Efficacy of Clay-Based Formulated Serratia in Reducing Inoculum of Fusarium Oxysporum F. Sp. Cubense Tropical Race 4

Ting, Adeline Su Yien; Fang, Mei; Tee, C. S.

doi:10.17660/actahortic.2011.897.58

Cited by 3 publications

(2 citation statements)

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“…BAC-JAG4, which reduced fungal growth in the three culture media tested and did not yield symptoms of wilt or rot, are consistent with previous studies reporting that S. liquefaciens, S. plymuthica and S. rubidaea showed in vitro antifungal activity against different fungal pathogens ( Kalbe et al, 1996). In particular, isolates of S. plymuthica have been used as biocontrol agents against Verticillium dahliae, Rhizoctonia solani and F. oxysporum in wheat, oats, cucumber, corn, canola and potato (Åström and Gerhardson, 1988;Kloepper et al, 1992;Kalbe et al, 1996;Berg, 2000;Frankowski et al, 2001;Ting et al, 2011).…”

Section: Discussionsupporting

confidence: 89%

Vanilla Rhizobacteria as Antagonists against Fusarium oxysporum f. sp. vanillae

Adame-García

Luna-Rodríguez

Iglesias-Andreu

2015

IJAB

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Pathogens such as Fusarium oxysporum strongly affect the health of various agricultural crops like vanilla. However, despite significant economic losses caused by this pathogen there is no efficient method for its control. Therefore, we propose using rhizobacteria obtained from vanilla roots against F. oxysporum f. sp. vanillae. The results showed that there was no positive correlation between the antagonism expressed under in vitro conditions and those expressed under greenhouse conditions. The 16S rDNA gene analysis indicated that the bacterial genera tested corresponded to Sphingobacterium, Staphylococcus, Serratia, Psychrobacter, Pseudomonas and Stenotrophomonas. The in vitro antifungal activity was evaluated using three culture media (Potato Dextrose Agar, Nutrient Agar and Czapek) using the empty box technique (antagonism). Isolates of Staphylococcus xylosus BAC-JAG15, Serratia sp. BAC-JAG4 and Stenotrophomonas sp. BAC-JAG1 showed 90% in vitro antagonism against F. oxysporum in the three media tested. In the greenhouse evaluation, plants treated with these isolates initially showed symptoms of chlorosis without developing characteristic symptoms of disease produced by F. oxysporum f. sp. vanillae. This demonstrates protection provided by rhizobacteria against infection from F. oxysporum f. sp. vanillae in vanilla plants.

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Section: Discussionsupporting

confidence: 89%

Vanilla Rhizobacteria as Antagonists against Fusarium oxysporum f. sp. vanillae

Adame-García

Luna-Rodríguez

Iglesias-Andreu

2015

IJAB

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“…Results showed that bentonite performed better and that further advantage could come from optimization of non-fat skimmed milk and sucrose levels, whereas para-aminobenzoic acid should be omitted from bentonite formulations (Ting et al, 2009a; Ting A.S.Y. et al, 2011). Other studies in greenhouse evaluating several rhizospheric bacterial strains (FB5, FB2, T2WF, T2WC, and W10) of unidentified species culminated in the successful control of FWB (81% reduction) (Yang et al, 2006).…”

Section: Biological Control Agents and Their Modes Of Action: Actual mentioning

confidence: 99%

Biological Control Agents Against Fusarium Wilt of Banana

et al. 2019

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In the last century, the banana crop and industry experienced dramatic losses due to an epidemic of Fusarium wilt of banana (FWB), caused by Fusarium oxysporum f.sp. cubense ( Foc ) race 1. An even more dramatic menace is now feared due to the spread of Foc tropical race 4. Plant genetic resistance is generally considered as the most plausible strategy for controlling effectively such a devastating disease, as occurred for the first round of FWB epidemic. Nevertheless, with at least 182 articles published since 1970, biological control represents a large body of knowledge on FWB. Remarkably, many studies deal with biological control agents (BCAs) that reached the field-testing stage and even refer to high effectiveness. Some selected BCAs have been repeatedly assayed in independent trials, suggesting their promising value. Overall under field conditions, FWB has been controlled up to 79% by using Pseudomonas spp. strains, and up to 70% by several endophytes and Trichoderma spp. strains. Lower biocontrol efficacy (42–55%) has been obtained with arbuscular mycorrhizal fungi, Bacillus spp., and non-pathogenic Fusarium strains. Studies on Streptomyces spp. have been mostly limited to in vitro conditions so far, with very few pot-experiments, and none conducted in the field. The BCAs have been applied with diverse procedures (e.g., spore suspension, organic amendments, bioformulations, etc.) and at different stages of plant development (i.e., in vitro , nursery, at transplanting, post-transplanting), but there has been no evidence for a protocol better than another. Nonetheless, new bioformulation technologies (e.g., nanotechnology, formulation of microbial consortia and/or their metabolites, etc.) and tailor-made consortia of microbial strains should be encouraged. In conclusion, the literature offers many examples of promising BCAs, suggesting that biocontrol can greatly contribute to limit the damage caused by FWB. More efforts should be done to further validate the currently available outcomes, to deepen the knowledge on the most valuable BCAs, and to improve their efficacy by setting up effective formulations, application protocols, and integrated strategies.

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Biosourcing Endophytes as Biocontrol Agents of Wilt Diseases

Ting

2013

Advances in Endophytic Research

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Efficacy of Clay-Based Formulated Serratia in Reducing Inoculum of Fusarium Oxysporum F. Sp. Cubense Tropical Race 4

Cited by 3 publications

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Vanilla Rhizobacteria as Antagonists against Fusarium oxysporum f. sp. vanillae

Vanilla Rhizobacteria as Antagonists against Fusarium oxysporum f. sp. vanillae

Biological Control Agents Against Fusarium Wilt of Banana

Biosourcing Endophytes as Biocontrol Agents of Wilt Diseases

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