Academic literature on the topic 'Isaria sp'

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Journal articles on the topic "Isaria sp"

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Nguyen Dinh, Viet, Van Nguyen Thi Thuy, Lam Truong Xuan, and Lam Duong Minh. "Morphological and molecular characteristics of Isaria at Xuan Son National Park and Copia Nature Reserve." Journal of Science Natural Science 66, no. 1 (March 2021): 134–45. http://dx.doi.org/10.18173/2354-1059.2021-0017.

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The fungal genus Isaria includes important entomopathogenic species, which account for a large number of species of the Cordycipitaceae. Currently, Isaria species have been found in all continents of the Earth with 284 species described but 72 species were widely accepted, and with many applications in pharmacy and agriculture. There have been 11 Isaria species recorded in Vietnam. In our study at Copia Nature Reserve, Son La province and Xuan Son National Park, Phu Tho province, 51 fungal samples were collected on Lepidoptera and Coleoptera larvae, of which 5 fungal samples belonged to the Isaria genus. Based on morphological and molecular characteristics, the samples were identified to Isaria cicadae, I. fumosorosea, I. tenuipes and I. amoene-rosea. Further studies are needed to clarify Isaria sp. XS97 identification.
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Lima, Maria do Carmo Silva, Luan dos Santos Marvão, Telma Fátima Vieira Batista, Luiz Augusto Silva de Sousa, Matheus Gabriel Lopes Botelho, Layse Gomes Furtado, Vanessa de Almeida Batista, et al. "Manejo de ácaros tetraniquídeos em rosa do deserto (Adenium obesum Forssk. Roem. & Schult) com fungos entomopatogênicos." Research, Society and Development 9, no. 8 (August 3, 2020): e956986324. http://dx.doi.org/10.33448/rsd-v9i8.6324.

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Objetivou-se avaliar a eficiência dos fungos entomopatogênicos Isaria sp. e Beauveria sp. no controle dos ácaros em viveiro comercial localizado na Ilha de Mosqueiro, Belém-PA. O experimento foi realizado com a escolha ao acaso de 36 plantas de A. obesum com características de infestação de ácaros. Os procedimentos metodológicos foram baseados numa análise quali-quantitativa para os dados coletados. O bioensaio constou de 4 tratamentos com 8 repetições, com delineamento inteiramente casualizado. Os tratamentos foram aplicados sobre as plantas até o ponto de escorrimento. Os resultados obtidos foram eficientes no controle dos ácaros nas plantas de rosa do deserto, demonstrando que os fungos Beauveria sp e Isaria sp. possuem alta capacidade de controle da praga, superiores ao controle com acaricida químico, tratamento padrão. Portanto, os fungos Isaria sp. e Beauveria sp. são eficazes no monitoramento de ácaros em rosas do deserto (Adenium obesum Forssk. Roem. & Schult), viabilizando ao comércio de plantas ornamentais um método ecologicamente correto ao uso sucessivo dos acaricidas químicos, que podem provocar resistência aos ácaros e ocasionar impactos negativos ao homem e ao meio ambiente.
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Lorencetti, Grasielle Adriane Toscan, Michele Potrich, Sergio Miguel Mazaro, Everton Ricardi Lozano, Leonardo Rodrigues Barbosa, Marta Juliana Schmatz Menezes, and Thiago Evandro Gonçalves. "EFICIÊNCIA DE Beauveria bassiana VUILL. E Isaria sp. PARA O CONTROLE DE Thaumastocoris peregrinus CARPINTERO & DELLAPÉ (HEMIPTERA: THAUMASTOCORIDAE)." Ciência Florestal 28, no. 1 (April 2, 2018): 403. http://dx.doi.org/10.5902/1980509831612.

