The Effect Of Gibberellic Acid On Wild Type And Rosette Brassica Rapa Plants

802 words - 3 pages

The Effect of Gibberellic Acid on Wild Type and Rosette Brassica rapa Plants

This experiment was performed to test two hypotheses concerning the plant hormone gibberellic acid and a mutant rosette shaped phenotype of the plant Brassica rapa. This experiment was done in order to test the effects o gibberellic acid on plants and its effect on rosette shaped complexes. The two hypotheses in this experiment are as follows: Hypothesis number one states that Gibberellic acid allows for stem elongation in plants. Hypothesis number two. The rosette complex in the rosette phenotype plant contains less gibberellic acid naturally and therefore grows shorter.
Plant hormones are certain chemicals present in plants that control plant growth and development by affecting the division, differentiation, and elongation of cells. (Campbell, 2008) Each hormone has multiple effects depending on its site of action, its concentrations, and the developing stage of the plant. (Campbell, 2008) Auxin is a plant hormone that is synthesized within the apical meristems and young leaves of a growing plant. Auxin stimulates stem elongation when it is present is low concentrations. It promotes the formations of lateral and adventitious roots, regulates development of fruit, enhances apical dominance, functions in gravitropism and phototropism, promotes vascular differentiation, and retards leaf abscission. Gibberellic acid is one of several plant hormones that govern a plant’s growth. Gibberellins allow for stem elongation in plants. Plants without enough of this hormone tend to grow short or stunted. This chemical is high in the element potassium, which is one the main components of plant fertilizer and very important for plant growth on its own. There are many plant hormones that affect the plant during its growth. Among these are auxins, gibberellic acids, cytokinins, brassinosteroids, Abscisic acid, and ethylene. These not only affect the plant in their specific ways, they also have different effects when they are present in certain ratios with the other chemicals. Plant hormones maintain a delicate balance, and this experiment serves to observe that balance (Campbell and Reese, 2008).
There were two types of plants used. Both were of the same species, Brassica rapa but two of the plants contained rosette shaped complexes that were deficient in producing gibberellic acid compared to the wild-type plants. Therefore, they grew smaller and shorter as a phenotype....

Find Another Essay On The Effect of Gibberellic Acid on Wild Type and Rosette Brassica rapa Plants

Investigating the effect of varying concentration on the reaction between magnesium ribbon and hydrochloric acid

1903 words - 8 pages Investigating the effect of varying concentration on the reaction between magnesium ribbon and hydrochloric acid Aim It is to tell how the reaction between magnesium and hydrochloric acid will be effected if we change the concentration of hydrochloric acid. Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq

The Effect of Acid Rain on Plant Growth

669 words - 3 pages immediate impact and prolonged damaging to the plant life. The different levels of pH, type of acid, and the previous exposure of the plant life determines the effects of the rain. Effects of acid rain are numerous and include: deterioration of the surfaces on the plants leaves, impairing of the plants ability to with stand extreme temperatures, and the plants ability to germinate. Any of the effects can prove to be fatal for the individual plant

Acid rain and the effect it has on our environment

944 words - 4 pages combustion. Only 3.7 percent is caused by transportation . The other chemical that is also chiefly responsible for the make-up of acid rain is nitrogen oxide. Oxides of nitrogen is a term used to describe any compound of nitrogen with any amount of oxygen atoms. Nitrogen monoxide and nitrogen dioxide are all oxides of nitrogen. These gases are by-products of firing processes of extreme high temperatures (automobiles, utility plants), and in chemical

Type of amino acid

834 words - 4 pages amino acids can be found in almost all proteins and it is divided into three major groups which are differentiating based on their characteristics. Kundu (2005), in their study on the amino acids network within protein states that protein structures is made of three classes of amino acids, known as hydrophobic (non-polar), hydrophilic (polar uncharged) and polar charged (refer to Figure 1 in Appendix 1).     The first type of amino acids is non

Effect of acid rain on Pea growth

3366 words - 13 pages Untitled Effect of acid rain on Pea growth Background: Mostly everyone has heard about acid rain and knows it can cause damage to some extent. Normally rain water has a pH of 6.0. However acid rain is around 4.5 to 5.5. Acid has serious effects on plants and all sorts of things on earth. It can damage the roots of the plants causing stunted growth or even kill the plants. The main causes of acid rain are the release of

Grade A Lab Report on The Effects of Acid Rain with the Germination of Pea Plants Including 2 data charts

