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Development of structure-less pollen wall inCeratophyllum demersum L. (Ceratophyllaceae) (1995)

Takahashi, Masamichi

Springer

Journal of plant research 108 (1995), S. 205-208

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ISSN: 1618-0860

Keywords: Ceratophyllaceae ; Ceratophyllum ; Development ; Pollen

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract Developmental process of structure-less exine is studied in a hydrophilous plant,Ceratophyllum demersum L., with electron microscopy. The plant shows a characteristic feature in tetrad formation. A callose wall is not synthesized and exine initiation does not occur during the tetrad stage. After release of microspores, a trilaminar layer with two electron-dense lines is formed in the surface of each microspore. The trilaminar layer develops to a thin structure-less exine that is considered to consist of only an endexine. The unusual exine would be an adaptive feature for submersed pollination in fresh water.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02344345

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