Inactive Methyl Indole-3-Acetic Acid Ester Can Be Hydrolyzed and Activated by Several Esterases Belonging to the AtMES Esterase Family of Arabidopsis1[W][OA]
- Yue Yang, Richard Xu, C. Ma, A. C. Vlot, D. Klessig, E. Pichersky
- Environmental SciencePlant Physiology
- 8 May 2008
MeIAA is an inactive form of IAA, and the manifestations of MeIAA in vivo activity are due to the action of free IAA that is generated from Me IAA upon hydrolysis by one or more plant esterases.
Methylation of Gibberellins by Arabidopsis GAMT1 and GAMT2[W]
- M. Varbanova, Shinjiro Yamaguchi, E. Pichersky
- Environmental ScienceThe Plant Cell Online
- 1 January 2007
It is shown that GAMT1 expression is also localized mostly to seed, suggesting a role in seed development and suggesting that the mature mutant seeds contained higher levels of active GAs than wild-type seeds.
Characterization of a petunia acetyltransferase involved in the biosynthesis of the floral volatile isoeugenol.
Biochemical characterization of the protein encoded by this gene showed that it has acetyltransferase activity and is most efficient with coniferyl alcohol among the alcohol substrates tested, supporting the conclusion thatConiferyl acetate is the substrate of isoeugenol synthase.
Iridoids from Scrophularia buergeriana attenuate glutamate‐induced neurotoxicity in rat cortical cultures
- S. Kim, Kyung Ah Koo, S. Sung, C. Ma, Jeong Seon Yoon, Y. C. Kim
- BiologyJournal of Neuroscience Research
- 15 December 2003
Results suggested that Harp and 8‐MCA‐Harp protected primary cultured neurons against glutamate‐induced oxidative stress primarily by acting on the antioxidative defense system and on glutamatergic receptors, respectively.
Cellulase elicitor induced accumulation of capsidiol in Capsicum annumm L. suspension cultures
- C. Ma
- BiologyBiotechnology Letters
- 1 May 2008
The present study shows that induction of capsidiol production in the C. annuum is mediated by PLA2 activation.
KD-501, a standardized extract of Scrophularia buergeriana has both cognitive-enhancing and antioxidant activities in mice given scopolamine.
Meso‐dihydroguaiaretic acid and licarin A of Machilus thunbergii protect against glutamate‐induced toxicity in primary cultures of a rat cortical cells
- C. Ma, So R. Kim, Jinwoong Kim, Y. C. Kim
- Biology, ChemistryBritish Journal of Pharmacology
- 1 November 2005
The results suggest that MDGA and licarin A significantly protect primary cultured neuronal cells against glutamate‐induced oxidative stress, via antioxidative activities.
Neuroprotective lignans from the bark of Machilus thunbergii.
Isoguaiacin, meso-dihydroguaiaretic acid, licarin A and (+)-guaiacIn had significant neuroprotective activities against glutamate-induced neurotoxicity in primary cultures of rat cortical cells at concentrations ranging from 0.1 microM to 10.0 microM.
Simultaneous quantification of marker components in Ojeok-san by HPLC–DAD
- J. Weon, Hwayong Park, H. Yang, J. Ma, C. Ma
- Chemistry, MedicineJournal of Natural Medicines
- 1 April 2011
The results of validation showed that the HPLC method was stable and very accurate for the quantification of eight marker components in Ojeok-san, a traditional Korean herbal medicine.
Neuroprotective Properties of Compounds Extracted from Dianthus superbus L. against Glutamate-induced Cell Death in HT22 Cells
- Bo-Ra Yun, H. Yang, J. Weon, Jiwoo Lee, Min Rye Eom, C. Ma
- ChemistryPharmacognosy Magazine
- 1 April 2016
D. superbus extract significantly protected on glutamate-induced cell death in HT22 cells and compounds isolated from it exhibited neuroprotective properties, suggesting therapeutic potential for applications in neurotoxic diseases.