F.E. The Classification of the Algae. Algae of uncertain position (i) Chloromonadales (ii) Cryptophyceae . Algae have been divided into groups based mainly on distinctive plastid accessory pigments. Fritsch (1935, 1945) in his book “The Structure and Reproduction of the Algae” proposed a system of classification of algae. Most are microscopic. If a genus is not displayed or the genus is unknown, select the appropriate “Classification” and select “Other” or unknown in the “Genus”. They vary from single-celled flagellates to simple colonial and filamentous forms. Example Definitions Formulaes. e) Example: Spirogyra, Ulothrix. It grows naturally and is inexpensive. They are the food base of ecosystems called kelp forests (see Figure below). Differentiate between: 1. He treated algae giving rank of division and divided it into 11 classes. Automated recognition and classification system for algae will be one of the several tools to be developed for monitoring algae diversity of and hence, water quality changes, the lake. Ø The classification of algae by Fritsch is primarily based of the pigmentation in algae. Design of a Small Scale Algae Cultivation System to . Ø Different groups of algae have different pigment composition. Algae can be found in aquaculture supplying oxygen and acting as a natural food base for such cultured animals as dinoflagellates that cause the red tides Divisions of Algae o Green algae - May be unicellular or multicellular Have cellulose cell walls, contain chlorophyll a and b, and store starch like plants. Methods. Fritsch’s Classification of Algae: F.E. CLASSIFICATION OF PLANTS CLASS: VII SUBJECT: BIOLOGY ===== III. classification of algae was given by F.E Fritsch (1935) in his book ‘The Structure and Reproduction of the Algae’. Classification of Algae Algae are eukaryotes macro or micro photosynthetic organisms that can be found substantially in every natural or artificial water environments, where solar or artificial light is present [5]. Algal Research is an international phycology journal covering all areas of emerging technologies in algae biology, biomass production, cultivation, harvesting, extraction, bioproducts, biorefinery, engineering, and econometrics. The advantage of using algae is that it is an available source. 1. Algae type Cyanobacteria All other classifications. Certain types of macroalgae can be used for biofuel production. According to these morphological and physiological differences they are classified by many people. These characteristics include the photosynthetic pigments, nature of photosynthetic reserve materials, the composition of cell wall or absence of cell wall, cellular and thallus morphology and reproductive behaviour. Study site and data. They are the main component of phytoplankton.As such, they contribute to the food base of most marine ecosystems.. Multicellular seaweeds called kelp may grow as large as trees. Engineering Design II Proposal - Design of a Small Scale Algae Cultivation System to Produce Biodiesel Executive Summary . Xanthophyceae or yellow—green algae e.g. Advanced knowledge of Classification of Algae . Classification • 20+ classes of green algae have been described since Linnaeus •Many criteria have been used to establish classes – Morphlhology – Ultrastructure • + mitosis, cell division, cytokinesis, flagellar apparatus –Life history patterns – Molecular 2 •Primarily rRNA genes, rbcL Produce Biodiesel . Algae and fungi Ans: Algae Fungi a) Chlorophyll present. The term algae (or seaweeds) is a practical term to use in everyday language, even if it has lost all clear meaning in the new phylogenetic classification of living organisms! Classification of Algae . Identification of Algae in Water Supplies Section I Continue George Izaguirre The algae are a large and very diverse group of organisms that rangefrom minute single-celled forms to the giant marine kelps. Fritsch (1935) classified the whole of the algae into eleven classes on the basis of type of pigments, nature of reserve food material, mode of reproduction etc. 15 min. Algae and their classification PDF. Fritsch’s classification: F.E.Fritsch (1935, 1945) proposed a most comprehensive and anthroritative classification in his book “structure and reproduction of algae” . absent According akinetes algae algal anisogamy antheridia apical arranged Asexual attached axis basal bearing becomes blue-green algae body Bold and Wynne branches brown called cell wall central Chapman Chlamydomonas Chlorophyceae chloroplast chromatophores Class classification colony common conjugation consists contains culture cytoplasm develop diatoms diploid divides division … (PDF) Freshwater Algae of North America: Ecology and ... Wehr and Sheath, in the first edition of Freshwater Algae of North America, covered the algae of a large continent with many climate zones, producing a large tome (Wehr & Sheath 2003). Diatoms are much more common than golden-brown algae and consist of many types of plankton found in the ocean. Customize assignments and download PDF’s. In this article we will discuss about the Fritsch’s and Smith’s classification of algae. Ø Algae also shows great diversity in pigmentation. Ecology of Algae. Blue-Green Algae: The “A” that shouldn’t be in “Harmful Algal Bloom” Prokaryotes • Only organisms within all types of algae that are prokaryotes • Bacteria • Conduct photosynthesis • Primary producers • Produce oxygen Blue-Green Algae = Cyanobacteria Not an “A” at All Snowella species. Most live in fresh water, but some are found in marine and soil habitats. Because of these pigments, many groups of algae have been known by their color: hence red, green, brown, etc. Quick summary with Stories. Make now. d) Body not differentiate into root, stem and leaves and is known as a thallus. Their photosynthetic pigments are more varied than those of plants, and their cells have features not found among plants … Chlamydomonas, Volvox, Oedogonium, Spirogyra, Vaucheria, Chara, etc. Algae, singular alga, members of a group of predominantly aquatic photosynthetic organisms of the kingdom Protista.Algae have many types of life cycles, and they range in size from microscopic Micromonas species to giant kelps that reach 60 metres (200 feet) in length. Phycology for third stage by Lecturer Sajad Alabdallh 1 Classification of Algal بكاحطكا فْوصت Blue green algae ) Cyanophyta( ةقرزمكا ءارضخكا بكاحطكا مسق مزٚںوتْاسكا ّف ةرشتوم ةڻوووكا ةدامكا ،ةڻقڻقح ةاوو دوجو مدع ،ةاووكا ةڻئادب Fritsch’s Classification: The algae have broadly been divided by F. F. Fritsch in 1935 into eleven classes according to their colour: i. Chlorophyceae or green algae, e.g. Both are found in fresh and salt water environments. He considered that as a group algae deserve the rank of division. 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