WebKlekowski and Baker (1966) used previously published chromosome counts to show that within ferns and lycophytes, homosporous species had an average sporophytic count of 2 n = 115, whereas for heterosporous species it was 2 n = 27.24. In comparision, in angiosperms (all heterosporous) was 2 n = 31.98. The sporophyte produces spores (hence the name) by meiosis, a process also known as "reduction division" that reduces the number of chromosomes in each spore mother cell by half. The resulting meiospores develop into a gametophyte. Both the spores and the resulting gametophyte are haploid, meaning they … See more A sporophyte is the diploid multicellular stage in the life cycle of a plant or alga which produces asexual spores. This stage alternates with a multicellular haploid gametophyte phase. See more Bryophytes (mosses, liverworts and hornworts) have a dominant gametophyte phase on which the adult sporophyte is dependent for nutrition. The embryo sporophyte develops by cell division of the zygote within the female sex organ or archegonium, … See more Alternation of generations See more The sporophyte develops from the zygote produced when a haploid egg cell is fertilized by a haploid sperm and each sporophyte cell … See more During the Devonian period several plant groups independently evolved heterospory and subsequently the habit of endospory, in which the … See more • Kenrick P, Crane PR (September 1997). "The origin and early evolution of plants on land". Nature. 389 (6646): 33–39. Bibcode:1997Natur.389...33K. doi:10.1038/37918. S2CID 3866183. • Taylor TN, Kerp H, Hass H (April 2005). "Life history biology of early land plants: deciphering the gametophyte phase" See more
Sporophyte Definition and Examples Britannica
Web30 Jun 2016 · Spermatophyta Subphylum Angiospermae Class Dicotyledonae Order Asterales Family Asteraceae Genus Picris Species Helminthotheca echioides Notes on … Web26 Mar 2024 · The basic function of the sporophyte is to create spores – that much is known already. The spores, in turn, produce the gametophytes that give rise to the male and female gametes through the process of … download mp3 meme sounds
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Web21 Jun 2024 · 34 family and has a diploid sporophytic count (2n = 26) [1]. It is known to be a long-lived 35 deciduous species related to the 755 fig species widespread worldwide [2]. The Peepal tree is 36 a cosmopolitan species, having value for cultural and spiritual practices in Buddhism, 37 Hinduism, and Jainism. Web( ˈspɔːrəʊˌfaɪt; ˈspɒ-) n (Botany) the diploid form of plants that have alternation of generations. It develops from a zygote and produces asexual spores. Compare … WebThe stems are 4-lined or 4-angled when the plant is young but later become 2-lined, and sometimes become terete. The leaves are thick and paper-like and are rather glaucous, … classic car hire malta