ecological importance of pteridophytes ppt

ecological importance of pteridophytes ppt

They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. Ecological importance: The liverworts, mosses and lichens are supposed to be the pioneers in establishing vegetation where other vegetation seems to be practically impossible. They are important economically because they provide wood and used it in making buildings, furniture and paper. See our Privacy Policy and User Agreement for details. The liverworts and mosses grow on soil, on damp sand, on rocks, and on the trunks and trunks of standing and prostrate trees. See our Privacy Policy and User Agreement for details. Even today, many tribal communities and rural populations are dependent heavily upon the natural resources obtained from the surrounding forest regions for treatment of various ailments and diseases. 1. Pteridophytes commonly known as Vascular Cryptogams, are the seedless vascular plants that evolved after bryophytes. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Gajendra C V The harvesting, processing, and sale of Sphagnum peat is a multimillion-dollar industry. Economic and Ecological Importance of Pteridophytes Psilotum – Whisk fern – Used in Green House Lycopodium obscurum – Christmas Green … Bryophyte - Bryophyte - Nutrition: Bryophytes generate their nutrient materials through the photosynthetic activity of the chlorophyll pigments in the chloroplasts. 1. See our User Agreement and Privacy Policy. The group pteridophyta, the 'wing plants', is a diverse bunch of related plants. There are around 13,000 species of Pteridophytes. ADVERTISEMENTS: In this article we will discuss about the classification of pteridophytes. Study of ecological adaptation (morphological & anatomical) of xerophytes and hydrophytes. Pteridophytes are also used as a medicine. Pteridophytes, also known as ‘vascular cryptogams’ and ‘ferns and fern allies’, comprise about 12 000 species of vascular plants that do not produce flowers or seeds, Fronds in the largest species of ferns can reach some six metres in length! The evolution of seeds, pollen, and wood freed plants from the need for water during reproduction, allowed for more effective dispersal of sperm, increased Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Classification Of Pteridophytes PPT If you continue browsing the site, you agree to the use of cookies on this website. Clipping is a handy way to collect important slides you want to go back to later. Determination of minimum size of the quadrants for the study of community by species area curve. There are also some purely aquatic ferns such as water fern or water velvet (Salvinia molesta) and mosquito ferns (Azolla species). Some of them are. If you continue browsing the site, you agree to the use of cookies on this website. 2 KEY CONCEPTS 1. Now customize the name of a clipboard to store your clips. Short classification of the ferns : Radosław Janusz Walkowiak. 22.4). Forest college and research institute, Mettupalayam. The different species of Selaginella are grown as the garden plants. 5. Ø They are known as ‘Vascular Cryptogams’ – cryptogams with vascular system. The body of the sporophyte is well differentiated into roots, stem and leaves. In addition, most bryophytes absorb water and dissolved minerals over the surface of the gametophore. Pteridophytes (i.e., ferns and lycophytes) are an important group of plants to study because many new species are still being discovered in the Neotropics and they play important ecological roles in many ecosystems [12–15]. They are important because many of trees grow in areas where the topsoil is frozen part of the year, making it hard for the roots to obtain water. The root system is always adventitious. In these structures, sperm cells are made in globular or club-shaped sacs called antheridia; eggs are produced singly in vase-shaped structures called archegonia (Fig. ABC of Pteridophytes. Clipping is a handy way to collect important slides you want to go back to later. Another important innovation of the bryophytes was the multicellular structures surrounding the gametes, called gametangia. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Ruhmora adiantiformis is called the florist’s fern; since their leaf resists wilting they … The important characteristics of Pteridophytes are summarized below: Ø The division Pteridophyta includes primitive living and fossil vascular plants. The term Pteridophyta was first coined by Haeckel. Title: 2. Determination of moisture content and porosity of different types of soil. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. 4. The prothallus is the pteridophyte gametophyte (the haploid … The pteridophytes present a great but poorly explored potential as ecological indicators (EIs), shown only in some sparse studies. Apart from this, there a few economically important bryophytes such as the peat moss. Gametangia protect gametes during development. Many ferns from tropical rain forests are epiphytes, which means they only grow on other plant species; their water comes from the damp air or from rainfall running down branches and tree trunks. Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. Looks like you’ve clipped this slide to already. As the first true land plants, they offer a very favourable material for the study of various adaptations that have made the colonization of land possible for the plants. They also grow in water (e.g., Ricciocarpos natans) and among other plants of fields and meadows, bogs, and marshes in temperate countries. In these climates, moss balls form and absorb water. Examples include ferns, h… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. See our User Agreement and Privacy Policy. Pteridophytes are the first true land plants: It is speculated that life began in the oceans, and through millions of years of evolution, life slowly adapted on to dry land. International Journal of Medicinal and Aromatic Plants 1 : 18 – 22 . Economic importance of the plants included in the syllabus. Pteridophytes do not have seeds or flowers either, instead they also reproduce via spores. And since conifers are almost trees, they create forests that provide habitat for wildlife. The different species of … Therefore, to analyze this potential, we reviewed published articles, websites, or books with pteridophytes as EIs, searching on … PGGC-11, Chandigarh. View and Download PowerPoint Presentations on Classification Of Pteridophytes PPT. They don’t have conducting tissues for transportation of water and minerals. It is harvested, processed and sold. Looks like you’ve clipped this slide to already. If you continue browsing the site, you agree to the use of cookies on this website. Instead, the water and minerals flow from the surface of the plant- cell to cell in the … 1. As bryophytes can survive on bare rock, they can initiate soil formation in any barren terrain of land. The Pteridophytes are an economically important group of plants. Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. In humid forests you can even find bryophytes growing on invertebrates. Dry fronds of many ferns are used as a cattle feed. Pteridophytes have a long geological history on our planet. Pteridophytes (ferns and lycophytes) are free-sporing vascular plants that have a life cycle with alternating, free-living gametophyte and sporophyte phases that are independent at maturity. few taxa have received rigorous ecological study. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. And among the first of the plants to truly live on land were the Pteridophytes. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. Some of them are Pteridophytes are used in the horticulture. Ø They were originated in the Silurian period and flourished in the Devonian period. Assistant Professor, The modern classification of pteridophytes have been suggested by many scientist according to the Sporne(1975) pteridophytes have been classified into six classes.They are Psilopsida, Psilotopsida, Lycopsida, Sphenopsida, Pteropsida and Progymnospermopsida. 3. These are called EPIPHYLLOUS BRYOPHYTES and you can find out more by clicking on that link. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. 6. Pteridophytes ) or ( lat. What is the prothallus of pteridophytes? Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Examples include ferns, horsetails and club-mosses. The pteridophytes present a great but poorly explored potential as ecological indicators (EIs), shown only in some sparse studies. Eichler (1883) divided the plant kingdom into Cryptogamia and Phanerogamia. ADVERTISEMENTS: Here are your notes on the ecology of bryophytes! You can change your ad preferences anytime. Lal , B , Vats , S , Singh , RD and Gupta , AK ( 1996 ) Plants used as ethnomedicine and supplementary foodby Gaddis of Himachalpradesh, India . words Pteron = feather and phyta = plants; means plants with feather like fronds or ferns) includes a group of primitive land plants with well developed vascular system • This group has been referred to as vascular cryptogams and classified by Carolus Linnaeus (1754) under the class Cryptogamia (Greek words kruptos = hidden and … Peat is used in horticulture, as an energy source (fuel), and, to a limited extent, in the extraction of organic products, in whiskey production, and as insulation. Botany Pteridophytes Class Notes for Students and Teachers of Life Science / Biological Science. Bryophyta and Pteridophyta. Pteridophytes: General Characteristics PPT by Easybiologyclass, Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), Trillion Dollar Coach Book (Bill Campbell). These are very common substrates throughout most of the world. Kumari, P (2011) Some ethno-medicinally important pteridophytes of India. PTERIDOPHYTES You can change your ad preferences anytime. ABSTRACT. Most people will have seen bryophytes growing on soil, rocks and tree trunks. They colonize the barren rocks and exposed areas of hills, and make them suitable for growing angiospermic and other […] 2. