HYDROXAMIC ACIDS ACCUMULATION BY WHEAT CALLUS

被引：17

作者：

ZUNIGA, GE ^{[1
]}

COPAJA, SV ^{[1
]}

BRAVO, HR ^{[1
]}

ARGANDONA, VH ^{[1
]}

机构：

[1] UNIV CHILE,FAC CIENCIAS,SANTIAGO,CHILE

来源：

PHYTOCHEMISTRY | 1990年 / 29卷 / 07期

关键词：

callus; Gramineae; hydroxamic acids; Triticum; wheat;

D O I：

10.1016/0031-9422(90)83023-T

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：

Hydroxamic acids were quantified by HPLC in leaves of one-week-old seedlings and in 30 day-old callus tissues of four wheat cultivars. Leaves accumulated preferentially 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA). 2,4-Dihydroxy-1,4 (DIBOA) was detected only in cv SNA-3. By contrast, callus tissues accumulated both compounds and in cv Millaleu the only compound detected was DIBOA. The amount of hydroxamic acids in 30-day-old callus tissues was higher than in seven-day-old leaves in all cultivars. In addition, as cv SNA-3 callus aged the concentration of DIBOA decreased, and DIMBOA concentration increased. The results suggest that DIMBOA originates from DIBOA. © 1990.

引用

页码：2139 / 2141

页数：3

共 15 条

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