Abstract:
:The bacterial cell cycle is simpler and different than that of the typical eukaryotic cell cycle. The selective pressure during evolution has been directed to achieve optimal growth of the individual free-living microbial cell instead of a variety of replication rates of the differentiated cell within an entire multicellular organism. This means that for most bacterial cells division depends more critically on their success in acquiring and using resources than is the case for most eukaryotic cells. The further implication is that bacterial cells somehow measure their own success in growth and from this 'decide' when they should attempt cell cycle events such as cell division and chromosome replication. On the assumption that bacterial division is responsive, directly or indirectly, to cell size, the cell cycle is analyzed here through Monte Carlo simulations. The results are used to consider the possibility of generating bacterial cultures growing synchronous. Because the precision of the size-at-division is surprisingly good, it appears that some organisms, at least, have a sensory mechanism that responds to their success in cell growth. It is known that the division size of some strains, however, is more precisely regulated than in others. Also, some strains are more precise in dividing the mother's cell cytoplasm to give the same sized daughters. Because some strains are much more precise than others, the possibility is raised that useful synchrony could be obtained with selected strains that are precise in these two aspects. These cultures would useful in studying other aspect of the physiology of cell growth.
journal_name
Crit Rev Microbioljournal_title
Critical reviews in microbiologyauthors
Koch ALdoi
10.1080/20014091096756keywords:
subject
Has Abstractpub_date
2001-01-01 00:00:00pages
223-37issue
3eissn
1040-841Xissn
1549-7828journal_volume
27pub_type
杂志文章,评审abstract::The cyanobacteria (blue-green algae) are photosynthetic prokaryotes having applications in human health with numerous biological activities and as a dietary supplement. It is used as a food supplement because of its richness in nutrients and digestibility. Many cyanobacteria (Microcystis sp, Anabaena sp, Nostoc sp, Os...
journal_title:Critical reviews in microbiology
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doi:10.3109/1040841X.2014.957640
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abstract::Pathogens in soil play a tremendous role in soil health and subsequent food production. Soil-borne pathogens can cause serious losses to global harvest and are considered as a difficult problem to manage worldwide. The emergence of soil disease is largely dependent on the pathogen-host-environment complex, which can b...
journal_title:Critical reviews in microbiology
pub_type: 杂志文章,评审
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abstract::Bacterial populations that are exposed to rapidly changing and sometimes hostile environments constantly switch between growth, survival, and death. Understanding bacterial survival and death are therefore cornerstones in a full comprehension of microbial life. During the last few years, new insights have emerged rega...
journal_title:Critical reviews in microbiology
pub_type: 杂志文章,评审
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abstract::Polymyxins are important lipopeptide antibiotics that serve as the last-line defense against multidrug-resistant (MDR) Gram-negative bacterial infections. Worryingly, the clinical utility of polymyxins is currently facing a serious threat with the global dissemination of mcr, plasmid-mediated polymyxin resistance. The...
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journal_title:Critical reviews in microbiology
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abstract::Pneumococcal surface adhesin A (PsaA) is a surface-exposed common 37-kilodalton multi-functional lipoprotein detected on all known serotypes of Streptococcus pneumoniae. This lipoprotein belongs to the ABC-type transport protein complex that transports Mn2+; it is also an adhesin that plays a major role in pneumococca...
journal_title:Critical reviews in microbiology
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journal_title:Critical reviews in microbiology
pub_type: 杂志文章,评审
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journal_title:Critical reviews in microbiology
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abstract::Escherichia coli enterotoxigenic strains produce one or more toxins which action result in production of diarrhea in animals including Man. One of these toxins, STb, has been mainly associated with colibacillosis in swine. Although highly prevalent in pigs with diarrhea, a relation between STb and disease was arduous ...
journal_title:Critical reviews in microbiology
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abstract::The agriculture industry is in need of novel biopesticides and development of large-scale production of mycopesticide, either fungal cells themselves or cell-free fungal components. The identification of a fungal strain with pesticide activity, and its improvement, is the primary step in developing infective propagule...
journal_title:Critical reviews in microbiology
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journal_title:Critical reviews in microbiology
pub_type: 杂志文章
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更新日期:2020-12-28 00:00:00
abstract::Due to the rise of multidrug-resistant infections in humans, phage therapy is gaining renewed attention in Western medicine. Despite the increasing number of publications focussed on the isolation, characterization and in vitro performance of different phages, there is still a lack of concise pre-clinical information ...
