13 Result(s)
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Article
Bamboo polysaccharides elicit hypocrellin A biosynthesis of a bambusicolous fungus Shiraia sp. S9
Hypocrellin A (HA), a fungal perylenequinone from bambusicolous Shiraia species, is a newly developed photosensitizer for photodynamic therapy in cancer and other infectious diseases. The lower yield of HA is an ...
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Article
Open AccessEffects of branched-chain amino acids on Shiraia perylenequinone production in mycelium cultures
Perylenequinones from Shiraia fruiting bodies are excellent photosensitizers and widely used for anti-cancer photodynamic therapy (PDT). The lower yield of Shiraia perylenequinones becomes a significant bottlenec...
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Article
Open AccessContrasting regulation of live Bacillus cereus No.1 and its volatiles on Shiraia perylenequinone production
Fungal perylenequinones (PQs) are a class of photoactivated polyketide mycotoxins produced by plant-associated fungi. Hypocrellins, the effective anticancer photodynamic therapy (PDT) agents are main bioactive...
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Article
Open AccessThe signaling role of extracellular ATP in co-culture of Shiraia sp. S9 and Pseudomonas fulva SB1 for enhancing hypocrellin A production
Adenosine 5′-triphosphate (ATP) plays both a central role as an intracellular energy source, and a crucial extracellular signaling role in diverse physiological processes of animals and plants. However, there ...
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Article
Open AccessNitric oxide donor sodium nitroprusside-induced transcriptional changes and hypocrellin biosynthesis of Shiraia sp. S9
Nitric oxide (NO) is a ubiquitous signaling mediator in various physiological processes. However, there are less reports concerning the effects of NO on fungal secondary metabolites. Hypocrellins are effective...
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Article
Open AccessInducing perylenequinone production from a bambusicolous fungus Shiraia sp. S9 through co-culture with a fruiting body-associated bacterium Pseudomonas fulva SB1
Fungal perylenequinonoid (PQ) pigments from Shiraia fruiting body have been well known as excellent photosensitizers for medical and agricultural uses. The fruiting bodies are colonized by a diverse bacterial com...
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Open AccessEngineering of 3-ketosteroid-∆1-dehydrogenase based site-directed saturation mutagenesis for efficient biotransformation of steroidal substrates
Biosynthesis of steroidal drugs is of great benefit in pharmaceutical manufacturing as the process involves efficient enzymatic catalysis at ambient temperature and atmospheric pressure compared to chemical sy...
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Article
Open AccessBiochemical analysis and the preliminary crystallographic characterization of d-tagatose 3-epimerase from Rhodobacter sphaeroides
d-Tagatose 3-epimerase epimerizes d-fructose to yield d-psicose, which is a rare sugar that exists in small quantities in nature and is difficult to synthesize chemically. We aim to ex...
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Article
Multienzymatic cascade synthesis of fucosyloligosaccharide via a two-step fermentation strategy in Escherichia coli
To achieve multienzymatic cascade synthesis of fucosyl oligosaccharide from d-mannose by two-step fermentation pathway in Escherichia coli.
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Article
PEGylation of cytochrome c at the level of lysine residues mediated by a microbial transglutaminase
To establish a method for microbial transglutaminase (mTG)-mediated PEGylation of proteins at the level of lysine (Lys) residues.
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Article
Improved artemisinin accumulation in hairy root cultures of Artemisia annua by (22S, 23S)-homobrassinolide
When (22S, 23S)-homobrassinolide (SSHB) was added at 1 μg l−1 to hairy root cultures of Artemisia annua, the production of artemisinin reached to 14 mg l−1, an increment of 57% over the control. SSHB treatment le...
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Article
Artemisinin production in Artemisia annua hairy root cultures with improved growth by altering the nitrogen source in the medium
Murashige & Skoog medium was modified for enhancing artemisinin production in Artemisia annua hairy root cultures by altering the ratio of NO 3 − /NH ...
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Article
Stimulation of artemisinin production in Artemisia annua hairy roots by the elicitor from the endophytic Colletotrichum sp.
Artemisinin content in hairy roots of Artemisia annua was increased from 0.8 mg g−1 dry wt to 1 mg g−1 dry wt by using elicitor treatment of mycelial extracts from the endophytic fungus Colletotrichum sp. The inc...
