Water Molds: Oomycetes

Question 1

Water Molds(oomycetes)

Answer 1

Live in freshwater(Lakes, wetlands, rivers, wet soils);Have mobile spores; Chemoorganoheterotrophs(but more specifically Osmotrophs)

Question 2

Mobile Spores

Answer 2

reproductive propagules that swim; Thus, REQUIRE WATER FOR SUCCESSFUL REPRODUCTION

Question 3

Chemoorganoheterotrophs

Answer 3

use dead/living organic matter for energy and carbon

Question 4

Osmotrophs

Answer 4

release enzymes from their cells that digest (break down) organic matter OUTSIDE of the actual organism (EXTERNAL DIGESTION); Once enzymes have done their job, osmotrophs absorb products of digestion across cell membranes

Equivalent of spitting on donut that is enzymes that break down the donut, then smack down the donut with hand to absorb it

Question 5

Examples of Water Molds

Answer 5

Phytphthora infestans and Pythium insdiosum

Can cause root rot in plants, like rhodendron

Question 6

Phytphthora infestans

Answer 6

Water mold that caused the Irish Potato blight and Irish Potato Famine; Lead to starvation, death, and many Irish folks moving to North America

Question 7

Pythium insdiosum

Answer 7

Affects mammals, particularly horses, dogs; Disease, OFTEN DEADLY, caused by water molds; In news recently due to outbreak in Chincoteague ponies
(Euthanized from damage of pathogen, Dogs being exposed to water)