This type of life cycle is found in majority of Chlorophyceae like Chlamydomonas, Ulothrix, Oedogonium, Spirogyra, Chara etc. This includes the life cycles of many protozoa, all fungi, and some algae types. Introduction The haplodiplontic life cycle of the multicellular green alga Ulva mutabilis (F^yn, 1959) is shown schematically in Fig. l. Gametes develop into sporophytes, either by fusion or parthenogenetically. Addition of either NO 3-N or PO 4-P stimulated growth, optimum levels being 0.6 g/m 3 for both nutrients. This is a small genus of marine and brackish water green algae. Order Laminariales of Laminariaceae: This order contains the largest and most elaborately organized plant body of all algae. A haploid life cycle is found in most fungi and in some green algae … and all members of Xanthophyceae. Since individual haploid (n) cells are formed by mitosis, this life cycle is referred to as haplontic life cycle. The members of this order, better known as kelps, are predominant plants of cold water. The gametes unite and develop into adult plants. In this article we will discuss about the life cycle of laminaria, explained with the help of suitable diagrams. Used as medicine and source of vitamins E, A, and B1 (Ref. Complete the generalized alternation of generations diagram below using the following terms: gametophyte, zygote, mitosis, sporophyte, spores, and meiosis. After fertilization a zygote is formed: this cell is the only diploid cell in the entire life cycle. Sex organs produce gametes by meiosis. Ulva Life Cycle: (sporic meiosis)-Haploid and Diploid forms alternate-Sporophyte > haploid zoospores via meiosis > zoospores become haploid gametophytes > produce gametes > gametes release into ocean to fuse > become diploid zygotes > zygotes grow into sporophyte. are a group of multicellular green algae that exhibit an alternation of generation life cycle as found in land plants. 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