10 Result(s)
within
Ya-jun Liu
Life Sciences
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Article
Open AccessBiological cellulose saccharification using a coculture of Clostridium thermocellum and Thermobrachium celere strain A9
An anaerobic thermophilic bacterial strain, A9 (NITE P-03545), that secretes β-glucosidase was newly isolated from wastewater sediments by screening using esculin. The 16S rRNA gene sequence of strain A9 had 1...
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Response characteristics of the membrane integrity and physiological activities of the mutant strain Y217 under exogenous butanol stress
Butanol inhibits bacterial activity by destroying the cell membrane of Clostridium acetobutylicum strains and altering functionality. Butanol toxicity also results in destruction of the phosphoenolpyruvate-carboh...
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Article
Integration of bacterial expansin-like proteins into cellulosome promotes the cellulose degradation
Cellulosomes are multi-enzyme complexes assembled by cellulases and hemicellulases through dockerin-cohesin interactions, which are the most efficient system for the degradation of lignocellulosic resources in...
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Article
Open AccessFunctional analysis of Flavonoid 3′,5′-hydroxylase from Tea plant (Camellia sinensis): critical role in the accumulation of catechins
Flavonoid 3′,5′-hydroxylase (F3′5′H), an important branch point enzyme in tea plant flavan-3-ol synthesis, belongs to the CYP75A subfamily and catalyzes the conversion of flavones, flavanones, dihydroflavonols...
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Improvement of ClosTron for successive gene disruption in Clostridium cellulolyticum using a pyrF-based screening system
Clostridium includes a number of species, such as thermophilic Clostridium thermocellum and mesophilic Clostridium cellulolyticum, producing biofuels and chemicals from lignocellulose, while gene...
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Article
Overexpression of human osteopontin increases cell proliferation and migration in human embryo kidney-293 cells
Malignant tumors are characterized by dysregulated cell growth and the metastasis of secondary tumors. Numerous studies have documented that osteopontin (OPN) plays a key role in regulating tumor progression a...
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Nematicidal activity of Paecilomyces spp. and isolation of a novel active compound
Many species of Paecilomyces are entomogenous fungi and several are efficacious toward nematodes. To study the potential of Paecilomyces species in controlling nematodes, fungal extracts of 40 Paecilomyces spp. w...
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The inhibition of in vivo tumorigenesis of osteosarcoma (OS)-732 cells by antisense human osteopontin RNA
Osteopontin (OPN) is a secreted, non-collagenous, sialic acid-rich protein which functions by mediating cell-matrix interactions and cellular signaling via binding with integrins and CD44 receptors. An increas...
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Preliminary results on nematicidal activity from culture filtrates of Basidiomycetes against the pine wood nematode,Bursaphelenchus xylophilus (Aphelenchoididae)
One hundred and eighty one fungal species that were isolated from the fresh fruiting bodies collected in the Mountains of Pu Er County of Yunnan Province, China were tested on the pine wood nematode,Bursaphelench...
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Article
Antimicrobial Activities of Selected Cyathus Species
Twelve selected Cyathus species were tested for their abilities to produce antimicrobial metabolites. Most of them were found to produce secondary exo-metabolites that could induce morphological abnormalities of ...
