Variability and Adaptation in [Phytophthora Infestans]

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (126 download)

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Book Synopsis Variability and Adaptation in [Phytophthora Infestans] by : Eric Robert Larson

Download or read book Variability and Adaptation in [Phytophthora Infestans] written by Eric Robert Larson and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Phytophthora infestans], the oomycete potato and tomato pathogen which has caused substantial crop losses since the Irish Potato Famine, has high genomic variability and is acutely responsive to external environmental signals. These signals drive adaptation and changes in virulence which are related to gene expression. In my dissertation, I addressed 4 areas of research with unique features, but with the aforementioned overarching theme. i) I assessed the sensitivity of [P. infestans] isolates from naturally-occurring infections in Wisconsin fields to the fungicide mefenoxam. Isolates of clonal lineages US-8 and US-23 both demonstrated resistance and susceptibility to the fungicide. All isolates with a moderate level of tolerance had greater variability among replicates than those with high or low levels of tolerance. ii) In a collaborative project, contact reflectance spectroscopy was used to discriminate between infections of US-8 and US-23. We found that during early infection, US-8 has a significantly higher expression of the [Avr3a] effector gene. iii) I investigated the impact of continuous sub-culturing of [P. infestans] on Rye Agar A on virulence of isolates of [P. infestans] US-8. A significant reduction in virulence occurred between the 5th and 6th sub-culture (p

Variation in Phytophthora Infestans

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ISBN 13 :
Total Pages : 226 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Variation in Phytophthora Infestans by : Ralph Vaughan James

Download or read book Variation in Phytophthora Infestans written by Ralph Vaughan James and published by . This book was released on 1983 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Adaptation of the Causal Agent of Potato Late Blight Disease, Phytophthora Infestans, to Climate Change

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

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Book Synopsis Adaptation of the Causal Agent of Potato Late Blight Disease, Phytophthora Infestans, to Climate Change by : Angie Carolina Córdoba Pacheco

Download or read book Adaptation of the Causal Agent of Potato Late Blight Disease, Phytophthora Infestans, to Climate Change written by Angie Carolina Córdoba Pacheco and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Phytophthora infestans is the causal agent of late blight disease of potatoes and tomatoes. This pathogen is highly dependent on environmental factors, such as temperature, to fully develop its life and disease cycle. Due to climate variations, changes in the patterns of plant diseases' development are expected to happen. Previous studies have evaluated the effect of temperature on the rate of sporangial germination, the development of the infection, and mycelia growth of P. infestans. These studies have shown that the response to temperature changes may vary depending on the genotypic diversity. However, the genetic basis associated to the phenotypic response for temperature changes has been scarcely studied. Through this study, we investigated the effect of temperature on the growth of Colombian isolates of P. infestans and we identified SNPs associated to relative growth assessed at different temperatures (5, 10, 15, 20, and 25°C). A high variation on the growth of the isolates at each evaluated temperature was found. However, for most isolates, the ideal growth temperature was 20°C. The population structure showed that two populations group most of the genotypes used in this study, and there are intermediate genotypes in this population. The association analysis between high-quality SNPs and the relative growth for temperature assessed was performed using a model GLM corrected with the Matrix Q. A total of 17 SNPs associated with relative growth at different temperatures were found and 13 SNPs were associated with growth at 5°C. Among these, four were related to genes, codifying for proteins with functions at the cellular level such as transport of amino acids, ATP binding, and hydrolysis of peptide bonds. This study provides further insights on the genetic basis of the response to temperature changes of isolates of P. infestans collected in Colombia.

Durability of Disease Resistance

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Publisher : Springer Science & Business Media
ISBN 13 : 9401120048
Total Pages : 370 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Durability of Disease Resistance by : Th. Jacobs

Download or read book Durability of Disease Resistance written by Th. Jacobs and published by Springer Science & Business Media. This book was released on 2012-02-02 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: From February 24 -28, 1992 an international symposium on Durability of Disease Resistance was held at the International Agricultural Centre in Wageningen, the Netherlands. The symposium, organized by the Department of Plant Breeding of Wageningen Agricultural University and the Centre for Plant Breeding and Repro duction Research, CPRO-DLO, was part of the DGIS funded programme Durable Resistance in Developing Countries. Without any form of prevention or protection nearly all crops will be seriously or even severely damaged by a range of pathogens. In modern agriculture man has been able to control many if not most pathogens using i) pesticides, ii) phyto sanitary methods such as control of seed and plant material in order to start a crop disease free, iii) agronomic measures such as crop rotation, iv) disease resis tance or combinations of these measures. Over the years the use of pesticides has increased enormously and so did the pro blems associated with pesticide use, such as environmental pollution and building of resistance and tolerance to these pesticides in the pathogens. The use of resis tance too increased strongly over the years and here too problems arose.

