Fusarium wilt on sweet basil: Cause and sources in southeastern Spain

Moya, M. L. Guirado; Aguilar, Morales; Blanco, R.; Kenig, A.; Gómez, José Ignacio Ruiz de Galarreta; Tello, Julio C.

doi:10.1007/bf02979851

Cited by 13 publications

(6 citation statements)

References 8 publications

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“…basilici (Dzidzariya) Armstrong & Armstrong, cuja forma especializada causa doença em manjericão (6,13). Esta doença já havia sido relatada em diversos outros países, entre eles a Itália 7, França (18), Estados Unidos (29), Israel (12), Espanha (8) e África do Sul (23); sendo um dos principais problemas fitossanitários da cultura na maioria destes países (4,5,6,9,13,26).…”

Section: Resultsunclassified

“…Em torno de 5% das plantas, obtidas do lote de sementes de 'Italian Large Leaf' e mantidas em vasos em casa de vegetação, murcharam após 40 a 60 dias do semeio. Existem relatos de que este fungo pode ser transmitido por sementes, sendo este seu principal veículo de disseminação a longas distâncias (3,4,9,26,27). Os lotes analisados aqui representavam sementes comerciais importadas, vendidas no Brasil por companhias sementeiras.…”

Section: Resultsunclassified

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

et al. 2007

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O manjericão (Ocimum basilicum L.) é uma hortaliça da família Lamiaceae, utilizada na culinária ou como matéria prima para a indústria de fármacos e óleos essenciais. Amostras de plantas de manjericão apresentando sintomas de murcha, seca de hastes e podridão de colo foram coletadas na área rural de Brazlândia (DF) durante a estação chuvosa de 2005. Outras duas amostras foram coletadas em plantas cultivadas em campo aberto e casas de vegetação na região de Ponte Alta (DF). Isolados de um fungo, identificado como Fusarium oxysporum, foram obtidos em todas as amostras. Testes de patogenicidade foram conduzidos com mudas das cultivares O. basilicum 'Dark Opal' e 'Italian Large Leaf', e de acessos das espécies O. americanum L. (manjericão de folha miúda), O. campechianum Mill. (alfavaca), Origanum manjorana L. (manjerona), Origanum vulgare L. (orégano), Mentha arvensis L. (menta), Coleus blumei Benth. (tapete), Leonorus sibiricus L. (rubim) e Leonotis nepetaefolia (L.) W.T. Aiton (cordão-de-frade). Todos os isolados fúngicos mostraram-se altamente virulentos sobre as duas cultivares de manjericão. Em O. campechianum e O. americanum os isolados causaram apenas suave escurecimento vascular e leve redução de crescimento, sendo avirulentos sobre acessos das espécies O. manjorana, O. vulgare, M. arvensis, C. blumei, L. sibiricus e L. nepetaefolia. Este conjunto de dados indicou que o agente causal da doença é o fungo F. oxysporum f. sp. basilici, constituindo-se no primeiro registro formal deste patógeno no Brasil. Os lotes de sementes utilizados nas áreas de ocorrência da doença foram submetidos a um teste de sanidade visando verificar a presença do patógeno. O fungo F. oxysporum f. sp. basilici foi detectado em quatro dos seis lotes e os isolados obtidos das sementes contaminadas mostraram similar sintomatologia e um idêntico perfil de virulência aos verificados em campo e casa de vegetação, sugerindo que as sementes representam o mais provável veículo de introdução e potencial disseminação deste patógeno no Brasil.

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Section: Resultsunclassified

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

et al. 2007

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“…Another research study carried out in Spain reported on Fo detection from diseased plants of Ocymum basilicum (basil) showing symptoms of Fusarium wilt and necrosis (Guirado et al, 2004). Artificial inoculation of the fungus onto different hosts showed that the causal agent was pathogenic to basil but not to other horticultural crops or aromatic herbs, and thus it was possible to conclude that the pathogen was a new formae special, Fo f. sp.…”

Section: Example2: Ocymum Basilicum (Basil)mentioning

confidence: 97%

Seed-borne Fusarium pathogens in agricultural crops

Blanco¹,

Aveling²

2018

Acta Hortic.

