scholarly journals Chemically Stressed Bacterial Communities in Anaerobic Digesters Exhibit Resilience and Ecological Flexibility

2020 ◽  
Vol 11 ◽  
Author(s):  
Benjamin Schwan ◽  
Christian Abendroth ◽  
Adriel Latorre-Pérez ◽  
Manuel Porcar ◽  
Cristina Vilanova ◽  
...  
2012 ◽  
Vol 157 (4) ◽  
pp. 564-572 ◽  
Author(s):  
Kerstin E. Scherr ◽  
Tserennyam Lundaa ◽  
Viviana Klose ◽  
Günther Bochmann ◽  
Andreas P. Loibner

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Yun Zhang ◽  
Xin Ke ◽  
Wei Sun ◽  
Guangcai Zhang ◽  
Xiaodan Gao ◽  
...  

Oxytetracycline and copper are the common residues in animal manures. Meanwhile, anaerobic digestion is considered as a clean biotechnology for the disposal of animal manures. In this paper, the performance of anaerobic digesters and the dynamics of bacterial communities under the different treatments of oxytetracycline and copper were discussed. The parameters of methane production and pH values were studied to reflect the performance of anaerobic digester. Results showed that the changes of methane production and pH values were not obvious compared with the control. This means that the treatments of oxytetracycline and copper almost have no effects on the performance of anaerobic digesters. This phenomenon might be due to the chelation reaction between oxytetracycline and copper. This chelation reaction might reduce the toxicity of oxytetracycline. The study on the dynamics of bacterial communities was based on the polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) method. Results indicated that the bacterial communities had significant differences under the different treatments of oxytetracycline and copper. UnculturedBacteroidetesbacterium (CU922272.1) and unculturedBacteroidetesbacterium (AB780945.1) showed adaptability to the different treatments of oxytetracycline and copper and were the dominant bacterial communities.


Author(s):  
P. Pullammanappallil ◽  
S.A. Svoronos ◽  
G. Lyberatos ◽  
D.P. Chynoweth

2013 ◽  
Vol 40 (1) ◽  
pp. 43-48
Author(s):  
Nina Ciocârlan

Abstract This work refers to the native species of genus Astragalus L. (A. dasyanthus, A. ponticus), Adonis L. (A. vernalis, A. wolgensis) and Digitalis L. (D. lanata, D. grandiflora). The plants are cultivated in the Botanical Garden of Moldova in the field collection of the medicinal and aromatic plants. Investigation includes propagation aspects, research into cultivation techniques and conservation measures. The biological particularities and the phenologic rhythm are also registered. The obtained data shows the ecological flexibility of species and the possibility of preserving them in culture.


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