Plant Latex Proteins And Their Functions

In this review we have collected information regarding latex proteins and their contribution to latex-borne defense among a variety of latex-bearing plants. We comprehensively describe the functions and properties of different pathogenesis- and defenserelated proteins found in plant latex, including peroxidases, lipoxygenases, polyphenol oxidases, major latex proteins, b-1,3-glucanases, chitinases, osmotins, proteases, and others. The last section describes proteomic changes occurring during plant-virus interactions in latex-bearing papaya infected with Papaya meleira virus as an example.