General Information of Factor (ID: FP085)
  Factor Name YES Medium
  Factor Type Environmental Conditions
  Factor Description
Each microbial strain has the potential to produce multiple compounds, but only subsets of these compounds are made under specific growth conditions. Therefore, variations in cultivation parameters can elicit the production and discovery of new secondary metabolites by changing cultivation parameters such as media composition, various nutrients, trace elements, physical parameters (i.e., pH, temperature), and chemical elicitors (i.e., sub-lethal concentrations of antibiotics, communication molecules). Moreover, the co-cultivation of microbes and the addition of factors affecting epigenetic control can also be framed within the OSMAC principle.
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 The Content Variation of Natural Product Induced by This Factor
      Species Name: Alternaria alternata isolate Tche153
          Species Info Click to show the detail information of this Factor
          Experiment Detail
Apparently healthy leaves of T. chebula (Family Combretaceae) were collected from Suanluang Rama IX Public Park, Bangkok, Thailand. The endophytic fungus A. alternata Tche-153 was cultivated on PDA agar plates at 25 ℃ for 7 days. Six pieces (@ 0.5 × 0.5 cm) of mycelial agar plugs were inoculated into a 1000-ml Erlenmeyer flask containing 200 ml of yeast extract sucrose (YES) broth and incubated at 25 ℃ under still conditions for 21 days.
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            1-Isobenzofuranacetic acid, 1,3-dihydro-4-hydroxy-3-oxo-, (+-)- [1]
               Factor Link Part Location NP Content
 
YES medium (25℃ + 21 days)
   NP Info    Leaves Bangkok, Thailand
NP Content: 6 mg
            7-Hydroxy-2,5-Dimethyl-4H-1-Benzopyran-4-One [1]
               Factor Link Part Location NP Content
 
YES medium (25℃ + 21 days)
   NP Info    Leaves Bangkok, Thailand
NP Content: 3 mg
            Altenuic Acid [1]
               Factor Link Part Location NP Content
 
YES medium (25℃ + 21 days)
   NP Info    Leaves Bangkok, Thailand
NP Content: 33 mg
            Altenusin [1]
               Factor Link Part Location NP Content
 
YES medium (25℃ + 21 days)
   NP Info    Leaves Bangkok, Thailand
NP Content: 10 mg

References
1 Azole-synergistic Anti-Candidal Activity of Altenusin, a Biphenyl Metabolite of the Endophytic Fungus Alternaria alternata Isolated from Terminalia chebula Retz.