DOI: 10.1016/j.watres.2018.08.037
Scopus记录号: 2-s2.0-85053063153
论文题名: Influence of parasitic chytrids on the quantity and quality of algal dissolved organic matter (AOM)
作者: Senga Y. ; Yabe S. ; Nakamura T. ; Kagami M.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 145 起始页码: 346
结束页码: 353
语种: 英语
英文关键词: Algal dissolved organic matter (AOM)
; Carbon cycling
; EEM-PARAFAC
; Humic-like substances
; Parasitic fungi
; Protein-like substances
Scopus关键词: Algae
; Amino acids
; Biogeochemistry
; Dissolution
; Fungi
; Organic carbon
; Photodegradation
; Water analysis
; Carbon cycling
; Dissolved organic carbon
; Dissolved organic matters
; Excitation emission matrices
; Heterotrophic bacterias
; Humic-like substances
; PARAFAC
; Parallel factor analysis
; Chemicals removal (water treatment)
; abundance
; alga
; amino acid
; bacterium
; cell component
; concentration (composition)
; diatom
; dissolved organic carbon
; dissolved organic matter
; fungal disease
; fungus
; humic substance
; infectious disease
; parasitic disease
; protein
; water treatment
; algae
; Bacillariophyta
; Bacteria (microorganisms)
; Fungi
; Synedra
英文摘要: Algae-derived dissolved organic matter (AOM) is an important nutrient source for heterotrophic bacteria, while AOM such as humic substances pose significant challenges during water treatment processing. We hypothesized that the parasitic infection of algae could change the composition and concentration of AOM. This study investigated the quality and quantity of DOM and bacterial abundance in diatom (Synedra) cultures, with and without parasitic fungi (chytrids). The quality of DOM was analyzed using three-dimensional excitation-emission matrix combined with parallel factor analysis (EEM-PARAFAC) and was compared to changes in algal and bacterial cell numbers. Bacterial abundance was higher and dissolved organic carbon concentrations were lower in the diatom cultures infected with parasitic fungi. Among the DOM compounds, the concentrations of tryptophan-like material derived from algae were significantly lower and the concentrations of humic substance-like material were higher in the infected treatment. The parasitic fungi may have consumed tryptophan-like material and stimulated the release of humic substances. These results provide the first evidence that fungal infection may modulate algal–bacterial interactions, which are associated with changes in the nature of AOM. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112429
Appears in Collections: 气候减缓与适应
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作者单位: Faculty of Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan; Graduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai Hodogaya-ku, Yokohama, 240-8501, Japan
Recommended Citation:
Senga Y.,Yabe S.,Nakamura T.,et al. Influence of parasitic chytrids on the quantity and quality of algal dissolved organic matter (AOM)[J]. Water Research,2018-01-01,145