The Growth of Vallisneria natans and Its Epiphytic Biofilm in Simulated Nutrient-Rich Flowing Water

被引:4
作者
Ren, Liman [1 ]
Gao, Yan [2 ]
Hu, Zhixin [3 ]
Jiang, Xue [1 ]
Yang, Liuyan [1 ]
机构
[1] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Peoples R China
[2] Nanjing Tech Univ, Sch Environm Sci & Engn, Nanjing 211816, Peoples R China
[3] Nanjing Inst Technol, Sch Environm Engn, Nanjing 211167, Peoples R China
基金
中国国家自然科学基金;
关键词
water flow; Vallisneria natans; growth; epiphytic biofilm; bacteria; algae; PLANT-GROWTH; MACROPHYTE; COMMUNITIES; METABOLISM; TOXICITY; REMOVAL; STRESS; CARBON;
D O I
10.3390/w14142236
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This paper investigates the effects of water flow on the growth and physiological indicators of the submerged macrophyte, Vallisneria natans, and the bacteria and algae community composition on its epiphytic biofilm-covered leaves. The authors set up a simulated flowing water laboratory experiment testing high nitrogen (N) and phosphorus (P) concentrations. Total chlorophyll and dissolved oxygen (DO) was significantly enhanced, and turbidity was reduced, thereby accelerating the growth of V. natans. These experiments were compared to another set of observations on a static group. The accumulation of malonaldehyde (MDA) in the dynamic groups was significantly higher than that in the static group. As an antioxidant stress response, the total superoxide dismutase (T-SOD) was also induced in plants exposed to nutrient-rich flowing water. The results of 16S rRNA high-throughput sequencing analyses showed that the water flow increased the bacteria community diversity of biofilm-producing bacteria with N and P removing bacteria, carbon cycle bacteria, and plant growth-promoting rhizobacteria on the epiphytic biofilm. This research determined that water flow alleviates the adverse effects of eutrophication when V. natans grows in water containing high N and P concentrations. Water flow also inhibits the growth of cyanobacteria (also referred to as blue-green algae) in epiphytic biofilm. The ecological factor of water flow, such as water disturbance and aeration measures, could alleviate the adverse effect of eutrophic water by providing a new way to restore submerged macrophytes, such as V. natans, in eutrophic water.
引用
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页数:19
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共 41 条
  • [21] Reuse of treated wastewater in viticulture: Can it be an alternative source of nutrient-rich water?
    Etchebarne, F.
    Aveni, P.
    Escudier, J. -L.
    Ojeda, H.
    [J]. 41ST WORLD CONGRESS OF VINE AND WINE, 2019, 12
  • [22] Growth and nutrient dynamics of soft-stem bulrush in constructed wetlands treating nutrient-rich wastewaters
    Tanner C.C.
    [J]. Wetlands Ecology and Management, 2001, 9 (1) : 49 - 73
  • [23] Effects of benthic fish and light regimes on water quality and the growth of Vallisneria natans with two sediment types
    Su, Hong
    Zheng, Wenhui
    Li, Mingfan
    Wang, Chao
    Fu, Guanbao
    Le, Ruijie
    Sun, Gang
    [J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (29) : 73560 - 73569
  • [24] Root growth and plant biomass in Lolium perenne exploring a nutrient-rich patch in soil
    Ryoji Nakamura
    Naoki Kachi
    Jun-Ichirou Suzuki
    [J]. Journal of Plant Research, 2008, 121 : 547 - 557
  • [25] Root growth and plant biomass in Lolium perenne exploring a nutrient-rich patch in soil
    Nakamura, Ryoji
    Kachi, Naoki
    Suzuki, Jun-Ichirou
    [J]. JOURNAL OF PLANT RESEARCH, 2008, 121 (06) : 547 - 557
  • [26] Relationships between allometric patterns of the submerged macrophyte Vallisneria natans, its stoichiometric characteristics, and the water exchange rate
    Jin, Ling
    Gu, Yang
    Yang, Tianmei
    Wu, Qihang
    Yuan, Duanyang
    Xie, Mingli
    Chang, Shutong
    Pan, Ying
    [J]. ECOLOGICAL INDICATORS, 2021, 131
  • [27] Analysis of growth, carbohydrate and photosynthetic characteristics of Vallisneria natans (Lour.) Hara induced by a change in water depth
    Wei, Hua
    [J]. FUNDAMENTAL AND APPLIED LIMNOLOGY, 2019, 193 (02) : 155 - 165
  • [28] Optimization of culturing conditions and selection of species for the use of halophytes as biofilter for nutrient-rich saline water
    Buhmann, Anne K.
    Waller, Uwe
    Wecker, Bert
    Papenbrock, Jutta
    [J]. AGRICULTURAL WATER MANAGEMENT, 2015, 149 : 102 - 114
  • [29] Effects of Underwater Lighting Time on the Growth of Vallisneria spinulosa Yan and Its Water Restoration Process
    Wei, Mengyi
    Zhao, Jinshan
    Zhou, Xiaolin
    Li, Fengdan
    Zhao, Min
    Zheng, Xiangyong
    Tang, Ye
    Yang, Chang
    Jin, Zhenmin
    Wu, Suqing
    [J]. WATER, 2024, 16 (24)
  • [30] Nitrogen uptake and cycling in Phragmites australis in a lake-receiving nutrient-rich mine water: a 15N tracer study
    Chlot, Sara
    Widerlund, Anders
    Ohlander, Bjorn
    [J]. ENVIRONMENTAL EARTH SCIENCES, 2015, 74 (07) : 6027 - 6038