摘要
采用筛选自植物体的内生菌株XG32(Pseudomonas fluorescens biovar Ⅳ)、DLJ1和DP24的菌液,进行浸泡辣椒种子、浇灌辣椒幼苗和防治辣椒疫病Phytophthora capsici Leonian的试验。结果表明:浸种接种仅表现促进初生苗的根伸长;而在菌液中培养接种时对根长和下胚轴的伸长均有作用,在以浇灌方式处理辣椒幼苗时处理组鲜重和株高均比对照组高30%以上;接种内生细菌对辣椒疫病有较好的防治效果;单独接种疫霉毒素发现,3株内生细菌在一定程度上能抑制疫霉毒素对辣椒的毒害作用。
Three endophytic bacterium strains XG32 （ Pseudomonas fluorescens biovar Ⅳ ） , DIAl and DP24 obtained from plants were tested. Three tests, such as soaking capsicum seeds, irrigating capsicum seedlings and controlling pepper Phytophthora blight, were adopted. The results indicated that root and hypocotyl length can be promoted when the seeds were irrigating with the three strains. Plant height and fresh weight were boosted 30% than control when capsicum seedlings were irrigated. Effect of disease control was increased when seedlings were inoculated. Moreover, these strains can also reduce harmful effects of toxin of Phytophthora capsici on plants in certain extent.
出处
《植物保护学报》
CAS
CSCD
北大核心
2008年第1期28-32,共5页
Journal of Plant Protection
基金
江苏省自然科学基金(BK2007222)资助
关键词
ACC脱氨酶
内生细菌
促生作用
防病作用
ACC deaminase
endophytic bacteria
promoting growth
disease control
