31 research outputs found
Cercosporin quantification in Cercospora coffeicola isolates by spectrophotometry and high performance liquid chromatography: a comparative analysis
info:eu-repo/semantics/publishedVersio
Cercosporin production by Cercospora coffeicola isolates: spectrophotometry and HPLC quantification and image analysis
Cercosporin has excellent properties of photosensitization that have been widely used in organophotocatalyst and photodynamic
therapy as well as an antimicrobial agent. Therefore, there is a need to quantify it accurately with accessible methods.
A comparative analysis of cercosporin quantification obtained by spectrophotometry (SPEC) and high-performance liquid
chromatography (HPLC) was performed for nineteen Cercospora coffeicola isolates from different coffee-producing municipalities
in Brazil. Image analysis of cercosporin crystals was performed in isolates with either high or low production of
the toxin. Our results show that SPEC and HPLC are equally valid for the cercosporin evaluation of C. coffeicola cultures
grown in vitro. The isolates with high cercosporin production had a higher crystal number and size when compared to the
one with low cercosporin productioninfo:eu-repo/semantics/publishedVersio
Efeito do tratamento de sementes com fungicidas e acibenzolar-S-methyl no controle da ferrugem asiática e crescimento de plântulas em cultivares de soja
Efeito de óleos essenciais como alternativa no controle de Colletotrichum gloeosporioides, em pimenta
Atividades de quitinase e beta-1,3-glucanase após eliciação das defesas do tomateiro contra a mancha-bacteriana
Óleo essencial de alecrim no controle de doenças e na indução de resistência em videira
Vascular wilt of cocoa (Theobroma cacao L.) caused by Verticillium dahliae kleb Studies on pathogenicity and resistance
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