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The medicinal plant yarrow (Achillea millefolium L.) belongs to the Asteracea family. It is being used in the pharmacological, food, and cosmetic industry. The economic importance of yarrow resides in its essential oil (EO). This plant is used in traditional medicine as the EO has properties which range from antibacterial, antifungal, anti-inflammatory, anti-oxidant and antitumor activities. The objective of this study was to identify chemical components and EO content of yarrow, as well as its antimicrobial activity against some micro-organisms in vitro. The fresh leaves were collected in a morning in October (2018) at the UNIPAR Medicinal Plants Garden, Umuarama-Paraná State, Brazil. The EO was obtained by hydrodistillation of the modified Clevenger type. After that, the content (m/m%) was calculated. The chemical composition of the EO was identified by gas chromatography/mass spectrometry (GC/MS). The minimal inhibitory concentration (MIC), minimal bactericidal concentration (MBC) and minimal fungicidal concentration (MFC) were determined by a microdilution method in 96-well microtitre plates and effect of EO was assessed on four micro-organisms (Candida albicans, Staphylococcus epidermidis, Escherechia coli and Klebsiella pneumoniae). The EO content (yield) in the plant shoots was 0.4% (four grams of EO kg-1 of plant fresh shoots) and presented 20 chemical compounds such as α-farnesene (31.66%), followed by chamazulene (17.17%), β-caryophyllene (10.27%) and sabinene (8.77%). The majority class was hydrocarbon sesquiterpene with 74.29%. The antimicrobial activity tests showed that the EO had low antimicrobial activity against the analyzed species with MIC for all species above 1.5 mg mL-1. It was concluded that the EO content was 0.4%. The major component was α-farnesene (31.66%) and EO presented low MIC.

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This study aimed at evaluating the growth and essential oil content of Salvia officinalis L. (sage) inoculated with two species of arbuscular mycorrhizal fungi (AMF) Rhizophagus clarus and Claroideoglomus etunicatum under different phosphorous (P) levels. The treatments were prepared in a sterile substrate (sand, vermiculite and organic compound (1: 1: 2, v:v) with high (200 mg kg−1) and low (20 mg kg−1) P levels at sowing, with and without AMF inoculation; the experiment was conducted in a greenhouse for four months. Plants were grown in pots with 3 kg of substrate in a 3 x 2 (3 mycorrhizal x 2 levels of P) factorial experiment, in a completely randomized design (with eight repetitions). Spore density, AMF root colonization, plant dry mass, P and N shoot content, yield and composition of essential oil (EO) were determined. Data were processed and submitted to analyses of hierarchical clustering and principal component. Plant biomass increased with addition of P in the substrate. EO content increased with AMF Rhizophagus clarus inoculation in high-P substrate. It was concluded that inoculation with R. clarus and the addition of P at sowing can boost the growth of sage and the content of its EO. Camphor, α-humulene, viridiflorol, manool, α-thujone and β- thujone were the main components of the EO.

PEDROSO, L.; BERTOLDO, J. L.; MARCHI, B. de A.; CRUZ, R. M. S. da; SOUZA, B. C. de; LERMEN, C.; ALBERTON, O. Avaliação dos fitorreguladores auxina e giberelina na germinação e crescimento do arroz. Arq. Ciênc. Vet. Zool. UNI-PAR, Umuarama, v. 19, n. 4, p. 241-245, out./dez. 2016. RESUMO:O arroz (Oryza sativa L.) é uma planta da família das Poaceas (gramíneas), sendo um dos cereais mais cultivados no mundo. Os fitorreguladores como auxina e giberilina podem influenciar o crescimento e desenvolvimento das plantas como o arroz. O objetivo deste estudo foi avaliar a germinação e o crescimento do arroz sob diferentes doses de fitorreguladores (auxina e giberelina). Foram conduzidos dois experimentos, o primeiro para determinar a germinação e comprimento radicular das sementes de arroz. O segundo experimento foi conduzido para determinar a altura, massa seca da parte área (MSPA) e o conteúdo nitrogênio (N) da parte aérea (NPA). Nos dois experimentos foram testadas quatro doses de auxina + giberelina: 0 (testemunha); 200; 500 e 1000 mL ha -1 . O delineamento experimental foi inteiramente casualizado com cinco repetições para cada tratamento nos dois experimentos. A germinação das sementes e o comprimento radicular foram aumentados com a aplicação de auxina e giberelina. A altura e o NPA foram aumentados significantemente com a aplicação de auxina e giberelina. Concluiu-se que a aplicação de auxina e giberelina na cultura do arroz aumentaram a germinação e o comprimento radicular das sementes. Além disso, aumentou a altura e o conteúdo de nitrogênio nas plantas de arroz. PALAVRAS-CHAVES: Fitohormônios. Germinação. Poaceae. ASSESSMENT OF AUXIN AND GIBBERELLIN ON RICE GERMINATION AND GROWTHABSTRACT: Rice (Oryza sativa L.) is one of the most widely grown cereals in the world. Phytoregulators such as auxin and gibberellin can influence both growth and development of plants such as rice. The aim of this study was to assess the germination and growth of rice under different doses of phytoregulators (auxin and gibberellin). Two experiments were performed, one to determine the germination and root length of rice seeds, and the second one to evaluated height, shoot dry mass (SDM) and shoot nitrogen content (SNC). Both experiments tested four doses of auxin + gibberellin (0 (control), 200, 500 and 1000 mL ha -1 ). The experimental design was completely randomized with five repetitions for both experiments. The germination and root length of rice seedlings were increased by the application of auxin and gibberellin. Rice height and SNC were significantly increased with the application of auxin and gibberellin. Thus, it can be concluded that the application of auxin and gibberellin in rice increases germination, root length, plant height and nitrogen content. KEYWORDS: Germanation. Phytohormones. Poaceae. EVALUACIÓN DE FITORREGULADORES AUXINA Y GIBERELINA EN LA GERMINACIÓN Y CRECIMIENTO DEL ARROZ RESUMEN:El arroz (Oryza sativa L.) es una planta de la familia Poaceas (gramíneas), siendo uno de los cereales más cultivados en el mundo....

