نتایج جستجو برای: endophytic actinomycetes
تعداد نتایج: 7982 فیلتر نتایج به سال:
Background: Paclitaxel (TaxolTM) is an important anticancer drug with a unique mode of action. The biosynthesis of paclitaxel had been considered restricted to the Taxus species until it was discovered in Taxomyces andreanae, an endophytic fungus of T. brevifolia. Subsequently, paclitaxel was found in hazel (Corylus avellana L.) and in several other endophytic fungi. The distribution of paclita...
the focus of this study was antimicrobial membrane-activity of actinomycetes isolated from soils of iran. in this work, soil samples were collected from desert and farming zones of northern and central iran. a total number of 45 actinomycetes were isolated from the soil samples. in the primary screening performed to evaluate antimicrobial activity, isolated microorganisms were analyzed in terms...
Simulated municipal solid waste (MSW) based on the actual proportional characteristics of MSW was loaded into a simulated leachate recirculation bioreactor landfill and the abundance of common and tolerant microbes exposed to dibutyl phthalate (DBP) were investigated in the initial, acidic and methanogenic phases. The results showed that the abundance of bacteria was greatest, while that of act...
Pathogenic microorganisms have evolved sophisticated mechanisms to inactivate antibiotics and rendered an urgent need for new antibiotics that would target the emerging multidrug-resistance (Butler et al., 2013). Consequently, search for novel sources of potent antibiotics is desperately needed to develop potent drugs. Microbial resources have made an incredible contribution to the antibiotic d...
asparaginase and amylase are widely used enzymes in various industries, which can be produced by endophytic fungi. in this study, the ability of producing these two enzymes in endophytic fungi isolated from six species of thymus has been reported for the first time in the world. among 89 isolates of the test, 34 isolates produced asparaginase among which m24 (fusarium subglutinans) displayed th...
In order to identify some endophytic fungi in common yew trees, healthy plant samples were investigated. In this study, 10 fungal species including Absidia spinosa, Aureobasidium pullulans, Lecanicillium lecanii, Nemania serpens, Pseudodictyosporium elegans, Leucostoma persoonii, Epicoccum nigrum, Stachybotrys chartarum, Gibberella tricincta and Gibberella baccata were identified as endophytic ...
Endophytic fungi are fungi that colonize internal tissues of plants; several biologically active compounds have been isolated from these fungi. There are few studies of compounds isolated from endophytic fungi of Amazon plants. Thus, this study aimed the isolation and structural identification of ergosterol (1), ergosterol peroxide (2), mevalonolactone (3), cytochalasin B (4) and cytochalasin H...
Monsanto’s Bt-cotton NC 33B, planted in northern China for more than one decade, effectively controls cotton bollworms; however the understanding of its potential effects on soil microorganisms is limited. The dynamics of eubacterial, fungal and actinomycetes population sizes in rhizosphere soil of the Bt cotton were analysed by realtime PCR (qPCR) at the different growth stages under field con...
Actinomycetes populate soils and aquatic sediments that impose biotic and abiotic challenges for their survival. As a result, actinomycetes metabolism and genomes have evolved to produce an overwhelming diversity of specialized molecules. Polyketides, non-ribosomal peptides, post-translationally modified peptides, lactams, and terpenes are well-known bioactive natural products with enormous ind...
Endophytic fungi are an integral part and even seen as host organs of plant, influencing physiology, ecology, and development of host plants. However, little is known about micro-ecosystems and functional interactions of endophytic fungi in root-parasitic interactions of Cynomorium songaricum and its host Nitraria tangutorum. Here, distribution and dynamics of endophytic fungi were objectively ...
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