PHYTOTOXIC EFFECTS OF FUMONISIN B-1 ON MAIZE SEEDLING GROWTH

被引：32

作者：

DOEHLERT, DC

KNUTSON, CA

VESONDER, RF

机构：

[1] USDA ARS,NATL CTR AGR UTILIZAT RES,PHYTOPROD UNIT,PEORIA,IL 61604

[2] USDA ARS,NATL CTR AGR UTILIZAT RES,MYCOTOXIN RES UNIT,PEORIA,IL 61604

来源：

MYCOPATHOLOGIA | 1994年 / 127卷 / 02期

关键词：

AMYLASES; FUMONISIN; MAIZE; SEED GERMINATION;

D O I：

10.1007/BF01103067

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Fumonisin B-1 toxin is produced by the fungus Fusarium moniliforme Sheldon, which is systemic to maize (Zea mays L.) and maize seeds. The effects of zero to 100 parts per million fumonisin B-1 on the germination process of maize seeds was determined. The presence of fumonisin had no effect on percent seed germination, but fumonisin inhibited radicle elongation by up to 75% after 48 hours of imbibition. An analysis of amylase secretion in the maize endosperm indicated that fumonisins inhibited amylase production in the germinating seed. Isoelectric focusing of endosperm extracts indicated that secretion of the low pi class of amylases was affected more that other amylase isozymes. The results suggested that the presence of high levels of fumonisin in maize seed may have deleterious effects on seedling emergence.

引用

页码：117 / 121

页数：5