Pollen tube the pollen tube responds to extracellular guidance signals to achieve fertilization. Pollen tubes are produced by the male gametophytes of seed plants. They act as conduits to transport the male gamete cells from the pollen grain—either from the stigma (in flowering plants) to the ovules at the base of the pistil or directly through ovule tissue in some gymnosperms. Pollen tubes were first discovered by Giovanni Battista Amici. Pollen tube formation is important for sexual reproduction to occur in seed plants. Plants have separate structures such as microsporocytes and megasporocytes and the pollen grains are transported to the female gametophyte
The Decay of Fiction of nude men and women, stop-motion animated mannequin torsos, flickering film projections and dim light bulbs to create what devolves in a sense of nightmares, giving a result that feels more like an art installation than the expected film. When displayed in museum exhibitions, the interactive DVD installation is called "Tracing the Decay of Fiction". The presentation is shown in a continuous loop and allows museum patrons to explore the narrative and create their own stories. "The Decay of Fiction" had its festival premiere screening on October 12, 2002, at the New York Film Festival. Subsequent festival screenings include: The