SOIL TRANSFORMATION OF WHEAT AND CORN METABOLITES MBOA AND DIM2BOA INTO AMINOPHENOXAZINONES

被引：37

作者：

KUMAR, P ^{[1
]}

GAGLIARDO, RW ^{[1
]}

CHILTON, WS ^{[1
]}

机构：

[1] N CAROLINA STATE UNIV,DEPT BOT,BOX 7612,RALEIGH,NC 27695

来源：

JOURNAL OF CHEMICAL ECOLOGY | 1993年 / 19卷 / 11期

关键词：

DIMBOA; MBOA; DIM2BOA; M2BOA; 2-AMINO-7-METHOXY-3H-PHENOXAZIN-3-ONE; 2-AMINO-4,6,7-TRIMETHOXY-3H-PHENOXAZIN-3-ONE; CORN; WHEAT; SOIL MICROBIAL TRANSFORMATION; PHYTOTOXICITY;

D O I：

10.1007/BF00980682

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：

The defensive cyclic hydroxamates 7-methoxy-2,4-dihydroxy-1,4(2H)-benzoxazin-3-one (DIMBOA) and 7,8-dimethoxy-2,4-dihydroxy-1,4(2H)-benzoxazin-3-one (DIM2BOA) of wheat and com are transformed in nonsterile soil, via 6-methoxy-2(3H)-benzoxazolone (MBOA) and 6,7-di-methoxy-2(3H)-benzoxazolone (M2BOA) respectively, into 2-amino-7-meth-oxy-3H-phenoxazin-3-one and 2-amino-4,6,7-trimethoxy-3H-phenoxazin-3-one. The soil transformation is similar of that undergone by the rye metabolite 2(3H)-benzoxazolone (BOA) into 2-amino-3H-phenoxazin-3-one. The transformations to phenoxazinones are not observed in sterile soil. The 2-amino-3H-phenoxazin-3-one inhibits barnyard grass radicle elongation, but the methoxylated aminophenoxazinones are not significantly inhibitory.

引用

页码：2453 / 2461

页数：9

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