Induction by ozone of ethylene production and an ACC oxidase cDNA in rice (Oryza sativa L.) leaves |
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| Authors: | Takehiro Ohki Hideki Matsui Atsushi Nagasaka Toshihito Yoshioka Akiyoshi Watanabe Shigeru Satoh |
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| Affiliation: | (1) Laboratory of Bioadaptation, Graduate School of Agricultural Science, Tohoku University, Tsutsumidori-amamiyamachi 1-1, Aoba-ku, Sendai, 981-8555, Japan;(2) Laboratory of Biophysical Chemistry, Graduate School of Agricultural Science, Tohoku University, Tsutsumidori-amamiyamachi 1-1, Aoba-ku, Sendai, 981-8555, Japan;(3) Asahi Chemical Industry Co., Ltd., Miyazaki, Japan |
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| Abstract: | Exposure to ozone at 1 µl l–1 for 6 h induced ethylene production in rice (Oryza sativa L. cv. Hitomebore) leaves. The stimulation of ethylene production was detectable 2 h after the start of the exposure to ozone, and lasted for 6 h after the exposure. A 429-bp cDNA fragment encoding ACC oxidase was obtained by RT-PCR from ozone-treated rice leaves. Its nucleotide sequence and deduced amino-acid sequence had 97.2% and 94.4% identity, respectively, to those of OS1A1COX, which was previously obtained from deepwater rice. The abundance of the cDNA increased in accordance with the induction of ethylene production by the exposure to ozone. |
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| Keywords: | 1-aminocyclopropane-1-carboxylate (ACC) oxidase ethylene Oryza sativa ozone rice |
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