Integrated Management of Diseases Caused by Fungi, Phytoplasma and Bacteria

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Publisher : Springer Science & Business Media
ISBN 13 : 1402085710
Total Pages : 436 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Integrated Management of Diseases Caused by Fungi, Phytoplasma and Bacteria by : Aurelio Ciancio

Download or read book Integrated Management of Diseases Caused by Fungi, Phytoplasma and Bacteria written by Aurelio Ciancio and published by Springer Science & Business Media. This book was released on 2008-08-19 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on integrated pest and disease management (IPM/IDM) and biocontrol of some key diseases of perennial and annual crops. It continues a series originated during a visit of prof. K. G. Mukerji to the CNR Plant Protection Institute in Bari (Italy), in November 2005. Both editors aim at a series of five volumes embracing, in a multi-disciplinary approach, advances and achievements in the practice of crop protection, for a wide range of plant parasites and pathogens. Two volumes of the series were already produced, dedicated to general concepts in IPM and to management and biocontrol of nematodes of grain crops and vegetables. This Volume deals, in particular, with diseases due to bacteria, phytoplasma and fungi. Every day, in any agroecosystem, farmers face problems related to plant diseases. Since the beginning of agriculture, indeed, and probably for a long time in the future, farmers will continue to do so. Every year, plant diseases cause severe losses in the global production of food and other agricultural commodities, worldwide. Plant diseases are not limited to episodic events occurring in single farms or crops, and should not be regarded as single independent cases, affecting only farms on a local scale. The impact of plant disease epidemics on food shortage ignited, in the last two centuries, deep cultural, social and demographic changes, affecting million human beings, through i. e. migration, death and hunger.

Potato Production Systems

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Publisher : Springer Nature
ISBN 13 : 3030391574
Total Pages : 633 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Potato Production Systems by : Jeffrey C. Stark

Download or read book Potato Production Systems written by Jeffrey C. Stark and published by Springer Nature. This book was released on 2020-04-27 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive guide to potato production systems management contains 20 chapters and more than 350 color photographs. Beginning with the history of potato culture, it spans all aspects of potato production, pest and planting management, storage, and marketing. Written by a team of over 35 scientists from North America, this book offers updated research-based information and serves as a unique, valuable tool for researchers, extension specialists, students, and farm managers. More than a description of principles, it contains practical analytical tools, charts, and methods to create guidelines for best production practices and cost estimates. Some key areas include: Potato Growth and Development, Potato Variety Selection and Management, Seed and Planting Management, Seed Production and Certification, Field Selection, Crop Rotation, and Soil Management, Integrated Pest Management for Potatoes, Potato Nutrient Management, Irrigation Management, Tuber Quality, Economics and Marketing, Production Costs, among others. Potato Production Systems should be a valuable reference for successful culture of the "noble tuber."

Germination and Infection with the Fungus of the Late Blight of Potato (phytophthora Infestans)

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ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Germination and Infection with the Fungus of the Late Blight of Potato (phytophthora Infestans) by : Irving E. Melhus

Download or read book Germination and Infection with the Fungus of the Late Blight of Potato (phytophthora Infestans) written by Irving E. Melhus and published by . This book was released on 1915 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Spread of Potato Blight in Europe in 1845-6 and the Accompanying Wind and Weather Patterns

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Publisher :
ISBN 13 : 9780952123200
Total Pages : 65 pages
Book Rating : 4.1/5 (232 download)

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Book Synopsis The Spread of Potato Blight in Europe in 1845-6 and the Accompanying Wind and Weather Patterns by : Austin Bourke

Download or read book The Spread of Potato Blight in Europe in 1845-6 and the Accompanying Wind and Weather Patterns written by Austin Bourke and published by . This book was released on 1993 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Crop Stress and its Management: Perspectives and Strategies

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Publisher : Springer Science & Business Media
ISBN 13 : 9400722206
Total Pages : 617 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Crop Stress and its Management: Perspectives and Strategies by : B. Venkateswarlu

Download or read book Crop Stress and its Management: Perspectives and Strategies written by B. Venkateswarlu and published by Springer Science & Business Media. This book was released on 2011-11-22 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crops experience an assortment of environmental stresses which include abiotic viz., drought, water logging, salinity, extremes of temperature, high variability in radiation, subtle but perceptible changes in atmospheric gases and biotic viz., insects, birds, other pests, weeds, pathogens (viruses and other microbes). The ability to tolerate or adapt and overwinter by effectively countering these stresses is a very multifaceted phenomenon. In addition, the inability to do so which renders the crops susceptible is again the result of various exogenous and endogenous interactions in the ecosystem. Both biotic and abiotic stresses occur at various stages of plant development and frequently more than one stress concurrently affects the crop. Stresses result in both universal and definite effects on plant growth and development. One of the imposing tasks for the crop researchers globally is to distinguish and to diminish effects of these stress factors on the performance of crop plants, especially with respect to yield and quality of harvested products. This is of special significance in view of the impending climate change, with complex consequences for economically profitable and ecologically and environmentally sound global agriculture. The challenge at the hands of the crop scientist in such a scenario is to promote a competitive and multifunctional agriculture, leading to the production of highly nourishing, healthy and secure food and animal feed as well as raw materials for a wide variety of industrial applications. In order to successfully meet this challenge researchers have to understand the various aspects of these stresses in view of the current development from molecules to ecosystems. The book will focus on broad research areas in relation to these stresses which are in the forefront in contemporary crop stress research.

