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DNA polymorphism and variation in virulence of Xanthomonas axonopodis pv. manihotis (Xam), the causal agent of cassava bacterial blight, were studied within a pathogen population from Venezuela. Collections were made in several fields at different sites within an edaphoclimatic zone where cassava...
The existence of endophytes in cassava was suspected for the following reasons: (a) A wide range variation of root yield is frequent among disease-symptomless plants growing on the same plot; (b) root yield of low-yielding, virus-free plants of traditional clones can be increased by meristem cult...
Recent investigations on cassava and its relationships with Pseudomonas fluorescens and P. putida have shown (a) Isolates with none or very mild inhibition of pathogenic bacteria and fungi; (b) isolates that strongly inhibit pathogenic bacteria, with none or very mild inhibition of fungi; (c) iso...
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