1190 words - 5 pages Acid Rain LabAcid rain is causing problems throughout the world. Acid rain is precipitation that has been combined with gases in the atmosphere, causing it to be slightly more acidic than normal rain. Acid rain has a PH level of about 5.0 compared to that of pure water's 7.0. Acid rain is caused uniquely by human from such harmful wastes as the burning of fossil fuels. This type of rain is carried throughout the atmosphere, for hundreds of miles

The Extent To Which Acid Rain and Air Pollutants Affect the Height and Total Leaf Area of Peanut Plants

1363 words - 5 pages absorbed through the roots. Therefore, nitrogen can be placed into the soil rather than using an air chamber to expose the plants to nitrogen. Another study, preformed by James D. Ownby and Lyndon Dees, proposes that one of the major anions in acid rain, nitrogen, is a source of essential plant nutrients, and that “the net effect of acid precipitation on plant growth will thus depend on the benefit gained from [nitrogen] relative to the deleterious

Effect of pH and Acid Phosphatase

1371 words - 5 pages The practical was carried out to investigate the effect of pH on the reaction of the enzyme acid phosphatase. Of the many functions of proteins, catalysis is by far the most vital. When catalysis is not present, most reactions in the biological systems take place very slowly to produce at an adequate pace for metabolising organism. The catalysts that take this role are called enzymes. Enzymes are the most efficient catalysts; they can enhance

The effect of concentration on a reaction rate with hydrolic acid over the magnesium chip

2498 words - 10 pages The effect of concentration on a reaction rateAim: In this experiment I have been offered a choice to investigate absolutely anything that I desire to see the diverse effects therefore I have decided to investigate the concentration of the hydrochloric acid with the magnesium chip. I will be altering the concentration of the acid to explore the rates at which it reacts with magnesium, and to see at which concentration more quantity of hydrogen

The effect of the salt concentration of water on the productivity of Lupin plants over a fortnight

916 words - 4 pages Aim: The effect of the salt concentration of water on the productivity of Lupin plants over a fortnight.Hypothesis: Lupin plants that are watered with more salt will be least productive because an increased salt concentration in the water increases the osmotic gradient, which makes it difficult for plants to absorb water needed for photosynthesis, therefore they will be less productive and will die faster than plants watered with water with a

The effect and causes of Acid Rain and what can be done to reduce those causes!

3296 words - 13 pages infect the tree through its injured leaves. Once weakened, trees are more vulnerable to other stresses, such as insect infestations, drought, and cold temperatures.Naturally the reduction of plants is causing the biological food chain to weaken. As smaller animals and insects feed on these plants lose their food supply, they may also ensue death. In effect the animals which feed off of these animals also ensue a decrease in their supply. In turn

Similar Essays

The Effect Of Color On Wild Brassica Plants

761 words - 3 pages The Effect of Colored Covering on the Growth of Wild Brassica Plants The purpose of this project was to determine if different colored lighting had an effect on the growth of the wild type of Rapid-cycling Brassica plant. Rapid-cycling plants were used in this study because their lifespan is relatively short. These plants can complete their entire life cycle from seed to seed in 35 days (Morgan and Carter, 1999). This enabled a finding to the

The Effect Of Gibberellic Acid On A Plant's Growth

633 words - 3 pages will stimulate the elongation of stems in two types of plants: wild-type and rosette mutant. The prediction was that the plants treated with GA would have a longer stem, than the plants that are treated with water.MethodsThe hypothesis was tested using two different types of Brassica Rapa plant. One type is a normal wild-type plant, other is a rosette mutant. The experiment was begun by filling up a four chambered container with a soil and adding a

Exploring The Effects Of Gibberellic Acid On The Germination Of Cereal Grains

2177 words - 9 pages a fridge over night. Now they are ready for use. The apparatus needed for the next part of the experiment is listed below. Apparatus: • 11 Starch-agar Petri dishes • 11 Beakers • 1g dm-3 solution of gibberellin (gibberellic acid). • Cereal Grains (Barley seeds) • 10g dm-3 starch solution • Potassium iodide solution • Measuring cylinder • Pipettes • Forceps • Scalpel and tile • Incubator • Water bath • Acetate graph paper (1mm x 1mm

Expirment: The Effect Of Light On Growing Plants

705 words - 3 pages effects on the plants as it did with medium power wattage.Conclusion:In conclusion light quality does have an effect on plant growth. Our prediction was correct as shown by the experiment the plant with the white bulb had the most growth. We were wrong in our prediction about the blue light, which had the least amount of growth, while the red light had the second best results. We also were wrong about our assumptions that the blue and red lights may not give enough light and the plants might die. This experiment shows how plants grow at different periods throughout the day because there are different qualities of light from sunrise to sunset.