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Post harvest diseases fruits and vegetables - Xavier University ...

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FREEDOM PALESTINE FREEDOM PALESTINE FREEDOM PALESTINE<br />

Vlll<br />

Contents<br />

Chapter 5. ATTACK MECHANISMS OF THE PATHOGEN<br />

A. Enzymatic Activity 54<br />

B. Toxin Production 59<br />

C. Detoxification of Host-Defense Compounds<br />

by Pathogens 64<br />

Chapter 6. HOST PROTECTION AND DEFENSE MECHANISMS<br />

A. The Cuticle as a Barrier Against Invasion 66<br />

B. Inhibitors of Cell-Wall Degrading Enzymes 66<br />

C. Preformed Inhibitory Compounds 69<br />

D.Phytoalexins-Induced Inhibitory Compounds 76<br />

E. Wound Healing <strong>and</strong> Host Barriers 84<br />

F. Active Oxygen 90<br />

G. Pathogenesis-Related Proteins 92<br />

Chapter 7. PHYSIOLOGICAL AND BIOCHEMICAL CHANGES<br />

FOLLOWING INFECTION<br />

A. Changes in Fruit Respiration <strong>and</strong><br />

Ethylene Evolution 94<br />

B. Ethylene Source in Infected Tissue 100<br />

C. Pectolytic Activity <strong>and</strong> its Source in<br />

Infected Tissue 102<br />

D. Stimulation of Fruit Softening <strong>and</strong> Changes<br />

in the Pectic Compound Contents 103<br />

E. Changes in Biochemical Constituents<br />

of Infected Tissues 105<br />

Chapter 8. MEANS FOR MAINTAINING HOST RESISTANCE<br />

A. Cold Storage 108<br />

B. Modified <strong>and</strong> Controlled Atmospheres 121<br />

(1) Controlled Atmosphere 122<br />

(2) Controlled Atmosphere with<br />

Carbon Monoxide 130<br />

(3) Modified Atmosphere Packaging 131<br />

(4) Hypobaric Pressure 135<br />

C. Growth Regulators 137<br />

D. Calcium Application 142<br />

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