摘要
对田间采集的稻曲病病粒进行解剖分析,结果显示厚垣孢子层未形成的稻曲病病粒可分离出完整雌雄蕊;典型的稻曲球均可解剖出完整子房,且子房绿色未见明显膨大。雄性不育的水稻品系受稻曲病为害产生典型症状,其解剖结果与正常水稻品系相同。由此推测稻曲菌侵染水稻雌蕊发生在水稻开花之前,并直接从子房获得营养形成稻曲球。
According to the pathological anatomical observation to the grains infected by Ustilaginoidea virens from the field, there were the integrated floral organ including stamen and pistil, which were isolated from the infected grains without forming yellow chlamydospore. The integrated ovaries, which were green and not obviously enlarged because of grain filling, were isolated from the typical infected grains with lots of yellow chlamydospore. Some malesterile rice lines were infected by this fungus and resulted in the typical symptoms. It was proposed that the fungus Ustilaginoidea virens infected the pistil before the flowering and absorbed nutrition from the ovary to develop the smut ball.
出处
《浙江农业学报》
CSCD
北大核心
2010年第2期207-210,共4页
Acta Agriculturae Zhejiangensis
关键词
稻曲病
稻曲球
侵染时期
侵染部位
rice false smut（ Ustilaginoidea virens）
rice false smut ball
infect period
infect position
