Characterization of a vascular wilt of Erythroxylum coca caused by Fusarium oxysporum f. sp. erythroxyli forma specialis nova

被引：24

作者：

Sands, DC ^{[1
]}

Ford, EJ ^{[1
]}

Miller, RV ^{[1
]}

Sally, BK ^{[1
]}

McCarthy, MK ^{[1
]}

Anderson, TW ^{[1
]}

Weaver, MB ^{[1
]}

Morgan, CT ^{[1
]}

Pilgeram, AL ^{[1
]}

Darlington, LC ^{[1
]}

机构：

[1] USDA ARS,BIOCONTROL PLANT DIS LAB,BELTSVILLE,MD 20705

来源：

PLANT DISEASE | 1997年 / 81卷 / 05期

关键词：

DNA; mycoherbicide; RAPD;

D O I：

10.1094/PDIS.1997.81.5.501

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A new forma specialis of Fusarium oxysporum (F. oxysporum f. sp. erythroxyli) pathogenic to Erythroxylum coca and E. novogranatense is described. The pathogen was isolated from the vascular tissue of diseased plants from an Erythroxylum plantation in Hawaii. This pathogen causes vascular wilt symptoms and death in both E. coca and E. novogranatense plants as soon as 7 weeks after soil infestation. The pathogenicity of seven isolates from the affected field was determined in field and growth-chamber studies. Genetic variation was not detected among the seven Hawaiian isolates, using arbitrarily primed polymerase chain reaction. The seven isolates could be differentiated from a strain isolated from a diseased E. coca plant from South America. All Hawaiian isolates and the South American isolate belonged to a single vegetative compatibility group.

引用

页码：501 / 504

页数：4

共 16 条

[1]

Barnett HL, 1987, ILLUSTRATED GENERA I

[2]

BRAYFORD D, 1993, WORKSH MAN INT MYC I, P1

[3]

Burgess LW., 1981, Fusarium: diseases, biology, and taxonomy, P225

[4] NITRATE NON-UTILIZING MUTANTS OF FUSARIUM-OXYSPORUM AND THEIR USE IN VEGETATIVE COMPATIBILITY TESTS [J].