translate English to French: By 6 h following initial hydration of conidia, appressoria were melanized and the surrounding extracellular material had condensed onto their surfaces, forming an electron-dense coating that appeared to stick appressoria to dialysis membranes.
Environ 6 h suivront l'hydratation initiale des conidies, les appressoriats sont mélanisés et le matériel extracellulaire qui les enveloppe s'est condensé sur leur surface, formant une enveloppe dense aux électrons, laquelle semble faire coller les appressoria aux membranes de dialyse.