Effects of climate variability on interactions between cyanobacteria and associated microheterotrophs-consequences for development of toxic cyanobacterial blooms

气候变化对蓝藻和相关微型异养生物之间相互作用的影响——对有毒蓝藻水华发展的影响

基本信息

项目摘要

Recent studies on seasonal dynamics of phytoplankton in fresh and brackish lakes, in particularly on acyclic cyanobacterial blooms in lakes of Northern Germany, suggest multiple interactions rather than individual mechanisms being responsible for the development of cyanobacterial blooms. Variability of temperature is one key factor leading to marked changes in interactions between cyanobacteria and heterotrophic bacteria in terms of symbiosis, parasitism, commensalisms etc. These changes affect the seasonal dominance pattern and may also lead to a decoupling of previously synchronised food webs. By using pure cultures of common and potentially toxic cyanobacteria (Nodularia spumigena, Anabaena spp., Microcystis aentginosa (flos-aquae) incubated with natural and defined communities of heterotrophic bacteria the proposed project aims to experimentally test the following hypotheses: a) Rising temperatures cause severe changes in interactions between cyanobacteria and heterotrophic bacteria, b) Due to a tight coupling between cyanobacteria and heterotrophic bacteria changes in the community composition of heterotrophic bacteria will impact the development of cyanobacteria and may cause decoupling of presently synchronised food webs (mismatch). Underlying mechanisms concerning the role of specific heterotrophic bacterial communities will be investigated using molecular (phylogeny) as well as classical microbiological (physiology) methods.
最近对新鲜和微咸湖泊浮游植物季节性动态的研究,特别是对德国北部湖泊无环蓝藻华的研究表明,多种相互作用而不是单个机制是导致蓝藻华发展的原因。温度的变化是导致蓝藻与异养菌在共生、寄生、共生等方面相互作用发生显著变化的关键因素之一。这些变化影响了季节性优势模式,也可能导致先前同步的食物网脱钩。通过使用普通和潜在有毒的蓝藻(spumigena Nodularia, Anabaena spp., aentinosa Microcystis (flos-aquae))的纯培养物与自然和确定的异养细菌群落孵育,拟议的项目旨在实验验证以下假设:a)温度升高导致蓝藻和异养细菌之间的相互作用发生严重变化,b)由于蓝藻和异养细菌之间的紧密耦合,异养细菌群落组成的变化将影响蓝藻的发育,并可能导致目前同步的食物网脱钩(不匹配)。关于特定异养细菌群落作用的潜在机制将使用分子(系统发育)以及经典的微生物(生理学)方法进行研究。

项目成果

期刊论文数量(11)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Microbial activities accompanying decomposition of cladoceran and copepod carcasses under different environmental conditions
不同环境条件下枝角类和桡足类尸体分解伴随的微生物活动
  • DOI:
    10.3354/ame01331
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    1.4
  • 作者:
    Kam W. Tang;Samantha L. Bickel. Claudia Dziallas;Hans-Peter Grossart
  • 通讯作者:
    Hans-Peter Grossart
Bacteria dispersal by hitchhiking on zooplankton
Effects of food on bacterial community composition associated with the copepod Acartia tonsa Dana
食物对桡足类 Acaria tonsa Dana 相关细菌群落组成的影响
  • DOI:
    10.1098/rsbl.2009.0076
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    3.3
  • 作者:
    Kam Tang;Claudia Dziallas;Kristine Hutalle-Schmelzer;Hans-Peter Grossart
  • 通讯作者:
    Hans-Peter Grossart
UV irradiation of natural organic matter (NOM): impact on organic carbon and bacteria
  • DOI:
    10.1007/s00027-011-0239-y
  • 发表时间:
    2012-07-01
  • 期刊:
  • 影响因子:
    2.4
  • 作者:
    Paul, Andrea;Dziallas, Claudia;Grossart, Hans-Peter
  • 通讯作者:
    Grossart, Hans-Peter
Zooplankton and aggregates as refuge for aquatic bacteria: protection from UV, heat and ozone stresses used for water treatment.
  • DOI:
    10.1111/j.1462-2920.2010.02335.x
  • 发表时间:
    2011-02
  • 期刊:
  • 影响因子:
    5.1
  • 作者:
    K. Tang;Claudia Dziallas;H. Grossart
  • 通讯作者:
    K. Tang;Claudia Dziallas;H. Grossart
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Professor Dr. Hans-Peter Grossart其他文献

Professor Dr. Hans-Peter Grossart的其他文献

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{{ truncateString('Professor Dr. Hans-Peter Grossart', 18)}}的其他基金

