Polyspermy and fertilization of antipodals in Lilium (Tourn.) L. Species

Kravets, E. A.; Khvedynich, O. A.

doi:10.3103/s0095452708030043

Cited by 1 publication

(2 citation statements)

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“…In Amborella trichopoda, syngamy and triple fusion could be observed within 24 h [41], in Consolida arvensis, 3-12 h after pollination [53] that is possibly due to the large number of ovules in the ovary and their non-simultaneous maturation. In most Liliaceae, especially in Lilium species, the duration of pollination-fertilization is very long, for example, the progamous phase continues about three days and the phase of syngamia lasts about four days [54]. One of the reasons for the delay in the rate of fertilization may be heterochrony as a shift in the synchronous development of male and female gametes [55].…”

Section: Figurementioning

confidence: 99%

“…Interestingly, the antipodal cells in species of lily (Fritillariatype embryo sac) are characterized by a definite degree of affinity to egg apparatuses, e.g. a special type of specularity (symmetry) attracting an additional pollen tubes in chalazal compartment of embryo sac [54]. Multiple antipodal cells are common in Ranunculales, Papaverales, Rhamnales and Malpighiales [56,58,118,119].…”

Section: Antipodalsmentioning

confidence: 99%

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Evolutionary Patterns of the Internal Structures of Generative Organs in Angiosperm Plants

Kordyum¹,

Kravets²

2022

Plant Reproductive Ecology - Recent Advances

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Evolutionary patterns of the internal structures of generative organs in angiosperms are considered in light of the idea on their close dependence on the appearance of angiospermy – formation of the ovary closed cavity by carpels– macrosporophylls. A characteristic feature of the sexual process in gymno- and angiosperms is the independency of water for fertilization, unlike all lower plants and pteridophytes. The main direction of the further evolution of the sexual process consisted in the modification for adaptations that ensure the successful fertilization in new conditions. The guidelines and levels of evolution include aromorphosis, allomorphosis, specialization and reduction which are considered to be concrete examples of microstructure of generative organs.

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Section: Figurementioning

confidence: 99%