HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do Dodders survive?
A
They make their own sugar
B
They gather their own water
C
They do everything other plants do
D
They steal sugar from other plants
Explanation: 

Detailed explanation-1: -Dodders penetrate host tissue, and absorb nutrients via specialized structures called haustoria. Once established on a host, the bottom of a dodder plant dies (thereby severing its connection with the soil), and the dodder plant becomes dependent on the host plant for water and nutrients.

Detailed explanation-2: -The dodder contains no chlorophyll and instead absorbs food through haustoria; these are rootlike organs that penetrate the tissue of a host plant and may kill it.

Detailed explanation-3: -The parasites, known as dodder, but also called wizard’s net, devil’s hair or strangleweed, feed on other plants by attaching themselves to their hosts via a special organ, the haustorium, and withdrawing nutrients from them. They have neither roots nor leaves. Without leaves, they are hardly able to photosynthesize.

Detailed explanation-4: -An example of this is the dodder ((Figure)), which has a weak, cylindrical stem that coils around the host and forms suckers. From these suckers, cells invade the host stem and grow to connect with the vascular bundles of the host. The parasitic plant obtains water and nutrients through these connections.

There is 1 question to complete.