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TRANSITION. “Meiosis marks the transition to the gametophytic phase, and fusion of the gametes during fertilization starts the embryonic phase of the next generation.” https://lnkd.in/gkwnBWu View in LinkedIn

DEVELOPMENT OPTIONS. “Upon transition to the postembryonic state the organism either immediately possesses the principal pubertal morphological characteristics (direct development) or essentially differs from the pubertal form, in which case the larva that hatches out of the egg must undergo a metamorphosis before it reaches its adult state.” http://encyclopedia2.thefreedictionary.com/Postembryonic+Development View in LinkedIn

CONTINUOUS ORGANS. “Vegetative organ systems differentiate continuously from root and shoot meristematic regions that are formed initially during embryogenesis.” http://www.jstor.org/stable/pdf/2885440.pdf?seq=1#page_scan_tab_contents View in LinkedIn

INDEPENDENT EXISTENCE. “Postembryonic development begins after the emergence of the embryo from the egg and embryonic membranes, when the organism becomes capable of active feeding and locomotion.” http://encyclopedia2.thefreedictionary.com/Postembryonic+Development View in LinkedIn

MORPHOGENESIS. “Most morphogenic events in flowering plants occur in the postembryonic sporophyte after seed germination.” http://www.jstor.org/stable/pdf/2885440.pdf?seq=1#page_scan_tab_contents View in LinkedIn

DIPLOID SPOROPHYTE. “By contrast, the diploid, or sporophytic, generation begins after fertilization with the zygote and forms the mature plant with vegetative organs (leaf, stem, root) and flowers that contain the reproductive organs (anther and pistil).” http://www.jstor.org/stable/pdf/2885440.pdf?seq=1#page_scan_tab_contents View in LinkedIn

HAPLOID GAMETOPHYTE. “The haploid, or gametophytic generation, begins after meiosis with spores that undergo mitosis and differentiate into either a pollen grain (male gametophyte) or an embryo sac (female gametophyte). The male and female gametophytes are derived from specialized spore-forming cells within the reproductive organs of the flower.” http://www.jstor.org/stable/pdf/2885440.pdf?seq=1#page_scan_tab_contents View in LinkedIn

ALTERNATION OF GENERATIONS. “The flowering plant life cycle is divided into haploid and diploid generations that are dependent on each other.” https://lnkd.in/g_k-4-g View in LinkedIn

TWO PHASES. “Most differentiation events in higher plants occur continuously in the postembryonic phase of the life cycle. Embryogenesis in plants, therefore, is concerned primarily with establishing the basic shoot-root body pattern of the plant and accumulating food reserves that will be used by the germinating seedling after a period of embryonic dormancy within the seed.” https://lnkd.in/g_k-4-g View in LinkedIn

CONSERVED. “Regardless of the appearance of the adult plant, the shoot meristem is organized essentially the same way in different plant species.” http://ac.els-cdn.com/0092867495900659/1-s2.0-0092867495900659-main.pdf?_tid=4d4ebb00-9318-11e7-86e1-00000aacb362&acdnat=1504712004_432302d5e397300b77a7d0a78440aca5 View in LinkedIn