患灰霉病仙客来植株的解剖观察

Anatomical observation of cyclamen with Botrytis cinerea

仙客来灰霉病是温室中常见病害,已经成为影响仙客来花卉生产的重要真菌病害。研究利用石蜡切片技术结合番红-固绿染色方法对患病仙客来植株进行解剖学观察。结果表明,病原菌的侵染部位是器官的表皮,侵染方式主要是菌丝直接进入表皮细胞。在叶片、叶柄和花梗中病原菌多以分生孢子的形式存在,而在花瓣中除了含有大量分生孢子外,还有较多的菌丝。在植株体内,病原菌主要以分生孢子的形式进行传播。

Cyclamen Botrytis cinerea is a common disease in greenhouse.In recent years,the fungus disease has affected the production of cyclamen seriously.By using paraffin sections technology and safranine-fast green dyeing,organs of cyclamen plant with Botrytis cinerea were studied.The results showed that pathogens infected organs of cyclamen through epidermis.The way of infextation was that mycelium went into epidermal cell directly.In the leaves,petioles and pedicels,pathogens were mostly spores;in the flowers,there were more mycelium and lots of spores.Pathogens spread out through spores in the plant.