Ecological role of fungal parasites on benthic diatoms of polar coastal waters
极地沿海水域底栖硅藻真菌寄生虫的生态作用
  • 批准号:
    424170377
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Alternative states of a simple predator-prey system induced by competition between small edible and large inedible algae and fungal parasitism (APPS)
由小型可食用藻类和大型不可食用藻类之间的竞争以及真菌寄生引起的简单捕食者-猎物系统的替代状态(APPS)
  • 批准号:
    394716440
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Mortality of zooplankton in lake ecosystems and its contribution to vertical carbon fluxes (ZooFlux)
湖泊生态系统中浮游动物的死亡率及其对垂直碳通量的贡献(ZooFlux)
  • 批准号:
    319532628
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Comparing phenotypic plasticity in bacterial prey traits and ecological consequences by using specialist vs. generalist strains and organic aggregates as model systems
通过使用专业菌株和通才菌株和有机聚集体作为模型系统,比较细菌猎物特征的表型可塑性和生态后果
  • 批准号:
    257346203
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Evaluation and quantification of microbial degradation of allochthonous organic matter by "priming" (MicroPrime)
通过“引发”对异地有机物的微生物降解进行评估和定量(MicroPrime)
  • 批准号:
    256575941
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Revising the methane cycling in lakes: sources and sinks in two German lakes with specific consideration of methane accumulation in oxic waters
修改湖泊中的甲烷循环:德国两个湖泊的源和汇,特别考虑含氧水域中的甲烷积累
  • 批准号:
    241479293
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Bacteria-zooplankton interactions: a key to understanding bacterial dynamics and biogeochemical processes in lakes?
细菌-浮游动物相互作用:了解湖泊细菌动力学和生物地球化学过程的关键?
  • 批准号:
    201319348
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Functional role and ecotype divergence in freshwater ultramicrobacteria
淡水超微生物的功能作用和生态型差异
  • 批准号:
    163678447
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Auswirkung interner Wellen auf mikrobielle Habitate kund Aktivitäten sowie den Stoffaustausch an der Wasser-Sediment-Grenzschicht des Stechlinsees
内波对施特奇林湖水-沉积物界面微生物栖息地、活动及物质交换的影响
  • 批准号:
    75711677
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Veränderungen in der Struktur und Funktion pelagischer Bakterien während und nach der Restauration des Tiefwarensees
蒂夫瓦伦湖恢复期间和恢复后中上层细菌结构和功能的变化
  • 批准号:
    39400205
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Research Grants

相似国自然基金

发展/减排路径(SSPs/RCPs)下中国未来人口迁移与集聚时空演变及其影响
  • 批准号:
    19ZR1415200
  • 批准年份:
    2019
  • 资助金额:
    0.0 万元
  • 项目类别:
    省市级项目
红树林生态系统对气候异常变化的响应与适应
  • 批准号:
    41176101
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    75.0 万元
  • 项目类别:
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Predicting effects of interannual variability in climate and drought on plant community outcomes, resilience, and soil carbon using temporally replicated grassland reconstructions
使用临时复制的草地重建来预测气候和干旱的年际变化对植物群落结果、恢复力和土壤碳的影响
  • 批准号:
    2343738
  • 财政年份:
    2024
  • 资助金额:
    --
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    Continuing Grant
Effects of Walking in Greenspace and the Built Environment in Adults with Prediabetes: A Randomized Crossover Trial
糖尿病前期成人在绿地和建筑环境中行走的影响:随机交叉试验
  • 批准号:
    10749410
  • 财政年份:
    2023
  • 资助金额:
    --
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Understanding How Latent Heat Release and Cloud Radiative Effects Shape Jet Variability and Jet Shifts Under Climate Change
了解潜热释放和云辐射效应如何影响气候变化下的射流变率和射流变化
  • 批准号:
    2202991
  • 财政年份:
    2022
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Identifying low dose measurement error corrected effects of multiple pollutants using causal modeling
使用因果模型识别多种污染物的低剂量测量误差校正效应
  • 批准号:
    10524732
  • 财政年份:
    2021
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    --
  • 项目类别:
Decadal climate variability: Mechanisms, interactions and effects
年代际气候变率:机制、相互作用和影响
  • 批准号:
    DE170100367
  • 财政年份:
    2017
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    --
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    Discovery Early Career Researcher Award
LTREB Renewal: Multiscale effects of climate variability and change on hydrologic regimes, ecosystem function, and community structure in a desert stream and its catchment
LTREB 更新:气候变率和变化对沙漠溪流及其流域的水文状况、生态系统功能和群落结构的多尺度影响
  • 批准号:
    1457227
  • 财政年份:
    2015
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    --
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Cookstove air pollution: Emission profiles and subclinical effects of exposure
炉灶空气污染:排放概况和暴露的亚临床影响
  • 批准号:
    9278173
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    2014
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    --
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Cookstove air pollution: Emission profiles and subclinical effects of exposure
炉灶空气污染:排放概况和暴露的亚临床影响
  • 批准号:
    8765018
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    2014
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    --
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AGS-PRF: A Hierarchical Modeling Approach to Quantifying the Effects of Changes in Ozone and Solar Variability on the Brewer-Dobson Circulation and Tropospheric Climate
AGS-PRF:量化臭氧和太阳变率变化对布鲁尔-多布森环流和对流层气候影响的分层建模方法
  • 批准号:
    1331341
  • 财政年份:
    2014
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    --
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    Fellowship Award
Cookstove air pollution: Emission profiles and subclinical effects of exposure
炉灶空气污染:排放概况和暴露的亚临床影响
  • 批准号:
    9067414
  • 财政年份:
    2014
  • 资助金额:
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