Mechanisms of acid tolerance in bacteria and prospects in biotechnology and bioremediation

Acidogenic and aciduric bacteria have developed several survival systems in various acidic environments to prevent cell damage due to acid stress such as that on the human gastric surface and in the fermentation medium used for industrial production of acidic products. Common mechanisms for acid res...

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Vydáno v:	Biotechnology advances Ročník 33; číslo 7; s. 1484 - 1492
Hlavní autoři:	Liu, Yuping, Tang, Hongzhi, Lin, Zhanglin, Xu, Ping
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	England Elsevier Inc 15.11.2015
Témata:	Acid resistance acid tolerance Acids ammonia Bacteria Bacteria - enzymology Bacteria - metabolism Bacterial Physiological Phenomena Bacterial Proteins Biodegradation, Environmental biofilm biofuels Biology bioremediation Biotechnology Clouds Density F1–F0–ATPase fermentation Formations Glutamate Decarboxylase humans Macromolecule Macromolecules proteins Proton-Translocating ATPases Survival Synthetic Biology urease F1–F0–ATPase Glutamate decarboxylase Synthetic biology Macromolecule Acid resistance F–F–ATPase
ISSN:	0734-9750, 1873-1899
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Popis
Shrnutí:	Acidogenic and aciduric bacteria have developed several survival systems in various acidic environments to prevent cell damage due to acid stress such as that on the human gastric surface and in the fermentation medium used for industrial production of acidic products. Common mechanisms for acid resistance in bacteria are proton pumping by F1–F0–ATPase, the glutamate decarboxylase system, formation of a protective cloud of ammonia, high cytoplasmic urease activity, repair or protection of macromolecules, and biofilm formation. The field of synthetic biology has rapidly advanced and generated an ever-increasing assortment of genetic devices and biological modules for applications in biofuel and novel biomaterial productions. Better understanding of aspects such as overproduction of general shock proteins, molecular mechanisms, and responses to cell density adopted by microorganisms for survival in low pH conditions will prove useful in synthetic biology for potential industrial and environmental applications.
Bibliografie:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0734-9750 1873-1899
DOI:	10.1016/j.biotechadv.2015.06.001