Biodegradation by Co‐inoculated Bacteria and Fungi Alleviates Adverse Effects of Red‐S3B on Growth and Nitrogen Uptake of Wheat. Issue 3 (19th March 2020)

• Record Type: Journal Article
• Authors: Shakeel, Maryam; Imran, Muhammad; Ashraf, Muhammad; Ullah, Najeeb
• Is Part Of: Clean. Volume 48:Issue 3(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-03-19
• Subjects: Aspergillus -- azo dyes -- nitrogen uptake -- Shewanella -- textile wastewater; Water quality -- Periodicals; Water -- Pollution -- Periodicals; Pollution -- Periodicals; Bioremediation -- Periodicals; Sewage -- Periodicals; Water chemistry -- Periodicals; 333.7205
• DOI: 10.1002/clen.201900305
• Languages: English
• ISSNs: 1863-0650

Abstract

Abstract: Textile wastewater contains huge quantities of nitrogen (N)‐containing azo‐dyes. Irrigation of crops with such wastewater adds toxic dyes into our healthy soils. One of the ways to prevent their entry to soils could be these waters after the dyes' biodegradation. Therefore, the present study was conducted to evaluate the impact of textile dyes on wheat growth, dye degradation efficiency of bacteria‐fungi consortium, and alleviation of dye toxicity in wheat by treatment with microbial consortium. Among dyes, Red‐S3B (3.19% N) was found to be the most toxic to germination and growth of seven‐day‐old wheat seedlings. Shewanella sp. NIAB‐BM15 and Aspergillus terreus NIAB‐FM10 were found to be efficient degraders of Red‐S3B. Their consortium completely decolorized 500 mg L −1 Red‐S3B within 4 h. Irrigation with Red‐S3B‐contaminated water after treatment with developed consortium increased root length, shoot length, root biomass, and shoot biomass of 30‐day‐old wheat seedlings by 47, 18, 6, and 25%, respectively, than untreated water. Moreover, irrigation after microbial treatment of dye‐contaminated water resulted in 20 and 51% increase in shoot N content and N uptake, respectively, than untreated water. Thus, co‐inoculation of bacteria and fungi could be a useful bioremediation strategy for the treatment of azo‐dye‐polluted water. Abstract : Untreated wastewater originating from textile dyeing units comprises huge quantities of nitrogen (N)‐containing azo‐dyes, for example, Red‐S3B. The textile dye Red‐S3B is highly toxic to wheat at germination and seedling stages. However, irrigation after treatment of Red‐S3B contaminated water with bacteria–fungi consortium alleviates toxic effects to wheat and improves N uptake of 30‐day‐old seedlings.