journal_title:Critical reviews in microbiology
pub_type: 杂志文章,评审
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journal_title:Critical reviews in microbiology
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abstract::Legionella spp. are the causative agent of Legionnaire's disease and an opportunistic pathogen of significant public health concern. Identification and quantification from environmental sources is crucial for identifying outbreak origins and providing sufficient information for risk assessment and disease prevention. ...
journal_title:Critical reviews in microbiology
pub_type: 杂志文章,meta分析,评审
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更新日期:2016-01-01 00:00:00
abstract::The use of marine microorganisms as potential biofactories for green synthesis of metallic nanoparticles is a relatively new field of research with considerable prospects. This method is eco-friendly, time saving, and inexpensive and can be easily scaled up for large-scale synthesis. The increasing need to develop sim...
journal_title:Critical reviews in microbiology
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abstract::Dermatophytoses are superficial infections caused by a group of fungi, the dermatophytes, which invade keratinized tissue of skin, hair, and nails in humans and animals. The importance of normal immune function in resistance to dermatophytoses is substantiated by an increased susceptibility to chronic infection seen i...
journal_title:Critical reviews in microbiology
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abstract::Renewed interest in the acetone-butanol-ethanol (ABE) fermentation as a route for industrial production of butanol has been evident since the oil crisis of the 1970s. The present review includes an historical recap of the traditional industrial process and culturing practices useful in maintaining viable solvent-produ...
journal_title:Critical reviews in microbiology
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journal_title:Critical reviews in microbiology
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abstract::The numbers and diversity of microbes in ecosystems within and around us is unmatched, yet most of these microorganisms remain recalcitrant to in vitro cultivation. Various high-throughput molecular techniques, collectively termed multi-omics, provide insights into the genomic structure and metabolic potential as well...
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abstract::T-cells play an important role in immunity but when these cells are overexposed to specific antigens, their function may decline. This state is usually referred to as exhaustion and the T-cells show reduced proliferation and functions such as cytokine release. T-cell exhaustion has been observed in several cancers as ...
journal_title:Critical reviews in microbiology
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abstract::Humans ingest large numbers of microbes daily. Food provides distinctly different physical and physiological conditions from drinking water. With high concentrations of carbohydrate, protein, and ionic strength, food is much closer to the human physiological state than drinking water, which is essentially devoid of nu...
journal_title:Critical reviews in microbiology
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abstract::The immune system is well-equipped with sensors that detect invading pathogens and dictate subsequent immune responses for clearing the infections. One such class of sensor is the toll-like receptor (TLR), that can sense diverse molecules of pathogen origin such as proteins, lipids, carbohydrate, DNA, RNA, and trigger...
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abstract::The exact aetiology of most autoimmune diseases remains unknown, nonetheless, several factors contributing to the induction or exacerbation of autoimmune reactions have been suggested. These include the genetic profile and lifestyle of the affected individual in addition to environmental triggers such as bacterial, pa...
journal_title:Critical reviews in microbiology
pub_type: 杂志文章,评审
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abstract::In mycobacteria, iron dependent transcription regulator (IdeR) regulates transcription of genes in response to iron levels. The IdeR regulated genes have been investigated mostly in M. tuberculosis, M. smegmatis, and in few of the other related species. Recent advances in crystal structure solution and computational a...
journal_title:Critical reviews in microbiology
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journal_title:Critical reviews in microbiology
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更新日期:2002-01-01 00:00:00
abstract::Although bacteria have historically been considered to play a major role in cystic fibrosis (CF) airway damage, a strong impact of respiratory viral infections (RVI) is also now recognized. Emerging evidence confirms that respiratory viruses are associated with deterioration of pulmonary function and exacerbation and ...
journal_title:Critical reviews in microbiology
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更新日期:2017-11-01 00:00:00
abstract::Programmed cell death (PCD), also referred to as apoptosis, is a cellular "suicide" mechanism, based on information from its own internal metabolism, environment, developmental history, and genome. This system was described in eukaryotes continuously along evolution, through amoebae, nematodes, insects, and animals. P...
journal_title:Critical reviews in microbiology
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abstract::Brucellosis is a worldwide zoonosis causing reproductive failures in livestock and a severe multi-organ disease in humans. The genus Brucella is divided into seven species and various biotypes differing in pathogenicity and host specificity. Although Brucella spp. represent a highly homogenous group of bacteria, RFLPs...
journal_title:Critical reviews in microbiology
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更新日期:2005-01-01 00:00:00
abstract::Giardia lamblia is the causative agent of the diarrheal disease giardiasis, against which only a limited number of drugs are currently available. Increasing reports of resistance to these drugs makes it necessary to identify new cellular targets for designing the next generation of anti-giardial drugs. Towards this go...
journal_title:Critical reviews in microbiology
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