RETRACTED: Marine actinobacterial metabolites: Current status and future perspectives

Abstract

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of the Editor. Authors and Editor agreed to retract this article because substantial parts of the text were copied from the following sources without proper attribution: Lam, K.S. (2006), Discovery of novel metabolites from marine actinomycetes. Current Opinion in Microbiology 9(3), pp. 245–251; Subramani, R., Aalbersberg, W. (2012), Marine actinomycetes: An ongoing source of novel bioactive metabolites. Microbiological Research 167(10), pp. 571–580; Dharmaraj, S. (2010), Marine Streptomyces as a novel source of bioactive substances. World Journal of Microbiology and Biotechnology 26(12), pp. 2123–2139. The authors apologize for this oversight and any inconvenience caused.

Production and Characterization of Melanin from Streptomyces Cavourensis Strain RD8 Using Response Surface Optimization

“…The findings from the present study were supported by Manivasagan et al (2013) under optimized conditions. …”

Actinobacteria and Myxobacteria—Two of the Most Important Bacterial Resources for Novel Antibiotics

“…While we concentrate in this review on the bioactive secondary metabolites like antibiotics, cytotoxic agents and fungicides, other biotechnological applications of marine Actinobacteria are the production of melanins, enzymes, enzyme inhibitors, single cell proteins as well as probiotics in aquaculture (Manivasagan et al 2013). …”

“…However, it becomes apparent that most of the producer strains were classified as Streptomyces species, which are common terrestrial bacteria. To date, "real new structures" were only isolated from the two genera of genuine marine Actinobacteria Salinispora and Marinospora (Manivasagan et al 2013). Salinosporamides A and B (Fig.…”

“…As NPI-0052, salinosporamide A entered as the first compound isolated out of an obligate marine organism, the clinical studies in multiple phase I trials for solid tumors, lymphoma and multiple myeloma (http://www.nereuspharm.com/NPI-0052.shtml). The second compound, salinisporamide B, differs only in a lack of chorine and the subsequently less activity by a factor of 500 (Manivasagan et al 2013). However, the terrestrial Streptomyces strain JS360 is the producer strain of the cinnabaramides A-G which are structurally close related to salinosporamide A (Stadler et al 2007).…”

Isolation, characterization and evaluation of antioxidant activities of secondary metabolites producing actinomycetes of terrestrial origin

“…Secondary metabolites produced by the marine actinobacteria possess a wide range of biological activities. 2,[5][6][7][8] TLC is generally regarded as a simple, rapid, and inexpensive method for the separation, tentative identification, and visual semi quantitative assessment of a wide variety of substances. Thin layer chromatography is used to separate components in a mixture and to identify unknown materials by comparing their separation pattern to that of known reference materials.…”