نتایج جستجو برای: actinobacteria

تعداد نتایج: 4482  

2014
Abdelaziz MESSIS Azzeddine BETTACHE Said BENALLAOUA Mouloud KECHA

This review summarizes about the actinobacteria and their capability to produce bioactive secondary metabolites. Actinobacteria are of special biotechnological interest since they are known to produce chemically diverse compounds with a wide range of biological activity. This distinct clade of Gram-positve bacteria include some of the key antibiotic producers and are also sources of several bio...

2017
Bao-Zhu Fang Nimaichand Salam Ming-Xian Han Jian-Yu Jiao Juan Cheng Da-Qiao Wei Min Xiao Wen-Jun Li

The phylum Actinobacteria is one of the most ubiquitously present bacterial lineages on Earth. In the present study, we try to explore the diversity of cultivable rare Actinobacteria in Sigangli Cave, Yunnan, China by utilizing a combination of different sample pretreatments and under different culture conditions. Pretreating the samples under different conditions of heat, setting the isolation...

2010
Jenny Schäfer Udo Jäckel Peter Kämpfer

The occurrence of Actinobacteria in water-damaged building materials as well as the clinical relevance of some Actinobacteria (e.g. Saccharopolyspora spp., Mycobacterium spp., Nocardia spp., etc.), led us to develop a detection system to examine the actinobacterial community. A new primer system, Com2xf/Ac1186r (16S rRNA gene based) specific for Actinobacteria was designed. The adequacy for the...

2015
Fatemeh Mohammadipanah Joachim Wink

The lack of new antibiotics in the pharmaceutical pipeline guides more and more researchers to leave the classical isolation procedures and to look in special niches and ecosystems. Bioprospecting of extremophilic Actinobacteria through mining untapped strains and avoiding resiolation of known biomolecules is among the most promising strategies for this purpose. With this approach, members of a...

2012
Michal Letek María Fiuza Almudena F. Villadangos Luís M. Mateos José A. Gil

Although bacteria are considered the simplest life forms, we are now slowly unraveling their cellular complexity. Surprisingly, not only do bacterial cells have a cytoskeleton but also the building blocks are not very different from the cytoskeleton that our own cells use to grow and divide. Nonetheless, despite important advances in our understanding of the basic physiology of certain bacteria...

Journal: :Biochimica et biophysica acta 2008
Chris D den Hengst Mark J Buttner

As most actinobacteria are obligate aerobes, they have to cope with endogenously generated reactive oxygen species, and actinobacterial pathogens have to resist oxidative attack by phagocytes. Actinobacteria also have to survive long periods under low oxygen tension; for example, Mycobacterium tuberculosis can persist in the host for years under apparently hypoxic conditions in a latent, non-re...

2015
L. Shivlata Tulasi Satyanarayana

Microbes belonging to the phylum Actinobacteria are prolific sources of antibiotics, clinically useful bioactive compounds and industrially important enzymes. The focus of the current review is on the diversity and potential applications of thermophilic and alkaliphilic actinobacteria, which are highly diverse in their taxonomy and morphology with a variety of adaptations for surviving and thri...

Journal: :Environmental microbiology 2003
James E M Stach Luis A Maldonado Alan C Ward Michael Goodfellow Alan T Bull

In this study, we redesigned and evaluated primers for the class Actinobacteria. In silico testing showed that the primers had a perfect match with 82% of genera in the class Actinobacteria, representing a 26-213% improvement over previously reported primers. Only 4% of genera that displayed mismatches did so in the terminal three bases of the 3' end, which is most critical for polymerase chain...

Journal: :Frontiers in microbiology 2016
Huda M. Mahmoud Aisha A. Kalendar

Marine Actinobacteria, particularly coral-associated Actinobacteria, have attracted attention recently. In this study, the abundance and diversity of Actinobacteria associated with three types of coral thriving in a thermally stressed coral reef system north of the Arabian Gulf were investigated. Coscinaraea columna, Platygyra daedalea and Porites harrisoni have been found to harbor equivalent ...

Journal: :Journal of Applied Biotechnology & Bioengineering 2019

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