Biotransformations of 4alpha- and 4beta-hydroxyeudesmane derivatives by the filamentous fungus Gliocladium roseum were achieved. Hydroxylation at C-11 was the main action of this microorganism, producing new cryptomeridiol (12 and 14) and 4-epi-cryptomeridiol derivatives (6 and 7), respectively, in good yields. The biotransformation activity of G. roseum toward 4beta-hydroxyeudesmane was focuse...

The antagonistic activities of five biocontrol agents: Trichoderma harzianum, Gliocladium roseum, Bacillus subtilis, Streptomyces noursei and Streptomyces natalensis, were tested in vitro against Colletotrichum acutatum and Colletotrichum gloeosporioides, the causal agents of anthracnose disease in fruit crops. The microbial antagonists inhibited mycelial growth in the dual culture assay and co...

Pulp and paper mill effluents pollute water, air and soil, causing a major threat to the environment. Several methods have been attempted by various researchers throughout the world for the removal of colour from pulp and paper mill effluents. The biological colour removal process uses several classes of microorganisms--bacteria, algae and fungi--to degrade the polymeric lignin derived chromoph...

The efficacy of four fungal bioagents viz., Trichoderma hamatum, Trichoderma harzianum, Trichoderma viride, Gliocladium virens and two bacterial bioagents namely Pseudomonas fluorescens and Bacillus subtilis were evaluated against the chickpea vascular wilt pathogen, Fusarium oxysporum f.sp. ciceri in vitro condition using Dual Culture Technique. Among the fungal bioagents, T. harzianum produce...

In an earlier study, we reported the presence of the antibiotic, heptelidic acid, in the fungus, Gliocladium virens1). From this same organism we have isolated two additional compounds, one of which is selectively active against members of the Oomycetes2). We call this compound gliovirin (1). The second compound, L,L-phenylalanine anhydride (9), may be the biosynthetic precursor to gliovirin. G...

Seeds of rice, jowar, ground nut and fingermillet were inoculated with microorganisms like Chaetomium globosum, Aureobasidium pullulans, Gliocladium roseum, Streptomyces sp. Pseudomonas pseudomallei YL-1 along with fertilizer (NPK 17:17:17) and were grown under laboratory conditions in earthen pots for forty five days. The phenotypic traits were analyzed and compared with control and fertilizer...