ALBERTON, O. Crescimento de Ruta graveolens L. inoculada com micorrizas sob doses de fósforo. Arq. Ciênc. Vet. Zool. UNIPAR, Umuarama, v. 20, n. 1, p. 23-27, jan./mar. 2017. RESUMO:Os fungos micorrízicos arbusculares (FMAs) são micro-organismos que fazem simbiose com raízes da maioria das plantas. O objetivo deste trabalho foi avaliar a influência dos FMAs Rhizophagus clarus e Claroideoglomus etunicatum em substrato sob baixa e ou alta dose de fósforo (P), na produção de biomassa e na acumulação de P na arruda (Ruta graveolens L.). O experimento foi conduzido no laboratório de botânica da Universidade Paranaense -UNIPAR, município de Umuarama -PR. O delineamento experimental foi inteiramente ao acaso, em fatorial 3x2, sendo os fatores: FMAs (sem FMA, com R. clarus e ou com C. etunicatum); duas doses de P (20 e 200 mg kg -1 ) com 8 repetições por tratamento, num total de 48 unidades experimentais (vasos de 3 L). Avaliou-se a produção de massa seca das raízes (MSR), massa seca da parte aérea (MSPA), massa seca total (MST) e o acúmulo de P na parte aérea da planta (PPA). A produção de MSR, MSPA e MST pela planta não foram significativamente afetadas apenas pela adição de P ao substrato, porém sim, pela inoculação com o FMA C. etunicatum, sob baixo e ou alto P. O acúmulo de P na parte aérea da planta foi aumentado significativamente no tratamento sem a inoculação com FMAs. Conclui-se que a inoculação com C. etunicatum é indicada para aumentar a produtividade da arruda. PALAVRAS-CHAVE: Agricultura ecológica. Plantas condimentares e medicinais. Simbiose. GROWTH OF Ruta graveolens L. INOCULATED WITH ARBUSCULAR MYCORRHIZAL FUNGI UNDER LEVELS OF PHOSPHORUSABSTRACT: Arbuscular mycorrhizal fungi (AMF) are microorganisms that present symbiosis with the roots of most plants.The purpose of this work was to evaluate the influence of AMF Rhizophagus clarus and Claroideoglomus etunicatum on low and high doses of phosphorus (P) on plant biomass and P accumulation in rue (Ruta graveolens L.). The experiment was performed in the botanical laboratory at Universidade Paranaense -UNIPAR in the city of Umuarama, in the state of Paraná, Brazil. It used a completely randomized 3x2 experimental design, being: AMFs (without AMF, with R. clarus and/or with C. etunicatum); two levels of P (20 and 200 mg kg -1 ) with 8 repetitions per treatment, totaling 48 experimental units (3 L pots). Root dry matter (RDM), shoot dry matter (SDM), total dry matter (TDM) and P accumulation in the aerial part of the plant were evaluated. The production of RDM, SDM and TDM by the plant was not significantly affected by the addition of P to the substrate, but by the inoculation with AMF C. etunicatum under low and/or high P. The accumulation of P in the aerial part of the plant significantly increased in the treatment without AMF inoculation. It was concluded that inoculation with C. etunicatum is indicated to increase the productivity of rue. KEYWORDS: Eco-friendly agriculture. Spices and medicinal plants. Symbiosis. CRECIMIENTO DEL Ruta graveolens L. INOCUL...