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101.
Aylin Cesur Ryousuke Yamamoto Yasuhiko Asada Akira Watanabe 《Biochemistry and Biophysics Reports》2022
The biochemical mechanism underlying the development of fruiting bodies in Flammulina velutipes, an edible mushroom, was investigated using the YBLB colorimetric assay to distinguish between the normal strain (FVN-1) and the degenerate strain (FVD-1). In this assay, the color of the YBLB medium (blue-green) inoculated with FVN-1 exhibiting normal fruiting body development changed to yellow, while the color of the medium inoculated with FVD-1 changed to blue. In this study, we found that this color difference originated from extracellular laccase produced by FVN-1. Moreover, FVN-1 exhibited considerably higher extracellular laccase activity than FVD-1, under conditions facilitating fruiting body formation. Overall, these findings suggest that extracellular laccase is involved in the fruiting body development process in F. velutipes. 相似文献
102.
The effect of tetracyclines on the synthesis of proteins in Propionibacterium avidum and P. acnes was examined. Synthesis of an extracellular lipase by P. avidum was slightly more sensitive to inhibition by tetracycline than total (cellular and extracellular) protein synthesis. The effect of tetracycline and other analogues on the synthesis of secreted proteins was also examined in P. avidum and P. acnes by protein radiolabelling experiments. In all cases the synthesis of secreted proteins was only about 2-fold more sensitive to inhibition by tetracyclines than total protein synthesis. These results contrast with previously published findings in Escherichia coli which show that synthesis of secreted proteins is highly susceptible to inhibition by tetracycline. The implications of these findings in relation to inhibition of membrane bound ribosomes by tetracyclines are discussed. 相似文献