Download Introduction to Plant Pathology by Richard N. Strange PDF

By Richard N. Strange

This beneficial source introduces the 11 varieties of organism that reason plant disorder, starting from greater crops to viroids and describes examples of money and staple crop illnesses that experience brought on human catastrophes. Early chapters conceal serological and molecular concepts for the prognosis of plant pathogens, epidemiology, equipment for estimating ailment severity and its impression on crop yields and methods for proscribing inoculum. Later chapters are focused on colonisation of the plant and symptom improvement and the underlying biochemical and genetic elements that keep watch over those occasions. eventually, the keep watch over of plant sickness utilizing quite a few recommendations together with genetic amendment is mentioned.

  • Modern diagnostic techniques
  • Epidemiology and the size of ailment severity
  • The biochemistry and molecular biology of plant disease
  • Control via cultural, organic, genetic and molecular techniques
  • A wealth of examples and purposes together with complete color photographs

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Extra resources for Introduction to Plant Pathology

Example text

This is ‘sandwiched’ by adding another antibody which has been conjugated with an enzyme such as alkaline phosphatase. When substrate for the enzyme is added such as p-nitrophenyl phosphate a coloured reaction product is obtained. Normally the intensity of the colour is determined spectrophotometrically to give a measure of the amount of antigen, using a plate reader. In I-ELISA, antibody is bound to a solid support, as in DAS-ELISA, and this binds the antigen. However, the bound antigen is recognized by an antibody raised in a second animal and this second antibody is recognized by a further antibody, which is conjugated to an appropriate enzyme.

For example, potatoes are infected by Clavibacter michiganensis subsp. sepedonicus. Symptoms consist of wilting of leaves which become pale green to yellow and develop necrotic areas but these are easily confused with other wilts and foliage diseases, and natural senescence. 18). 4) has meant that losses are usually only sporadic. Another subspecies of Clavibacter michiganensis, C. michiganensis subsp. michiganensis was found in tomato fields in Cyprus and losses were reported as heavy (Ioannou, Psallidas and Glynos, 2000).

E. carotovora subsp. carotovora causes soft rot of potatoes and a wide range of fruits and vegetables. The bacterium may limit potato storage, particularly in warm environments and may cause total loss of seed and ware potatoes during shipment. Part of the difficulty in controlling the post-harvest disease syndrome is that infected potatoes may appear healthy, the infection being present but latent. Pseudomonas, Burkholderia and Ralstonia Many serious plant diseases are caused by species and pathovars of Pseudomonas but some of these bacteria are now classified as members of the genera Burkholderia and Ralstonia.

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