When ABA biosynthesis was inhibited by nordihydroguaiaretic acid (NDGA), an inhibitor of the ABA anabolic enzyme 9-cis-epoxycarotenoid dioxygenase (NCED), rice seed germination showed no response.

当ABA的合成被去甲二氢愈创木酸（NDGA），ABA合成酶9-顺式-环氧类胡萝卜素双加氧酶的抑制因子所抑制，水稻种子萌发无影响。

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