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Wang Y.,China Korea Joint Institute for Animal Science of Jilin Province
Genetics and molecular research : GMR | Year: 2012

Recently, we found that the Arabidopsis TT19 protein, a glutathione S-transferase, has two functional domains that influence both anthocyanin and proanthocyanidin accumulation. To further understand the function of this protein in the other species, we cloned a cDNA encoding a glutathione S-transferase (namely CMGSTF12) from Camelina sativa, an oil crop that has received renewed interest due to its biofuel value and high omega-3 levels. Southern blot analysis demonstrated one copy of CMGSTF12 in C. sativa. Transformation of the Arabidopsis loss-of-function tt19-1 mutant with CMGSTF12 cDNA complemented accumulation of anthocyanin in vegetative tissues and resulted in the wild-type level of proanthocyanidin (both extractable and unextractable) in seeds. No obvious flavonoid accumulation changes were detected in the transgenic seeds, indicating that CMGSTF12 may only involve the lower flavonoid pathway, further proving that the TT19 protein controls accumulation of unextractable proanthocyanidin. Source


Tang Y.,China Korea Joint Institute for Animal Science of Jilin Province | Wang Y.,China Korea Joint Institute for Animal Science of Jilin Province | Wang Z.,Jilin Agricultural University | Zhang J.,China Korea Joint Institute for Animal Science of Jilin Province | And 10 more authors.
Natural Product Research | Year: 2013

Three novel metabolites (1, 5 and 10) were isolated from a 25-L fermentation broth of Actinomyces sp. JN411010 together with 11 related compounds. Their structures were determined on the basis of 1D and 2D NMR, as well as HR-ESI-MS spectroscopic data analyses. Compounds 1-2, 5-8 and 10 displayed moderate antimicrobial activities against Gram-positive and Gram-negative bacteria. Biosynthetic pathway of 5 and 10 was proposed to be catalysed by polyketide and non-ribosomal peptide gene clusters, respectively. © 2013 © 2013 Taylor & Francis. Source

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