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Gonimoblast

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Type of cell produced by red algae upon the fertilization of a zygotic nucleus

Liagora magniinvolucra Fig. 9. shows an early stage in gonimoblast development showing the already extensive development of the involucre

A gonimoblast is a type of cell produced by red algae upon the fertilization of a zygotic nucleus, and involved in the formation of carpospores. The cells subsequently divide and ultimately serve as storage or generative cells. Storage cells contain starch and are multinucleate; whereas generative cells are situated further from the auxiliary cell, are uninucleate, and form the terminal lobes in the ensuing carpospores. Gonimoblasts are connected by septal pores, usually blocked by septal plugs.

References

  1. Kugrens, P.; Delivopoulos, S. G. (1986). "Ultrastructure of the Carposporophyte and Carposporogenesis in the Parasitic Red Alga Plocamiocolax pulvinata Setch, (Gigartinales, Plocamiaceae)". Journal of Phycology. 22 (1): 8. doi:10.1111/j.1529-8817.1986.tb02509.x. S2CID 85787751.
  2. Delivopoulos, S. (2003). "Ultrastructure of auxiliary and gonimoblast cells during carposporophyte development in the red alga Cryptopleura ruprechtiana (Delesseriaceae, Ceramiales, Rhodophyta)". Biology of the Cell. 95 (6): 383–392. doi:10.1016/S0248-4900(03)00085-6. PMID 14519555.


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