Plant-Pathogen Interactions

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Publisher : Humana
ISBN 13 : 9781493963232
Total Pages : 0 pages
Book Rating : 4.9/5 (632 download)

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Book Synopsis Plant-Pathogen Interactions by : Paul Birch

Download or read book Plant-Pathogen Interactions written by Paul Birch and published by Humana. This book was released on 2016-09-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant-Pathogen Interactions: Methods and Protocols, Second Edition expands upon the first edition with current, detailed protocols for the study of plant pathogen genome sequences. It contains new chapters on techniques to help identify and characterize effectors and to study their impacts on host immunity and their roles in pathogen biology. Additional chapters focus on protocols to identify avirulence and resistance genes, investigate the roles of effector targets and other defence-associated proteins in plant immunity. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Plant-Pathogen Interactions: Methods and Protocols, Second Edition seeks to aid scientists in the further study of plant immunity.

Late blight: Managing the global threat, proceedings.

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Publisher : International Potato Center
ISBN 13 : 9789290602156
Total Pages : 192 pages
Book Rating : 4.6/5 (21 download)

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Book Synopsis Late blight: Managing the global threat, proceedings. by :

Download or read book Late blight: Managing the global threat, proceedings. written by and published by International Potato Center. This book was released on 2002 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Field assessment of resistance in potato to Phytophthora infestans

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Publisher : International Potato Center
ISBN 13 : 9290604409
Total Pages : 40 pages
Book Rating : 4.2/5 (96 download)

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Book Synopsis Field assessment of resistance in potato to Phytophthora infestans by : Forbes, G

Download or read book Field assessment of resistance in potato to Phytophthora infestans written by Forbes, G and published by International Potato Center. This book was released on 2014-06-27 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present guide is designed to assist professionals and technicians in charge of evaluation trials designed to screen selected potato genotypes for resistance to this disease. The evaluation of breeding families, which is carried out under greenhouse or field conditions, can use the same methodology. The guide can help to organize trials, improve data collection and analysis and introduces new criteria for resistance measurement based on epidemiological principles.

Significance of Variation in Phytophthora Infestans

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Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Significance of Variation in Phytophthora Infestans by : Alfonso Castronovo

Download or read book Significance of Variation in Phytophthora Infestans written by Alfonso Castronovo and published by . This book was released on 1954 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Building Resilience for Adaptation to Climate Change in the Agriculture Sector

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Publisher : Food & Agriculture Organization of the UN (FAO)
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Building Resilience for Adaptation to Climate Change in the Agriculture Sector by : Alexandre Meybeck

Download or read book Building Resilience for Adaptation to Climate Change in the Agriculture Sector written by Alexandre Meybeck and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2012 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The joint workshop on Building resilience for adaptation to climate change in the agriculture sector was organized by FAO and OECD, and was held from 23 to 24 April 2012, at FAO headquarters in Rome."--P. 5.

Potato Trials

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ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Potato Trials by : Jeremiah Wilson Sanborn

Download or read book Potato Trials written by Jeremiah Wilson Sanborn and published by . This book was released on 1891 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Return to Resistance

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Publisher : IDRC
ISBN 13 : 9780889367746
Total Pages : 502 pages
Book Rating : 4.3/5 (677 download)

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Book Synopsis Return to Resistance by : Raoul A. Robinson

Download or read book Return to Resistance written by Raoul A. Robinson and published by IDRC. This book was released on 1996 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the tradition of Silent Spring, Raoul Robinson's Return to Resistance calls for a revolution. Traditional plant breeding techniques have led us to depend more and more on chemical pesticides to protect ourcrops. Return to Resistance shows gardeners, farmers, and plant breeders how to use a long-neglected technique to create hardy new plant varieties that are naturally resistant to pests and disease. Horizontal resistance breeding has been largely ignored in this century due to the popularity and apparent successes of the Mendelian geneticists. However the colossal, unrecognized failure of m.

Advances in Plant Pathology

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Publisher :
ISBN 13 : 9780120337019
Total Pages : 240 pages
Book Rating : 4.3/5 (37 download)

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Book Synopsis Advances in Plant Pathology by : David S. Ingram

Download or read book Advances in Plant Pathology written by David S. Ingram and published by . This book was released on 1982 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: