Simulations of the diurnal migration of Microcystis aeruginosa based on a scaling model for physical-biological interactions

2016 ◽  
Vol 337 ◽  
pp. 200-210 ◽  
Author(s):  
E. Aparicio Medrano ◽  
B.J.H. van de Wiel ◽  
R.E. Uittenbogaard ◽  
L.M. Dionisio Pires ◽  
H.J.H. Clercx
Keyword(s):  
Microcystis Aeruginosa ◽  
Biological Interactions ◽  
Scaling Model ◽  
Diurnal Migration

Influence of increased nutrient supply on Microcystis aeruginosa at cellular and proteomic levels

2020 ◽  
Vol 85 ◽  
pp. 47-58
Author(s):  
Y Jiang ◽  
Y Liu
Keyword(s):  
Microcystis Aeruginosa ◽  
Regulatory Protein ◽  
Acid Synthesis ◽  
Nutrient Supply ◽  
Nitrogen Supply ◽  
Nitrogen And Phosphorus ◽  
Comprehensive Description ◽  
Amino Acid Synthesis ◽  
High Nutrient ◽  
Proteomic Responses

Various studies have observed that increased nutrient supply promotes the growth of bloom-forming cyanobacteria, but only a limited number of studies have investigated the influence of increased nutrient supply on bloom-forming cyanobacteria at the proteomic level. We investigated the cellular and proteomic responses of Microcystis aeruginosa to elevated nitrogen and phosphorus supply. Increased supply of both nutrients significantly promoted the growth of M. aeruginosa and the synthesis of chlorophyll a, protein, and microcystins. The release of microcystins and the synthesis of polysaccharides negatively correlated with the growth of M. aeruginosa under high nutrient levels. Overexpressed proteins related to photosynthesis, and amino acid synthesis, were responsible for the stimulatory effects of increased nutrient supply in M. aeruginosa. Increased nitrogen supply directly promoted cyanobacterial growth by inducing the overexpression of the cell division regulatory protein FtsZ. NtcA, that regulates gene transcription related to both nitrogen assimilation and microcystin synthesis, was overexpressed under the high nitrogen condition, which consequently induced overexpression of 2 microcystin synthetases (McyC and McyF) and promoted microcystin synthesis. Elevated nitrogen supply induced the overexpression of proteins involved in gas vesicle organization (GvpC and GvpW), which may increase the buoyancy of M. aeruginosa. Increased phosphorus level indirectly affected growth and the synthesis of cellular substances in M. aeruginosa through the mediation of differentially expressed proteins related to carbon and phosphorus metabolism. This study provides a comprehensive description of changes in the proteome of M. aeruginosa in response to an increased supply of 2 key nutrients.

Inhibitory effects of Cyperus alternifolius on growth of Microcystis aeruginosa and identification of algicidal substances

2019 ◽  
Vol 46 (1) ◽  
pp. 73-84
Author(s):  
L. Zhou ◽  
S. Nakai ◽  
G. F. Chen ◽  
Q. Pan ◽  
N. X. Cui ◽  
...  
Keyword(s):  
Microcystis Aeruginosa ◽  
Inhibitory Effects ◽  
Cyperus Alternifolius

Asymmetric warming enhances Microcystis aeruginosa resistance to macrophytic anti-cyanobacterial coumarin

2018 ◽  
Vol 43 (2) ◽  
pp. 265-274 ◽  
Author(s):  
W.X. Hong ◽  
S.P. Zuo ◽  
L.T. Ye ◽  
B.Q. Qin
Keyword(s):  
Microcystis Aeruginosa

Planar Brush of End-Tethered Molecular Bottle-Brushes. Scaling Model

2018 ◽  
Vol 60 (2) ◽  
pp. 173-180
Author(s):  
E. B. Zhulina ◽  
I. M. Neelov ◽  
S. S. Sheiko ◽  
O.V. Borisov
Keyword(s):  
Scaling Model ◽  
Bottle Brushes

Biotics: Competition, Herbivory, Predation, Parasitism and Symbiosis

2017 ◽  
Author(s):  
Christer Brönmark ◽  
Lars-Anders Hansson
Keyword(s):  
Population Dynamics ◽  
Ecosystem Function ◽  
Theoretical Basis ◽  
Abiotic Factors ◽  
Biological Interactions ◽  
Natural Systems ◽  
The Many

If biological interactions, such as competition and predation, have any effect on population dynamics, or if abiotic factors alone determine which organisms, how many of them do we see in a specific ecosystem, was for long a controversial question. This chapter aims at providing the basis for the understanding of biological interactions, as well as showing ample examples of how important those interactions are in shaping both population dynamics and ecosystem function of natural systems. In addition to the many examples, the reader is introduced to the history and the theoretical basis for biological interactions.

An NLOS Mitigation Scheme for TDOA Localization Using the Multidimensional Scaling Model

2020 ◽  
Author(s):  
Wuyang Jiang ◽  
Baogang Ding ◽  
Xingjie Chen ◽  
Wenjing Gui ◽  
Xiaodong Chai
Keyword(s):  
Multidimensional Scaling ◽  
Scaling Model

scholarly journals Biological interactions of biocompatible and water-dispersed MoS2 nanosheets with bacteria and human cells

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Jasneet Kaur ◽  
Manjot Singh ◽  
Carmela Dell‘Aversana ◽  
Rosaria Benedetti ◽  
Paola Giardina ◽  
...  
Keyword(s):  
Human Cells ◽  
Biological Interactions ◽  
Mos2 Nanosheets
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