Murcha do manjericão (Ocimum basilicum) no Brasil: agente causal, círculo de plantas hospedeiras e transmissão via semente

Reis, Ailton; Miranda, Bruno Eduardo Cardozo de; Boiteux, L. S.; Henz, Gilmar Paulo

doi:10.1590/s0100-54052007000200006

Cited by 10 publications

(9 citation statements)

References 16 publications

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“…O. basilicum leaves are used in infusions and decoctions for sore throats, dizziness, convulsion, colds and vomiting [3]. Sweet basil is also used as a raw material for the essential oil and drug industries [4,5]. In Brazil, this species is used as a food condiment either in natura or manufactured, and for essential oil extraction [6].…”

mentioning

confidence: 99%

Influence of Viral Infection on Essential Oil Composition of Ocimum basilicum (Lamiaceae)

Nagai

Duarte

Santos

2011

Natural Product Communications

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Ocimum basilicum L., popularly known as sweet basil, is a Lamiaceae species whose essential oil is mainly composed of monoterpenes, sesquiterpenes and phenylpropanoids. The contents of these compounds can be affected by abiotic and biotic factors such as infections caused by viruses. The main goal of this research was an investigation of the effects of viral infection on the essential oil profile of common basil. Seeds of O. basilicum L. cv. Genovese were sowed and kept in a greenhouse. Plants presenting two pairs of leaves above the cotyledons were inoculated with an unidentified virus isolated from a field plant showing chlorotic yellow spots and foliar deformation. Essential oils of healthy and infected plants were extracted by hydrodistillation and analyzed by GCMS. Changes in essential oil composition due to viral infection were observed. Methyleugenol and p-cresol,2,6-di-tert-butyl were the main constituents. However, methyleugenol contents were significantly decreased in infected plants.

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confidence: 99%

Influence of Viral Infection on Essential Oil Composition of Ocimum basilicum (Lamiaceae)

Nagai

Duarte

Santos

2011

Natural Product Communications

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“…basilici (Reis et al 2007). The isolate was highly virulent to the susceptible control Dark Opal, indicating adequate inoculum viability.…”

Section: Resultsmentioning

confidence: 99%

“…basilici isolates (FOB-2-FOB-5). The previously reported susceptible cultivar Dark Opal (Reis et al 2007) was used as a control. The experimental plots and evaluation criteria in assay 2 were essentially the same as described for assay 1.…”

Section: Methodsmentioning

confidence: 99%

“…In Brazil, Fusarium wilt of sweet basil was recently been reported (Reis et al 2007) and may become a major concern for basil growers if adequate disease control measures are not implemented. As demonstrated for several other Fusarium wilt diseases with distinct host plants, the most effective control strategy is the deployment of resistant cultivars (Garibaldi et al 1997;Reuveni et al 1997;Reis et al 2004;Chaimovitsh et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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Search for sources of wide-spectrum resistance to Fusarium oxysporum f. sp. basilici isolates in accessions of Ocimum species

2008

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Ocimum (Lamiaceae) is an important plant genus, with many species used for food flavorings and for essential oils. Fusarium wilt (Fusarium oxysporum f. sp. basilici, FOB) is the most important disease of basil (O. basilicum L.). Twenty-five accessions of O. basilicum, five of O. americanum and two of O. campechianum were initially evaluated for resistance to one FOB isolate (named as FOB-1). Eight accessions (identified as resistant to FOB-1) and one susceptible control were reevaluated to FOB-1 and four other FOB isolates of distinct geographic origins. The FOB isolates varied in aggressiveness and interacted differentially with the Ocimum accessions. Two accessions of O. americanum, one of O. campechianum, and one of O. basilicum had high levels of resistance to all five FOB isolates. The Ocimum germplasm identified here could represent useful sources of resistance genes for developing cultivars with wide-spectrum resistance (i.e., effective against a broad range of FOB isolates). In addition, having a set of potential differential accessions might be useful for large-scale analysis of FOB isolates to demonstrate the presence of physiological races in the Ocimum-FOB pathosystem.

