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A commercial anti-calmodulin monoclonal antibody (CaM MAb) was used to determine the presence and localization of calmodulin (CaM) and calmodulin-like protein in unpollinated and pollinated styles of Petunia hybrida. In the unpollinated style , CaM was localized in the cytoplasm of transmitting tract cells. The response to pollination and/or pollen tube growth was the presence of bound CaM-like protein...
Calmodulin distribution was studied in the maturing male fertile and male sterile anther of Allium cepa L., using commercial monoclonal anti-CaM antibodies. The main sites of its occurrence were the tapetum and the generative cell lines. During microsporogenesis, calmodulin localization in the anthers of both onion lines was similar. Anti-CaM was localized in dividing microsporocytes, and low levels...
The aim of the present study was to find the source of postpollination increase in calcium content in the transmitting tract in the style of Petunia hybrida Hort. Cytochemical and radiographic studies revealed a progressive increase in the level of free and loosely bound calcium ions in the course of successive developmental stages of the pollen tubes in the pistil. A surprising phenomenon was the...
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