Analysis of soil bacterial communities and physicochemical properties associated with Fusarium wilt disease of banana in Malaysia

Jamil, Fatin Nadiah; Hashim, Amalia Mohd; Yusof, Mohd Termizi; Saidi, Noor Baity

doi:10.1038/s41598-022-04886-9

Cited by 17 publications

(17 citation statements)

References 80 publications

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“…Carbohydrate metabolism is the dominant bacterial function in halophytes rhizosphere bacteria and light-exposure rhizosphere bacteria [ 63 , 64 ]. Notably, rhizosphere bacteria were significantly affected by soil physicochemical characteristics [ 65 , 66 ]. In our study, bacterial number and Shannon index correlated significantly positively with pH, total N, total P, available K, and NH4+-N.…”

Section: Discussionmentioning

confidence: 99%

The effect of white grub (Maladera Verticalis) larvae feeding on rhizosphere microbial characterization of aerobic rice (Oryza sativa L.) in Puer City, Yunnan Province, China

Wang,

Li,

Yang

et al. 2024

BMC Microbiol

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Background Rhizosphere microorganisms are vital in plants’ growth and development and these beneficial microbes are recruited to the root-zone soil when experiencing various environmental stresses. However, the effect of white grub (Maladera verticalis) larvae feeding on the structure and function of rhizosphere microbial communities of aerobic rice (Oryza sativa L.) is unclear. Results In this study, we compared physicochemical properties, enzyme activities, and microbial communities using 18 samples under healthy and M. verticalis larvae-feeding aerobic rice rhizosphere soils at the Yunnan of China. 16 S rRNA and ITS amplicons were sequenced using Illumina high throughput sequencing. M. verticalis larvae feeding on aerobic rice can influence rhizosphere soil physicochemical properties and enzyme activities, which also change rhizosphere microbial communities. The healthy and M. verticalis larvae-feeding aerobic rice rhizosphere soil microorganisms had distinct genus signatures, such as possible_genus_04 and Knoellia genera in healthy aerobic rice rhizosphere soils and norank_f__SC − I−84 and norank_f__Roseiflexaceae genera in M. verticalis larvae-feeding aerobic rice rhizosphere soils. The pathway of the metabolism of terpenoids and polyketides and carbohydrate metabolism in rhizosphere bacteria were significantly decreased after M. verticalis larvae feeding. Fungal parasite–wood saprotroph and fungal parasites were significantly decreased after M. verticalis larvae feeding, and plant pathogen–wood saprotroph and animal pathogen–undefined saprotroph were increased after larvae feeding. Additionally, the relative abundance of Bradyrhizobium and Talaromyces genera gradually increased with the elevation of the larvae density. Bacterial and fungal communities significantly correlated with soil physicochemical properties and enzyme activities, respectively. Conclusions Based on the results we provide new insight for understanding the adaptation of aerobic rice to M. verticalis larvae feeding via regulating the rhizosphere environment, which would allow us to facilitate translation to more effective measures.

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Section: Discussionmentioning

confidence: 99%

The effect of white grub (Maladera Verticalis) larvae feeding on rhizosphere microbial characterization of aerobic rice (Oryza sativa L.) in Puer City, Yunnan Province, China

Wang,

Li,

Yang

et al. 2024

BMC Microbiol

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“…The concentrated rhizosphere soils were stored at −80 °C until DNA extraction. According to previous literature, the rhizosphere bacteria community provides plants with many benefits, including suppressing soil-borne diseases by stimulating phytohormones production, competing with soil-borne pathogens for nutrients, direct microbial competition, or activating microbiota-modulated immunity in plants. , Thus, we chose to specifically focus on rhizosphere bacteria communities. The method of rhizosphere bacteria characterization using 16S rRNA gene sequencing is described in Text S5.…”

Section: Methodsmentioning

confidence: 99%

Therapeutic Delivery of Nanoscale Sulfur to Suppress Disease in Tomatoes: In Vitro Imaging and Orthogonal Mechanistic Investigation

et al. 2022

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Nanoscale sulfur can be a multifunctional agricultural amendment to enhance crop nutrition and suppress disease. Pristine (nS) and stearic acid coated (cS) sulfur nanoparticles were added to soil planted with tomatoes (Solanum lycopersicum) at 200 mg/L soil and infested with Fusarium oxysporum. Bulk sulfur, ionic sulfate, and healthy controls were included. Orthogonal end points were measured in two greenhouse experiments, including agronomic and photosynthetic parameters, disease severity/suppression, mechanistic biochemical and molecular end points including the time-dependent expression of 13 genes related to two S bioassimilation and pathogenesis-response, and metabolomic profiles. Disease reduced the plant biomass by up to 87%, but nS and cS amendment significantly reduced disease as determined by area-under-the-disease-progress curve by 54 and 56%, respectively. An increase in planta S accumulation was evident, with size-specific translocation ratios suggesting different uptake mechanisms. In vivo two-photon microscopy and time-dependent gene expression revealed a nanoscale-specific elemental S bioassimilation pathway within the plant that is separate from traditional sulfate accumulation. These findings correlate well with time-dependent metabolomic profiling, which exhibited increased disease resistance and plant immunity related metabolites only with nanoscale treatment. The linked gene expression and metabolomics data demonstrate a time-sensitive physiological window where nanoscale stimulation of plant immunity will be effective. These findings provide mechanistic understandings of nonmetal nanomaterial-based suppression of plant disease and significantly advance sustainable nanoenabled agricultural strategies to increase food production.

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“…Additionally, multi-partner collaborations have been established to develop improved banana varieties; a few new transgenic lines are currently being trialed in open fields (Pua et al 2019). Joining the international research initiatives, Malaysian universities and research institutes have carried out promising research to improve disease tolerance for local banana varieties (Baharum et al 2018;Jamil et al 2022). As these initiatives are preliminary, more funding incentives should be allocated to sustain such endeavors, safeguarding the future of Malaysia's banana industry.…”

Section: Prospects Of Emerging Technologies To Overcome Challenges In...mentioning

confidence: 99%

Perceptions on the Challenges of Banana Cultivation and Bio-based Technology Use Among Malaysian Smallholder Farmers

Jalaluddin¹,

Othman²

2022

AJAD

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Bananas are one of the most commonly grown fruit crops in Malaysia, but local production has declined in recent years. Through site visits and interviews with 74 smallholder banana farmers, this study sought to know the current situation of the local smallholder banana industry, the challenges faced in commercial banana cultivation, and the use of bio-based technologies to address the challenges. The farmers cited increasing production costs, pests and diseases, and yield uncertainties as major challenges to their plantations’ survival. While they have been using farming techniques, including bio-based technologies, to improve fruit yield, the farmers perceived the current technologies as inadequate in mitigating the impacts of frequent disease outbreaks. The interviews also reveal farmers’ misconceptions on the nature of tissue culture technology, reflecting their poor understanding of how tissue culture works, thus, putting banana farms at risk. Overall, this study’s direct engagements with banana farmers show that correct information and access to technology are a rare privilege for smallholders. Therefore, coordinated efforts to substantially increase support for smallholder farmers is paramount.

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Analysis of soil bacterial communities and physicochemical properties associated with Fusarium wilt disease of banana in Malaysia

Cited by 17 publications

References 80 publications

The effect of white grub (Maladera Verticalis) larvae feeding on rhizosphere microbial characterization of aerobic rice (Oryza sativa L.) in Puer City, Yunnan Province, China

The effect of white grub (Maladera Verticalis) larvae feeding on rhizosphere microbial characterization of aerobic rice (Oryza sativa L.) in Puer City, Yunnan Province, China

Therapeutic Delivery of Nanoscale Sulfur to Suppress Disease in Tomatoes: In Vitro Imaging and Orthogonal Mechanistic Investigation

Perceptions on the Challenges of Banana Cultivation and Bio-based Technology Use Among Malaysian Smallholder Farmers

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