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Parthenogenesis, apogamy and apospory in Alaria crassifolia (Laminariales) (1973)

Nakahara, H. ; Nakamura, Y.

Springer

Marine biology 18 (1973), S. 327-332

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ISSN: 1432-1793

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract In cultures of Alaria crassifolia Kjellman, unfertilized eggs developed normally into haploid sporophytes which differentiated into a holdfast, stipe and blade with a midrib. The terminal cells of a male gametophyte grew apogamously into haploid sporophytes with narrow blades which lack the midrib. Further, diploid gametophytes were formed by apospory from vegetative cells of a diploid sporophyte. They were monoecious and their fertilized eggs developed into tetraploid sporophytes. Nuclear phases of the sporophytes and gametophytes concerned were confirmed by cytological observations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00347797

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