植物寄生性線蟲對茄科植物青枯病發病程度之影響
Other Title
The effect of plant-parasitic nematode on severity of bacterial wilt in solanaceous plants
Journal
植物病理學會刊
Journal Volume
6
Journal Issue
4
Pages
141-152
Date Issued
1997-12
Date
1997-12
Author(s)
顏志恒
陳殿義
許秀惠
林俊義
蔡東纂
Yen, J. H.
Chen, D. Y,
Hseu, S. H.
Lin, C. Y.
Tsay, T. T.
Abstract
由臺灣中部地區十二處罹患青枯病之茄科植物栽培田中，探討罹病植株受茄科植物青枯病菌與植物寄生性線虫複合感染為害之情形，其結果顯示，共九處栽培田有青枯病菌與植物寄生性線虫共同感染之現象。由該九處栽培田內罹患青枯病之茄科植物根圈土壤中，分離之植物寄生性線虫，以南方根瘤線蟲(Meloidogyne incognita)及北方根腐線蟲(Pratylenchus penetrans)為主。對青枯病具不同抗感程度之蕃茄品種或菸草品種，若先接種線虫(南方根瘤線蟲或北方根腐線蟲)後再接種青枯病菌、先接種青枯病菌後再接種線虫、及線虫和青枯病菌同時接種等三種線虫和細菌複合感染處理，其青枯病發病程度皆比單獨接種細菌處理者為高，顯示植物寄生性線虫與病原細菌複合感染茄科植物時，確有加重病害感染及降低抗病品種抗病性之趨勢。
The distribution of the complex disease between bacterial wilt of solanaceous plants and plant-parasitic nematodes in central Taiwan have been investigated. The result of investigation appeared the existence of plant parasitic nematodes in nine locations of bacterial wilt-infected area, including root-knot nematode (Meloidogyne incognita) and lesion nematode (Pratylenchus penetrans). The effect of plant-parasitic nematodes on severity of bacterial wilt in solanaceous plants also have been conducted. The data showed that disease rating of bacterial wilt in three treatments (includes: 1. inoculated with root-knot nematode or lesion nematode and one month later with the bacteria; 2. inoculated with the bacteria and two weeks later with the nematodes: 3. inoculated with nematode and bacteria simultaneously) was higher than inoculated with bacteria only. This conclusion showed that the complex disease between plant-parasitic nematodes and Ralstonia solanacearum could increased disease severity and reduced the resistance of bacterial wilt-resistant solanaceous plants.
Subjects
青枯病
茄科植物
植物寄生性線蟲
複合感染
bacterial wilt
plant parasitic nematode
complex infection
Publisher
中華民國植物病理學會
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