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Detection of Pratylenchus penetrans gene transcripts by in situ hybridization that encode different proteases. (A) Fatty acid amide hydrolase. (B) Trypsin inhibitor‐like. (C) Serine protease. (D) Cathepsin L‐like cysteine protease. (E) Cathepsin L. (F) Papain family cysteine protease. ep, excretory pore; ed, excretory duct; int., intestine; m, medium bulb; s, stylet. Bars, 20 µm.
