Soil microbial community changes associated with ground cover management in cultivation of Ducasse banana (Musa sp. ABB, Pisang Awak subgroup) and suppression of Fusarium oxysporum

Rames, E.; Pattison, Anthony B.; Czislowski, Elizabeth; Smith, Mike

doi:10.1007/s13313-018-0578-4

Cited by 7 publications

(6 citation statements)

References 37 publications

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“…Yet, microbiomics is waiting to be used in a more frequent way in the research field of banana, FWB, and biocontrol. Recent studies ( 16S rRNA and ITS amplicon sequencing profiling) have been focused on endophytic bacterial communities present in different parts and micro-environments of banana plants (Köberl et al, 2015, 2017; Zhai et al, 2016; Suhaimi et al, 2017), as well as in the microbiota of banana rhizosphere (Fu et al, 2016a) and soil (Xue et al, 2015; Rames et al, 2018).…”

Section: Fusarium Wilt Of Banana and The Banana-associated Microbiomesmentioning

confidence: 99%

“…In such pot-experiment, 2 years of biofertilizer application manipulated the composition of the rhizosphere microbial community and induced the FWB suppression. The relationship among suppression of Foc under field conditions, the use of ground cover management, and changes in the soil microbiome was also investigated in “Ducasse” banana (synonym “Pisang Awak,” ABB) (Pattison et al, 2014; Rames et al, 2018). Results showed that suppression of FWB tended to increase over time when the banana was cultivated with ground covers compared to bare soil conditions.…”

Section: Fusarium Wilt Of Banana and The Banana-associated Microbiomesmentioning

confidence: 99%

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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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Section: Fusarium Wilt Of Banana and The Banana-associated Microbiomesmentioning

confidence: 99%

Section: Fusarium Wilt Of Banana and The Banana-associated Microbiomesmentioning

confidence: 99%

Biological Control Agents Against Fusarium Wilt of Banana

et al. 2019

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“…Furthermore, FJ enjoys the dual advantages of good taste and high nutrient content (Wang et al, 2019 ), and its consumption is assumed to be associated with a strong reduction in the risk of colorectal cancer (Deneo-Pellegrini et al, 1996 ), which harbors antifungal (Ranasinghe et al, 2002 ) and antibacterial effects (Ono et al, 1998 ). However, the local FJ varieties in Hainan have disadvantages to some degree, such as higher plants, a longer growth cycle, and being vulnerable to Sigatoka disease (Huang et al, 2010 ; Pattison et al, 2014 ; Guo et al, 2015 ; Rames et al, 2018 ; Pegg et al, 2019 ; Shao et al, 2020 ), which limits the widespread cultivation of this banana plant. The traditional breeding method of genetic crossing has been applied with difficulty to dessert banana varieties, given the genetic characteristics of banana in general: parthenocarpic, polyploidy, irregular meiotic behavior, low fertility, and seed viability, among others (Heslop-Harrison and Schwarzacher, 2007 ; Jeridi et al, 2012 ; Arinaitwe et al, 2019 ; Batte et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

A Novel Banana Mutant “RF 1” (Musa spp. ABB, Pisang Awak Subgroup) for Improved Agronomic Traits and Enhanced Cold Tolerance and Disease Resistance

Wang

et al. 2021

Front. Plant Sci.

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Banana is a major fruit crop grown in tropical and subtropical regions worldwide. Among cultivars, “FenJiao, FJ” (Musa spp. ABB, Pisang Awak subgroup) is a popular variety of bananas, due to its better sugar-acid blend and relatively small fruit shape. However, because the traditional FJ variety grows relatively high in height, it is vulnerable to lodging and unsuitable for harvesting. In this study, we sought desirable banana mutants by carrying out ethyl methanesulfonate (EMS) mutagenesis with the FJ cultivar. After the FJ shoot tips had been treated with 0.8% (v/v) EMS for 4 h, we obtained a stably inherited mutant, here called “ReFen 1” (RF1), and also observed a semi-dwarfing phenotype. Compared with the wild type (FJ), this RF1 mutant featured consistently improved agronomic traits during 5-year field experiments conducted in three distinct locations in China. Notably, the RF1 plants showed significantly enhanced cold tolerance and Sigatoka disease resistance, mainly due to a substantially increased soluble content of sugar and greater starch accumulation along with reduced cellulose deposition. Therefore, this study not only demonstrated how a powerful genetic strategy can be used in fruit crop breeding but also provided insight into the identification of novel genes for agronomic trait improvement in bananas and beyond.

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“…Case studies have shown that subtropical banana growers have slowed the development of FWB, by eradicating symptomatic plants and replanting the affected area with a ground cover like molasses grass (Melinis minutiflora) (Pattison et al, 2014;Wang et al, 2015;Fu et al, 2017). Groundcovers act to reduce run-off, erosion and the spread of disease propagules and to increase microbial competition with Foc, thereby slowing pathogen incidence and severity (Pattison et al, 2014;Rames et al, 2018). The planting of resistant banana cultivars is the most effective approach to manage FWB.…”

Section: Management Options and Challengesmentioning

confidence: 99%

Current state of Fusarium wilt of banana in the subtropics

Dita¹,

Teixeira²,

O’Neill³

et al. 2020

Acta Hortic.

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Subtropically grown bananas have differential interactions with Fusarium oxysporum f. sp. cubense (Foc), causal agent of Fusarium wilt of banana (FWB), when compared with those grown in the tropics. The designation 'subtropical' race 4 (SR4) was assigned to Foc strains able to infect Cavendish (AAA) cultivars in the subtropics, but not in the tropics. 'Tropical' race 4 (TR4) gained prominence with the appearance and spread of a Foc strain that severely affects Cavendish bananas in both the tropics and subtropics. Recent surveys in Asia revealed TR4 as the predominant strain both in the tropics and subtropics, affecting not only Cavendish, but also many other cultivars. In many subtropical banana zones, Foc races 1 and 2, which complete the racial structure of Foc, are also found and cause severe losses in certain market-preferred dessert bananas. Environmental constraints increase the susceptibility of Cavendish bananas to SR4. However, the role of abiotic stresses in cultivar susceptibility to FWB needs to be better understood. It is not clear why some Foc strains only affect Cavendish in the subtropics, and what other factors, including pathogen virulence and microbial functional diversity, might be driving disease epidemics. Field experience suggests that optimum soil and water management strategies can reduce disease intensity, but targeted studies are needed to understand the virulence of different strains, the impact of fluctuating temperatures, soil pH, organic matter breakdown and soil microbial dynamics. Research findings on the epidemiology and management of FWB in Australia, Brazil, China, India and South Africa are discussed to propose priority areas for the development of improved disease management practices.

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Soil microbial community changes associated with ground cover management in cultivation of Ducasse banana (Musa sp. ABB, Pisang Awak subgroup) and suppression of Fusarium oxysporum

Cited by 7 publications

References 37 publications

Biological Control Agents Against Fusarium Wilt of Banana

Biological Control Agents Against Fusarium Wilt of Banana

A Novel Banana Mutant “RF 1” (Musa spp. ABB, Pisang Awak Subgroup) for Improved Agronomic Traits and Enhanced Cold Tolerance and Disease Resistance

Current state of Fusarium wilt of banana in the subtropics

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