Control efficacy of validamycin A against Fusarium wilt correlated with the severity of phytotoxic necrosis formed on tomato tissues

被引：13

作者：

Ishikawa, Ryo

Shirouzu, Kentaro

Nakashita, Hideo

Teraoka, Tohru

Arie, Tsutomu

机构：

[1] Sumitomo Chem Co Ltd, Agr Res Labs, Takarazuka, Hyogo 6650051, Japan

[2] Tokyo Univ Agr & Technol, Plant Pathol Lab, Fuchu, Tokyo 1838509, Japan

[3] RIKEN, Inst Phys & Chem Res, Discovery Res Inst, Environm Mol Biol Lab, Wako, Saitama 3510198, Japan

来源：

JOURNAL OF PESTICIDE SCIENCE | 2007年 / 32卷 / 02期

关键词：

plant activator; tomato cultivars; Fusarium oxysporum f. sp lycopersici; salicylic acid; disease severity; phytotoxicity;

D O I：

10.1584/jpestics.G06-37

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Employing 20 race 2-susceptible tomato cultivars, the effect of validamycin A (VMA) treatment on the disease severity (DS) of Fusarium wilt (race 2), salicylic acid (SA) concentration, and plant injury index (PT) was examined. Statistical analysis of the obtained results suggested a negative correlation between the amount of SA and DS without VMA treatment, and between PT and DS with VMA treatment. PT with VMA treatment was positively correlated with the amount of SA with/without VMA treatment. Moreover, the possibility of the rapid screening of plant activators using phytotoxicity as a marker of plant-activator-sensitive cultivars was suggested. The intensity of enhanced systemic acquired resistance (SAR) may depend on the genetic background of each cultivar and its quantity of SAR gene expression. (C) Pesticide Science Society of Japan.

引用

页码：83 / 88

页数：6

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