Effects of hydroxylysine on the growth and morphology of Rhizobium leguminosarum bv. phaseoli
1998
IGAWA, Keiko | KIKUCHI, Kaoru | Satō, Tetsuya | OHWADA, Takuji
It was found that both bacteroids and free-living cells of Rhizobium leguminosarum bv. phaseoli were highly susceptible to hydroxylysine (Hyl) and the inhibition of RNA and/or protein synthesis caused by the hydroxyl residue of Hyl appeared to be responsible for the growth inhibition. The size of free-living cells was enlarged by the addition of Hyl and some cells reached around 5 μm, which were close to the length of bacteroids. Under the same condition, the polyhydroxybutyrate (PHB) content in the cells was conspicuously increased. These results suggest that Hyl is not only a notable growth inhibitor of Rhizobium bacteria but also plays a role in a differentiation to bacteroids.
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