Contact Us
Sign In / Sign Up for FREE
Go to advanced search...

Paper on Arabidopsis cold responses - Essay Example

Comments (0) Cite this document
The Effects of Cold Stress on the Cor15a Promoter of Arabidopsis thaliana. Name: Institution: Instructor: Course: Date: Abstract Low temperature is among the most significant environmental factors that influence plant distribution, their growth, their development, and their survival…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER97.9% of users find it useful
Paper on Arabidopsis cold responses
Read TextPreview

Extract of sample "Paper on Arabidopsis cold responses"

Download file to see previous pages It is widely speculated that the products of these genes have roles in freezing tolerance. The aim of this experiment was to provide direct evidence that supports this hypothesis. It shows that expression of COR15a, which is a cold-regulated gene of Arabidopsis thaliana that encodes a chloroplast-targeted polypeptide, enhances the freezing tolerance of chloroplasts in nonacclimated plants. The Effects of Cold Stress on the Cor15a Promoter of Arabidopsis thaliana In 1985, Guy et al. established that transformations in gene expression occurred in plants during cold acclimation, which is a developmental mechanism that leads to increase in freezing tolerance. Since then, it has continuously been speculated that some COR (cold-regulated) genes might play roles in freezing tolerance. To investigate this notion, scientists have isolated and characterized genes expressed as a response to low temperature. This has led to the identification of a number of genes such as the cor15a, KIN1, and LTI78 genes of Arabidopsis thaliana; and the pt59 and pao86 genes of barley (“Genome research”, 1995). Arabidopsis thaliana is widely used in botany as the model organism for studying plant genetics and growth responses. This plant is a member of the mustard (Brassicaceae) family, which includes cultivated species such as cabbage and radish. Although Arabidopsis thaliana does not have any major agronomic importance, it has advantages that make it ideal for use in research in the fields of genetics and molecular biology. The first advantage of Arabidopsis thaliana that make it favorable for research is its small physical size, its fast growth rate, its capability in seed production, its genetic amenability to mutagenesis and transgenic approaches, and the widely available information on its genome. Secondly, Arabidopsis thaliana is well-suited for analysis with light microscopy. Its seedlings and their roots are translucent and smaller, thus they facilitate live cell imaging with fluorescence and confocal laser scanning microscopy. Lastly, Arabidopsis thaliana is the first plant genome to ever be sequenced. This was completed in 2000 by the Arabidopsis Genome Initiative (Stewart, 2008). Most plants react to low temperatures by altering their intracellular concentrations of free amino acids and carbohydrates, isozyme patterns, and the composition of their membranes. Moreover, in response to low temperatures, there is an alteration in the activity of many genes. Dr. Michael Thomashow of Michigan State University conducted studies on how plants respond to cold temperatures. He examined cold-induced genes in the plant Arabidopsis and cloned cor (cold related) genes. One of these genes, cor15a, is induced by cold temperatures, drought, and the hormone abscisic acid. Cor15a is a nuclear gene that encodes a 15 kDa protein. The function of this protein is unknown. This 15 kDa protein is translated to chloroplasts and it may have a function in plant protection from cold. (Baker et al., 1994) isolated a DNA fragment that contained a promoter region and a few amino acids from the cor15a gene. They then joined it to the gusA gene, thereby producing a cor15a-gusAtranslational fusion which was introduced into Arabidopsis thaliana using Agrobacterium. This reporter gene is used in monitoring the response of the cor15agene in varied plant tissues. In this laboratory investigation, transgenic ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Paper on Arabidopsis cold responses Essay Example | Topics and Well Written Essays - 1000 words”, n.d.)
Retrieved from
(Paper on Arabidopsis Cold Responses Essay Example | Topics and Well Written Essays - 1000 Words)
“Paper on Arabidopsis Cold Responses Essay Example | Topics and Well Written Essays - 1000 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Paper on Arabidopsis cold responses


... “ResponseResponse to Ross Drucker: To start off with I really liked the fact that you channelized your thoughts to such an important aspect of the beginning of the chapter “Joe.” I feel that even though I understood what it was about yet I did not mention it in my write-up. It was a very good move on Alvarez’s part to have started the chapter in a way that would have kept the readers engaged. Moreover, this way to begin the chapter also performed the role of stimulating the readers thought process and imagination, for example I started off by thinking that she was just hallucinating and it was only a little later that I started getting the hang of it. As far as the language is concerned, I felt it was not the language that hindered...
2 Pages(500 words)Essay


