Availability of Detergent, Biodegraded by Bacillus subtilis, to Zea mays Nutrition | ||||
| Egyptian Journal of Botany | ||||
| Article 1, Volume 54, Issue 2, December 2014, Page 169-184 PDF (902.99 K) | ||||
| Document Type: Regular issue (Original Article) | ||||
| DOI: 10.21608/ejbo.2014.486 | ||||
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| Abstract | ||||
| Acommon household detergent (Persil) was incubated with ………Bacillus subtilis.for 7 days. Phosphorus in the filtrate was used as a base for a complete nutrient solution for maize; in comparison with a standard nutrient solution containing KH2PO4 as a phosphorus source. Incubated detergent in low doses (up to the equivalent of 0.35 and 0.2 mM P for shoot and root, respectively) was beneficial to maize and was even superior to KH2PO4; but higher doses imposed a harmful effect. Uptake of P by maize was slightly greater from KH2PO4 than from incubated detergent. Uptake of K and Ca was reduced, while that of Na was increased by increasing P level in the medium. The reduction in K concentration of plant tissues was more pronounced in case of KH2PO4- than that of incubated detergent-treated plants. Incubated detergent favored Ca transport to the shoot, compared with KH2PO4. Nitrogen uptake was enhanced in response to increasing P level and this was associated with enhancing assimilation of nitrate (decreasing NO3-/total N ratio) in shoot but retarding assimilation (increasing NO3-/total N ratio) in roots. | ||||
| Keywords | ||||
| Bacillus subtilis; biodegradation; detergent; Maize; Nutrients | ||||
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