Influence of cultural and environmental conditions on conidial production, conidial germination and infectivity of Rhynchosporium alismatis, a candidate mycoherbicide

被引：14
|
作者：
Jahromi, FG
Ash, GJ
Cother, EJ
机构：
[1] Charles Sturt Univ, Sch Agr, Farrer Ctr, Wagga Wagga, NSW 2678, Australia
[2] NSW Agr, Ctr Agr Res & Vet, Orange, NSW 2800, Australia
来源：
AUSTRALASIAN PLANT PATHOLOGY | 1998年 / 27卷 / 03期
关键词：
artificial culture; bensulfuron-methyl; biological weed control; inundative inoculation; leaf disc bioassay; Spermosporina alismatis;
D O I：
10.1071/AP98020
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Rhynchosporium alismatis is a potential mycoherbicide for suppression of Damasonium minus in rice fields. The effects of cultural and environmental conditions on sporulation, conidial germination, germ-tube elongation and conidial infectivity were investigated. R alismatis sporulated on a range of solid media and those based on lima bean produced the largest numbers of viable and infective conidia. The fungus also sporulated abundantly in liquid media. Light had no significant effect on conidial production. Sporulation, germination and germ-tube elongation were greatest at 25 degrees C and 30 degrees C. Lesion development on leaf tissues of D. minus was enhanced at 25 degrees C but reduced at temperatures greater than or equal to 30 degrees C.
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页码：180 / 185
页数：6
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