Levels of Some Anions in Tuber Crops Grown in Benue State, Nigeria

Sulfate assimilation plays a vital role in prototrophic organisms. Orthologues of the alternative sulfate transporter (AstA) gene from Aspergillus nidulans were identified in the fungal plant pathogens Fusarium sambucinum and Fusarium graminearum. By physiological and biochemical analyses, the AstA orthologues were determined to be able to uptake sulfate from the environment. Similarly to astA in A. nidulans, the FsastA gene was found to be regulated by sulfur metabolite repression (SMR) in a sulfur-dependent manner. In contrast, the FgastA transcript was undetectable, however, when the FgastA gene was expressed heterologously in A. nidulans, the translated FgAstA protein acted as a sulfate transporter. Interestingly, F. sambucinum astA expression was remarkably augmented in infected potato tubers, despite the presence abundant sulfate and was found not to be correlated with plant resistance.

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Fusarium sambucinum astA gene expressed during potato infection is a functional orthologue of Aspergillus nidulans astA

Piłsyk

Natorff

Gawinska-Urbanowicz

et al. 2015

Fungal Biology

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Variation of nitrate content among randomly selected taro (Colocasia esculenta (L.) Schott) genotypes and the distribution of nitrate within a corm

Kristl

Ivančič

Mergedus

et al. 2016

Journal of Food Composition and Analysis

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Determination of exchangeable cations and residual concentration of herbicide treated soils and analysis of the in-vitro biodegradation of the herbicides

Sebiomo

2020

Natural and Applied Sciences Journal

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This study determined the effect of Atrazine, Xtravest, Gramoxone and Glyphosate on exchangeable cations and also analysed the in-vitro biodegradation of this herbicides as well as assayed for their residual concentration in soils. Exchangeable cations were analysed in atomic absorption spectrophotometer. Utilisation of herbicides was determined while herbicide degradation and residual concentration of herbicide were analysed using Gas Chromatography. K+, Ca2+, Mg2+, and Na+ declined while Fe2+ and Zn+ accumulated significantly. Bacteria and fungi significantly utilised herbicides as carbon source resulting in herbicide degradation. The lowest herbicide concentration of 118.55 ppm was obtained from atrazine inoculated with bacteria, while the highest herbicide concentration of 449.23 ppm was obtained from xtravest inoculated with fungi. Bacteria and fungi such as: B. subtilis, P. aeruginosa, P. florescences, P. putida, Actinomyces viscous, A. niger, A. tamarii, F. oxysporum, and P. chrysogenum were isolated in all the herbicide treated soils. Continuous herbicide treatment should be avoided because of their ability to persist in soils hence limiting essential nutrients available to plants. Indigenous microorganisms can be employed to remediate soils polluted by herbicides.

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Levels of Some Anions in Tuber Crops Grown in Benue State, Nigeria

Cited by 3 publications

References 22 publications

Fusarium sambucinum astA gene expressed during potato infection is a functional orthologue of Aspergillus nidulans astA

Fusarium sambucinum astA gene expressed during potato infection is a functional orthologue of Aspergillus nidulans astA

Variation of nitrate content among randomly selected taro (Colocasia esculenta (L.) Schott) genotypes and the distribution of nitrate within a corm

Determination of exchangeable cations and residual concentration of herbicide treated soils and analysis of the in-vitro biodegradation of the herbicides

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