Mycoplasma Diseases of Crops


Book Description




The Virus, Mycoplasma and Rickettsia Diseases of Fruit Trees


Book Description

Fruit tree viruses, mycoplasma and rickettsia-like pathogen geral. Virus diseases of: pomaceous trees, stone fruit trees shell fruits. Mycoplasma diseases of fruit trees. Rickettsia diseases of fruit trees. Disorders and injuries of fruit trees that resemble virus diseases.




Mycoplasma Diseases of Trees and Shrubs


Book Description

Mycoplasma Diseases of Trees and Shrubs contains the edited papers presented at the Third Working Party meeting organized by Professor Karl Maramorosch at Rutgers University, New Jersey, in August 1979. This book also includes additional chapters by the invited contributors in the meeting. Organized into 15 chapters, this book begins with the isolation, characterization and identification of spiroplasmas and mycoplasma-like organisms. It then describes the various diseases of trees and shrubs, specifically yellows disease, stubborn disease, Paulownia witches' broom disease, mulberry dwarf, blueberry stunt, and sandal spike disease. It also elaborates the control of tree diseases by chemotherapy. This treatise will provide a standard reference work for all interested in plant mycoplasma diseases in forest pathology, entomology, and disease control.




Physiological Plant Pathology


Book Description

Plant pathology embraces all aspects of biological and scientific activity which are concerned with understanding the complex phenomena of diseases in plants. Physiological plant pathology represents those specialities within plant pathology which focus on the physiological and biochemical activities of pathogens and on the response of host plant tissues. Today there is an increasing recognition on the part of the scientific agri cultural community that only through a deeper and more fundamental under standing of all the interacting components of the agricultural biota can we expect to improve our capabilities of feeding an expanding world population. It is in this context that physiological plant pathology has assumed new significance within the broader field of plant pathology. No longer are studies on the biochemistry and physiology of pathogens and pathogenesis merely isolated academic exercises; rather, a substantial coherent body of knowledge is accumulating upon which our understanding of the process of disease developmen t and host resistance is being founded. It is from these foundations of knowledge that ultimately new insights into the control of plant diseases may be expected to grow. It seems appropriate, therefore, that at regular intervals those involved in the various subspecialities encompassing the broadest aspects of physiological plant pathology reassess the contributions within the particular specialities in the light of new knowledge and technologies for the purpose of articulating new and productive directions for the future.




Tree Mycoplasmas and Mycoplasma Diseases


Book Description

Mycoplasma are the smallest free-living prokaryotes lacking a cell wall and are, therefore, highly pleomorphic. This book is a contribution toward an understanding of the complex problems of tree diseases caused by mycoplasma-like organisms and their relatives.




Maize Diseases


Book Description




Plant Diseases Of Viral, Viroid, Mycoplasma And Uncertain Etiology


Book Description

The adverse impact of plant diseases is felt around the world. In this book, the contributors analyze the nature and origins of pathogens that affect some economically important food and fiber crops.




Diseases of Shade Trees


Book Description

Diseases of Shade Trees provides an introduction to tree diseases for students and others concerned with the care of shade and ornamental trees. Diseases of woody plants fall into two major categories: infectious diseases and noninfectious diseases. Part I of the book presents the infectious pathogens and the diseases they cause. These include bacteria, mycoplasmas, nematodes, seed plants, and viruses. The nature of the fungi is also presented, with separate chapters for leaf, root, rust, stem, and wilt diseases caused by fungi. Wound diseases, which are associated with both fungi and bacteria that invade wounds, are included in this section. Part II deals with noninfectious agents and the diseases they cause. Noninfectious agents are separated into environmental stress, animal injury, and people-pressure diseases. Diebacks and declines—complex diseases, which are often caused by a combination of both infectious and noninfectious agents are also included in this section. Part III on special topics includes discussions of nonpathogenic conditions often mistaken for diseases; diagnosis of tree diseases; and living hazard trees.




Diseases of Shade Trees, Revised Edition


Book Description

This revised edition maintains the clear, nontechnical format of the first, and covers the infectious diseases of shade trees, the major pathogens that cause them, and noninfectious diseases and their agents. Special topics include nonpathogenic conditions, disease diagnosis, and tree injection and implantation. Comprehensive disease control protocols, a detailed discussion of disease diagnosis, and tree diseases of the western and southern United States are among the useful additions to this widely used text and reference. This is an essential book for arboriculturists and students of aboriculture. - Only text available that deals exclusively with the diseases of shade trees - Emphasizes abiotic problems of shade trees, which account for most of the losses in the urban environment




Molecular Biology and Pathogenicity of Mycoplasmas


Book Description

was the result of the efforts of Robert Cleverdon. The rapidly developing discipline of molecular biology and the rapidly expanding knowledge of the PPLO were brought together at this meeting. In addition to the PPLO specialists, the conference invited Julius Marmur to compare PPLO DNA to DNA of other organisms; David Garfinkel, who was one of the first to develop computer models of metabolism; Cyrus Levinthal to talk about coding; and Henry Quastler to discuss information theory constraints on very small cells. The conference was an announcement of the role of PPLO in the fundamental understanding of molecular biology. Looking back 40-some years to the Connecticut meeting, it was a rather bold enterprise. The meeting was international and inter-disciplinary and began a series of important collaborations with influences resonating down to the present. If I may be allowed a personal remark, it was where I first met Shmuel Razin, who has been a leading figure in the emerging mycoplasma research and a good friend. This present volume is in some ways the fulfillment of the promise of that early meeting. It is an example of the collaborative work of scientists in building an understanding of fundamental aspects of biology.