AN AUXIN-INHIBITING SUBSTANCE FROM LIGHT-GROWN MAIZE SHOOTS

被引：57

作者：

HASEGAWA, K

TOGO, S

URASHIMA, M

MIZUTANI, J

KOSEMURA, S

YAMAMURA, S

机构：

[1] JUNSHIN GIRLS HIGH SCH,KAGOSHIMA 890,JAPAN

[2] KEIO UNIV,YOKOHAMA,KANAGAWA 223,JAPAN

来源：

PHYTOCHEMISTRY | 1992年 / 31卷 / 11期

关键词：

ZEA MAYS; GRAMINEAE; MAIZE SHOOTS; AUXIN-INHIBITING SUBSTANCE; 6-METHOXY-2-BENZOXAZOLINONE;

D O I：

10.1016/S0031-9422(00)97506-X

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

An auxin-inhibiting substance was isolated from light-grown maize shoots and its structure determined by spectral data as 6-methoxy-2-benzoxazolinone. It inhibited both the auxin-inducing bending in the Avena curvature test and the auxin-inducing elongation in the Avena coleoptile section test. The elongation inhibition against the coleoptile section test appeared in the presence of auxin, but not without auxin. The inhibition caused in the presence of auxin could be overcome by additional auxin. The present results suggest that the inhibitor is a potent antiauxin. It also inhibited the shoot and root elongation in etiolated timothy grass and Amaranthus seedlings.

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页码：3673 / 3676

页数：4

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