Protection of plants against toxic substances, Biology

Assignment Help:

Protection of Plants against Toxic Substances

Plants produce several toxic substances themselves and may also encounter the ones produced by other plants or present in the environment. Toxic effects of these substances is prevented by confining them in some part of the plant's organs (e.g., seeds, roots and leaves), tissues (e.g., epidermal layer and the spongy mesophyll), organelles (e.g., vacuoles and chloroplasts) or extra cytoplasmic space (cell wall etc.). The enzymes involved in degradation of these substances are also concentrated in these parts. Usually autogenous (self-produced) toxins are stored as their non-toxic derivative.

The enzymes that modify self-toxins can also detoxify toxins of foreign origin. Plants have evolved a huge arsenal of enzymes catalysing chemical modification of such toxic compounds. In some cases, a small number of enzymes with each one targeted towards a broad group of chemicals is produced. Both these kinds of enzymes have been found in plants.


Related Discussions:- Protection of plants against toxic substances

# FUNGAL NUTRITION, Write on spoilage of food products by fungi,nutrition,c...

Write on spoilage of food products by fungi,nutrition,condition for growth,consequencies and prevention.

Minimum difference in height among any two people, Suppose that there are s...

Suppose that there are six pairs of alleles which control height and that every dominant allele adds 5cm to the stature. Assume also that the average height of an adult (with equal

What are sarcomeres, Q. What are sarcomeres? Sarcomeres are the contrac...

Q. What are sarcomeres? Sarcomeres are the contractile units of the muscle tissue formed of alternating myosin blocks (thick filaments) and actin blocks (thin filaments). Sever

Development of endosperm, Development of Endosperm In a fertilized emb...

Development of Endosperm In a fertilized embryo sac, the primary endosperm nucleus is generally observed below the zygote. It divides, and further divisions of its products gi

Hypocoagulation disorder and vitamin k deficiency, Which of the following p...

Which of the following patients likely faces the highest risk of an acquired hypocoagulation disorder and vitamin K deficiency? Answer A. A patient who is immunocompromised as a re

Explain fontan operation, Explain Fontan Operation ? The original Font...

Explain Fontan Operation ? The original Fontan operation was done in a case where classical Glenn operation had been done (end-Lo-end anastomosis of superior vena cava and lig

Cellulose, why can only one kind of cellulose be formed?

why can only one kind of cellulose be formed?

How can we determine solutions, How can we determine Solutions Solution...

How can we determine Solutions Solutions are a homogeneous mixture of two or more different substances. This means that the molecules of the dissolved substances (solute) and t

Define method used for capsular staining - anthony staining, Define method ...

Define method Used for Capsular Staining - Anthony Staining Method? Another method used for capsular staining is Anthony staining method, devised by E.E. Anthony in 1931. The m

Pregnancy - fungal infections, Pregnancy - Fungal Infections Amphoteric...

Pregnancy - Fungal Infections Amphotericin B is the preferred treatment for deep fungal infections during pregnancy. Fluconazole is teratogenic in animals and a same pattern of

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd