Pythium

Pythium structure and reproduction

1. Pythium: Introduction, Structure and Reproduction Presented by Dr. E.Gayathiri Department of Plant Biology and Plant Biotechnology Guru Nanak College

2. LEARNING OBJECTIVES HABITAT SYMPTOMS OF PYTHIUM STRUCTURE OF PYTHIUM REPRODUCTION

3. Systematic position   Phylum – Heterokonta Class - Peronosporomycetes Order - Pythiales Family - Pythiaceae Genus- Pythium

4. HABITAT 92 species (28 species from India) Cosmopolitan in distribution. Aquatic , terrestria l or amphibious . They are facultative parasite , saprophytic and parasitic

5. Pythium  are divided in two types On basis of diseases that affect plant parts In contact above the ground parts In contact with the soil Common disease caused by Pythium Damping off Soft rot Wheat rot or foot rot

6. Source: Pythium Stock Photos & Pythium Stock Images – Alamy alamy.com

7. Symptoms of Pythium Soybean seed and seedling diseases ... extension.umn.edu Damping-off : Identifying and Controlling Pathogens in Transplant ...

8. Structure of Pythium

9. Structure of Pythium

10. Pythium- Asexual reproduction

11. Fertilized egg secretes a thick wall and changes into an   oospore

12. Pythium- Sexual reproduction

13. Germination

14. PYTHIUM GERMINATION

15. LIFE CYCLE OF PYTHIUM

16. Control of the Disease Caused by Pythium