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A busca por informações para o controle de Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) em Eucalyptus concentra-se no uso de técnicas de controle biológico, entre elas, o uso de fungos entomopatogênicos. Assim, o objetivo deste trabalho, foi avaliar a patogenicidade de isolados de Beauveria bassiana e Isaria sp. sobre Thaumastocoris peregrinus em condições de laboratório. Para isto, foram testados quatro isolados de Beauveria bassiana e um isolado de Isaria sp. na concentração de 1,0 × 108 conídios.mL-1. A solução foi aplicada sobre folhas de Eucalyptus camaldulensis, fornecidas como substrato de alimentação aos insetos, e mantidas em frascos de vidro vedados com filme plástico em câmara climatizada (26 ± 2°C, 14 h de fotofase e U.R. de 70 ± 10%). Foram realizadas quatro repetições (frascos) por isolado com 13 insetos adultos por frasco. As avaliações foram realizadas até o quinto dia após a aplicação. Os insetos mortos foram colocados em câmara úmida para a confirmação da morte pelo patógeno. Todos os isolados foram patogênicos a Thaumastocoris peregrinus. A mortalidade confirmada variou entre 37% e 80,1% para Beauveria bassiana, e foi de 87% para Isaria sp. após 10 dias da aplicação. O maior percentual médio de mortalidade diária (39,9%) ocorreu no quarto dia após o contato do inseto com o substrato pulverizado. Os isolados de Beauveria bassiana e de Isaria sp. avaliados apresentam potencial para o controle de Thaumastocoris peregrinus em laboratório.
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Yahagi, Hiroaki, Tadahiro Yahagi, Megumi Furukawa, and Keiichi Matsuzaki. "Antiproliferative and Antimigration Activities of Beauvericin Isolated from Isaria sp. on Pancreatic Cancer Cells." Molecules 25, no. 19 (October 8, 2020): 4586. http://dx.doi.org/10.3390/molecules25194586.

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This study describes the antiproliferative and antimigration effects of beauvericin from a culture broth of Isaria sp. in human pancreatic cancer cells (PANC-1). Activity-guided fractionation of the EtOAc extract of cultured broth of Isaria sp. RD055140 afforded beauvericin (1), a new isariotin derivative, 7-O-methylisariotin C (2), together with the known isariotin analogs, TK-57-164A (3) and B (4). As a result of the measurement of the cell viability, 1 inhibited cell growth (IC50 = 4.8 µM) of PANC-1 cells. Furthermore, 1 was found to inhibit the migration activity of PANC-1 cells by upregulating the expression of the E-cadherin gene and reducing N-cadherin and Snail genes in a dose-dependent manner (0.1–1 µM). These activities of 1 had lower concentrations than the cytotoxic activity. These findings suggest that 1 can be used as an anticancer agent against human pancreatic carcinoma.
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CHEN, WAN-HAO, CHANG LIU, YAN-FENG HAN, JIAN-DONG LIANG, and ZONG-QI LIANG. "Akanthomyces araneogenum, a new Isaria-like araneogenous species." Phytotaxa 379, no. 1 (November 27, 2018): 66. http://dx.doi.org/10.11646/phytotaxa.379.1.6.

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During a survey of araneogenous fungi from Guizhou Province, China, a new species, Akanthomyces araneogenum, was isolated from a spider, Araneus sp. It differs from other Akanthomyces species by its spider host, Isaria-like conidiogenous structure, and mostly globose and smaller conidia (1.6–2.2 μm). Multi-locus (ITS, LSU, RPB1, RPB2 and TEF) phylogenetic analysis confirmed that A. araneogenum is distinct from other species. The new species is formally described and illustrated, and compared with similar species.
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Ueda, Jun-ya, Tatsuki Kunoh, Masayuki Sekigawa, Shu-ichi Wada, Yukio Mukai, Shinji Ohta, Ryuzo Sasaki, Tamio Mizukami, Motoki Takagi, and Kazuo Shin-ya. "JBIR-14, a highly oxygenated ergostane, from Isaria sp. NBRC 104353." Journal of Antibiotics 63, no. 3 (January 22, 2010): 139–41. http://dx.doi.org/10.1038/ja.2010.3.

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Sendoya-Corrales, Carlos Andrés, and Alex Enrique Bustillo-Pardey. "Enemigos naturales de Stenoma cecropia (Lepidoptera: Elachistidae) en palma de aceite, en el suroccidente de Colombia." Revista Colombiana de Entomología 42, no. 2 (December 31, 2016): 146. http://dx.doi.org/10.25100/socolen.v42i2.6685.

