Institute of Plant Biology and Physiology of the University, Place de la Riponne, CH-1005, Lausanne, Switzerland.
Planta. 1977 Jan;134(1):23-7. doi: 10.1007/BF00390089.
Quantitative analyses of abscisic acid (ABA) in different parts of maize root tips (Zea mays L. cv. Kelvedon 33) were performed by mass fragmentography using the hexadeuterated analog of ABA as internal standard. It was found that the cap and the apex contained 36.1 μg and 66.5 μg ABA kg(-1) fresh weight, respectively. The possibility that the growth regulator formed in the cap and inhibiting the elongation of the extending zone of the root is ABA is discussed.
采用质量碎片谱法,以 ABA 的氘代类似物作为内标,对玉米根尖不同部位的脱落酸(ABA)进行定量分析。结果发现,根冠和根尖分别含有 36.1 μg 和 66.5 μg ABA kg(-1) 鲜重。讨论了在根冠中形成并抑制根伸长区伸长的生长调节剂是否为 ABA 的可能性。