Questions on the herbicide triazine

  • Thread starter SDNess
  • Start date
In summary, triazines are herbicides that block the photosystem II complex in the electron transport chain of plants, leading to disruption of photosynthesis. This is caused by triazine molecules attaching to the D1 protein in Photosystem II, preventing plastoquinone A from attaching. Some plants have developed resistance to triazine through mutations in the target site, similar to antibiotic resistance in bacteria. These resistant weeds have become a major problem in agriculture and the environment.
  • #1
SDNess
33
0
Some questions on the herbicide triazine:

Triazines block the photosystem II complex in the electron transport chain in the thylakoid membrane of plants. This occurs because triazine attaches to the D1 protein in Photosystem II at the same position where plastoquinone A should attach. Triazine resistant weeds are prevalent and present a major agricultural problem.

1. How is the functioning of the electron transport chain and process of phosynthesis affected by the presence of triazine molecules?
2. How could a plant be resistant to triazine molecules?
3. Why have these weeds become a widespread problem in the environment?
 
Biology news on Phys.org
  • #2


Originally posted by SDNess
1. How is the functioning of the electron transport chain and process of phosynthesis affected by the presence of triazine molecules?

You should look on the electron transport chain for human and the effect of arsenic. This is question is fairly simple if you know how photosyntheis work and what it does for the plant.

Originally posted by SDNess
2. How could a plant be resistant to triazine molecules?

Similar to some antibitotics resistance mechanism in bacteria, a mutation in the target site. Do a google search with triazine resistance mechanism and you will find info.

Originally posted by SDNess
3. Why have these weeds become a widespread problem in the environment?

Similar to some problem with antibitotic resistant bacteria
 
  • #3
Thanks. I like how you didn't directly answer the questions. It let's me do the research.
 
  • #4
I am not here to do your homework :wink:
 

1. What is the purpose of using the herbicide triazine?

The herbicide triazine is used to control and eliminate weeds in agricultural crops, as well as in non-crop areas such as roadsides and industrial sites. It works by inhibiting the growth of photosynthetic organisms, ultimately killing the targeted plants.

2. Is the herbicide triazine safe for humans and the environment?

Extensive research has been conducted on the safety of triazine herbicides, and they have been approved for use by regulatory agencies. However, as with any chemical, it is important to follow proper usage instructions and precautions to minimize potential risks to humans and the environment.

3. How does the herbicide triazine affect non-target plants?

Triazine herbicides are selective, meaning they only affect plants with specific genetic traits. Non-target plants that do not possess these traits are not affected by triazine herbicides.

4. Can weeds develop resistance to the herbicide triazine?

Yes, weeds can develop resistance to triazine herbicides over time. This is why it is important to rotate herbicides and use various weed control methods to prevent resistance from developing.

5. Are there any potential negative impacts of using the herbicide triazine?

While triazine herbicides have been extensively tested and approved for use, there have been concerns about their potential impact on human health and the environment. Some studies have linked triazine exposure to health issues in humans, and there is also evidence of environmental contamination and harm to non-target organisms. It is important to carefully consider the potential risks and benefits before using this herbicide.

Similar threads

Replies
4
Views
1K
  • Biology and Medical
Replies
1
Views
817
  • Biology and Chemistry Homework Help
Replies
1
Views
3K
Replies
4
Views
3K
  • Biology and Medical
Replies
4
Views
5K
Replies
1
Views
2K
  • Biology and Chemistry Homework Help
Replies
1
Views
14K
  • Biology and Chemistry Homework Help
Replies
2
Views
8K
  • Biology and Chemistry Homework Help
Replies
2
Views
2K
  • Biology and Chemistry Homework Help
Replies
2
Views
6K
Back
Top