scholarly journals New Steady-State Microbial Community Compositions and Process Performances in Biogas Reactors Induced by Temperature Disturbances

2015 ◽  
pp. 109-130
Keyword(s):  
Steady State ◽  
Microbial Community ◽  
Biogas Reactors

scholarly journals New steady-state microbial community compositions and process performances in biogas reactors induced by temperature disturbances

2015 ◽  
Vol 8 (1) ◽  
pp. 3 ◽  
Author(s):  
Gang Luo ◽  
Davide De Francisci ◽  
Panagiotis G Kougias ◽  
Treu Laura ◽  
Xinyu Zhu ◽  
...  
Keyword(s):  
Steady State ◽  
Microbial Community ◽  
Biogas Reactors

scholarly journals New Steady-State Microbial Community Compositions and Process Performances in Biogas Reactors Induced by Temperature Disturbances

2015 ◽  
pp. 83-103 ◽  
Author(s):  
Gang Luo ◽  
Davide de Francisci ◽  
Panagiotis Kougias ◽  
Treu Laura ◽  
Xinyu Zhu ◽  
...  
Keyword(s):  
Steady State ◽  
Microbial Community ◽  
Biogas Reactors

Microbial community shifts in biogas reactors upon complete or partial ammonia inhibition

2018 ◽  
Vol 103 (1) ◽  
pp. 519-533 ◽  
Author(s):  
Zuopeng Lv ◽  
Athaydes Francisco Leite ◽  
Hauke Harms ◽  
Karin Glaser ◽  
Jan Liebetrau ◽  
...  
Keyword(s):  
Microbial Community ◽  
Ammonia Inhibition ◽  
Biogas Reactors ◽  
Community Shifts

scholarly journals Disentangling strictly self-serving mutations from win-win mutations in a mutualistic microbial community

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Samuel Frederick Mock Hart ◽  
Jose Mario Bello Pineda ◽  
Chi-Chun Chen ◽  
Robin Green ◽  
Wenying Shou
Keyword(s):  
Growth Rate ◽  
Steady State ◽  
Microbial Community ◽  
Release Rate ◽  
Supply Rate ◽  
Chromosome Duplication ◽  
Yeast Strains ◽  
Engineered Yeast ◽  
State Growth

Mutualisms can be promoted by pleiotropic win-win mutations which directly benefit self (self-serving) and partner (partner-serving). Intuitively, partner-serving phenotype could be quantified as an individual’s benefit supply rate to partners. Here, we demonstrate the inadequacy of this thinking, and propose an alternative. Specifically, we evolved well-mixed mutualistic communities where two engineered yeast strains exchanged essential metabolites lysine and hypoxanthine. Among cells that consumed lysine and released hypoxanthine, a chromosome duplication mutation seemed win-win: it improved cell’s affinity for lysine (self-serving), and increased hypoxanthine release rate per cell (partner-serving). However, increased release rate was due to increased cell size accompanied by increased lysine utilization per birth. Consequently, total hypoxanthine release rate per lysine utilization (defined as ‘exchange ratio’) remained unchanged. Indeed, this mutation did not increase the steady state growth rate of partner, and is thus solely self-serving during long-term growth. By extension, reduced benefit production rate by an individual may not imply cheating.

scholarly journals Anaerobic digester bioaugmentation influences quasi steady state performance and microbial community

2016 ◽  
Vol 104 ◽  
pp. 128-136 ◽  
Author(s):  
K. Venkiteshwaran ◽  
K. Milferstedt ◽  
J. Hamelin ◽  
D.H. Zitomer
Keyword(s):  
Steady State ◽  
Microbial Community ◽  
Anaerobic Digester ◽  
Quasi Steady State ◽  
Steady State Performance
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