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The main auxin biosynthesis pathway in Arabidopsis
- Kiyoshi Mashiguchi, K. Tanaka, +12 authors H. Kasahara
- Chemistry, MedicineProceedings of the National Academy of Sciences
- 24 October 2011
It is demonstrated that the TAA family produces indole-3-pyruvic acid (IPA) and the YUC family functions in the conversion of IPA to IAA in Arabidopsis by a quantification method of IPA using liquid chromatography–electrospray ionization–tandem MS.
Regulation of Abscisic Acid Signaling by the Ethylene Response Pathway in Arabidopsis
- M. Ghassemian, E. Nambara, S. Cutler, H. Kawaide, Y. Kamiya, P. McCourt
- Biology, MedicinePlant Cell
- 1 July 2000
It is concluded that ethylene appears to be a negative regulator of ABA action during germination, while the ethylene response pathway positively regulates some aspects of A BA action that involve root growth in the absence of ethylene.
Repressing a Repressor
- A. Silverstone, H. Jung, A. Dill, H. Kawaide, Y. Kamiya, T. Sun
- Biology, MedicineThe Plant Cell Online
- 1 July 2001
The effect of rga on GA4 gene expression and the effect of GA on RGA protein level allow us to identify part of the mechanism by which GA homeostasis is achieved.
Analysis of the expression of CLA1, a gene that encodes the 1-deoxyxylulose 5-phosphate synthase of the 2-C-methyl-D-erythritol-4-phosphate pathway in Arabidopsis.
The beta-glucuronidase expression pattern driven from the CLA1 gene regulatory region supports the northern and protein data while also showing that this gene has some level of expression in most tissues of the plant.
The role of ABI3 and FUS3 loci in Arabidopsis thaliana on phase transition from late embryo development to germination.
Examination of expression patterns of genes which were normally activated during late embryo development and germination in Arabidopsis abi3 and fus3 mutants indicates that ABI3 and FUS3 negatively regulate a particular set of genes during late embryos development.
The GA2 locus of Arabidopsis thaliana encodes ent-kaurene synthase of gibberellin biosynthesis.
Results show that the GA2 locus encodes KS, and the recombinant AtKS protein derived from the ga2-1 mutant is truncated by 14 kD at the C-terminal end and does not contain significant KS activity in vitro.
Identification and functional analysis of bifunctional ent‐kaurene synthase from the moss Physcomitrella patens
- Ken-ichiro Hayashi, H. Kawaide, Miho Notomi, Yuka Sakigi, A. Matsuo, H. Nozaki
- Biology, MedicineFEBS letters
- 13 November 2006
PpCPS/KS is a bifunctional cyclase and, like fungal CPS/KS, directly synthesizes the ent‐kaurene skeleton from GGDP, and shows high similarity with CPSs and abietadiene synthase from higher plants.
Characterization of an Arabidopsis thaliana mutant that has a defect in ABA accumulation: ABA-dependent and ABA-independent accumulation of free amino acids during dehydration.
Results suggest that dehydration-induced accumulation of free leucine and isoleucine is achieved independent of ABA, as compared to the wild-type plants where this mutation was isolated.
Genetic evidence for the role of isopentenyl diphosphate isomerases in the mevalonate pathway and plant development in Arabidopsis.
A critical role is demonstrated for IPI in isoprenoid biosynthesis via the MVA pathway, and this work implies that IPI is essential for the maintenance of appropriate levels of IPP and DMAPP in different subcellular compartments in plants.
Phytochrome regulates gibberellin biosynthesis during germination of photoblastic lettuce seeds.
- T. Toyomasu, H. Kawaide, W. Mitsuhashi, Y. Inoue, Y. Kamiya
- Biology, MedicinePlant physiology
- 1 December 1998
Red light promotes GA1 synthesis in lettuce seeds by inducing Ls3h1 expression via phytochrome action, and this effect was canceled by a subsequent far-red-light treatment.