Selection of endemic nonpathogenic endophytic Fusarium oxysporum from bean roots and rhizosphere competent fluorescent Pseudomonas species to suppress Fusarium-yellow of beans

Dhingra, O. D.; Coelho-Netto, Rosalee A.; Rodrigues, Fabrício Ávila; Silva, Geraldo José da; Maia, Cláudio Belmino

doi:10.1016/j.biocontrol.2006.04.006

Cited by 13 publications

(8 citation statements)

References 38 publications

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“…This may have resulted from the presence of different F. oxysporum populations, with predominance of nonpathogenic ones. Competition among them may explain this low mortality rate (Dhingra et al, 2006). Moreover, these populations possibly triggered plant resistance before FORC attack.…”

Section: Discussionmentioning

confidence: 99%

Protective effect of organic substrates against soil-borne pathogens in soilless cucumber crops

Montagne

Capiaux

Cannavo

et al. 2016

Scientia Horticulturae

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Protective effect of organic substrates against soil-borne pathogens in soilless cucumber crops. Scientia Horticulturae, Elsevier, 2016, 206, pp.62-70. 10.1016/j.scienta.2016.04.035. hal-01523673 Scientia Horticulturae 206 (2016 Contents lists available at ScienceDirect Scientia Horticulturae j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i h o r t i a b s t r a c tThe development of sustainable crop protection is expected by vegetable producers and highly encouraged by authorities. For crops grown in soilless systems, vegetable fibers are relevant for both agronomical and plant protection purposes. This work examines their potential against the soil-borne pathogen Fusarium oxysporum f. sp. radicis-cucumerinum. Wood fiber, coir fiber and peat were tested over two cucumber cropping periods. Fusarium blight symptoms were monitored on cucumber, and fungal community structure (PCR-TTGE) in substrates. Substrate sterilization and bio-augmentation with antagonistic strains were also studied; they did not modify protection. Compared to the other substrates, wood fiber increased protection at the end of the first assay, but did not during the second assay. Differences in crop season and plant density may have impacted on cucumber physiology and may have indirectly modified rhizosphere fungal community structure.The sole determination of microbial activity in substrates is not sufficient to predict protection. Growth conditions, substrate type and the microbiome altogether impacted on the protection of cucumber.

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Section: Discussionmentioning

confidence: 99%

Protective effect of organic substrates against soil-borne pathogens in soilless cucumber crops

Montagne

Capiaux

Cannavo

et al. 2016

Scientia Horticulturae

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“…Metode alternatif untuk pengendalian penyakit ini di antaranya ialah pemanfaatan mikrob antagonis Trichoderma harzianum (Santoso et al 2007;Coskuntuna dan Ozer 2008), cendawan mikoriza arbuskular (Rosyida dan Vita 2008), dan bakteri antagonis Pseudomonas fluorescens (Santoso et al 2007). Selain cendawan antagonis yang pernah dilaporkan seperti di atas, cendawan F. oxysporum nonpatogen dilaporkan mampu menekan penyakit busuk pangkal pada bawang bombai (Widodo 2000) dan penyakit layu fusarium pada tanaman lainnya (da Silva dan Bettiol 2005;Abeysinghe 2006;Dhingra et al 2006). Penelitian ini bertujuan menyeleksi F. oxysporum nonpatogen dari lahan produksi bawang merah yang dapat mengendalikan penyakit busuk pangkal pada bawang merah.…”

Section: Pendahuluanunclassified

Eksplorasi Fusarium Nonpatogen untuk Pengendalian Penyakit Busuk Pangkal pada Bawang Merah

Isniah

Widodo

2015

jfi

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Fusarium oxysporum f. sp. cepae sebagai penyebab penyakit busuk pangkal merupakan salah satu kendala dalam produksi bawang. Hasil dari berbagai penelitian menunjukkan adanya potensi F. oxysporum nonpatogen dalam pengendalian penyakit ini. Penelitian dilakukan untuk mengeksplorasi dan menguji isolat F. oxysporum nonpatogen dari lahan produksi bawang merah dalam mengendalikan penyakit tersebut. Sebanyak 18 dari 21 isolat hasil koleksi tidak menyebabkan gejala penyakit bahkan memacu pertumbuhan bawang merah ketika diinokulasikan ke umbi lapis bawang merah. Dari 18 isolat terpilih tersebut diperoleh 3 isolat F. oxysporum nonpatogen yang paling efektif dalam mengendalikan penyakit busuk pangkal, yaitu isolat P13a, T14a, dan P21a dengan tingkat efikasi berkisar antara 61.2% dan 83.3%. Tingkat efikasi tersebut lebih tinggi daripada perlakuan pembanding yang menggunakan fungisida berbahan aktif benomil.

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“…P. fluorescens reduced the severity of Fusarium (mainly F. oxysporum)-induced wilt on a variety of crops [32][33][34][35][36]. Pseudomonads produce several antifungal metabolites including cyclic lipopeptides, phloroglucinols, phenazines, pyoluteorin, and pyrrolnitrin [37] or may induce local or systemic resistance in the plant against the pathogen [38].…”

Section: Biocontrol Bacteriamentioning

confidence: 99%

Biocontrol of Fusarium circinatum Infection of Young Pinus radiata Trees

Iturritxa

Trask

Mesanza

et al. 2017

Forests

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Pitch canker, caused by the fungus Fusarium circinatum, is a major disease of Pinus radiata currently controlled to some extent in nurseries by good hygiene and application of synthetic fungicides. The aim of this study was to evaluate alternative strategies to control fungal infections in nurseries and young pine plantations. The antagonistic effects of biocontrol bacteria and essential oils against F. circinatum in vitro and in young P. radiata trees were assessed. Pseudomonas fluorescens, Erwinia billingiae, and Bacillus simplex reduced the growth of the fungus in vitro by 17%-29%, and decreased the density of the mycelial mat. In young P. radiata trees, the length of F. circinatum lesions was reduced by 22%-25% by the same bacterial strains. Direct application of cinnamon and/or clove essential oils to wounds in stems of two-year-old P. radiata trees also limited the damage caused by F. circinatum. Lesion length was reduced by 51% following treatment with cinnamon oil (10% v/v), and by 45% following treatment with clove oil (15% v/v) or a combination of both oils. However, the oils were toxic to younger trees. The biocontrol bacteria and essential oils show promise as prophylactic treatments to reduce the devastating effects of F. circinatum on P. radiata.

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Selection of endemic nonpathogenic endophytic Fusarium oxysporum from bean roots and rhizosphere competent fluorescent Pseudomonas species to suppress Fusarium-yellow of beans

Cited by 13 publications

References 38 publications

Protective effect of organic substrates against soil-borne pathogens in soilless cucumber crops

Protective effect of organic substrates against soil-borne pathogens in soilless cucumber crops

Eksplorasi Fusarium Nonpatogen untuk Pengendalian Penyakit Busuk Pangkal pada Bawang Merah

Biocontrol of Fusarium circinatum Infection of Young Pinus radiata Trees

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