IRENOLONE AND EMENOLONE - 2 NEW TYPES OF PHYTOALEXIN FROM MUSA-PARADISIACA

被引：82

作者：

LUIS, JG ^{[1
]}

ECHEVERRI, F ^{[1
]}

QUINONES, W ^{[1
]}

BRITO, I ^{[1
]}

LOPEZ, M ^{[1
]}

TORRES, F ^{[1
]}

CARDONA, G ^{[1
]}

AGUIAR, Z ^{[1
]}

PELAEZ, C ^{[1
]}

ROJAS, M ^{[1
]}

机构：

[1] UNIV ANTIOQUIA,DEPT QUIM,MEDELLIN,COLOMBIA

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1993年 / 58卷 / 16期

关键词：

D O I：

10.1021/jo00068a027

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Phenalenone-type phytoalexins were obtained for the first time from bananas and identified by COSY H-1-H-1, HMQC and HMBC techniques, and X-ray analysis, among other methods. The aminoglycoside kanamycin was studied as a phytoalexin inducer in banana leaves and fruit and compared with the effects produced by the fungus Mycosphaerella fidjiensis. The phenyl side chain in banana phytoalexins is not in the same position as in other plant phenalenones and so an alternative biogenetic pathway has been proposed and is currently being verified. The specific response evoked by kanamycin opens the way to the study of the host-plant relationship from a new angle since more phytoalexin inducers can be designed on the basis of the chemical constituents of the microorganisms involved or on synthetic kanamycin analogues and used to improve the plants' defense mechanisms.

引用

页码：4306 / 4308

页数：3

共 11 条

[1] STRUCTURE AND FUNCTION OF COMPLEX CARBOHYDRATES ACTIVE IN REGULATING PLANT-MICROBE INTERACTIONS [J].