Saprophytic and parasitic modes of life

9,464 views
8,759 views

Published on

Published in: Technology, Self Improvement
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
9,464
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
29
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Saprophytic and parasitic modes of life

  1. 1. Distinguish between saprophytic and parasitic modes of life.
  2. 2. Some bacteria feed on decaying matter
  3. 3. Decayto become decomposed; rot:vegetation that was decaying.
  4. 4. decaying matterlike rotten trunk or leaves of plants. We call these plants as host plants
  5. 5. • These nitrates are taken up by plants roots and
  6. 6. • These nitrates are taken up by roots and converted in to new amino acids and proteins
  7. 7. •These saprotrophs are also called heterotrophs
  8. 8. Heterotrophs• They are incapable of manufacturing organic compounds from simple inorganic nutrients and so they obtain organic molecules from the environment in the form of food.
  9. 9. • Sapros refers to rotten and trophic refers to food
  10. 10. Examples of saprophytes :(plants which have saprotrophic nutrition) are Rhizopus (bread mould), Mucor (pin mould), Yeast, Agaricus(mushroom), many bacteria etc.
  11. 11. Parasitic Nutrition Feeding byliving in an organism Or On organism (host)
  12. 12. Host• Belongs to different species
  13. 13. • Is called Parasitic Nutrition
  14. 14. Examples of parasites• Puccinia• Dodder(Cuscuta)
  15. 15. • Puccinia is a genus of fungi
  16. 16. Dodder (leafless plant)
  17. 17. • After a dodder attaches itself to a plant, it wraps itself around it. If the host contains food beneficial to dodder, the dodder produces haustoria that insert themselves into the vascular system of the host.
  18. 18. • Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species• E.g potatoes
  19. 19. • Horticulture is the science, art, technology and business involved in intensive plant cultivation for human use. It is practiced from the individual level in a garden up to the activities of a multinational corporation.
  20. 20. Why normal nutrition not possible in parasite plants• Some of these plants have no chlorophyll and are entirely dependent on the host for food and water• Others are green and can produce some or all of their own food.

×