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Stenoma cecropia infesta las nuevas siembras del híbrido interespecífico (Elaeis oleifera x E. guineensis) de palma de aceite en la zona de Tumaco (Nariño). Sus infestaciones afectan grandes extensiones de palma y causan defoliaciones de importancia económica. Por tal motivo, el objetivo de este trabajo fue determinar los factores bióticos y abióticos que afectan las poblaciones de la plaga a través de muestreos secuenciales quincenales, siguiendo un sistema móvil de desplazamiento 2 x 2, que consistió en realizar un muestreo cada dos palmas y cada dos líneas, en una hectárea de palma de aceite, contabilizando el número de individuos vivos y muertos de S. cecropia presentes en la hoja 17 y 25 de cada palma evaluada. Los resultados indican que S. cecropia es atacada por una diversidad de depredadores, parasitoides y entomopatógenos. Entre los primeros se encuentran las arañas (Araneae), chinches (Reduviidae), avispas (Vespidae) y hormigas (Formicidae), destacándose el género Crematogaster. Se encontró que Brachymeria sp. y Rhysipolis sp., fueron los parasitoides más frecuentes. Estas especies requieren del néctar de plantas como: Melanthera aspera, Solanum quitoense, Emilia sonchifolia, Lantana camara, Cassia reticulata, Stachytarpheta cayennensis y Urena lobata, para su alimentación. También se colectaron larvas de S. cecropia infectadas por el hongo Isaria sp. Al estimar el efecto de estos controladores biológicos sobre las poblaciones de S. cecropia, se encontró que la depredación de la hormiga Crematogaster sp., sobre larvas de S. cecropia fue de 42,0 %. El parasitismo causado por Brachymeria sp., a las pupas fue de 16,8 %, la mortalidad causada por Rhysipolis sp., sobre el estado larval fue de 3,5 % y el efecto de Isaria sp., fue de 1,5 %. Se concluye que estos controladores biológicos son importantes en la regulación de las poblaciones de S. cecropia en el cultivo de la palma de aceite en Colombia.
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Ueda, Jun-ya, Tatsuki Kunoh, Masayuki Sekigawa, Shu-ichi Wada, Yukio Mukai, Shinji Ohta, Ryuzo Sasaki, Tamio Mizukami, Motoki Takagi, and Kazuo Shin-ya. "ChemInform Abstract: JBIR-14, a Highly Oxygenated Ergostane, from Isaria sp. NBRC 104353." ChemInform 41, no. 31 (July 9, 2010): no. http://dx.doi.org/10.1002/chin.201031197.

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Angelo, Isabele C., Éverton K. K. Fernandes, Thiago C. Bahiense, Wendell M. S. Perinotto, Patricia S. Golo, Ana Paula R. Moraes, and Vânia R. E. P. Bittencourt. "Virulence of Isaria sp. and Purpureocillium lilacinum to Rhipicephalus microplus tick under laboratory conditions." Parasitology Research 111, no. 4 (June 19, 2012): 1473–80. http://dx.doi.org/10.1007/s00436-012-2982-y.

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González Baca, Guadalupe, Crystian Sadiel Venegas Barrera, Othon Javier González Gaona, Haidel Vargas Madriz, Marco Aurelio Jiménez Gómez, Edgar Pérez Arriaga, and Ausencio Domínguez Azuara. "Abundancia y distribución de hongos entomopatógenos en diferentes localidades y ambientes del sur de Tamaulipas." Revista Mexicana de Ciencias Agrícolas 10, no. 3 (May 14, 2019): 669–81. http://dx.doi.org/10.29312/remexca.v10i3.1550.

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Con el fin de generar un registro de los hongos entomopatógenos con el potencial para el control de insectos plaga en el área agrícola del estado de Tamaulipas. En este estudio se cuantificó la abundancia y determinó la distribución de los hongos entomopatógenos en diferentes localidades y ambientes del sur de Tamaulipas, México. En 2016, los hongos entomopatógenos fueron recolectados en la Brecha de Corpus Christi, Villa Cuauhtémoc, Esteros y Miradores. En cada localidad se seleccionaron los siguientes ambientes: parcelas cultivadas con gramíneas (sorgo y maíz), fabáceas (soya, frijol y jícama), árboles frutales (limón, papaya, litche, mango y naranja), hortalizas (cebolla, chile, tomate y acelga) y parcelas sin cultivar (ambiente natural). En cada ambiente se recolectaron muestras de suelo. Posteriormente, en el suelo recolectado, se trampearon a los hongos entomopatógenos con larvas de Tenebrio molitor L. En total, se recolectaron 134 aislados de los géneros: Beauveria sp., Lecanicillium sp., Metarhizium sp., Paecilomyces sp., Trichoderma sp. e Isaria sp. De los cuales, Beauveria sp. presentó la mayor abundancia y distribución. Mientras que, los otros géneros fueron recolectados en localidades y ambientes específicos. Este resultado indica la posibilidad de que los géneros de los hongos encontrados estén fuertemente adaptados a los factores bióticos y abióticos del ambiente.
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Dissertations / Theses on the topic "Isaria sp"

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Evangelista, Thatiane Aparecida. "Controle biol?gico de Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) com fungos entomopatog?nicos de Beauveria bassiana, Metarhizium anisopliae e Isaria sp." UFVJM, 2016. http://acervo.ufvjm.edu.br/jspui/handle/1/1094.

