Effect of rhodanine and 2(5H)-thiophenone in green algae and liverwort cells
1997
Muro, C. (Okayama Univ. (Japan). Faculty of Pharmaceutical Science) | Tsujibo, H. | Inamori, Y. | Sumida, M. | Tanaka, T. | Wakabayashi, K. | Boeger, P.
Rhodanine (2-thioxo-4-thiazolidinone) and 2(5H)-thiophenone inhibit germination and root growth of several plants. Using Scenedesmus acutus and Marchantia polymorpha L., these compounds were assayed with respect to degradation of chlorophyll, light-induced ethane formation and growth inhibition to determine the action mechanism. Chlorophyll reduction and growth inhibition of liverwort cells were quantitatively correlated with light-induced ethane formation of Scenedesmus in the presence of these compounds. Furthermore, we found that rhodanine itself decreased the chlorophyll content in liverwort cell s and produced ethane with Scenedesmus cells in the light although no protoporphyrin IX (PPIX) accumulated. Diuron did not influence ethane formation with these two compounds s is observed with peroxidizing herbicides like oxyfluorfen. Apparently, rhodanine prevents PPIX accumulation by AFM
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