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Histopathological effect of Cry64Ba/Cry64Ca in the midgut of L. striatellus. (A) Midgut tissue section of control group L. striatellus fed on pure artificial diet (96 h) is shown. Midguts from L. striatellus fed on 5.0 μg/ml Cry64Ba/Cry64Ca for 48 h (B), 72 h (C), and 96 h (D) are shown. L, lumen; MV, microvillus; EC, gut epithelial cell; MM, microvillus matrix.