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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)
Thaumastocoris peregrinus foi detectado no Brasil em 2008 e se disseminou pelos plantios florestais brasileiros de tal forma que, rapidamente, atingiu o n?vel de dano econ?mico e causou muitos preju?zos aos produtores. Por n?o haver nenhum m?todo de controle definido, utilizaram-se de pulveriza??es com inseticidas qu?micos para o controle desse inseto. No entanto, devido ao processo de certifica??o florestal, esse m?todo de controle foi rapidamente proibido. Assim, o controle biol?gico tem sido apontado como o mais adequado ao controle at? que se consiga gen?tipos resistentes. O uso de fungos entomopatog?nicos ? apontado como uma das melhores maneiras de controle do percevejo bronzeado devido o seu baixo impacto ambiental, dentre outras vantagens. Logo, objetivou-se selecionar isolados de Metarhizium anisopliae, Isaria fumosorosea, Isaria farinosa e Beauveria bassiana com potencial para o controle dessa praga. Em condi??es controladas testaram-se diferentes concentra??es (controle, 104, 106 e 108 esporos por ml) em indiv?duos adultos de T. peregrinus, em cinco repeti??es. Os indiv?duos foram mantidos em placas de Petri sobre partes de folhas (4 cm de di?metro) previamente inoculadas com a suspens?o de esporos. Os tratamentos foram avaliados diariamente quanto a mortalidade e os dados submetidos ? an?lise estat?stica. Considerou-se patog?nico o isolado cujo percentual de mortalidade sobre T. peregrinus foi igual ou superior a 80%. Na maior concentra??o todos os isolados de B. bassiana registraram mortalidade superior a 85%. No entanto, pelos testes de m?dia, alguns isolados se destacaram, tais como IBCB63 de Beauveria bassiana, IBCB159 de Metarhizium anisopliae, IBCB130 de Isaria fumosorosea e CG195 de Isaria farinosa. Assim constatou-se que, em laborat?rio, ? poss?vel o controle eficaz dessa praga por meio do uso de fungos entomopatog?nicos e que existem diferentes isolados, dentre as esp?cies testadas, com potencial de uso. Essa diversidade de isolados aptos ao controle ? importante devido ao processo de sele??o natural que leva ao aparecimento de insetos resistentes. Em um futuro uso, esses isolados poder?o ser intercalados e inibir ou retardar a ocorr?ncia desses indiv?duos.
Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016.
Thaumastocoris peregrinus was detected in Brazil in 2008 and spread by Brazilian forest plantations such a way that quickly reached the level of economic damage and caused many losses to producers. Because there is no defined control method, pulverizations with chemical insecticides were used to control this insect. However, due to the forest certification process, this method of control was quickly banned. Thus, biological control has been touted as the most suitable control method, until the identification of resistant genotypes. The use of entomopathogenic fungi is considered one of the best ways to control the bronze bug due to its low environmental impact, among other advantages. Therefore, this study aimed to select isolates of Metarhizium anisopliae, Isaria fumosorosea, Isaria farinosa and Beauveria bassiana with potential to control this pest. Under controlled conditions, different concentrations were tested (control, 104, 106 and 108 spores per ml) in adults of T. peregrinus in five replicates. The individuals were kept on Petri dishes over parts of leaves (diameter 4 cm) that were previously inoculated with the spore suspension. The treatments were evaluated daily for mortality and the data analyzed statistically. The isolate whose mortality percentage of T. peregrinus was equal or higher than 80% was considered pathogenic. At higher concentration, all the isolates of B. bassiana reported mortalities greater than 85%. However, the mean tests demonstrated that some isolates stood out, such as IBCB63 of Beauveria bassiana, IBCB159 of Metarhizium anisopliae, IBCB130 of Isaria fumosorosea and CG195 of Isaria farinosa. It was found that in laboratorial conditions, it is possible to control effectively this pest through the use of entomopathogenic fungi, and that there are different isolates with potential use among the species tested. This diversity of isolates able to the control it is important because of the natural selection process that leads to the onset of resistant insects. In a further use, these isolates can be interleaved and inhibit or delay the occurrence of these individuals.
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Oliveira, Ginarajadaça Ferreira dos Santos. "Controle biológico de Nasutitermes corniger (Motschulsky) (Isoptera:Termitidade) por fungos entomopatogenicos: Metarhizium anisopliae (Metschnikoff) (Sorokin), Beauveria bassiana (Balssamo) (Vuillemim), Isaria javanica (Frieder e Bally) e Penicillium sp. (Fleming) no Amazonas." Universidade Federal do Amazonas, 2011. http://tede.ufam.edu.br/handle/tede/4368.

