91 research outputs found
Diversity of Actinomycetes From Eka Karya Botanical Garden, Bali
A total of 229 strains of actinomycetes were isolated and identified by full sequence of 16S rRNA gene analysis. Samples consisted of 18 soil and 20 leaf-litter were collected from Eka Karya Botanical Garden, Bali Island, Indonesia. Two isolation methods, i.e. SDS-Yeast Extract (SY) and Rehydration-Centrifugation (RC) were used in this study. Based on 16S rRNA gene analysis, isolated actinomycetes may be grouped into 28 genera. Based on molecular analysis of 16S rRNA gene similarities showed that isolated actinomycetes of Eka Karya Botanical Garden origin is diverse. Analysis on 144 isolates from soil samples, resulted in 24 genera and more than 87 species. Streptomyces is the most dominant genus where 65 isolates or 45% from isolated actinomycetes belong to this genus. It was followed by Actinoplanes (25 isolates =17%). From leaf-littersamples, the total number of 85 isolates may be grouped into 9 genera and more than 41 species. The most dominated genus is Actinoplanes (42 isolates =49%) followed by Catenuloplanes (16 isolates=19%)
Brevianes Revisited
Breviones are a new family of secondary metabolites that were originally isolated from the New Zealand endemic fungus Penicillium brevicompactum var. Dierckx. These compounds are generally characterized by a new carbon skeleton, known as breviane, which that has three possible structural variations, such as breviane, abeo-breviane, and abeo-norbreviane. Brevianes present a basic diterpenic tricyclic core that is mevalonic in origin and is similar to that of perhydrophenanthrene. The core bears four methyl groups at positions C4, C8, C10, and C13 and has defined stereochemistry at positions C5, C8, C9, C10, and C14. The C1'-C7' side chain has been proposed to have a polyketide biosynthetic origin and is joined to the diterpenic moiety through carbons C2'-C15'. The cyclization and lactonization of this part of the molecule leads to the characteristic breviane spiranic ring fused to the α-pyrone
Simaomicin α: Effects on the Cell Cycle of Synchronized, Cultured Plasmodium falciparum
Selective and Potent In Vitro Antimalarial Activities Found in Four Microbial Metabolites
Jogyamycin, a new antiprotozoal aminocyclopentitol antibiotic, produced by Streptomyces sp. a-WM-JG-16.2
Effect of Calcium-Compound Addition on the Physical Properties and Tissue Structure of Seasoned 'Umeboshi': Investigation of Actual Conditions of Commercially Prepared Products and Verification of Products Prepared in a Laboratory.
In vitro and in vivo antimalarial activity of puberulic acid and its new analogs, viticolins A–C, produced by Penicillium sp. FKI-4410
The Effects of Fruit Maturation and Sodium Chloride Concentration on the Compositions of Pickled Sun-Dried Ume Fruit, 'Umeboshi'.
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