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Fig. 6 | BMC Plant Biology

Fig. 6

From: Optimization of salicylic acid and chitosan treatment for bitter secoiridoid and xanthone glycosides production in shoot cultures of Swertia paniculata using response surface methodology and artificial neural network

Fig. 6

a. HPTLC fingerprints of secoiridoid glycosides (a): where 1–10 tracks represent tissue cultured plant samples (1 and 2 control plants; 3–6 salicylic acid treated cultured plant samples; 7–10 chitosan treated cultured plant samples) matched with standard compounds of swertiamarin (ii) and amarogentin (i) whereas (b) and (c) represent overlay spectra of plant samples with standard compounds- amarogentin (b) and swertiamarin (c). b. HPTLC fingerprints of xanthone glycoside (a): where 1–10 tracks represent tissue cultured plant samples (1 and 2 control plants; 3–6 salicylic acid treated cultured plant samples; 7–10 chitosan treated cultured plant samples) matched with standard compound of mangiferin (Std.) whereas (b) represents overlay spectra of plant samples with standard compound mangiferin (b)

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