ◽

First Report ◽

Cowpea Cultivars ◽

The World ◽

Cotton Plants ◽

Aphelenchoides Besseyi ◽

Leaf Deformation

Several species of nematodes are known to cause losses to cowpea (Vigna unguiculata) throughout the world. In Brazil, Aphelenchoides besseyi was recently described causing damages on soybean, cotton, and common bean, but no report was found about the parasitism of this nematode in cowpea. The present study aimed to verify the host reaction of cowpea cultivars to A. besseyi. The experiment was conducted under greenhouse conditions, using as inoculum two A. besseyi populations, obtained from symptomatic soybean and cotton plants collected in naturally infested fields. Cultivars ‘Imponente’, ‘Aracê’, ‘Guariba’, ‘Tumucumaque’, ‘Nova Era’, and ‘Tracuateua’ were inoculated with 500 A. besseyi of each population, separately, into soil and after 30 days from the inoculation nematodes were extracted from shoot systems. Both populations were able to parasitize all the cowpea cultivars. Independently of the cultivar, cowpea plants exhibited symptoms of leaf deformation similar to those described for soybean, cotton, and common bean and, in addition, severe brooming was observed and the interior of the stems was porous and necrotic. To our knowledge, this is the first report of parasitism by A. besseyi of cowpea in Brazil, under greenhouse conditions, increasing the list of hosts of this nematode.

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Abstract 221: Use of Statins in Patients with Coronary Artery Aneurysms: A Pilot Study from the North American Kawasaki Disease Registry

Circulation ◽

10.1161/circ.131.suppl_2.221 ◽

2015 ◽

Vol 131 (suppl_2) ◽

Author(s):

Michael Khoury ◽

Michael A Portman ◽

Cedric Manlhiot ◽

Anne Fournier ◽

Rejane F Dillenburg ◽

...

Keyword(s):

Coronary Artery ◽

Pilot Study ◽

Kawasaki Disease ◽

Linear Regression ◽

North American ◽

Z Score ◽

Disease Registry ◽

Coronary Artery Aneurysms ◽

The North ◽

Significant Difference

Background: Statins have been considered as therapy for children with coronary artery aneurysms (CAA) after Kawasaki disease (KD), due to potential beneficial pleiotropic effects which might influence chronic vascular processes and inflammation. Methods: The North American Kawasaki Disease Registry was queried to identify patients who have received statins in the first 6 months following the convalescent phase of KD. Each identified patient was matched by age, gender and CAA z score to 3 patients who were statin-naïve (controls). Linear regression models adjusted for repeated measures and maximum coronary involvement were used to determine an association of statin use with longitudinal changes in coronary artery diameter z-score. Kaplan-Meier analysis was used to compare freedom from angiographically-confirmed stenosis or interventions. Results: Of 29 patients with KD and CAA (maximum coronary artery z-score >10) who received statins at any time (of n=621, 5%), 10 (9 males) patients were started within 6 months of the acute KD episode. The mean age at KD was 6.3±3.4 years (5.4±3.5 for controls, p=0.57). Mean maximum CAA z-score was 36±14 (vs. 29±16, p=0.20); 90% of statin patients and 87% of matched controls had CAAs in 3 or more branches. Linear regression analysis of 442 serial echocardiograms showed that maximum CAA z-score decreased by -1.5 (95%CI: -2.7; -0.4) SD/year (p=0.008) for control patients compared to -2.9 (95%CI: -4.4; -1.4) SD/year (p<0.001) for statin treated patients. The difference between the rate of change of CAA z-score for statin vs. control patients did not reach statistical significance (controls vs. statins: +1.4 SD/year, 95%CI: -0.6; +3.4, p=0.18). n=7 patients (3 on statin, 4 controls) developed stenosis or had revascularization, with no significant difference between groups (HR for statin group: 2.2 (0.4-11.4), p=0.41). Conclusions: This underpowered pilot study suggests that equipoise likely exists with regards to statin therapy in children with KD and CAA, and that a formal registry-nested trial might be considered.

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