This study was designed to assess the influence of three soil DNA extraction procedures, namely the International Organization for Standardization (ISO-11063, GnS-GII and modified ISO procedure (ISOm), on the taxonomic diversity and composition of soil bacterial and fungal communities. The efficacy of each soil DNA extraction method was assessed on five soils, differing in their physico-chemica...

During an antibiotic screening programme, a new biologically active complex was isolated from an unidentified Streptomyces, strain Ac6 5691}, which was obtained from a garden soil in Calcutta, India. This antibiotic complex was found to contain two water-soluble active fractions of which the major one was designated as boseimycin. This commuication describes the isolation, purification and char...

In the screening for new melanin synthesis inhibitors, we found a novel isonitrile inhibitor, MR304Afrom the culture broth of Trichoderma harzianum. There were someisonitrile antibiotics that were reported to have been isolated from Trichoderma sp. 1 ~ 4) and trichoviridin, one of these isonitriles, showed a melanin biosynthesis inhibitory activity5). In this paper we described the fermentation...

The field experiment was conducted to assess the “Influence of organic and inorganic source nutrient on Physico-Chemical properties Soil under Spinach in an Inceptisol Prayagraj, Uttar Pradesh, India” observe combined effects NPK fertilizer FYM soil health yield. results showed that application had a significant non-significant effect physico-chemical properties. maximum bulk density (1.28 Mg m...

this study determined some spectral characteristics and relationship between landsat spectral reflectance and soil surface color in the arid region of iran (kashan). the study carried out in the kashan area that covers 90000 ha. consisting of mountain, hills and flood plain. enhanced thematic mapper (etm+) data collected on july 2002 were used for this research. the color composite images produ...

–Sand is not only a precious mineral but also protecting the environment, buffer against strong tidal waves and storm, habitat for crustacean species and marine organisms, used for making concrete, filling roads, building sites, brick-making, making glass, sandpapers, reclamations, and in our tourism industry in beach attractions. Sand mining is the process of removal of sand and gravel where t...

The contribution of ammonia-oxidizing bacteria and archaea (AOB and AOA, respectively) to the net oxidation of ammonia varies greatly between terrestrial environments. To better understand, predict and possibly manage terrestrial nitrogen turnover, we need to develop a conceptual understanding of ammonia oxidation as a function of environmental conditions including the ecophysiology of associat...

The research of the physico-chemical, biological and toxicological parameters sediments soils reclaimed by them, as well analysis growth Scots pine seedlings, suggests that use a soil ameliorant at forest reclamation sites is advisable.

Organo-clay complexes in soil play an important role in the immobilization and persistence of xenobiotics. In this study, the fate of 14 C-labeled 4-(3,5-dimethylhept-3-yl)phenol (NP) and 4-chloro-2mehtylphenoxyacetic acid (MCPA) in soil was examined using incubation periods from 1d to 180d (NP) and 1d to 120d (MCPA). Special emphasis was on the distributions of the compounds and its degradatio...