Publications by authors named "Jinjin Qiao"

Cellulose is an important abundant renewable resource on Earth, and the microbial cellulose utilization mechanism has attracted extensive attention. Recently, some signalling molecules have been found to regulate cellulose utilization and the discovery of underlying signals has recently attracted extensive attention. In this paper, we found that the hydrogen sulfide (HS) concentration under cellulose culture condition increased to approximately 2.

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Background: Edible mushrooms are delicious in flavour and rich in high-quality protein and amino acids required by humans. A transcription factor, general control nonderepressible 4 (GCN4), can regulate the expression of genes involved in amino acid metabolism in yeast and mammals. A previous study revealed that GCN4 plays a pivotal role in nitrogen utilization and growth in Ganoderma lucidum.

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Fungal hydrophobins have many important physiological functions, such as maintaining hydrophobicity and affecting virulence, growth, and development. In Ganoderma lucidum, the molecular regulation mechanisms of hydrophobins in mushroom are unclear. In this study, we investigated a hydrophobin protein 1 (Hyd1) in G.

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Fungal AreA is a key nitrogen metabolism transcription factor in nitrogen metabolism repression (NMR). Studies have shown that there are different ways to regulate AreA activity in yeast and filamentous ascomycetes, but in , how AreA is regulated is unknown. Here, a gene from with similarity to of filamentous ascomycetes was identified.

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Nitrogen metabolism can regulate mycelial growth and secondary metabolism in Ganoderma lucidum. As an important enzyme in intracellular amino acid metabolism, glutamate oxaloacetate transaminase (GOT) has many physiological functions in animals and plants, but its function in fungi has been less studied. In the present study, two GOT isoenzymes were found in G.

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Article Synopsis
  • Shiitake mushrooms are the second largest edible fungus globally, known for their unique aroma primarily from the compound lenthionine.
  • Research indicates that citric acid can enhance lenthionine synthesis, with optimal results found at a concentration of 300 μM over 15 days, and further refined conditions yielding 406 μM/L over 15.6 days, resulting in a lenthionine content of 130 μg/g.
  • Key enzymes in lenthionine production, γ-glutamyl transpeptidase (LEGGT) and cystine sulfoxide lyase (LECSL), showed increased expression with citric acid treatment, while silencing these genes significantly reduced lenthion
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