Auxin and Gravitropism in shoots and roots!
Gravitropism
Hiya
This is just an update on what I have learn about auxin and gravitropism in roots and shoots. Gravitropism helps the plant grow in the right direction for example in plants the leaves don't just stand up without the help of auxin and gravitropism. And this is known as a negative gravitropism.
So what is the role of auxin and in Gravitropism Response, experiments on shoot tips provide evidence that gravitropism is due to the different growth rates of upper and lower sides of the stem or root in response to auxin. While the roots grows down because roots elongation is inhibited by high levels of auxin on the lower surface.
Why gravitropism is important? From what I learned from our independent learning lesson, Gravitropism allowed the stem system to grow towards the surface while the root system extends further into the soil. It important for plant to adapt in this way to avoid the plant growing in the wrong direction, for example so the stem would not grow downwards. Or another good example in the roots without gravitropism the roots wouldn't be able to dig into the soil where they get nutrients. Both actions are imporatant and needed for the survival of the plant.
Thank you for reading
So what is the role of auxin and in Gravitropism Response, experiments on shoot tips provide evidence that gravitropism is due to the different growth rates of upper and lower sides of the stem or root in response to auxin. While the roots grows down because roots elongation is inhibited by high levels of auxin on the lower surface.
Why gravitropism is important? From what I learned from our independent learning lesson, Gravitropism allowed the stem system to grow towards the surface while the root system extends further into the soil. It important for plant to adapt in this way to avoid the plant growing in the wrong direction, for example so the stem would not grow downwards. Or another good example in the roots without gravitropism the roots wouldn't be able to dig into the soil where they get nutrients. Both actions are imporatant and needed for the survival of the plant.
Thank you for reading
