How Plants Resist Disease- A Focus on "Nonhost Resistance" of Pea to a Bean Pathogen

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ISBN: 978-93-87500-31-0

Single Authored eBook

Lee A Hadwiger

Professor Emeritus

Washington State University

The essence of this ebook is to fill in all of the features that are not mentioned in the simple answer given above and relate the molecular mechanisms involved by showing the data that forms the basis of the simple answer.

My lab continued for 50+ years utilizing an assay of pea tissue disease resistance responses initiated by Professor Cruickshank in Australia [1]. A plant such as pea grows in the soil while continually being confronted by all the microbes of the soil. Many of which successfully infect plant species other than pea-- how does the pea survive? I would like to sum up the general conclusions reached by all of us in my lab and some others throughout the decades to date, to answer this and other major scientific questions about disease resistance in plants.

Plants are full of nutrients that can support microbial growth and if the microbe can penetrate the plant defenses and break the cells the nutrients are technically there for the taking. However, the plant defense response makes this difficult...

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How Plants Resist Disease- A Focus on "Nonhost Resistance" of Pea to a Bean Pathogen

Author(s) : Hadwiger LA

An appreciation of this earth's botanical beauty exists in most of us. Master gardeners as well as the home based folks realize the magic of what plants do in surviving seasons, adverse soil, insects and pathogens, etc. The simple fact that a plant can develop a seed and this seed can shut down gene activity for a period and then with water magically restart and control the almost 20,000 genes and regulate them in a way that at the appropriate time activates the transcription of the genes for roots, leaves, flowers etc. Anyone that has had a high school biology class knows that the DNA within the nucleus of every cell has this 20 thousand gene information.

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