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Research scholar You can also find bryophytes on the leaves of vascular plants, especially in the tropics. Engler (1909) included the Bryophyta and Pteridophyta under Embryophyta. The peat moss genus Sphagnum is an economically important bryophyte. This is especially true in the tropical rainforest and in wetland climates, like boglands and swamps. If you continue browsing the site, you agree to the use of cookies on this website. Bryophytes are very important in initiating soil formation on barren terrain, in maintaining … They can maintain the soil moisture and also help in the recycling of the nutrients in forest vegetation. The Pteridophytes are an economically important group of plants. ( lat. No public clipboards found for this slide. Department of Botany, Therefore, to analyze this potential, we reviewed published articles, websites, or books with pteridophytes as EIs, searching on five scholar databases and also on Google. Would you like to get the full Thesis from Shodh ganga along with citation details? Pteridophytes constitute a significant and important group in the plant kingdom. economic and medicinal importance of pteridophytes Humans have been dependent upon the plants as an important source of medicine since ancient times. THE ECOLOGICAL AND ECONOMIC IMPORTANCE OF GYMNOSPERMS SUMMARY PLANTS, PEOPLE, AND THE ENVIRONMENT: The California Coast Redwood Forest . In certain ecosystems, these plants have a very important affect on the lives of the organisms surrounding them. Now customize the name of a clipboard to store your clips. That these taxa have thus far been reported mainly from dystrophic and mesotrophic waters may be the result of limited sampling effort or taxonomic confusion with morphologically similar forms. GENERAL CHARACTERS OF Classification of Pteridophytes. Besides being a lower plant, pteridophytes are economically very important. INTRODUCTION AND DEFINITION • The Pteridophytes (Gk. Pteridophytes PPT, MCQ on Pteridophytes The Cryptogamia was further divided into Thallophyta. Pteridophytes are used in the horticulture. 2. Leafy liverworts in the genera Lejeunea, Cololejeunea, Odontolejeunea and Microlejeunea; the thallose liverwo… They are seedless, vascular cryptogams: Pteridophytes are seedless, and they procreate through spores. […] Pteridophyta Author: osmon Last modified by: ONI Created Date: 1/7/2001 9:16:29 PM Document presentation format: On-screen Show (4:3) Company – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 5955a4-OGFjY Presented by : Sumita, Department of tree breeding ADVERTISEMENTS: Some of the economic importance of Bryophytes are as follows: 1. APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. Institute, Mettupalayam plants included in the Silurian period and flourished in the syllabus of! 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Of India to store your clips ( 1883 ) divided the plant kingdom into Cryptogamia and Phanerogamia we discuss... Way to collect important slides you want to go back to later plants! The organisms surrounding them is a handy way to collect important slides you want to go to! Group in the tropical rainforest and in wetland climates, moss balls and! Economic importance of the sporophyte is well differentiated into roots, stem and leaves provide! And flourished in the plant kingdom: pteridophytes are economically very important in initiating formation!, shown only in some sparse studies and used it in making buildings, furniture and paper and.... Presentations Magazine determination of moisture content and porosity of different types of soil and swamps soil! Audiences expect Janusz Walkowiak an economically important bryophytes such as the garden plants divided the plant kingdom first of quadrants. To collect important slides you want to go back to later terrain, in maintaining … ABSTRACT initiate soil in... Very common substrates throughout most of the plants to truly live on land were the pteridophytes an... Absorb water, PGGC-11, Chandigarh a few economically important group of.... Only in some sparse studies Cryptogamia and Phanerogamia can reach some six metres in length in initiating formation. Radosław Janusz Walkowiak the leaves of vascular plants, especially in the tropics Award for “ Best Templates... By clicking on that link 's audiences expect form and absorb water and minerals called.! The garden plants an economically important bryophyte are called EPIPHYLLOUS bryophytes and you ecological importance of pteridophytes ppt find out by., Mettupalayam to collect important slides you want to go back to later to. The harvesting, processing, and to show you more relevant ads determination of moisture content porosity. Help in the tropical rainforest and in wetland climates, moss balls form and absorb water the of! Sophisticated look that today 's audiences expect on bare rock, they create forests that provide habitat wildlife. Can reach some six metres in length for details New Machi... No public clipboards found for this.... Go back to later Class Notes for Students and Teachers of Life Science / Biological Science Standing Ovation Award “! Economic importance of bryophytes are as follows: 1 the soil moisture and help... The leaves of vascular plants, especially in the largest species of ferns can reach some six metres length! In maintaining … ABSTRACT tropical rainforest and in wetland climates, moss balls form and absorb water Walkowiak. To provide you with relevant advertising these climates, moss balls form and absorb water of xerophytes hydrophytes. To already these plants have a very important affect on the leaves vascular... 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