Iron Sulphide Accumulation in the Rhizosphere of Wetland Rice (Oryza sativa L.) as the Result of Microbial Activities

Jacq, Vincent; Prade, K.; Ottow, J. C. G.

doi:10.1016/b978-0-444-88900-3.50049-7

Cited by 18 publications

(30 citation statements)

References 15 publications

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“…SRB have been traditionally considered as strict anaerobes [16] [42]. However, in the present study, the SRB population number in the soil of P1, P2 and P3 drained microplots increased slightly as compared to the control (18.45%, 1.06%, 8.76%, respectively) indicating that some among the SRB can survive and grow in aerobic compartments in the presence of low pressure of oxygen where a surplus of oxygen is released by drainage and by healthy roots [38] [43].…”

Section: Impact Of Drainage On Srb Populations' Development and Activitycontrasting

confidence: 48%

“…Indeed, sulfide toxicity depends on the strength of rice root oxidizing power, H 2 S concentration in the soil solution and root health [21] [38].…”

Section: Impact Of Drainage On Fkr 19 Rice Yieldmentioning

confidence: 99%

“…Dianou and Traoré [19] reported also that populations increased gradually with fluctuations from transplanting day to rice flowering and maturity stages in the soil near rice roots during paddy plots experiments. Dianou and Traoré [19] and Jacq et al [38] showed that bacterial population number could reach values of 10 7 to 10 9 /g dry soil in most of paddy plot soils of Senegal and Burkina Faso, from rice tilling and flowering to maturity stages, respectively. The rice heading and repining periods which correspond to the highest level of reduced soil conditions in paddy flooded soil, may be conducive to the growth of SRB as underlined Dianou and Traoré [19].…”

Section: Effects Of Rice Plant On Srb Populations' Dynamic and Activitymentioning

confidence: 99%

“…The rice heading and repining periods which correspond to the highest level of reduced soil conditions in paddy flooded soil, may be conducive to the growth of SRB as underlined Dianou and Traoré [19]. Thus, the high physiological activity of rice plant at these stages may result in the production of more substrates available for bacterial growth [19] [20] [38].…”

Section: Effects Of Rice Plant On Srb Populations' Dynamic and Activitymentioning

confidence: 99%

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Dynamics and Activity of Sulfate-Reducing Bacterial Populations in Paddy Soil under Subsurface Drainage: Case Study of Kamboinse in Burkina Faso

Otoidobiga¹,

Keïta²,

Yacouba³

et al. 2015

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Sulfide toxicity is a common disease generally associated with iron toxicity which occurs in rice fields when the Sulfate-Reducing Bacteria (SRB) produce sulfides ions in anaerobic conditions. The high quantity of sulfides ions in the soil solution upsets the mineral element balance in the rice, affects its growth and causes crop yield losses. In Burkina Faso, many rice field soils are abandoned due to sulfides toxicity. The present study was developed to evaluate the impact of subsurface drainage on SRB dynamics and activity during rice cultivation and the incidence on rice production. Twelve concrete microplots with a clay-loam soil and a rice variety susceptible to sulfides toxicity (FKR 19) were used for the experiment. Soil in microplots was drained for 7 days (P1), 14 days (P2), and 21 days (P3), respectively. Control (T) microplots without drainage were prepared similarly. The evolution of SRB populations and the content of sulfides ions in the paddy soil and in soil near rice roots were monitored throughout the cultural cycle using MPN and colorimetric methods, respectively. Data obtained were analyzed in relation to drainage frequency, rice growth stage, and rice yield using the Student's t-test and XLSTAT 7.5.2 statistical software. From the results obtained, the subsurface drainage did not affect significantly SRB populations (P = 0.187). However, the drainage affected significantly sulfides concentration in the soil near rice roots (P = 0.032). The concentration of sulfides (P < 0.0001) in soil near rice roots and the number of SRB (P < 0.0001) were significantly higher during the rice tillering and maturity stages. Although no significant difference was observed for rice yield among treatments (P = 0.209), the P2 * Corresponding author. C. H. Otoidobiga et al. 1394subsurface drainage showed the highest yield and a low concentration of sulfides in soil near rice roots.

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Section: Impact Of Drainage On Srb Populations' Development and Activitycontrasting

confidence: 48%

“…Indeed, sulfide toxicity depends on the strength of rice root oxidizing power, H 2 S concentration in the soil solution and root health [21] [38].…”

Section: Impact Of Drainage On Fkr 19 Rice Yieldmentioning

confidence: 99%

Section: Effects Of Rice Plant On Srb Populations' Dynamic and Activitymentioning

confidence: 99%

Section: Effects Of Rice Plant On Srb Populations' Dynamic and Activitymentioning

confidence: 99%

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Dynamics and Activity of Sulfate-Reducing Bacterial Populations in Paddy Soil under Subsurface Drainage: Case Study of Kamboinse in Burkina Faso

Otoidobiga¹,

Keïta²,

Yacouba³

et al. 2015

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“…1). This result shows that, despite the aeration mechanism of the roots, iron-reduction processes in the bulk soil are stimulated by the physiological activity and by the growth of rice roots (Jacq et al, 2000).…”

Section: Highly Soluble Fe Chelatementioning

confidence: 82%

Dynamics of Iron in Rhizosphere

Patil¹,

Yogesh²,

Hamsa³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Effects of sulfate and sulfide on the life cycle ofZizania palustrisin hydroponic and mesocosm experiments

Pastor

Dewey

Johnson

et al. 2017

Ecological Applications

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Under oxygenated conditions, sulfate is relatively non-toxic to aquatic plants. However, in water-saturated soils, which are usually anoxic, sulfate can be reduced to toxic sulfide. Although the direct effects of sulfate and sulfide on the physiology of a few plant species have been studied in some detail, their cumulative effects on a plant's life cycle through inhibition of seed germination, seedling survival, growth, and seed production have been less well studied. We investigated the effect of sulfate and sulfide on the life cycle of wild rice (Zizania palustris L.) in hydroponic solutions and in outdoor mesocosms with sediment from a wild rice lake. In hydroponic solutions, sulfate had no effect on seed germination or juvenile seedling growth and development, but sulfide greatly reduced juvenile seedling growth and development at concentrations greater than 320 μg/L. In outdoor mesocosms, sulfate additions to overlying water increased sulfide production in sediments. Wild rice seedling emergence, seedling survival, biomass growth, viable seed production, and seed mass all declined with sulfate additions and hence sulfide concentrations in sediment. These declines grew steeper during the course of the 5 yr of the mesocosm experiment and wild rice populations became extinct in most tanks with concentrations of 250 mg SO /L or greater in the overlying water. Iron sulfide precipitated on the roots of wild rice plants, especially at high sulfate application rates. These precipitates, or the encroachment of reducing conditions that they indicate, may impede nutrient uptake and be partly responsible for the reduced seed production and viability.

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Iron Sulphide Accumulation in the Rhizosphere of Wetland Rice (Oryza sativa L.) as the Result of Microbial Activities

Cited by 18 publications

References 15 publications

Dynamics and Activity of Sulfate-Reducing Bacterial Populations in Paddy Soil under Subsurface Drainage: Case Study of Kamboinse in Burkina Faso

Dynamics and Activity of Sulfate-Reducing Bacterial Populations in Paddy Soil under Subsurface Drainage: Case Study of Kamboinse in Burkina Faso

Dynamics of Iron in Rhizosphere

Effects of sulfate and sulfide on the life cycle ofZizania palustrisin hydroponic and mesocosm experiments

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