Functional stability of stream-dwelling microbial decomposers exposed to copper and zinc stress

被引:35
|
作者
Duarte, Sofia [1 ]
Pascoal, Claudia [1 ]
Cassio, Fernanda [1 ]
机构
[1] Univ Minho, Dept Biol, Ctr Mol & Environm Biol CBMA, P-4710057 Braga, Portugal
关键词
ecosystem stability; metal stress; microbial decomposers; streams; FUNGI FONTANOSPORA-FUSIRAMOSA; AQUATIC HYPHOMYCETE DIVERSITY; LEAF DECOMPOSITION; FLAGELLOSPORA-CURTA; CURRENT KNOWLEDGE; BIODIVERSITY; COMMUNITIES; CHALLENGES; TOLERANCE; RESPONSES;
D O I
10.1111/j.1365-2427.2009.02217.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
1. We investigated the resistance of aquatic microbial decomposers to Cu and Zn stress and their ability to recover after release from metal exposure, by examining leaf mass loss, fungal reproduction and microbial biomass and diversity. 2. Alder leaves, colonised in a reference stream, were exposed in microcosms to copper (Cu) or zinc (Zn), alone or in mixtures, with metals added together or sequentially (at day 0 or after 10 days). After 20 days, half of the microcosms were released from metals. 3. Leaf mass loss and fungal reproduction were reduced in most metal treatments, and the structure of fungal and bacterial communities was altered as indicated by identification of conidia and DNA fingerprinting based on denaturing gradient gel electrophoresis. Metals reduced the biomass of bacteria, but not that of fungi. 4. After release from metal stress, the structure of fungal communities became similar to that of control, and a recovery of microbial activity seemed to occur as shown by the lack of differences in leaf mass loss, bacterial biomass and fungal reproduction between control and metal treatments.
引用
收藏
页码:1683 / 1691
页数:9
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    Weiperth, Andras
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    [J]. SCIENTIFIC REPORTS, 2023, 13 (01)
  • [2] Road crossings change functional diversity and trait composition of stream-dwelling macroinvertebrate assemblages
    Blanka Gál
    András Weiperth
    János Farkas
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    [J]. Scientific Reports, 13
  • [3] Functional morphology of prey capture in stream-dwelling sailfin silversides (Telmatherinidae) based on high-speed video recordings
    Benjamin D. Wasiljew
    Jobst Pfaender
    Benjamin Wipfler
    Letha Louisiana Wantania
    Fabian Herder
    [J]. Zoomorphology, 2022, 141 : 347 - 359
  • [4] Functional morphology of prey capture in stream-dwelling sailfin silversides (Telmatherinidae) based on high-speed video recordings
    Wasiljew, Benjamin D.
    Pfaender, Jobst
    Wipfler, Benjamin
    Wantania, Letha Louisiana
    Herder, Fabian
    [J]. ZOOMORPHOLOGY, 2022, 141 (3-4) : 347 - 359
  • [5] Evaluating fluctuating asymmetry in a stream-dwelling insect as an indicator of low-level thermal stress: a large-scale field experiment
    Hogg, ID
    Eadie, JM
    Williams, DD
    Turner, D
    [J]. JOURNAL OF APPLIED ECOLOGY, 2001, 38 (06) : 1326 - 1339
  • [6] Stability of the total and functional microbial communities in river sediment mesocosms exposed to anthropogenic disturbances
    van der Zaan, Bas
    Smidt, Hauke
    de Vos, Willem M.
    Rijnaarts, Huub
    Gerritse, Jan
    [J]. FEMS MICROBIOLOGY ECOLOGY, 2010, 74 (01) : 72 - 82
  • [7] Evaluation of red blood cell superoxide dismutase, catalase, zinc and copper, and plasma zinc and copper levels in mice exposed to dark induced stress
    Teksen, Fulya
    Bilgili, Ali
    Kocaturk, Pelin Aribal
    Altintas, Levent
    [J]. BULLETIN OF THE VETERINARY INSTITUTE IN PULAWY, 2007, 51 (01) : 173 - 176
  • [8] Functional stability of microbial communities in contaminated soils near a zinc smelter (Budel, The Netherlands)
    Tobor-Kaplon, MA
    Bloem, J
    Römkens, PFAM
    De Ruiter, PC
    [J]. ECOTOXICOLOGY, 2006, 15 (02) : 187 - 197
  • [9] Functional Stability of Microbial Communities in Contaminated Soils Near a Zinc Smelter (Budel, The Netherlands)
    Maria A. Tobor-Kapłon
    J. Bloem
    P.F.A.M. Römkens
    P.C. de Ruiter
    [J]. Ecotoxicology, 2006, 15 : 187 - 197
  • [10] Copper–zinc imbalance induces kidney tubule damage and oxidative stress in a population exposed to chronic environmental cadmium
    Sang-Yong Eom
    Dong-Hyuk Yim
    Mingai Huang
    Choong-Hee Park
    Guen-Bae Kim
    Seung-Do Yu
    Byung-Sun Choi
    Jung-Duck Park
    Yong-Dae Kim
    Heon Kim
    [J]. International Archives of Occupational and Environmental Health, 2020, 93 : 337 - 344