Sulphate Adsorption and Desorption Characteristics of Three Ultisols and an Alfisol Developed on Basalts in the Nigerian Savanna

Kparmwang, T.; Esu, I. E.; Chude, V. O.

doi:10.4314/dai.v9i3.15478

Cited by 6 publications

(3 citation statements)

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“…This is reflected by the reduced survival of the sftR mutant in grassland and agricultural soils, which gives an indication of how important the ability to utilize sulphate ester is to microbial fitness in the environment. In forest soils with higher organic matter content, the effect was reduced, possibly because of the lower pH of the forest soil and a resultant higher concentration of adsorbed inorganic sulphate (Martini and Mutters, 1984; Kparmwang et al , 1997). We assume that the microbial switch between sulphate starvation and the assimilation of inorganic sulphate might play a role in regulating fluxes in the soil sulphur reservoir for plant nutrition.…”

Section: Discussionmentioning

confidence: 99%

The LysR‐type regulator SftR is involved in soil survival and sulphate ester metabolism in Pseudomonas putida

Kahnert

Mirleau

Wait

et al. 2002

Environmental Microbiology

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Sulphate esters make up a large proportion of the available sulphur in agricultural soils, and many pseudomonads can desulphurize a range of aryl- and alkylsulphate esters to provide sulphur for growth. After miniTn5 transposon mutagenesis of Pseudomonas putida S-313, we isolated 19 mutants that were defective in cleavage of the chromogenic sulphate ester 5-bromo-4-chloro-3-indoxylsulphate (X-sulphate). Analysis of these strains revealed that they carried independent insertions in a gene cluster that comprised genes for a sulphate ester/sulphonate transporter (atsRBC) a LysR-type regulator (sftR), an oxygenolytic alkylsulphatase (atsK), an arylsulphotransferase (astA) and a putative TonB-dependent receptor (sftP). The SftP protein was localized in the outer membrane, and the arylsulfphotransferase was identified as an intracellular enzyme. Expression of sftR was repressed in the presence of inorganic sulphate, and the sftR gene was required for the expression of atsBC, atsRK and sftP-astA. An sftR mutant was unable to grow with aryl- or alkylsulphate esters in laboratory media and showed significantly reduced survival compared with the parent strain during incubation in Danish agricultural and grassland soils. This effect suggests that sulphate esters are an important sulphur source for microbes in aerobic soils and highlights the importance of the microbial population in the soil sulphur cycle.

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Section: Discussionmentioning

confidence: 99%

The LysR‐type regulator SftR is involved in soil survival and sulphate ester metabolism in Pseudomonas putida

Kahnert

Mirleau

Wait

et al. 2002

Environmental Microbiology

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“…In north and northeast Iran, the crop responses to S have been reported in Golesthan and Khorasan Provinces with low S inputs (Shahsavani 2002). Adsorption by particulate matter influences the solution concentration and transport rate of sulphate (Bolan et al 1987;Curtin and Syers 1990;McGrath and Zhao 1996;Kaparmwang, Esu, and Chude 1997). Thus, the capacity of a soil to sorb sulphate is an important factor that influences sulphate leaching and hence the availability of sulphate to plant.…”

Section: Introductionmentioning

confidence: 99%

Sulphate Adsorption in Soils of North and Northeast Iran

Shahsavani

Ardalan

Sistani

2006

Communications in Soil Science and Plant Analysis

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Gypsum (CaSO 4 . 2H 2 O) is used in agriculture both as a source of calcium (Ca) and sulphate (SO 4 22 ) and as an amendment to improve soil structure. The effect of gypsum on the adsorption of SO 4 22 in irrigated and nonirrigated soils was examined. Almost all of the indigenous sulphate (SO 4 ) in a range of Golesthan and North Khorasan soils with moderate pH values (.6) was found to be present in the soil solution and, as a consequence, was highly susceptible to leaching. The adsorption of sulphate to the soils receiving no gypsum was greater with correlation coefficient of r ¼ 0.91 at 0 kg S ha 21 as compared to the soils received 40 kg ha 21 of gypsum as fertilizer with the value of r ¼ 0.88 in Golesthan Province. The same trend was observed in Khorasan Province with r ¼ 0.79 and r ¼ 0.75 with soils receiving 0 and 40 kg S ha 21 , respectively. The results were more pronounced in irrigated fields for both provinces. The amount of sulphate adsorption in Golesthan Province soils was comparatively greater than soils of Khorasan Province. The results raise questions regarding the efficiency of SO 4 -containing fertilizers in correcting and preventing S deficiency in situations where leaching is a concern.

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“…Retention or adsorption of S in soils is strongly pH dependent (Nodvin et al, 1986) and associated primarily with Fe-and Al-oxides (Espejo-Serrano et al, 1999;Karltun et al, 2000) and allophanic constituents (Parfitt, 1978). The distribution of added S between solid and liquid phase in soils has often been described by Freundlich equation (Weaver et al, 1985;Bhogal et al, 1996;Agbenin, 1997;Kparmwang et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Adsorption and translocation of sulfur in some tropical acid soils

Biswas

Rattan²,

Datta

et al. 2003

Z. Pflanzenernähr. Bodenk.

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SummaryIn view of growing concern about sulfur (S) deficiency, we attempted to study the effect of soil characteristics on the adsorption and translocation of S in soils. Laboratory experiments were conducted with five surface soils collected from three regions in the state of Orissa (Eastern India). In an adsorption study, all the soils were equilibrated with graded doses of potassium sulfate (K 2 SO 4 ). Freundlich adsorption isotherms provided good fit to S adsorption data. Free Fe 2 O 3 and Al 2 O 3 in the soils were primarily responsible for retaining added S in soils. Further, studies on the movement of sulfate-S in 30-cm plexiglass columns, where radio-labeled S along with water (5 cm) was applied as gypsum and K 2 SO 4 , showed that K 2 SO 4 -S migrated deeper than gypsum-S. Sulfur moved deeper in case of initially water-saturated soils than in initially airdry soils.

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Sulphate Adsorption and Desorption Characteristics of Three Ultisols and an Alfisol Developed on Basalts in the Nigerian Savanna

Cited by 6 publications

References 0 publications

The LysR‐type regulator SftR is involved in soil survival and sulphate ester metabolism in Pseudomonas putida

The LysR‐type regulator SftR is involved in soil survival and sulphate ester metabolism in Pseudomonas putida

Sulphate Adsorption in Soils of North and Northeast Iran

Adsorption and translocation of sulfur in some tropical acid soils

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