Primary Leaves of Cowpea

(Vigna unguiculata 'California Blackeye') inoculated with cowpea mosaic virus (CPMV) containing the GFP-gene inserted between the movement protein (MP) and the capsid proteins (CPs) in the viral RNA 2. The GFP is expressed in abundance as a free protein (so NOT fused to either MP or CP) and can be localized in the cytoplasm and nucleus of infected epidermal and mesophyll cells.

Courtesy to Dr. Joan Wellink, Dept. Biomolecular Sciences, Lab. of Molecular Biology and Dr. Jan van Lent, Dept. of Plant Plant Sciences, Lab. of Virology, Wageningen Agricultural University, The Netherlands.