Junichi Ueda

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The Arabidopsis mutant defective in anther dehiscence1 (dad1) shows defects in anther dehiscence, pollen maturation, and flower opening. The defects were rescued by the exogenous application of jasmonic acid (JA) or linolenic acid, which is consistent with the reduced accumulation of JA in the dad1 flower buds. We identified the DAD1 gene by T-DNA tagging,(More)
The Arabidopsis mutant defective in anther dehiscence1 ( dad1 ) shows defects in anther dehiscence, pollen maturation, and flower opening. The defects were rescued by the exogenous application of jasmonic acid (JA) or linolenic acid, which is consistent with the reduced accumulation of JA in the dad1 flower buds. We identified the DAD1 gene by T-DNA(More)
Elongation growth of etiolated hypocotyls of cress (Lepidium sativum L.) was suppressed when they were exposed to basipetal hypergravity at 35 x g and above. Acceleration at 135 x g caused a decrease in the mechanical extensibility and an increase in the minimum stress-relaxation time of the cell wall. Such changes in the mechanical properties of the cell(More)
Involvement of auxin polar transport in flower formation of Arabidopsis thaliana was studied using a pinformed (pin) mutant (Rpin) transformed with the indoleacetamide hydrolase (iaaH) gene and the phenocopy of the pin mutant, which was induced by 9-hydroxyfluorene-9-carboxylic acid (HFCA). The application of indoleacetamide (IAM) did not change aberrant(More)
An arabinogalactan-protein macroarray of all 48 Arabidopsis arabinogalactan-protein genes was prepared as a handy detection system for arabinogalactan-protein gene expression. The major transcript in inflorescence stems was identified as AtFLA11. AtFLA11 is categorized as a fasciclin-like arabinogalactan-protein that possesses a fasciclin domain with a cell(More)
The morphology, growth and development of higher plants are strongly influenced by environmental stimuli on the earth, which affect the changes in the dynamics of plant hormones in plants. Qualitative and quantitative changes in plant hormones are the most important internal factor to regulate plant growth and development. Among them, auxin (IAA) is of most(More)
Seedlings of rice, maize, cress, pea, and azuki bean were grown on a three-dimensional clinostat and changes in their vegetative growth processes were analyzed. A balanced relationship among the length or the weight of each organ was observed in these species even on the clinostat. Growth of pea second internodes is supported by the transport of sugars(More)
The principal objective of the space experiment, BRIC-AUX on STS-95, was the integrated analysis of the growth and development of etiolated pea and maize seedlings in space, and the effect of microgravity conditions in space on auxin polar transport in the segments. Microgravity conditions in space strongly affected the growth and development of etiolated(More)
The effect of methyl jasmonate (JA-Me) on the induction of gum was studied in relation to the action of ethylene in peach (Prunus persica Batsch cv. Benishimizu) shoots. JA-Me applied at concentrations of 0.1–2.5% (w/w) in lanolin paste to current growing or older shoots substantially induced gums 3 days after treatment. The amount of gums exuded increased(More)
Growth and development of plants are regulated by interactions among different plant growth substances. During stress conditions, both abiotic and biotic, interaction of the some hormones activates defense responses. The present review describes the interaction between jasmonates and auxin in regulation of some physiological processes in plant growth and(More)