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FAPEAM - Fundação de Amparo à Pesquisa do Estado do Amazonas
Termites are eusocial insects of the Isoptera order. They are best known for its economic importance as pests, causing damage in urban areas, countryside, especially in sugarcane fields, pastureland and forests. Biological control with entomopathogenic fungi have been shown to be a viable option not compromising the handler and does not have any harmful effects on animals, as may occur when chemicals is used. This work aimed to analyze four species of fungi biologically active against termite Nasutitermes corniger and seek new sources of inoculums production, seeking the development of a product for biological control of termites in the Amazonas State. The bioassay in vitro, conidia were produced, quantified and inoculated. Several substrates were tested for fungal growth (coconut shell, clear and dark sawdust and residue of passion fruit seed) with the control treatment using rice. The in vitro test results showed fungi high efficiency against Nasutitermes corniger, especially Isaria javanica with the highest potential for biological control with 100% mortality at a concentration of 108 conidia / mL from second day. The highest average production of conidia obtained from cadavers of N. corniger was found in Penicillium sp. and I. javanica at a concentration 107 and 108 conidia / mL. For the production of fungal inoculate on the tested substrates. The best results were found in substrates of rice and seed residue for Metarhizium anisopliae, Penicillium sp. and I. javanica in five, and eight days for Beauveria bassiana culture in humidity at 28 ° C. For field tests, the best result was observed over the Penicillium sp. at a concentration 108 conidia / mL.
Os cupins são insetos eusociais da ordem Isoptera, mais conhecidos por sua importância econômica como pragas, causando prejuízos em áreas urbanas, campo, sobretudo em canaviais, áreas de pastagens e florestas. O controle biológico com fungos entomopatogênicos tem demonstrado ser uma opção viável, pois não compromete o manejo e nem apresenta efeitos deletérios sobre os animais, como pode ocorrer no uso de produtos químicos. Este trabalho teve como objetivo analisar quatro espécies de fungos biologicamente ativos contra o cupim Nasutitermes corniger e buscar novas fontes de produção dos inóculos, visando o desenvolvimento futuro de um produto para controle biológico de cupim no Amazonas. O bioensaio in vitro: conídios foram produzidos, quantificados e inoculados. Vários substratos foram testados para crescimento dos fungos (casca de coco, serragem clara, serragem escuro e resíduo de semente de maracujá) tendo como controle o arroz. Os resultados dos testes in vitro mostraram que os fungos apresentaram alta eficiência contra Nasutitermes corniger, destacando-se I. javanica que apresentou maior potencial para o controle biológico com 100% de mortalidade na concentração de 108 conídios/mL a partir do segundo dia. O maior índice médio de produção de conídios obtidos de cadáveres de N. corniger foram encontrados em Penicillium sp. e I. javanica na concentração 107 e 108 conídios/mL. Para a produção dos inóculos fúngicos nos substratos testados, os melhores resultados foram encontrados nos substratos de arroz e de resíduo de semente de maracujá para Metarhizium anisopliae, Penicillium sp. e Isaria javanica em cinco dias e em oito para Beauveria bassiana de cultivo em umidade relativa a 28 °C. Para testes em campo, o melhor resultado foi observado com o Penicillium sp., na concentração 108 conídios/mL .
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Kostova, Gergana [Verfasser], and Wolfgang [Akademischer Betreuer] Hess. "Regulation by the sRNA IsaR1 and transcriptome remodelling under iron starvation in Synechocystis sp. PCC 6803." Freiburg : Universität, 2016. http://d-nb.info/116437429X/34.

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Gusatti, Carolina de Souza. "Caracterização de isolados clínicos e ambientais de Acinetobacter sp : presença de ISAba 1 e diversidade de blaOXA-51-like." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/33666.

