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Enhancement of shikonin production in single- and two-phase suspension cultures of Lithospermum erythrorhizon cells using low-energy ultrasound.
This work demonstrates the use of low-energy ultrasound (US) to enhance secondary metabolite production in plant cell cultures and two key enzymes for the secondary metabolism biosynthesis of cells, phenylalanine ammonia lyase and p-hydroxybenzoic acid geranyltransferase were found to be stimulated by the US.
Ultrasound‐Induced Stress Responses of Panax ginsengCells: Enzymatic Browning and Phenolics Production
The stress metabolic activities of Panax ginseng cells induced by low‐energy ultrasound (US) were examined and high‐pressure shock and fluid shear stress arising from acoustic cavitation were regarded as the major causes of the responses.
Two new piperidine alkaloids from the leaves of Microcos paniculata
Two new piperidine alkaloids, microcosamines A and B, were isolated from the leaves of Microcos paniculata and showed significant larvicidal activity against Culex quinquefasciatus.
Two new sesquiterpene glycosides from Pogostemon cablin
Two new rearranged patchoulane sesquiterpene glycosides, 3α-hydroxypatchoulol 3-O-β-d-glucopyranoside (1) and 15-hydroxypatchoulol 15-O-β-d-glucopyranoside (2) together with rubusoside, a known
Sesquiterpenes from the mycelial cultures of Dichomitus squalens.
Three new sesquiterpenes including a rearranged hirsutane, dichomitol, and an aromadendrane, 2beta,13-dihydroxyledol, were isolated from mycelial solid cultures of Dichomitus squalens and their nematicidal activities against Bursaphelenchus xylophilus were assessed.
Carbon and nitrogen accumulation and interspecific competition in two algae species, Pyropia haitanensis and Ulva lactuca, under ocean acidification conditions
If the atmospheric CO2 continues to increase as predicted, Pyropia haitanensis would experience the coupled effects of ocean acidification (OA) and interference from the epiphyte alga Ulva lactuca.