Efficient assimilation of cyanobacterial nitrogen by water hyacinth. (October 2017)

• Record Type: Journal Article
• Authors: Qin, Hongjie; Zhang, Zhiyong; Liu, Minhui; Wang, Yan; Wen, Xuezheng; Yan, Shaohua; Zhang, Yingying; Liu, Haiqin
• Is Part Of: Bioresource technology. Volume 241(2017)
• Page Start: 1197
• Page End: 1200
• Publication Date: 2017-10
• Subjects: 15N tracer technique -- Nitrogen transfer -- Cyanobacteria -- Water hyacinth; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2017.06.104
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Over 87% cyanobacterial N could be assimilated by water hyacinth. Cyanobacterial N super-accumulated in roots of water hyacinth temporarily. Cyanobacterial N re-distributed to different organs of water hyacinth. Abstract: A 15 N labeling technique was used to study nitrogen transfer from cyanobacterium Microcystis aeruginosa to water hyacinth. 15 N atom abundance in M. aeruginosa peaked (15.52%) after cultivation in 15 N-labeled medium for 3 weeks. Over 87% of algal nitrogen was transferred into water hyacinth after the 4-week co-cultivation period. The nitrogen quickly super-accumulated in the water hyacinth roots, and the labeled nitrogen was re-distributed to different organs (i.e., roots, stalks, and leaves). This study provides a new strategy for further research on cyanobacterial bloom control, nitrogen migration, and nitrogen cycle in eutrophic waters.