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AFLP analysis of Xanthomonas axonopodis and X. arboricola strains used in xanthan production studies reveal high levels of polymorphism BJM
Mayer,Laurí; Silva,Wladimir Padilha da; Moura,Andrea Bittencourt; Vendruscolo,Claire Tondo.
Amplified fragment length polymorphism (AFLP) was used to analyze the genetic diversity of 14 strains of Xanthomonas arboricola pv. pruni and seven strains of X. axonopodis pv. phaseoli, which are used in xanthan production studies. Relationships identified by the AFLP profiles were assessed for xanthan production capacity, geographical location and host plant. Strains were isolated from 10 different geographic regions in South and Southeast States in Brazil. Data were analyzed for genetic similarity using the Dice coefficient and subjected to UPGMA cluster analysis. A total of 128 AFLP fragments were generated from four primer combinations: EcoRI+C/MseI+0, EcoRI+A/MseI+0, EcoRI+G/MseI+T and EcoRI+G/MseI+A. Of these, 96.1% were polymorphic. X. axonopodis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: DNA fingerprints; Genomic diversity; Pathovar phaseoli; Pathovar pruni.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300026
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Chemical and biological treatments of castor bean seeds: effects on germination, emergence and associated microorganisms Rev. bras. sementes
Marroni,Igor Villela; Moura,Andrea Bittencourt; Ueno,Bernardo.
The effect of chemical and biological treatments on castor bean emergence, seedling vigor, dry matter production, and also the control of microorganisms associated with seeds of the AL Guarany 2002 and Lyra cultivars, was evaluated. The products tested were carbendazim + thiram, carboxin + thiram and a product based on Trichoderma. Total seed and seedling emergence were evaluated at 27 days after sowing whereas dry matter production was verified for plants removed 45 days after sowing. The Guarany 2002 AL cultivar had a higher incidence of microorganisms than the Lyra cultivar. The chemical treatment was 100% effective in controlling fungi but the biological treatment did not reduce microorganism incidence on the seeds. Chemical treatment resulted in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ricinus communis; Blotter test; Fungicides; Trichoderma.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000100003
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Foliar spraying with bacterial biocontrol agents for the control of common bacterial blight of bean PAB
Sangiogo,Maurício; Rodriguez,Daniela Pimentel; Moccellin,Renata; Bermudez,Johan Manuel Murcia; Corrêa,Bianca Obes; Moura,Andrea Bittencourt.
Abstract: The objective of this work was to evaluate the effect of foliar spraying with bacterial biocontrol agents (BBAs) on the control of common bacterial blight (CBB) of bean, and on the induction of systemic resistance in bean plants. CBB control by BBAs was evaluated by spraying bean leaves 48 and 24 hours before and after pathogen inoculation (BPI and API, respectively), with: DFs93, Bacillus cereus; DFs513, Pseudomonas veronii; DFs769, B. cereus; the C01 combination, DFs93 + DFs769 + DFs831 (Pseudomonas fluorescens); the C03 combination, DFs348 (Bacillus sp.) + DFs769 + DFs831; and water (control). Systemic effects were analyzed after spraying DFs513, DFs769, C03, and water 72 and 48 hours BPI. Phaseolin production induced by DFs348, DFs513,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris; Xanthomonas axonopodis pv. phaseoli; Biological control; Induced systemic resistance (ISR); Methods of application; Phylloplane.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001001101
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