In some plants, such as poppy, magnolia, tulip, and petunia, each flower is relatively large and showy and is produced singly, while in other plants, such as aster, snapdragon, and lilac, the individual flowers may be very small and are borne in a distinctive cluster known as an ...
The meaning of POLLEN TUBE is a tube that is formed by a pollen grain and conveys the sperm nuclei to the embryo sac of an angiosperm or the archegonium of a gymnosperm.
Pollen tube introduction method for flowerThe invention discloses a kind of screening method for barley re-cadmium-poison genotype, comprises selecting seed, disinfecting, culturing seedling, transplanting, pre-culturing, cadmium coerion treatment, re-cadmium-poison evaluation; cadmium treat 20 days, ...
which grows down through the pistil toward one of the ovules in its base. In an act ofdouble fertilization, one of the two sperm cells within the pollen tube fuses with the egg cell of the ovule, making possible thedevelopmentof anembryo, and the other cell combines with the two subsidiar...
After landing on the stigma of a flower, a pollen grain germinates and rapidly grows a pollen tube through the style to deliver sperm to the ovule. The rapid polarized growth of the pollen tube involves functional coordination across multiple organelles and makes pollen the fastest-growing plant...
Where is a pollen tube? A pollen tube is a special structure that grows within the style from the pollen grain to the ovary of a flower. This structure is only found in angiosperms, or flowering plants. What is the function of the pollen tube? The main function of the pollen tube is ...
1 | CsALC expression pattern in reproductive organs and defective female fertility of Csalc mutants by CRISPR-Cas9. a–c Schematic diagram of pollen tube guidance during the process of fertilization in flowering plants. a Schematic dia- gram of a flower showing the pollen tube penetrates through...
Early flower development in Arabidopsis The early development of the flower of Arabidopsis thaliana is described from initiation until the opening of the bud. The morphogenesis, growth rate, and ... David R. Smyth,John L. Bowman and Elliot M. Meyerowitz - 《Plant Cell》 被引量: 3504发表: ...
one of the pouches of a seed plant anther in which pollen is formed pollen tubenoun a tube that is formed by a pollen grain as it grows down the style and that carries the sperm nuclei to the embryo sac of a flower pollen tube 例句 1.The pollen tube was used as a model system ...
Cresti M, Tiezzi A (1990) Germination and pollen tube formation. In: Microspore: evolution and ontogeny. S Blackmore, RB Knox (eds), Academic Press London New York pp.239–255 Cresti M, Van Went JL (1976) Callose deposition and plug formation in Petunia pollen tube in situ. Planta 133...