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Representative images with toluidine blue O (TBO) (Upper panels) and carmine-iodine green staining (Lower panels), illustrating differences between pod valves from MG38 (shattering; left) and MIDAS (non-shattering; right) in terms of the degree of lignification of the inner layer of the sclerenchymatic cells of the pod wall. VS, ventral sheath; LFL, lignified fiber layer; NLFL, non-lignified fiber layer.
