Some Factors Affecting the Transmission of Pea Enation Mosaic Virus by the Pea Aphid, Acyrthosiphon Pisum (harris), with Emphasis on the Inoculation Phase of the Transmission Cycle PDF Download

Author: James Hsi-cho Tsai
Publisher:
ISBN:
Category : Beetles
Languages : en
Pages : 148

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Author: Kerry F. Harris
Publisher:
ISBN:
Category : Virus diseases of plants
Languages : en
Pages : 320

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Author: B.D. Harrison
Publisher: Springer Science & Business Media
ISBN: 1489917721
Category : Science
Languages : en
Pages : 375

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Book Description
This fifth volume in the series The Plant Viruses, dealing with viruses with bipartite genomes, completes the coverage of viruses with isometric parti cles and genomes consisting of single-stranded, positive-sense RNA: viruses that have tripartite and monopartite genomes of this kind were dealt with in Volumes 1 and 3, respectively. How close are the affinities among the viruses within the groupings distinguished in this way? All those with tripartite genomes are considered to be sufficiently closely related to be included in the family Bromoviridae, whereas the monopartite-genome viruses covered in Volume 3 clearly are a much more diverse collection. Affinities among the viruses with bipartite genomes are considered in Chapter 1 of this volume, along with the possible origins, advantages, and disadvantages of these ge nomes. The conclusion reached from this assessment is that the bipartite genome viruses fall into four categories, those within each category having closer affinities with viruses not included in this book than with viruses in the other categories. No evidence was found that possession of a bipartite genome gives a virus overwhelming advantages over viruses of other sorts. More probably, any advantages are largely balanced by disadvantages, and bipartite genomes may be best considered simply as an alternative design for the hereditary material of a virus.

Author: National Agricultural Library (U.S.)
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 584

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Author: Xerox University Microfilms
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1240

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Author: Scott N. Johnson
Publisher: John Wiley & Sons
ISBN: 1119070902
Category : Science
Languages : en
Pages : 412

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Book Description
Invertebrates perform such vital roles in global ecosystems—and so strongly influence human wellbeing—that biologist E.O. Wilson was prompted to describe them as “little things that run the world.” As they are such powerful shapers of the world around us, their response to global climate change is also pivotal in meeting myriad challenges looming on the horizon—everything from food security and biodiversity to human disease control. This book presents a comprehensive overview of the latest scientific knowledge and contemporary theory relating to global climate change and terrestrial invertebrates. Featuring contributions from top international experts, this book explores how changes to invertebrate populations will affect human decision making processes across a number of crucial issues, including agriculture, disease control, conservation planning, and resource allocation. Topics covered include methodologies and approaches to predict invertebrate responses, outcomes for disease vectors and ecosystem service providers, underlying mechanisms for community level responses to global climate change, evolutionary consequences and likely effects on interactions among organisms, and many more. Timely and thought-provoking, Global Climate Change and Terrestrial Invertebrates offers illuminating insights into the profound influence the simplest of organisms may have on the very future of our fragile world.

Author:
Publisher:
ISBN:
Category : Union catalogs
Languages : en
Pages : 984

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Includes entries for maps and atlases.

Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 440

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Author: Donald J. Hagedorn
Publisher:
ISBN:
Category : Peas
Languages : en
Pages : 84

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Book Description
Biotic diseases; Abiotic diseases.

Author: National Agricultural Library (U.S.)
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 586

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