On the CMA medium, strain A-43-1 produces red water-soluble pigment, when the nematodes tested are added onto the media with red pigment, they gradually are dyed red and dead after about six hours.

在CMA上，菌株A-43-1经一定时间培养产生水溶性红色色素。测试的活线虫在此培养基上六个小时左右，红色素周围的线虫被染成红色并死亡；

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Depending on the experimental result and the theory of sound wave propagation in layered medium, a mechanism of gradient water-soluble polymer solution was developed.

根据连续分层介质中声波传播理论建立了计算水溶性高分子溶解过程中声衰减的数学模型。计算结果与实验结果一致。

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The results showed that the black maize pigment was soluble in straight polar solvents or in acid medium.

结果表明：黑玉米色素可溶于强极性溶剂或稀酸溶液中；

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