Pollen Tube In A Sentence

Learn how to use Pollen Tube in a sentence and make better sentences with word `Pollen Tube` by reading from 36 Pollen Tube sentence examples.

• (After Hirase.) p, Pollen-tube (proximal end).
• In the pollen tube of buckwheat, the function of coated vesicles which contain the precursor of pollen tube wall is to form pollen tube besides decomposing lipid bodies and amyloplast .
• Pollen tube crawled (twisted) at the stigmatic surface.
• Inhibition of UPP will induce apoptosis of pollen tube.
• In angiosperms, only a pollen tube enters the micropyle.
• The pollen-tube or tubes pass down the canal (fig.
• A serologic reaction retards the growth of the pollen tube.
• During germination, the tube cell elongates into a pollen tube.
• Sperm cells which occurred in pairs were released from pollen tube.
• Pollen tube growth can he inhibited or lack in polarity in the incompatible style.
• It may grow a pollen tube and undergoing mitosis to produce two sperm nuclei.
• From here, a pollen tube seeks out the female gametophyte and if successful, fertilization occurs.
• Pollen tube entered the embryo sac via one synergid and in it released two sperms.
• In the grasses the pollen tube is blocked at the stigma surface with pectins and callose.
• In the process of fertilization the two male generative nuclei, accompanied by the pollen-tube nucleus and that of the stalk-cell, pass through an open pit at the apex of the pollen-tube into the prot
• The latter ultimately divides in the apex of the pollen-tube into two non-motile generative cells.
• A pollen tube is produced, which grows into the nucellus to provide nutrients for the developing sperm cells.
• Pollen tube When a pollen grain lands on the stigma of a flower, it is stimulated to produce a pollen tube When a pollen grain lands on the stigma of a flower, it is stimulated to produce a pollen tub
• The process of pollen tube growth involves many aspects, especially the synthesis of cell wall and the cytoplasmic movements.
• The presence of multiple grains of pollen has been observed to stimulate quicker pollen tube growth in some plants.
• In oaks, early fertilized ovules prevent the fertilization of other ovules by inhibiting the pollen tube entry into the embryo sac.
• The pollen-tube, containing two generative and one vegetative nucleus, pierces the wall of the megaspore and then becomes swollen (fig.
• Since the transgenic technology of pollen tube pathway method was formally established, it has been widely used in crop genetic improvement.
• Gametosomatic fusion of pummelo with sweet orange led to the regeneration of triploid embryos. Pollen-tube growth was observed during the culture.
• The vegetative cell then produces the pollen tube, a tubular protrusion from the pollen grain, which carries the sperm cells within its cytoplasm.
• In seed plants it is the generative cell in the pollen grain, which divides in the pollen tube to produce two sperm cells.
• It has been suggested that the pollen expression of pectate lyase genes might relate to a requirement for pectin degradation during pollen tube growth.
• Sperm cells of Pinophyta and Gnetophyta are without flagella, and are carried by the pollen tube, while those of Cycadophyta and Ginkgophyta have many flagella.
• The main donors to the pathway were the genes associated with the arbuscular mycorrhiza symbiosis genes, the pollen tube formation genes and the haemoglobin genes.
• The growth process of pollen tubes and the formation date of pollen tube pathway of upland cotton were observed by using paraffin methods under microscope.
• Croon compatibility wan very high between onion and Japanese bunching onion as well an pollen tube growth which was not affected by each other after crooning.
• Activation involves the development of actin filaments throughout the cytoplasm of the cell, which eventually become concentrated at the point from which the pollen tube will emerge.
• Incompatible pollen tubes grow more slowly and, at least in some, the pollen tube bursts before it reaches the ovule and the polysaccharide callose is deposited around the tube.
• When a pollen grain adheres to the stigma of a carpel it germinates, developing a pollen tube that grows through the tissues of the style, entering the ovule through the micropyle.
• The pollen tube growth is similar to the infection thread development in that infection threads grow in a polar manner that is similar to a pollen tubes polar growth towards the ovules.
• In Casuarina, Juglans and the order Corylaceae, the pollen-tube does not enter by means of the micropyle, but passing down the ovary wall and through the placenta, enters at the chalazal end of the ov