Xanthomonas campestris pv. armoraciae引起之練根細菌性葉斑病

許秀惠; 宋嘉仁; 陳美德; 高瑞隆; 郭克忠; Hseu, S.H.; Sung, C.J.; Chen, M.T.; Gao, R. L.; Kuo, K.C.; 許秀惠;宋嘉仁;陳美德;高瑞隆;郭克忠; Hseu, S.H.;Sung, C.J.;Chen, M.T.;Gao, R. L.;Kuo, K.C.

Xanthomonas campestris pv. armoraciae引起之練根細菌性葉斑病

Other Title

Occurrence and identification of bacterial leaf spot of horseradish

Journal

植物病理學會刊

Journal Volume

18

Journal Issue

3

Pages

145-154

Date Issued

2009-09

Date

2009-09

Author(s)

許秀惠

宋嘉仁

陳美德

高瑞隆

郭克忠

Hseu, S.H.

Sung, C.J.

Chen, M.T.

Gao, R. L.

Kuo, K.C.

URI

https://scholars.tari.gov.tw/handle/123456789/8482

Abstract

民國96~97年間，於嘉義縣太保市及六腳鄉等二處隔離試種栽培之辣根植株上發現初期葉片出現淡褐色或褐色的不規則型斑點，病斑擴大呈淡褐色，隨後病斑癒合且組織變薄，偶有破裂的現象，嚴重時整個葉片呈淡褐色或褐色乾枯，若發生於葉脈時，則呈現條狀褐色壞疽，病勢擴展並蔓延，最後轉為黑褐色壞疽，嚴重時可擴展綱葉片中肋，葉柄，造成壞疽死亡，罹病嚴重時根部外觀完好，但剖開後輸導組織出現黑色壞疽。該病原經柯霍氏法則確認為細菌，由生理生化、Biolog及脂肪酸鑑定分析結果顯示引起辣根的病原菌屬於Xanthomonas campestris ( Xc )再由碳源利用及165 rDNA定序鑑定分析結果顯示木病原菌為Xanthomonas campestris pv. armoraciae ( Xca )，接種結果顯示該病原主要危害十字花科作物，確認該病害為Xca引起之辣根細菌性葉斑病(bacterial leaf spot of horseradish)。該病原細菌被列為檢疫病原，因此二處隔離試種田已銷毀，並淹水處裡。室內測試10種商品化藥劑，以鏈四環黴素之效果最佳，其效果依序為鏈四環黴素、歐索林酸、鏈黴素、多保鏈黴素、嘉賜銅、氫氧化銅、鹼性氯氧化銅、三元硫酸銅、鋅錳乃浦及嘉賜黴素。 An unknown leaf spot was occurred on horseradish in two experimental trails in Jiayi between 2007-2009. When diseased, the horseradish shows irregular brown flecks on the abaxial surface of the leaves and later these individual lesions coalesce to develop black streaks along veins. Dry, dead tissue may fall off from the lesion giving the leaves a shot hole or tattered appearance. The systemic development of the disease can cause internal necrosis in roots with black streaks on the root surface. The causal agent was identified as Xanthomonas campestris pv. armoraciae based on molecular and physiological evidence. Due to the pathogen is recognized as quarantine pathogen, the produce of these two cultivation trails were totally destroyed and the fields were set fallow. Among ten pesticides screened in vitro, antibiotics and oxolinic acid showd better efficacy.

Subjects

辣根

細菌性葉斑病

Xanthomonas campestris pv. Armoraciae

室內藥劑篩選

horseradish

bacterial leaf spot of horseradish

Xanthomonas campestris pv. Armoraciae

agrochemical screening

Publisher

中華民國植物病理學會

Type

journal article

File(s)

Name

18-3-145-154.pdf

Size

819.41 KB

Format

Adobe PDF

Checksum

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