Abstract
"Witches' Broom" is a major disease of cacao, limiting cacao production in South America. The basidiomycete Moniliophthora perniciosa, the causal agent, presents a hemibiotrophic lifestyle with a peculiar, extensive biotrophic phase, promoting typical symptoms of hypertrophic growth and proliferation of infected shoots. The tomato (Solanum lycopersicum) cv. 'Micro-Tom' (MT) is a suitable …