Combined application of botanical formulations and biocontrol agents for the management of Fusarium oxysporum f. sp. cubense (Foc) causing Fusarium wilt in banana

Akila, R.; Rajendran, L.; Harish, S.; Saveetha, K.; Raguchander, T.; Samiyappan, R.

doi:10.1016/j.biocontrol.2011.02.010

Cited by 105 publications

(57 citation statements)

References 45 publications

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“…Plant-derived products also known as "botanicals", act as fungal inhibitors and may be used in fields in prevention practices. Akila et al (2011) reported the use of compatible compositions of botanicals (Wanis EC, Damet 50 EC) and biocontrol agents (P. fluorescens 1, Pf1 and Bacillus subtilis, TRC 54) in managing Fusarium wilt disease in greenhouse and field conditions. Banana cultivar Rasthali treated with Wanis 20 EC C Pf1 C TRC 54 showed 64% and 75% less wilt prevalence under greenhouse and field conditions, respectively (Akila et al 2011).…”

Section: Management Of Fusarium Wilt Diseasementioning

confidence: 99%

Fusarium wilt of banana: biology, epidemiology and management

Ghag

Shekhawat

Ganapathi

2015

International Journal of Pest Management

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Fusarium oxysporum is a soil borne hyphomycete that causes vascular wilts in several crop plants. A variety of remedial measures such as the use of fungicides, soil amendments and biological antagonists have proved insufficient in controlling F. oxysporum. Ever since it was first reported in banana crop, the only effective control strategy known is planting of resistant cultivars. However, presumably due to the high mutation rates and rapid co-evolution with its host, Fusarium wilt has surmounted host defense barriers and has already begun infecting even the resistant Cavendish varieties that dominate export markets worldwide. Transgenic banana plants showing enhanced resistance to Fusarium wilt have been developed in recent past, but they remain largely confined to the laboratory. The importance of banana as source of food and income in developing countries world over and the need to develop Fusarium wilt tolerant cultivars by novel biotechnological approaches is detailed herein. In this communication, we review the biology and management of Fusarium wilt in banana with the aim of providing the baseline of information to encourage much needed research on integrated management of this destructive banana crop disease problem.

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Section: Management Of Fusarium Wilt Diseasementioning

confidence: 99%

Fusarium wilt of banana: biology, epidemiology and management

Ghag

Shekhawat

Ganapathi

2015

International Journal of Pest Management

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“…In this review we do include references to biocontrol studies but want to stress that biocontrol can be the result of many mechanisms of which ISR is only one. Studies testing whether effects of particular PGPR strains on plant defense observed under sterile greenhouse conditions can be observed in the field as well have yielded mixed results (e.g., Guo et al, 2004; Akila et al, 2011). When differences are observed, these could be due to the several biotic and abiotic factors which differ between greenhouse and the field.…”

Section: Pgpr and Plant Defensementioning

confidence: 99%

Getting the ecology into interactions between plants and the plant growth-promoting bacterium Pseudomonas fluorescens

Hol¹,

Bezemer²,

Biere³

2013

Front. Plant Sci.

118

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Plant growth-promoting rhizobacteria (PGPR) are increasingly appreciated for their contributions to primary productivity through promotion of growth and triggering of induced systemic resistance in plants. Here we focus on the beneficial effects of one particular species of PGPR (Pseudomonas fluorescens) on plants through induced plant defense. This model organism has provided much understanding of the underlying molecular mechanisms of PGPR-induced plant defense. However, this knowledge can only be appreciated at full value once we know to what extent these mechanisms also occur under more realistic, species-diverse conditions as are occurring in the plant rhizosphere. To provide the necessary ecological context, we review the literature to compare the effect of P. fluorescens on induced plant defense when it is present as a single species or in combination with other soil dwelling species. Specifically, we discuss combinations with other plant mutualists (bacterial or fungal), plant pathogens (bacterial or fungal), bacterivores (nematode or protozoa), and decomposers. Synergistic interactions between P. fluorescens and other plant mutualists are much more commonly reported than antagonistic interactions. Recent developments have enabled screenings of P. fluorescens genomes for defense traits and this could help with selection of strains with likely positive interactions on biocontrol. However, studies that examine the effects of multiple herbivores, pathogens, or herbivores and pathogens together on the effectiveness of PGPR to induce plant defenses are underrepresented and we are not aware of any study that has examined interactions between P. fluorescens and bacterivores or decomposers. As co-occurring soil organisms can enhance but also reduce the effectiveness of PGPR, a better understanding of the biotic factors modulating P. fluorescens–plant interactions will improve the effectiveness of introducing P. fluorescens to enhance plant production and defense.

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“…The simultaneous implementation of several active ingredients in one commercial product is certainly a way to guarantee the global efficacy under varying conditions. A microbial strain can be used together with other strains, with natural extracts or other none chemically transformed products or with chemical pesticides (Shanmugam & Kanoujia, 2011;Liu et al, 2011;Akila et al, 2011;Kondoh et al, 2001). These combinations are generally more effective and reliable.…”

Section: Improving Biopesticides and Conclusive Statementsmentioning

confidence: 99%