Search results
Stigmas have been studied extensively in plants that exhibit self-incompatibility, a process that restricts inbreeding. Self-incompatible stigmas reject self-pollen by inhibiting pollen hydration, germination, and tube invasion; these processes have been reviewed recently (Nasrallahs 2000; Silva and Goring, 2001;
12 maj 2006 · A novel stigma-specific class III peroxidase gene, SSP (stigma-specific peroxidase) expressed exclusively in the stigmas of Senecio squalidus L. (Asteraceae) has recently been identified. Expression of SSP is confined to the specialized secretory cells (papillae) that compose the stigma epidermis.
1 sty 2003 · The aim of this work is to characterize the development of stigma receptivity, from anthesis to stigma degeneration, in the pentacarpellar pear (Pyrus communis) flower. Stigma development and stigmatic receptivity were monitored over two consecutive years, as the capacity of the stigmas to offer support for pollen germination and pollen tube ...
4 wrz 2021 · Angiosperms are characterized by a great diversity of morphologies, function, and postures of stigmas in their flowers (Endress et al. 1983; Endress 1996). This great diversity has long attracted scientists’ attention for its implication in plant reproduction (Edlund et al. 2004).
9 maj 2020 · The process of plant reproduction is responsible for much of our food supply, with fertility and seed set critical for crop yield and thus food security. The first stage of male–female recognition in flowering plants takes place when pollen lands on the surface of the stigma.
28 maj 2018 · Stigma receptivity is a key prerequisite for successful pollination and seed set in flowering plants. From a plant breeder’s perspective, extending the length of time that the stigma can support...
