題名: Occurrence of bacterial leaf spot of betel palm caused by Burkholderia andropogonis and inhibition of bacterial by agrochemicals.
作者: Hseu, S. H.;Lai, W. C.;Pan, Y. P.;Lin C. Y.
貢獻者: Department of Biotechnology
關鍵詞: betel palm, bacterial leaf spot, agrochemical screening 日期: 2007
上傳時間: 2010-03-15T08:10:23Z 出版者: Asia University
摘要: In 2006, a leaf spot disease was found on betel palm in several locations in Taiwan. The infected leaves showed irregular brown necrotic spots surrounded by yellowish halo. A gram-negative, rodshaped bacterium was consistently isolated from the diseased tissues. The bacterium was identified as Burkholderia andropogonis based on its physiological characteristics, the Biolog GN MicroPlate system, the MIS system for cellular fatty acid analysis, polymerase chain reaction (PCR) with a pair of primers specific for B. andropogonis, 16S rDNA sequence and
pathogenicity tests. In vitro screening for the efficacy of different agrochemicals to inhibit bacterial growth on PDA plates showed that all tested chemicals, including copper bactericides, antibiotics, oxolinic acid, and carbamates, were effective. Among them, tetracycline was most effective.
