Fatty acid hydroperoxide lyase in tobacco cells cultured in vitro |
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Authors: | Jiro Sekiya Satoru Tanigawa Tadahiko Kajiwara Akikazu Hatanaka |
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Affiliation: | Department of Agricultural Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi 753, Japan |
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Abstract: | Fatty acid hydroperoxide lyase (HPO lyase) was found in green and non-green tobacco cells cultured in vitro. The HPO lyase activity in non-green cells was - of that in green cells. When the cells were transferred from the light to dark conditions or vice versa, cells turned non-green or green according to the light conditions. The HPO lyase activity also changed according to the light conditions, but the changes in HPO lyase activities were not proportional to the changes in chlorophyll contents. These results suggest that at least two types of HPO lyases are present in the green cells. One type of HPO lyase is perhaps common both to the green and non-green cells; another one is chloroplastic. The fatty acid compositions of cells and substrate specificities of HPO lyase differed between green and non-green cells. |
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Keywords: | Solanaceae cultured tobacco cells green cells fatty acid hydroperoxide lyase linoleic acid linolenic acid BSA, bovine serum albumin 13-HPOLMe, methyl ester of 13-HPOLA 13-HPOLNMe, methyl ester of 13-HPOLNA HPO lyase, fatty acid hydroperoxide lyase. |
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