臺灣農藥科學第四期電子書

臺灣長豇豆花器葉化菌質體 59 圖一 、菌質體感染長豇豆所引起花器葉化、葉片叢生及葉片黃化且明顯變小病徵。 Fig. 1. A Vigna sesquipedalisa plant infected by phytoplasma in Yunlin county. Systemic symp- toms included leaf yellowing, witches’-broom, proliferation of small leaves, and phyllody. 圖二 、長豇豆罹病株篩管內聚集多形態菌質體菌體 ( 箭頭 ) 之電顯圖。 Fig. 2. Micrograph of pleomorphic phytoplasma cells (red arrow) found in the sieve tubes of vascular tissue from infected Vigna sesquipedalisa plants.