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Diseases caused by Fusarium spp. occur worldwide throughout all production areas of edible and ornamental plants as well as tree plantations. Fusarium spp. cause yield losses of up to 80% in both field-and greenhouse-grown crops, resulting in serious economic losses. It is known that plant material such as fruits and seeds as well as soil, can be a pathway of disease transmission; therefore, different strategies to control Fusarium have been used: planting new cultivars, grafting, using inorganic and organic substrates, soil solarization, biofumigation and seed treatments. Nonetheless, new Fusarium pathotypes are often detected or reported to be the causal agent of diseases. To determine the pathway of Fusarium transmission, specifically through seed, is challenging and scientific reports in this regard, are lacking. To prove that seed is the pathway of pathogen transmission is timeconsuming and laborious, since pathogenicity tests with several Fusarium isolates must be conducted during several growth stages of the host. The isolates then have to be re-isolated from infected plant parts to confirm Koch's postulates and seeds from inoculated plants need to be obtained which in turn need to be tested again for the presence of the pathogen. To prevent the introduction and distribution of Fusarium spp., growers (for local and export markets), technical advisors, and seed producers need to use disease-free seed. The potential production of Fusarium mycotoxins during storage is an additional concern when using Fusarium infected seeds for food. Depending on the region, it is important to know which crops (hosts) are susceptible to a particular Fusarium sp., how this pathogen can be avoided, and how to produce and select healthy fruits and seeds. Efforts must be directed towards avoiding seed contamination with pathogens and developing or optimizing seed health testing methods to detect Fusarium.

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“…Following this initial report, the pathogen was reported in several other states throughout the United States (Datnoff et al, 1997;Davis et al, 1993;Dutky and Wolkow, 1994;Holocomb and Reed, 1994;Keinath, 1993;Uchida et al, 1996). Additionally, FOB was found in many other countries, including France, Italy, Israel, southeastern Spain, Greece, Japan, South Africa, Australia, Canada, and Brazil (Biris et al, 2004;Dudai et al, 2002;Elmer et al, 1994;Gamliel et al, 1996;Grasso, 1975;Mercier and Pionnat, 1982;Moya et al, 2004;Reuveni et al, 1997;Summerell et al, 2006;Swart and van Niekerk, 2003;Taba et al, 2002;Tamietti and Matta, 1989;Trueman and Wick, 1996). More recently, growers have observed a resurgence of FOB and an increase of susceptibility in FOB-resistant cultivars (Toussaint et al, 2008;personal observation).…”

mentioning

confidence: 96%

“…basilici, greatly impact the success of this crop (Reis et al, 2008;Wyenandt et al, 2015). While both pathogens can result in yield and quality reduction, FOB infection of a young, susceptible sweet basil cultivar can result in plant death within 4 to 7 d after the appearance of symptoms (Garibaldi et al, 1997;Moya et al, 2004). Equally concerning, FOB is persistent in the soil.…”

mentioning

confidence: 99%

Cold Plasma Treatment Strategies for the Control of Fusarium oxysporum f. sp. basilici in Sweet Basil

Homa¹,

Barney²,

Davis³

et al. 2021

horts

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Fusarium wilt of basil (FOB), caused by Fusarium oxysporum f. sp. basilici, is an economically damaging disease of field- and greenhouse-grown sweet basil. Growers have observed a resurgence of FOB and susceptibility in FOB-resistant cultivars. Because currently available chemical, biological, and cultural control methods are costly, unsustainable, ineffective, or challenging to implement, new strategies of FOB control are needed. Cold plasma is becoming an increasingly important experimental technology in the food and agricultural industry for pathogen decontamination. To understand the effect of cold plasma treatment on FOB incidence and severity, experiments were conducted by treating FOB mycelium, inoculated sweet basil seedlings, and seeds with various experimental cold plasma treatment devices, all using helium as a feed gas. Initial results indicated that while the cold plasma jet treatment did not result in a significant reduction in mean mycelial growth rate or virulence of the pathogen, direct cold plasma jet treatments on seedlings, as well as a cold plasma dielectric barrier discharge treatment on seeds, did exhibit varying efficacies against FOB. Control of FOB appeared to be strongly dependent on the exposure time to cold plasma. These findings can aid in the standardization of a cold plasma treatment for the commercial basil seed and transplant industry.

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Fusarium wilt on sweet basil: Cause and sources in southeastern Spain

Cited by 13 publications

References 8 publications

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

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

Seed-borne Fusarium pathogens in agricultural crops

Cold Plasma Treatment Strategies for the Control of Fusarium oxysporum f. sp. basilici in Sweet Basil

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