甜椒細菌性莖腐病之病原鑑定、偵測與藥劑篩選

"Identification, Detection, and Bacteriocide Screening of Bacterial Stem Rot of Sweet Pepper"

甜椒（Capsic um annuum L . ）屬於茄科（Solanaceae）番椒屬（Capsicum），為番椒的一種。番椒包括甜椒與辣椒，不具辛辣味為甜椒（sweet pepper），具辛辣味者則稱為辣椒（hot pepper）。番椒在台灣總栽培面積達2290千公頃，主要產地依栽培面積多寡依序為南投、屏東、嘉義、雲林、高雄、臺南、花蓮等7縣。

"Stem rot disease of sweet pepper was found in Nantou and Yunlin counties in 2010. Water-soaked, longitudinal, and brown lesions were observed on the surface of stem, and the pith showed necrotic and disintegrated symptoms. Bacteria isolated from the infected tissues were verified to cause stem rot of sweet pepper in pathogenicity test. The pathogen was further identified as Pectobacterium carotovorum subsp. carotovorum (Pcc) based on physiological and chemical tests, Biolog identification, and 16S-23S rDNA intergenic spacer region sequences. Polymerase chain reaction using the primer pair Ec3F/Ec4R was developed for rapid diagnosis of Pcc. The 497-bp DNA fragment corresponding to Pcc can be amplified from the mechanically inoculated sweet pepper plants. The bactericide oxolinic acid has the most efficiency to inhibit Pcc growth."