An Introduction to Embryophyta PDF Download
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Author: N. S. Parihar
Publisher:
ISBN:
Category : Bryophytes
Languages : en
Pages : 324
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Book Description
Author: N. S. Parihar
Publisher:
ISBN:
Category : Bryophytes
Languages : en
Pages : 324
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Book Description
Author: Rashid A.
Publisher: Vikas Publishing House
ISBN: 8125907092
Category : Science
Languages : en
Pages : 436
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Book Description
An informative, innovative and comprehensive text on the subject, the second revised edition of the book offers a coherent account of various aspects of pteridophyta, in the light of new findings. It covers the entire course of reading on the subject for BSc and MSc degrees.
Author: R. N. Chopra
Publisher: New Age International
ISBN: 9788122413434
Category : Bryology
Languages : en
Pages : 408
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Book Description
The Study Of Bryophytes Is No Longer Confined To Their Morphology, Anatomy, Life-History, And Phylogenetic Considerations. In Recent Years There Has Been An Increasing Emphasis On Investigations Concerning The Ultrastructure, Reproductive Biology, Ecology, Morphogenesis, Physiology, Biochemistry And Related Aspects Of Bryophytes. These Themes Have Also Rightfully Found Their Place In The Syllabi At All Levels In Most Universities All Over The Globe. However, The Writing Of Texts In This Area Has Lagged Behind. Since The Literature Is Scattered And At Times Not Easy To Reach, There Is An Urgent Need For A Book Which Deals With The Modern Topics Of Bryology. This Volume Is Intended To Fill This Gap. The Authors Have Tried To Make The Compilation Of The Literature As Up-To-Date As Possible, And The References Cited In The Text Have Been Listed At The End Of Each Chapter For Those Interested In More Details. Most Of The Illustrations Have Been Taken From Recent Research Publications And These Have Not Previously Been Included In Any Book As Far As We Aware. Summary Charts And Tables Are Provided At All Appropriate Places.
Author: Karl J. Niklas
Publisher: University of Chicago Press
ISBN: 022634228X
Category : Science
Languages : en
Pages : 590
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Book Description
Although plants comprise more than 90% of all visible life, and land plants and algae collectively make up the most morphologically, physiologically, and ecologically diverse group of organisms on earth, books on evolution instead tend to focus on animals. This organismal bias has led to an incomplete and often erroneous understanding of evolutionary theory. Because plants grow and reproduce differently than animals, they have evolved differently, and generally accepted evolutionary views—as, for example, the standard models of speciation—often fail to hold when applied to them. Tapping such wide-ranging topics as genetics, gene regulatory networks, phenotype mapping, and multicellularity, as well as paleobotany, Karl J. Niklas’s Plant Evolution offers fresh insight into these differences. Following up on his landmark book The Evolutionary Biology of Plants—in which he drew on cutting-edge computer simulations that used plants as models to illuminate key evolutionary theories—Niklas incorporates data from more than a decade of new research in the flourishing field of molecular biology, conveying not only why the study of evolution is so important, but also why the study of plants is essential to our understanding of evolutionary processes. Niklas shows us that investigating the intricacies of plant development, the diversification of early vascular land plants, and larger patterns in plant evolution is not just a botanical pursuit: it is vital to our comprehension of the history of all life on this green planet.
Author: Rashid A.
Publisher: Vikas Publishing House
ISBN: 9788125905691
Category : Science
Languages : en
Pages : 312
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Book Description
This endeavour is aimed to be comprehensive and innovative. It covers the entire course of reading in Bryology. After a brief Introduction, there is an account of array of diversity and development of Bryophytes. In three chapters on Liverworts, Hornworts and Mosses, one can find an illustrated and concise account of all representative types. It is followed by comparative morphology. In two chapters on Gametophyte and Sporophyte are unravelled the elements of unity in diversity. Due emphasis has been given to experimental studies. In five chapters are traced the events of life cycle; Spore germination, Protonema differentiation and Gametophyte initiation, Sexuality and Sporophyte development, Regeneration, and Alternation of generations. Experimental studies a backbone of this book are not only interesting in a class room but informative to decipher different aspects of differentiation. Finally, there is food for thought in chapters on Cytogenetics and Evolution, and Origin and Fossil History. At the end is an extensive bibliography of old and new Literature, for further reading.
