2=The presence of motile sperms in bryophytes supports algal ancestry. (1996) demonstrated that the acetolysis-resistant, autofluorescent cell wall compounds they found in charophycean green algae and bryophytes impart greater resistance to hydrolytic disruption of cell wall integrity than does lignin in conifer and angiosperm wood. Affinities of Bryophytes with Algae The origin of bryophytes from algae is supported from following facts: 1=There is a close resemblance between CHLOROPHYLLS and XANTHOPHYLLS of algae to that of bryophytes. Classification of the algae is based mainly on their reproduction and the type of chlorophyll, cell wall and storage products in the cells. While bryophytes have no truly vascularized tissue, they do have organs that are specialized for specific functions, analogous for example to the functions of … Algae are commonly found restricted to water and rarely found on the land whereas the bryophytes are land inhibited plants, but water is still required for completion of their life cycle. There is no fossil evidence of origin of Bryophytes from algae but Bryophytes resemble with algae in characters like-amphibious nature, presence of flagellated antherozoids and necessity of water for fertilization. 1 Plant embryogenesis relates to the dominance of a diplontic lifestyle. Land plants (embryophytes) are monophyletic and evolved approximately 470 million years ago from aquatic green algae (Plackett, Di Stilio, & Langdale, 2015).Extant charophytes comprise a sister group to the embryophytes and produce … The kingdom Plantae is one of the most widespread kingdoms with over 300,000 different species. Table of Contents CyanobacteriaGeneral Characteristics of CyanophytaHabitat Cell Structure Reserve Food Material Reproduction Economic Importance of Blue-green Algae Role in Nitrogen Fixation Role in Soil Building Harmful Aspects of Blue-green Algae Affinities of Cyanophyceae Affinities with Bacteria Affinities with Red Algae Cyanobacteria The name Cyanophyta (Gr. But present day Algae do not have a structure comparable to the Bryophytes. Affinities of Bryophytes. Algae: common name for a relatively simple type of eukaryotic plant which is never differentiated into root, stem and leaves; which contains chlorophyll a as the primary photosynthetic pigments; which has no true vascular system; and in which there is no sterile layer … Origin and evolution of bryophytes 1. Although many streptophyte algae primarily occupy aquatic habitats, several grow in subaerial habitats (Graham et al. Origin of the Gametophyte: The bryophytes are quite soft and delicate and, therefore, they lack fossil records. But present day Algae do not have a structure comparable to the Bryophytes. It is believed that bryophytes originated from Algae. The bryophyte is a group which has been placed in an amphibious position in the plant kingdom. Considerations on the Embryophyte Evolution. There is a large variety of unicellular photosynthetic algae and each group has undergone an independent evolution (Table 1). The bryophytes shows affinity towards the aquatic plants (Chlorophyta) and as well as towards the land plants (Pteridophytes ). Similarities between Algae and Bryophytes (1). The term algae was proposed by Linnaeus in 1753 but he had used this term for those organisms which we call Bryophytes now-a-days. The bryophytes and vascular plants also have embryonic development Embryophytes which is not seen in green algae.

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