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“…Fusarium is a soil-inhabiting species and is often found on seeds, causing damage in various crops, such as basil (Reis et al, 2007), black pepper (Carnaúba et al, 2007), dry beans (Sala et al, 2006) and also castor bean, where it can cause severe damage (Silva, 2005). Alternaria is another fungus, associated with castor bean seeds, causing alternaria spot disease (Silva, 2005) and the fungus Macrophomina is responsible for one of the main diseases found in castor bean (stem or root rot) and various other crops via the seeds (Vanzolini et al, 2010).…”

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confidence: 99%

Chemical and biological treatments of castor bean seeds: effects on germination, emergence and associated microorganisms

Marroni¹,

Moura²,

Ueno³

2012

Rev. bras. sementes

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RESUMO -Avaliou-se o efeito dos tratamentos químicos e biológicos sobre a emergência, vigor de plântulas de mamona, produção de matéria seca, além do controle de microrganismos associados às sementes das cultivares AL Guarany 2002 e Lyra. Os produtos testados foram carbendazim+thiram, carboxin+thiram e um à base de Trichoderma. A emergência total e de plântulas foram avaliadas aos 27 dias após a semeadura e a produção de matéria seca, com plantas retiradas 45 dias após a semeadura. A cv. AL Guarany 2002 apresentou maior incidência de microrganismos em relação à cv. Lyra. O tratamento químico foi 100% eficiente no controle de fungos e o tratamento biológico não reduziu a incidência de microrganismos nas sementes. O tratamento químico resultou em plantas com maior matéria seca e os melhores resultados foram para carbendazim + thiram e carboxin+ thiram, nas doses de 60 g + 140 g e 50 g + 50 g/100 kg de sementes, respectivamente. O carbendazim + thiram foi o único tratamento que se mostrou estatisticamente superior, quanto ao índice de emergência total, enquanto que o tratamento biológico aumentou os valores de emergência somente na cv. Lyra, evidenciando sua inferioridade. Destacou-se a importância dos fungicidas para o controle de patógenos associados às sementes.Termos para indexação: Ricinus communis, fungicidas, teste de papel filtro, Trichoderma.ABSTRACT -The effect of chemical and biological treatments on castor bean emergence, seedling vigor, dry matter production, and also the control of microorganisms associated with seeds of the AL Guarany 2002 and Lyra cultivars, was evaluated. The products tested were carbendazim + thiram, carboxin + thiram and a product based on Trichoderma. Total seed and seedling emergence were evaluated at 27 days after sowing whereas dry matter production was verified for plants removed 45 days after sowing. The Guarany 2002 AL cultivar had a higher incidence of microorganisms than the Lyra cultivar. The chemical treatment was 100% effective in controlling fungi but the biological treatment did not reduce microorganism incidence on the seeds. Chemical treatment resulted in plants with more dry matter and the best results were for carbendazim + thiram and carboxin + thiram at doses of 60 g + 140 g and 50 g + 50 g/100 kg of seeds, respectively. The carbendazim + thiram mixture was the only treatment which was statistically higher for total emergence whereas the biological treatment increased emergence only for the Lyra cultivar, thus demonstrating its lower efficiency. The importance of fungicides to control pathogens associated with seeds was discussed.

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Murcha do manjericão (Ocimum basilicum) no Brasil: agente causal, círculo de plantas hospedeiras e transmissão via semente

Cited by 10 publications

References 16 publications

Influence of Viral Infection on Essential Oil Composition of Ocimum basilicum (Lamiaceae)

Influence of Viral Infection on Essential Oil Composition of Ocimum basilicum (Lamiaceae)

Search for sources of wide-spectrum resistance to Fusarium oxysporum f. sp. basilici isolates in accessions of Ocimum species

Chemical and biological treatments of castor bean seeds: effects on germination, emergence and associated microorganisms

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