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• n  (botany) a slender tubular outgrowth from a pollen grain when deposited on the stigma for a flower; it penetrates the style and conveys the male gametes to the ovule

News & Articles

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• Flowers: Pistil leads pollen in life-and-death dance
  Pollination, essential to much of life on earth, requires the explosive death of the male pollen tube in the female ovule. In new research, scientists describe the genetic and regulatory factors that compel the male's role in the process. Finding a way to tweak that performance could expand crop cross-breeding possibilities.
  June 20, 2013 - Science Daily
• Pistil leads pollen in life-and-death dance
  Pollination, essential to much of life on earth, requires the explosive death of the male pollen tube in the female ovule. In new research, Brown University scientists describe the genetic and regulatory factors that compel the male's role in the process. Finding a way to tweak that performance could expand crop cross-breeding possibilities.
  June 20, 2013 - EurekAlert!