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KMID : 0380319920490000083
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Journal of Korean Research Institute for Better Living
1992 Volume.49 No. 0 p.83 ~ p.89
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Effect of Mannose on Kinetin-induced Ethylene Production from Corn Coleoptile Segments
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Abstract
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Effect of mannose on kinetin induced ethylene production was examined in corn coleoptile segments. Kinetin induced ethylene production was inhibited 40％ in 6 hours and 75％ in 12 hours of incubation period by 50mM of mannose. However, it was not inhibited by other sugars such as sucrose, glucose. or fructose. To elucidate how mannose inhibited the kinetin induced ethylene production, uptake of benzyladenine(BA-8-^14C) into the tissue was investigated. Mannose inhibited BA-8-^14C uptake into the tissue about 40％ after 12 hour incubation period, but the other sugars did not have such an inhibitory effect. These results may suggest that mannose inhibits the kinetin induced ethylene production by suppressing kinetin uptake into the tissue.
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