Abstract
Sk2 protein is the most abundant member of the pistil-specific proteins of Solanum tuberosum. Sk2 protein has been localized by use of a polyclonal antibody (anti-Sk2) in the pistils of four clones of Solanum tuberosum. In the stigmas Sk2 protein accumulates to a high level in the cytoplasm of the internal secretory cells underlying the papillae one day prior to anthesis. In styles, the intercellular matrix of the transmitting tissue cells is intensely labelled by anti-Sk2. Sk2 protein is present in all four clones and shows the same labelling pattern. The possible role of the Sk2 protein in pollen tube growth is discussed.
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Li, Y.Q., Faleri, C., Thompson, R.D. et al. Cytochemical immunolocalization of the abundant pistil protein Sk2 in potato (Solanum tuberosum). Sexual Plant Reprod 7, 164–168 (1994). https://doi.org/10.1007/BF00228489
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DOI: https://doi.org/10.1007/BF00228489