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A capacidade de adquirir, com facilidade, resistência à terapia antimicrobiana torna-se uma das características mais estudadas em Acinetobacter sp., mundialmente conhecido por estar relacionado a surtos de infecções associadas à assistência a saúde (IAAS) e por ser apontado como um grave problema de saúde pública. Embora isolados clínicos desse gênero sejam extensivamente estudados quanto à presença e a diversidade de genes do tipo OXA-carbapenemases,existem poucos estudos sobre essa relação em isolados ambientais. Este trabalho teve como objetivo determinar a presença de carbapenemases do tipo OXA (e sua diversidade), de ISAba1 e de sua relação com as carbapenemases em isolados clínicos e de esgoto hospitalar de Acinetobacter sp. na cidade de Porto Alegre, Rio Grande do Sul. Um total de 310 isolados (145 clínicos e 165 ambientais) foram submetidos a análise por PCR das regiões genéticas de interesse. A diversidade dos genes do tipo blaOXA-51 foi realizada por DGGE. Os resultados indicam a presença do gene blaOXA-58 em um isolado, pela primeira vez no Brasil. A sequência ISAba1 foi frequentemente encontrada (92,9%), porém, a sua associação com blaOXA-51 foi baixa e encontrada em 9,8% dos isolados clínicos e em 6,5% dos isolados ambientais. A análise de diversidade revelou uma baixa freqüência de alelos de OXA-51 entre os isolados estudados, sendo blaOXA-65 a variante mais encontrada. Contudo, podemos afirmar que o esgoto hospitalar analisado constitui-se de uma fonte de contaminação de bactérias patogênicas e que as precárias políticas de saneamento podem proporcionar a disseminação de multirresistência para o meio ambiente.
The ability of easily acquiring resistance to antimicrobial therapy becomes one of the most studied features in Acinetobacter sp., world renowned for being related to outbreaks of infection associated with health care and for being appointed as a serious public health problem. Although clinical isolates of this genus are extensively studied for the presence and diversity of OXAcarbapenemase genes, there are few studies about this relationship in environmental isolates. This study aimed to determine the presence of OXAtype carbapenemases (and yours diversity), of ISAba1 and its relationship with carbapenemases in clinical and hospital sewage isolates of Acinetobacter sp. in Porto Alegre, Rio Grande do Sul. A total of 310 strains (145 of clinical origin and 165 of environmental origin) were subjected to PCR analysis of genetic regions of interest. The diversity of blaOXA-51-like genes was performed by DGGE. The results indicate the presence of the gene blaOXA-58 in an isolated, for the first time in Brazil. ISAba1 was frequently found (92.9%) but its association with blaOXA-51-like was low and was found in 9.8% of clinical isolates and in 6.5% of environmental isolates. The diversity analysis showed that there is a low frequency of alleles of OXA-51 among the studied isolates being blaOXA-65 variant the most often found. However, we can state that the hospital sewage is considered to be a source of pathogenic bacteria contamination and that the poor sanitation politics contributes to the spread of multidrug resistance in the environment.
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ČÁPOVÁ, Aneta. "Genetická variabilita entomopatogenních hub rodu \kur{Isaria} v České republice." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-203363.

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My diploma thesis deals with genetic variability of entomopathogenic fungi of the Isaria genus encountered in the Czech Republic. Individual representative of the genus can be found in soil where they attack all developmental stages of insects, giving preference to larvae and pupae. The Isaria fungi find application first and foremost where plants have to be provided biological protection. In case of mitosporic fungi is the precise identification very difficult, taxonomy is often unclear in many genera, including the genus Paecilomyces/Isaria to demonstrate their polyphyletic nature. The fungi are classified primarily with reliance on morphological studies. The most common markers used to identify fungi are the shapes and sizes of their conidia and the biological properties (germination of spores, tests of biological efficiency). Identification made in consideration of the morphological markers is inaccurate and very variable. To overcome those accuracies, there are very useful molecular DNA markers, which can be relevant in ecology, biology and in fungi genetics. This paper relies on applying the ITS region (Internal Transcribed Spacer) as a molecular marker. ITS regions are partial constituent rDNA carrying no code - that is why the regions are likely to accumulate evolutionary changes in the DNA sequence, which makes them suitable for extensive use in taxonomic analyses of many organisms. The study results in a phylogenetic trees constructed by comparing different sequences of ITS regions obtained from the samples of entomopathogenic fungi of the Isaria genus gathered in the Czech Republic during the monitoring stage 2013 to 2014. Thereunder detection of Isaria sp. occurring in the Czech Republic.
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Akutse, Komivi Senyo. "Interrelationships between Diglyphus isaea, Phaedrotoma scabriventris and endophytic fungi in the control of Liriomyza leafminers / Komivi Senyo Akutse." Thesis, 2013. http://hdl.handle.net/10394/10818.

