Suppressing soil-borne Fusarium pathogens of bananas by planting different cultivars of pineapples, with comparisons of the resulting bacterial and fungal communities

Yang, Jason; Ren, Xiangyu; Liu, Manyi; Ping, Fan; Ruan, Yunze; Zhao, Yan; Wang, Beibei; Rongli,

doi:10.1016/j.apsoil.2021.104211

Cited by 8 publications

(8 citation statements)

References 69 publications

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“…Like the results found when farms were compared Ca, Mg, and ECEC also showed differences between affected and healthy plots, highlighting the role of these variables as predisposing factors to FWB [3,10,19,42]. These results indicated that TR4-affected plots present a lower pH value and fewer fertility conditions than the healthy plots, which is evidenced by the higher values of Ca, Mg, and ECEC in healthy plots.…”

Section: Comparative Analysis Through Affected and Healthy Plotssupporting

confidence: 66%

“…Superficial and internal soil drainage (hydraulic conductivity) has been considered a predisposing factor to Foc TR4 since high humidity increases the FWB incidence and severity [3,4,18,19]. Farm 3 presented HC values of 0.41 cm/h, classified as poorly drained soils, while the other two farms showed HC values greater than 1.0 cm/h, considered as moderately well-drained soils [27,39].…”

Section: Comparative Analyses Of Chemical and Physical Properties Amo...mentioning

confidence: 99%

“…Microbial diversity is restricted at low and high soil pH levels and is increased at moderate soil pH levels [43]. pH also affects enzyme activity, and microbial metabolism, thus influencing community composition [19].…”

Section: Comparative Analysis Through Affected and Healthy Plotsmentioning

confidence: 99%

“…It is generally assumed that soils with lower microbial diversity and/or abundance and lower biological activity are more disease-concentrated. In contrast, soils with a higher amount, diversity, and activity of microorganisms are considered suppressive against the disease [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…In general, the following factors have been identified predisposing bananas to Foc TR4 epidemics: (a) waterlogged clayey soils with poor drainage, (b) acidic soils and calciumpoor areas, (c) soils with low organic matter and less microbiome richness, and (d) stressful situations leading to plant defenses reduction, such as poor-quality water, soil salinity, inadequate fertilization, and low temperatures, among others [17,20]. Therefore, integrated FWB management strategies should include the identification of these factors to promote soil suppressiveness together with other practices such as crop rotation, use of cover crops, and use of targeted fertilizer sources, among others [3,18,19,[21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Soil Predisposing Factors to Fusarium oxysporum f.sp Cubense Tropical Race 4 on Banana Crops of La Guajira, Colombia

Rodríguez-Yzquierdo,

Olivares,

González-Ulloa

et al. 2023

Agronomy

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Fusarium wilt of banana caused by the soil-borne fungi Fusarium oxysporum f. sp. cubense, Tropical Race 4 (Foc TR4) (Syn. Fusarium odoratissimum), is a major threat to the global banana industry. Aiming to identify predisposing soil factors for Fusarium wilt of banana (FWB) TR4, the 23 physical and chemical soil properties were studied in three commercial banana farms in La Guajira, Colombia. Disturbed and undisturbed soil samples were collected from areas affected by the disease (affected plots) and disease-free areas (healthy plots). Five repetitions per farm were considered, with a total sample of n = 30. The data were analyzed using one-way analysis of variance (ANOVA). Subsequently, the debiased sparse partial correlation (DSPC) algorithm was applied. Organic matter (OM), pH, calcium (Ca), magnesium (Mg), zinc (Zn), and cation-exchange capacity on the exchange complex (ECEC), showed significant differences between the affected and healthy plots. In addition, the bulk density and saturated hydraulic conductivity (HC) were associated suggesting that physical attributes, such as soil compaction and poor drainage, create favorable conditions for FWB. According to the DSPC algorithm, the HC variable presented a grade of 5 and an intermediation of 14.67, which indicates that it has significant associations with BD, sand, porosity, ECEC, and OM and plays a critical role in the connection of other variables in the network and the differentiation of healthy and affected plots. These findings establish a baseline of information under field conditions in Colombia, which can be used to design soil management strategies to mitigate the detrimental effects of Foc TR4 by creating less favorable conditions for the pathogen.

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Section: Comparative Analysis Through Affected and Healthy Plotssupporting

confidence: 66%