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-pollen tube-

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ลองค้นหาคำในรูปแบบอื่นๆ เพื่อให้ได้ผลลัพธ์มากขึ้นหรือน้อยลง: pollen tube, *pollen tube*
อังกฤษ-ไทย: ศัพท์บัญญัติราชบัณฑิตยสถาน [เชื่อมโยงจาก แบบอัตโนมัติและผ่านการปรับแก้]
pollen tubeหลอดเรณู [พฤกษศาสตร์ ๑๘ ก.พ. ๒๕๔๕]

อังกฤษ-ไทย: คลังศัพท์ไทย โดย สวทช.
pollen tubeหลอดละอองเรณู, หลอดที่งอกยื่นออกจากละอองเรณูไปตามคอเกสรตัวเมียเข้าไปยังรังไข่  เพื่อนำสเปิร์มนิวเคลียสเข้าไปผสมกับไข่ในออวุลได้ [พจนานุกรมศัพท์ สสวท.]

Result from Foreign Dictionaries (3 entries found)

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Spermatophyta \Sper`ma*toph"y*ta\, n. pl. [NL.; spermato- + Gr.
     ? plant.] (Bot.)
     A phylum embracing the highest plants, or those that produce
     seeds; the seed plants, or flowering plants. They form the
     most numerous group, including over 120,000 species. In
     general, the group is characterized by the marked development
     of the sporophyte, with great differentiation of its parts
     (root, stem, leaves, flowers, etc.); by the extreme reduction
     of the gametophyte; and by the development of seeds. All the
     Spermatophyta are heterosporous; fertilization of the egg
     cell is either through a
     {pollen tube} emitted by the microspore or (in a few
        gymnosperms) by spermatozoids.
     Note: The phrase "flowering plants" is less distinctive than
           "seed plants," since the conifers, grasses, sedges,
           oaks, etc., do not produce flowers in the popular
           sense. For this reason the terms {Anthrophyta},
           {Phaenogamia}, and {Panerogamia} have been superseded
           as names of the phylum by Spermatophyta.
           [Webster 1913 Suppl.]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Pollen \Pol"len\, n. [L. pollen fine flour, fine dust; cf. Gr.
     1. Fine bran or flour. [Obs.] --Bailey.
        [1913 Webster]
     2. (Bot.) The fecundating dustlike cells of the anthers of
        flowers. See {Flower}, and Illust. of {Filament}.
        [1913 Webster]
     {Pollen grain} (Bot.), a particle or call of pollen.
     {Pollen mass}, a pollinium. --Gray.
     {Pollen sac}, a compartment of an anther containing pollen,
        -- usually there are four in each anther.
     {Pollen tube}, a slender tube which issues from the pollen
        grain on its contact with the stigma, which it penetrates,
        thus conveying, it is supposed, the fecundating matter of
        the grain to the ovule.
        [1913 Webster]

From WordNet (r) 3.0 (2006) [wn]:

  pollen tube
      n 1: (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

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