Arthur L. Karr

Polysaccharide-degrading Enzymes are Unable to Attack Plant Cell Walls without Prior Action by a "Wall-modifying Enzyme".

P. Albersheim, A. Karr, P. Albersheim, 1970, Plant physiology.

Isolation and Partial Characterization of Four Host-specific Toxins of Helminthosporium maydis (Race T).

G. Strobel, D. Karr, A. Karr, 1974, Plant physiology.