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Master's Dissertation
DOI
https://doi.org/10.11606/D.11.1986.tde-20220207-182123
Document
Author
Full name
Antonio Carlos Maringoni
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 1986
Supervisor
Title in Portuguese
Caracterização de Xanthomonas campestris pv. vesicatoria (Doidge) dye de pimentão (Capsicum annuum L.) e de tomateiro (Lycopersicon esculentum Mill.) através de patogenicidade, sorologia, hidrólise de amido e sensibilidade a drogas
Keywords in Portuguese
XANTHOMONAS CAMPESTRIS
BACTÉRIAS FITOPATOGÊNICAS
CARACTERIZAÇÃO
MANCHA BACTERIANA
PATOGENICIDADE
PIMENTÃO
SEROLOGIA
TOMATE
Abstract in Portuguese
Doze isolados de X. campestris pv. vesicatoria, seis provenientes de pimentão e seis de tomateiro, foram estudados quanto ao comportamento patogênico, sorológico, hidrólise de amido e sensibilidade a drogas in vitro. Com base na sintomatologia apresentada pelas plantas de pimentão cv. Cascadura Ikeda, linhagem 23-1-7 BK e de tomateiro cv. UC-134, inoculadas através de pulverização e injeção separadamente, pode-se distinguir os isolados de pimentão dos de tomateiro conforme a reação de suscetibilidade das plantas inoculadas. Isolados de tomateiro foram sorologicamente diferentes dos de pimentão, além de hidrolisarem o amido e serem mais sensíveis, in vitro, à mistura dos fungicidas hidróxido de cobre ou oxicloreto de cobre com maneb ou mancozeb ou zineb e óxido cuproso com zineb, que os isolados de pimentão. Não foi observada sensibilidade colateral e nem resistência cruzada nos isolados sensíveis ou não ao sulfato de estreptomicina em relação aos antibióticos e fungicidas ensaiados.
Title in English
Characterization of Xanthomonas campestris pv. vesicatoria (Doidge) dye from (Capsicum annuum L.) and tomato (Lycopersicon esculentum Mill.) by pathogenicity, serology, starch hydrolysis and drug sensibility
Abstract in English
Twelve isolates of X. campestris pv. vesicatoria six from pepper and six from tomato, were compared with respect to pathogenicity, serology, starch hidrolysis and drug sensibility. Isolates of pepper were pathogenically diferente from those of tomato on pepper (cv. Cascadura Ikeda and line 23-1-7 BK) and on tomato (cv. UC-134), by both leaf spray and leaf infiltration method of inoculation. Pepper isolates were serologically distinct from those of tomato. All isolates of tomato hydrolysed starch, while those of pepper could not do so. Also, all isolates of tomato were more sensible than those of pepper to copper-tiocarbamate fungicide mixtures (copper hydroxide or copper oxychloride plus maneb or mancozebor zineb and copper oxide plus zineb).
 
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Publishing Date
2022-02-07
 
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