how can i make a good project on plant hormones?

Question

i want some interesting points

Answer 1

How many different kinds of plant hormones can you get hold of? You could either compare the effects of different hormones on plants or compare the effects of different dilutions of one kind of hormone on plants. For either project, I'd start with seeds of a species you are interested in, one that will germinate quickly. When the seedlings have grown to a particular size start the treatments (remembering that you have to have a control plant or plants that receive plain water, without added hormone -- this gives a baseline that you can compare the others with). You have to record all the details that you think will be useful. This might mean height, stem diameter, leaf number, time when flowering starts (if your project goes that long). You can graph the results or do some kind of mathematical analysis of the results.

Dwarf beans might be a good plant to use because they naturally lack the growth hormone that would make them tall. However, you'd have to work out how to measure height because the taller plants could begin to twine around things. Perhaps number of leaves, or distance between leaves at set intervals (eg, from 3rd to 4th leaf, 8th to 9th leaf etc.)

Answer 2

Plant hormones (or plant growth regulators, or PGRs) are internally-secreted chemicals in plants that are used for regulating the plants' growth. According to a standard definition, plant hormones are signal molecules produced at specific locations, that occur in very low concentrations, and cause altered processes in target cells at other locations.

Charactistics

* The concentration of hormones required for the plant response is very low(10-6 to 10-5M), comparing with the requirement of minerial and vitamin for plants.
* The synthesis of plant hormones is more diffuse and not always localized.
* Action at a distance is not a must for a plant hormone.

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Classes of Plant Hormones

It is accepted that there are five major classes of plant hormones:

1. auxins
2. cytokinins(CK’s)
3. ethylene
4. gibberellins (GA’s)
5. abscisic acid (ABA)

Additional suggested hormone classes:

1. brassinosteroids (BA’s)
2. jasmonates (JA’s)
3. salicylates (SA’s)
4. polyamines are major classes.
5. florigen
6. traumatic acid

Answer 3

Plant hormones (or plant growth regulators, or PGRs) are internally-secreted chemicals in plants that are used for regulating the plants' growth. According to a standard definition, plant hormones are signal molecules produced at specific locations, that occur in very low concentrations, and cause altered processes in target cells at other locations.

Charactistics

* The concentration of hormones required for the plant response is very low(10-6 to 10-5M), comparing with the requirement of minerial and vitamin for plants.
* The synthesis of plant hormones is more diffuse and not always localized.
* Action at a distance is not a must for a plant hormone.

Classes of Plant Hormones

It is accepted that there are five major classes of plant hormones:

1. auxins
2. cytokinins(CK’s)
3. ethylene
4. gibberellins (GA’s)
5. abscisic acid (ABA)

Additional suggested hormone classes:

1. brassinosteroids (BA’s)
2. jasmonates (JA’s)
3. salicylates (SA’s)
4. polyamines are major classes.
5. florigen
6. traumatic acid

Answer 4

What is a hormone?
As plants grow their genotype is expressed in the phenotype which is modified by the environmental conditions that they experience. Somehow the rates of growth and differentiation of cells in different parts of the plant are coordinated in response to these inputs.

There has to be communication between these levels: how does the plant receive and respond to environmental inputs or "signals"? What comunication is there inside the plant to adjust growth and development to the environment?

When growing plants commercially we can ask similar questions:

what environmental input will produce the kind of growth that we want?
or can we modify the growth by applying a chemical regulator?
can change the genotype to achieve the kind of growth we want (by traditional breeding or by genetic manipulation)?
The answers to each of these questions depends on an understanding of how plant growth is regulated. Hormones in animals cooordinate body functions by being produced in one place and acting in another. Plants do not have a circulatory system and "action at a distance" may not be a feature of plant hormones. They are molecules that are not directly involved in metabolic or developmental processes but they act at low concentrations to modify those processes.

There are five generally recognized classes of plant hormone, some of the classes are represented by only one compound, others by several different compounds. They are all organic compounds, they may resemble molecules which turn up elsewhere in plant structure or function, but they are not directly involved as nutrients or metabolites.


Charactistics
The concentration of hormones required for the plant response is very low(10-6 to 10-5M), comparing with the requirement of minerial and vitamin for plants.
The synthesis of plant hormones is more diffuse and not always localized.
Action at a distance is not a must for a plant hormone.

It is accepted that there are five major classes of plant hormones:

auxins
cytokinins(CK’s)
ethylene
gibberellins (GA’s)
abscisic acid (ABA)
Additional suggested hormone classes:

brassinosteroids (BA’s)
jasmonates (JA’s)
salicylates (SA’s)
polyamines are major classes.
florigen
traumatic acid

Answer 5

Well, you can start by telling what a plant hormone is, the differnecs between plant and animal hormone, the different types of plant hormones, their mechanism of action, how they help in growth and development. gibberelins, cytokinins, auxins, ABA, ethylene. their history. biosynthesis, metabolisma nd transport, functions of plant hormones