These are dissolved or suspended in the latex sap of the plant or housed in specific organelles such as stems, leaves ... sometimes with pustules on the fingers or even the entire hand.

Antirrhinum rust is another major threat, with dark brown pustules forming on the undersides of leaves and yellow marks appearing on the top. This rust can cause leaves to drop prematurely.

BACKGROUND: Palmoplantar pustulosis (PPP) is a distinct, chronic skin disorder characterized by intraepidermal pustules on the palms and soles. It is hypothesized that microorganisms on the skin ...