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Horticulture is a major foreign exchange earner in Kenya and provides employment to approximately 75% of the population. However, the growth of the horticultural industry is constrained by pests such as the leafminer flies, Liriomyza sativae, L. trifolii and L. huidobrensis (Diptera: Agromyzidae). These pests do not only cause damage to crops, but are also tagged as quarantine pests, resulting in export rejections, loss of export markets and consequently loss of revenue to smallholders. The management of leafminers worldwide has commonly relied on the use of chemical insecticides, but due to associated negative effects thereof, biological control using parasitoids and entomopathogenic fungi has been proposed as major components of integrated pest management (IPM) strategies. The indigenous ectoparasitoid Diglyphus isaea and exotic endoparasitoid Phaedrotoma scabriventris are the two key natural enemies being considered. A number of endophytic fungal isolates have been identified with potential for use as biological control agents of pests. Although there have been previous reports on toxicity of fungal endophytes to leafminers, no attempts have been made to exploit them for control of Liriomyza leafminers. The objectives of this study were to investigate the mechanisms by which fungal endophytes control Liriomyza spp., as well as the interactions between these endophytic fungi and the L. huidobrensis, endoparasitoid Phaedrotoma scabriventris and ectoparasitoid Diglyphus isaea. This study showed that under laboratory conditions, while used separately, parasitism rates of L. huidobrensis by D. isaea and P. scabriventris were 63.6 ± 7.7% and 30.4 ± 10.9% respectively and increased to 77.0 ± 5.3% when used simultaneously. In addition, both parasitoids induced leafminer mortality through larval-feeding and stinging. In order to identify and characterize endophytic fungi that could possibly be used for control of these pests, fungi were isolated from the aboveground parts of maize, sorghum, Napier grass, Coleopteran larvae and Busseola fusca pupae. Identified fungi were evaluated endophytically in two host plants species (Phaseolus vulgaris and Vicia faba) through seed inoculation. The fungal isolates that succeeded in colonizing the host plants were all pathogenic to L. huidobrensis, causing 100% mortality within 13.2 ± 0.7-15.0 ± 0.6 days. They were also able to reduce the longevity of the progeny, the number of pupae and adult emergence and survival. In addition, results also showed that endophytically-inoculated and L. huidobrensis-infested V. faba plants had no adverse effects on parasitism rates and life history parameters of P. scabriventris and D. isaea. Bio-prospecting for fungal endophytes in P. vulgaris and V. faba seeds, followed by morphological and molecular identification revealed the presence of various species of fungal entomopathogens, including Beauveria bassiana, Epacris microphylla, Phanerochaete chrysosporium and Metarhizium anisopliae.
PhD (Environmental Sciences), North-West University, Potchefstroom Campus, 2013
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Books on the topic "Isaria sp"

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ISAIRAS '99: Fifth International Symposium on Artificial Intelligence, Robotics, and Automation in Space, ESTEC, Noordwijk, the Netherlands, 1-3 June 1999 (ESA SP). Contact ESA Publications Division, ESTEC, 1999.

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Book chapters on the topic "Isaria sp"

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"Audits in Cybersecurity." In Cyber Security Auditing, Assurance, and Awareness Through CSAM and CATRAM, 126–48. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4162-3.ch007.

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The objective of this chapter is to provision a comprehensive literature review of the most relevant approaches for conducting cybersecurity audits. The study includes auditing perspectives for specific scopes and the best practices that many leading organizations are providing for security and auditing professionals to follow. The chapter reviews relevant features for auditing approaches in the following order: ISO/IEC 27001:2013, ISO/IEC 27002:2013, Control Objectives for Information and Related Technology (COBIT) 2019, Information Technology Infrastructure Library (ITIL) 4, AICPA, ISACA, NIST SP 800-53, NIST CSF v1.1, IIA, PCI DSS, ITAF, COSO, ENISA, NERC CIP, and CSAM.
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Sabillon, Regner. "Audits in Cybersecurity." In Research Anthology on Business Aspects of Cybersecurity, 1–18. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-3698-1.ch001.