Author: Jiayang Li
Publisher: Academic Press
ISBN: 0128115637
Category : Science
Languages : en
Pages : 618
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Book Description
Plant Hormones: Biosynthesis and Mechanisms of Action is based on research funded by the Chinese government's National Natural Science Foundation of China (NSFC). This book brings a fresh understanding of hormone biology, particularly molecular mechanisms driving plant hormone actions. With growing understanding of hormone biology comes new outlooks on how mankind values and utilizes the built-in potential of plants for improvement of crops in an environmentally friendly and sustainable manner. This book is a comprehensive description of all major plant hormones: how they are synthesized and catabolized; how they are perceived by plant cells; how they trigger signal transduction; how they regulate gene expression; how they regulate plant growth, development and defense responses; and how we measure plant hormones. This is an exciting time for researchers interested in plant hormones. Plants rely on a diverse set of small molecule hormones to regulate every aspect of their biological processes including development, growth, and adaptation. Since the discovery of the first plant hormone auxin, hormones have always been the frontiers of plant biology. Although the physiological functions of most plant hormones have been studied for decades, the last 15 to 20 years have seen a dramatic progress in our understanding of the molecular mechanisms of hormone actions. The publication of the whole genome sequences of the model systems of Arabidopsis and rice, together with the advent of multidisciplinary approaches has opened the door to successful experimentation on plant hormone actions. - Offers a comprehensive description of all major plant hormones including the recently discovered strigolactones and several peptide hormones - Contains a chapter describing how plant hormones regulate stem cells - Offers a fresh understanding of hormone biology, particularly molecular mechanisms driving plant hormone actions - Discusses the built-in potential of plants for improvement of crops in an environmentally friendly and sustainable manner
Author: Bhojwani S.S/Bhatnagar S.P. & Dantu P.K.
Publisher: Vikas Publishing House
ISBN: 9325981297
Category : Science
Languages : en
Pages : 389
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Book Description
For the last 40 years this book has served well the students of Botany, Agriculture and Forestry for their regular courses like BSc. (General and Hons) and MSc., as well as competitive examinations. It has stood the test of time due to the authors’ zeal to update it regularly with inputs from latest developments in the field. Since the last revision of the book, the methods used to study plant embryology have changed radically. Powerful modern biological techniques are now being applied to understand the developmental aspects and genetic and molecular bases of embryological processes. It has become possible to generate tissue specific mutants by T-DNA insertional mutagenesis, use of green fluorescent protein probes for live imaging of growing cells and tissues and to analyze gene expression in few-celled structures, such as early stages of embryo, and constituent cells of the male and female gametophytes. These techniques, combined with the development of high resolution confocal laser scanning microscopy, have provided non-invasive methods to view live processes, such as pollen tube growth in the pistil and double fertilization under in situ conditions. The book has been translated into Japanese and Korean languages. KEY FEATURES • Well established text with content rigorous enough for both UG and PG studies • Covers important topics like development and structure of male and female gametophytes, pollination, fertilization, sexual incompatibility, development of endosperm and embryo, polyembryony, apomixis and seed development • Describes embryology in relation to taxonomy and experimental and applied embryology Use of tables and figures to depict important data and information • Updated as per the new developments in the study of plant embryology
Author: R. M. Johri
Publisher:
ISBN:
Category : Bryophytes
Languages : en
Pages : 340
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Book Description
Author: Michael G. Simpson
Publisher: Elsevier
ISBN: 0080514049
Category : Nature
Languages : en
Pages : 603
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Book Description
Plant Systematics is a comprehensive and beautifully illustrated text, covering the most up-to-date and essential paradigms, concepts, and terms required for a basic understanding of plant systematics. This book contains numerous cladograms that illustrate the evolutionary relationships of major plant groups, with an emphasis on the adaptive significance of major evolutionary novelties. It provides descriptions and classifications of major groups of angiosperms, including over 90 flowering plant families; a comprehensive glossary of plant morphological terms, as well as appendices on botanical illustration and plant descriptions. Pedagogy includes review questions, exercises, and references that complement each chapter. This text is ideal for graduate and undergraduate students in botany, plant taxonomy, plant systematics, plant pathology, ecology as well as faculty and researchers in any of the plant sciences. - The Henry Allan Gleason Award of The New York Botanical Garden, awarded for "Outstanding recent publication in the field of plant taxonomy, plant ecology, or plant geography" (2006) - Contains numerous cladograms that illustrate the evolutionary relationships of major plant groups, with an emphasis on the adaptive significance of major evolutionary novelties - Provides descriptions and classifications of major groups of angiosperms, including over 90 flowering plant families - Includes a comprehensive glossary of plant morphological terms as well as appendices on botanical illustration and plant description
Author: Rashid A.
Publisher: Vikas Publishing House
ISBN: 9325994038
Category : Science
Languages : en
Pages : 216
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Book Description
The book covers the entire course on archegoniate plants which is prescribed in the syllabi of different universities for undergraduate students. The presentation is comprehensive and innovative. The book describes different divisions of plant kingdom related to archegoniate plants covering their life cycle, relationship, classification and economic importance. Details of different genera in terms of morphology, anatomy, reproduction and sexuality have been explained with due diagrams. The book also discusses topics like heterospory, seed habit, leaf phylogeny, stellar system, alternation of generations, regeneration in general and special role of germ cells—egg and spore—in life cycle. Experimental studies described in the book highlight the phenomena of apogamy and apospory, their occurrence, induction and alternate role in life cycle. Also given are accounts on micropropagation of gymnosperms and ferns, for commerce and industry. Key Features • Covers Bryophytes, Pteridophytes and Gymnosperms • Loaded with up-to-date information gathered through research results • Supports description through explicit diagrams for clear understanding • Short and to-the-point description so as to cover the entire syllabus within a semester
