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Reproductive and storage tissues of many plants produce large amounts of serine proteinase inhibitors (PIs). The ornamental tobacco, Nicotiana alata, produces a series of 6 kDa chymotrypsin and trypsin inhibitors that accumulate to up to 30% of soluble protein in the stigma. These inhibitors are derived by proteolytic processing of two closely related multidomain precursor proteins. Using immunogold...
Abstract. Diatoms are unicellular microalgae encased in a siliceous cell wall, or frustule. Pennate diatoms, which possess bilateral symmetry, attach to the substratum at a slit in the frustule called the raphe. These diatoms not only adhere, but glide across surfaces whilst maintaining their attachment, secreting a sticky mucilage that forms a trail behind the gliding cells. We have raised monoclonal...
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