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The objective of this chapter is to provision a comprehensive literature review of the most relevant approaches for conducting cybersecurity audits. The study includes auditing perspectives for specific scopes and the best practices that many leading organizations are providing for security and auditing professionals to follow. The chapter reviews relevant features for auditing approaches in the following order: ISO/IEC 27001:2013, ISO/IEC 27002:2013, Control Objectives for Information and Related Technology (COBIT) 2019, Information Technology Infrastructure Library (ITIL) 4, AICPA, ISACA, NIST SP 800-53, NIST CSF v1.1, IIA, PCI DSS, ITAF, COSO, ENISA, NERC CIP, and CSAM.
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"9 . . TThhee si stiu tu at aito io nnooff fu fu ll l -l t -i t m im e e rrrr   r r      rrrr   r r   ( b ( b , b , b ,  ,  , b , b ) ) = ( a ( a , a , a ,  ,  , a , a ) )      =             r  rrr    r r  (4) (4) TThhee ultimate goal of using the FAHP is to find ultimate goal of using the FAHP is to find oouuttth th eere re la la ti t v iv eewwee ig ig hhttooffeeaacchh ind indic ic a a to to r r to to oovvee ra ra ll l l ggooaallooffAA . . A A ss s u su m m in in ggth th aattth th eewwee ig ig hhttvvaa lu lu eevveecc to to rrooff eeaacchh in in d d ic ic a a to to rroonn th th eemm id id d d le le ti t e ie rrBB re re la la ti t v iv e e to to th th e e oovvee ra ra ll llggooaallooffAAisisaassfo fo ll l o lo wws: s : W W = { { w w , w , w ,. , . . . . . . w .w } } = (5 (5) ) The weight value vector of each indicator on the in in ddeexxla la yyeerrCCre re la la ti t v iv eeto to t h th eemm id id d d le le l a la yyeerrBBisisaassfo fo l-l- lo lo wws: s : (6 (6 ) ) AAnnddth th eewwee ig ig hhttvvaa lu lu eevveecc to to rrooffeeaacchhin in d d ic ic a a to to rroonnTThheeppoo ss sisb ib il iilt ity the index layer C relative to the overall goal of A is y in in fl f u lu eenncceefa fa c c to to rrin in d d ic ic a a to to rs rsaannddth th e e the index layer C relative to the overall goal of A is as follows: ccoonn se se qquueenn ti t a ia llin in fl f u lu as follows: eenncceefa fa c c to to rrin in d d ic ic a a to to rs rsaa re re d d iv iv id id eedd in in to to fo fo uurrdd if iffe fe re re nntt le le vvee ls l , s , eeaacchh le level corre vel corresp sp oonndd in in g g (7 (7 ) ) to to d d if iffe fe re re nnttgg ra ra ddeess ( a (a sssh sh oowwnnin in TTaabb le le 2 2 ). ) . In In t h th is isaa rt ritc ic le le , , t h th eefu fu zzzzyyccoonn si ssitse te nnttju ju ddggmmeennttmmaa --tr tirx ix eessoofffa fa il i u lu re re p p ro ro bbaabb il iiltiy ty aannddfa fa il i u lu re re c con onse se qquueennccee Table 2. The Indicator Score Table of the Mobile a a re re e e st s a ta b b li lsih sh eeddbbaa se se ddoonnth th eefu fu zzzzyyccoonn si ssitse te n nt matrix Table 2. The Indicator Score Table of the Mobile t matrix Crane Risk Factors bbyyPP ro ro fe fe ss s o so r r Ji J a ia nnggLL ia ia nnggkkuui. i . AAccccoo rd rd in in g g to to th the Cr Fv a tors wwee ig ig hhttvvaa lu lu eeccaa lc lc u u la la ti t o io nnmmee th th ooddoofffu fu zzzzyyccoonn si ssitse te nntt matrix matrix bbyyPP ro ro fe fe ss s o so rrLLvvYYuuee ji j n in , , f u fu zzzzyyccoonn si ssitse te nnttmmaa --tr tirx ix wwee ig ig h h ts tsWWccaannbbeeeexxpp re re ss s e se ddaassfo fo ll l o lo wws: s : 3 Determination of Index Weight (8 (8) ) AAccccoo rd rd in in g g to to th th eeFFAAHHPP , , wwee ig ig h h ts tsooffpp ro ro bbaabb il ili The FAHP ity ty The FAHP isisuu se se ddto to ddee te te rm rm in in eeth th eein in ddeexxwwee ig ig hht. t . A A indicators and consequential indicators are factor set is: U = {u , u , …, u }. The evaluation set indicators and consequential indicators are oobb ta ta in in eedd , , factor set is: U = {u, u, …, u}. The evaluation set as shown in Table 3 and Table 4." In Structural Health Monitoring and Integrity Management, 406–8. CRC Press, 2015. http://dx.doi.org/10.1201/b18510-131.

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