のり赤腐れ病の治ゆ中における葉体の細菌相と構成成分の変化

抄録

These experiments elucidated the mechanism involved in the activity of histidine in curing “akagusare”, or red rot disease, of the layer Porphyra yezoensis. The infected frond was cultured in seawater containing histidine or some amino acids for reference. The bacterial flora on the frond and its chemical constituents were analysed.
Results showed that Flavobacterium was the most predominant, followed by Alcaligenes, irrespective of the added amino acid and of the length of treatment. In the histidine-treated frond, the levels of photosynthetic pigments such as chlorophyll, phycoerythrin and phycocyanin, and of free amino acids were increased significantly.