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(1) Inhibition of UPP will induce apoptosis of pollen tube.

(2) Pollen tube crawled (twisted) at the stigmatic surface.

(3) The pollen tube is the polarized tip-growing system that involves a complicated kinetic process essential for sexual reproduction in higher plants.

(4) 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.

(5) The process of pollen tube growth involves many aspects, especially the synthesis of cell wall and the cytoplasmic movements.

(6) The results showed that pollen germination rate, pollen tube bursting rate and net pollen germination rate had difference in the various culture mediums.

(7) Pollen tube entered the embryo sac via one synergid and in it released two sperms.

(8) 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.

(9) 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 .

(10) In the grasses the pollen tube is blocked at the stigma surface with pectins and callose.

(11) A serologic reaction retards the growth of the pollen tube.

(12) The tube nucleus disintegrates as the pollen tube penetrates the nucellus .

(13) EGTA treatments inhibited both pollen tube growth and GN division.

(14) In the newly formed pollen tube, the coated vesicles mainly come from the pollen grain.

(15) Pollen tube growth can he inhibited or lack in polarity in the incompatible style.

(16) Since the transgenic technology of pollen tube pathway method was formally established, it has been widely used in crop genetic improvement.

(17) Enhanced vesicle trafficking is also essential for pollen tube elongation as many molecules must be translocated to the growing tip.

(18) In the grasses (and possibly some members of the nightshade family, Solanaceae) the germinating pollen tube is blocked before it penetrates the stigma or just as it starts.

(19) Generative cell One of the haploid cells in the POLLEN TUBE of seed plants.

(20) The damage of the cytoskeleton system in the pollen and the pollen tube of Pinus thunbergii induced by ion beam implantation were researched.

(21) In seed plants it is the generative cell in the pollen grain(sentencedict .com), which divides in the pollen tube to produce two sperm cells.

(22) Porogamy The usual method of fertilization in angiosperms in which the pollen tube enters the ovule by the micropyle. Compare chalazogamy.

(23) 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.

(24) Self-pollen tube growth could be promoted by treating stigma with CTX, but the pollen tube growth was inhibited by treating stigma with PTX before cross pollination.

(25) In gametophytic SI, glycoproteins with ribonuclease activity are produced by the S gene, perhaps disabling RNA at the pollen tube tip.

(26) Using the vector pNPR1, On this basis, using the pollen tube pathway, after PCR and disease resistance detect, we gain some verticillium resistant cotton lines.

(27) The results indicated that the chitinase had certain inhibition effect on Fusarium oxysporum, and the method of pollen tube pathway could be successfuly used in watermelon transformation.

(28) Sperm cells which occurred in pairs were released from pollen tube.

(29) Cortical microtubules and spiny vesicles appear in the cytoplasm after germination of the pollen tube.