Loureiro A. auteur aut IRD Nicole Michel auteur aut IRD Varzea V. auteur aut IRD Moncada P. auteur aut IRD Bertrand B. auteur aut IRD Silva M.C. auteur aut IRD text journalArticle eng text/pdf born digital access Histological and ultrastructural studies were undertaken to compare Colletotrichum kahawae growth and the sequence of responses it induced in resistant and susceptible coffee genotypes. Coffee resistance was characterized by a restricted fungal growth associated with hypersensitive-like cell death and early accumulation of phenolic compounds, such as flavonoids (cytoplasmic contents) and hydroxycinnamic acid derivatives (cell walls). This accumulation of phenols in the cell walls preceded their lignification and thickening. In the susceptible genotype, a late accumulation of hydroxycinnamic acid derivatives in a number of cell walls and the encasement of some intracellular hyphae were also observed, but these delayed host responses did not prevent fungal growth and sporulation. specialized Coffea arabica Coffea canephora Coffee berry disease Ultrastructure Resistance Hypersensitive-like reaction Phenolic compounds AFRIQUE 076 77 1 23-32 2012 0885-5765 https://www.documentation.ird.fr/hor/fdi:010054419 10.1016/j.pmpp.2011.11.002 0885-5765 [F B010054419] https://www.documentation.ird.fr/hor/fdi:010054419 https://www.documentation.ird.fr/intranet/publi/2012/03/010054419.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2012-04-04 2017-08-23 fdi:010054419 fre