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  • Open Access


    VvAGAMOUS Affect Development of Four Different Grape Species Ovary

    Pengfei Zhang1,#, Yuqin Zhang1,#, Qifeng Zhao2, Tiequan Niu1, Pengfei Wen1,*, Jinjun Liang1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.4, pp. 1125-1138, 2023, DOI:10.32604/phyton.2023.026227

    Abstract Grape pistil has an important influence on fruit size and quality. However, there were few studies on grape ovary, and the development process of the ovary is still unclear. Therefore, in this paper, four different grape varieties with different lengths of small inflorescences, namely ‘Musct Hambourg’ grape (Vitis vinifera), ‘Concord’ grape (Vitis labrusca), ‘ShanPuTao’ grape (Vitis amurensis) and ‘GongNiang2Hao’ grape (Vitis amurensis × Vitis vinifera) were used as test materials. Four varieties ovary were significant differences by means of stereomicroscope, paraffin section. The expression of ovary determining gene VvAGAMOUS (VvAG) and its development related genes VvCRABS CLAW (VvCRC) and VvAGAMOUS-LIKE 11 … More >

  • Open Access


    Structure of the stigma and style in sunflower (Helianthus annuus L.)


    BIOCELL, Vol.34, No.3, pp. 133-138, 2010, DOI:10.32604/biocell.2010.34.133

    Abstract This is the first report of the ultrastructure of the stigma and style during and after anthesis in Helianthus annuus L. using light and transmission electron microscopy. The stigma is bifid with unicellular papillae. There is no secretion of lipids, carbohydrates or proteins at anthesis. The style is semisolid in the upper portion, closer to the stigma, and becomes solid below. Ultrastructural changes on cells of the stigma and the style are described. The transmitting tissue of the ovule is first evident 40 minutes after pollination and persists during the first stages of embryogenesis. Only one pollen tube per micropyle… More >

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