... “Jane Eyre” I had heard a lot about Jane Eyre as being a must read novel since my childhood and reading it just made me understand why people said that. I found the story very intriguing and in particular I felt that the characters were very well thought out and a lot of detailing had been done by the writer. The way the author has described the way of life back in those days, the mannerisms and etiquettes makes one feel as if he/ she has lived in those years and shares the feelings and experience. I felt that the casting done in the movies was excellent. Particularly in the 2006 version, I felt the characters exactly matched the characters described by the author in the book. Toby Stephens was portrayed as a very rich... “Jane Eyre” I had...
2 Pages(500 words)Essay

The Arabidopsis Myb Genes MYR1 and MYR2

...   The Arabidopsis Myb genes MYR1 and MYR2 are redundant negative regulators of flowering time under decreased lightintensity Flowering of plants is dependent on light intensity, light duration and quality of light. However there has no clear evidence of what actual effects light intensity has on flowering. In this essay I will identify the role of the Myb-Related Protein (MYR1) and Myb-Related Protein (MYR2) as inhibitors of flowering responses on reduced light intensity in Arabidopsis. Arabidopsis is a long day plant that flowers earlier than other plants in long day conditions than in short day conditions. In LD conditions flowering is affected by an increase in expression of the flowering locus T (FT). This gene expression...
3 Pages(750 words)Essay


...Discussion of the Presidential Biomedical Committee On January 17th, 2002, a group of scientists from the Presidential Biomedical Committee carried out a session entitled "Science and the Pursuit of Perfection", based on studying of a short story of Nathaniel Hawthorne "The Birth-Mark". This discussion proved to be very interesting and professional. An ensemble of experts has been analyzing the story not from only medical or biomedical points of view, but also from the positions of psychiatry, psychology, etc. They even addressed to historical outlines when talking about science of ancient Greeks. There are almost no points throughout the discussion, which I would disagree with. Especially, I liked the line in these debates... of the...
2 Pages(500 words)Essay


...Responses to Posts New knowledge can be gained from social interaction with others. (Chua, 2001). My new knowledge gained would help me generate my own findings on the subject matter and it is at this point that the originality of the proposed idea is actually revealed. At this phase of work, I would be able to make conclusions which give further credence to existing claims or introduce new claims which disprove existing ones. – Lola One strongly agrees that the new knowledge gained is immense and diverse as one collects information and analyzes the data in writing dissertations. Regardless of the academic level for which dissertations are required to be pursued, each unique writing experience gives the researcher ample opportunities...
2 Pages(500 words)Term Paper

2 responses paper

... Public Interest Law Response to the TSA Body Scanner Commentary According to the Rutherford institute commentary, the Transportation Security administration has adopted a policy that allows the body scanners to be used in fostering security. The technology allows those in the security department to view passengers as nude, regardless of the clothes they are wearing. However, the commentary presents the adoption of the technology as a move that intrudes into privacy of people, breaching the right to privacy of the American citizens. The commentary is assertive that people should not give up their right to privacy for the sake of fostering security amidst the mounting threats of terrorism. Acceptance of the technology is a way...
2 Pages(500 words)Case Study


... Response to Religious Revolution in Europe As traditions clashed and disagreed during the Reformation and Counter Reformation era, Christian history became a hotly disputed zone. Two eternal doctrinal questions emerged;” What must I do to get saved?” and where can I find the true church? “This essay responds to two posts concerned with the reformation of the Catholic Church by referring to Timothy George’s “Battle for the Past”. Post#1: In my opinion, historiography encountered during the reformation and Counter Reformation era produced a battle between the Roman Catholic Church and the new protestant religions. This is because through the humanistic approach employed by John Calvin and Martin Luther among others, they were able...
1 Pages(250 words)Essay

WE 7 AL&Resarch Paper Responses

...AL& Research Paper Responses al Affiliation Response to Familial DNA and the History of DNA by Douglas E Jackson, Jr. The paper has given comprehensive information regarding familial DNA with and the student has indicated a good grasp of DNA related issues. Indeed it is significant to note the aspect of crime and law enforcement in relation to familial DNA. However, privacy concerns related to familial DNA is too shallow. It is important to give privacy concerns a detailed touch considering that it is a crucial aspect in discussing familial DNA. It is worth noting, for instance that familial DNA searching tend to encroach on the privacy of relatives who are not even part of the crime. Fruits of DNA profiling have actually been incredible...
2 Pages(500 words)Essay


... research. Furthermore, citing of the sources makes the essay to be reliable. One of the major weaknesses of the essay is that it has generalized the issue. It did not go into details on the problems being discussed. The essay could have been sharper if the student used specific examples of errors that have occurred in the medical setting. The student could have cited books and journals to support the main ideas. A lot of research has been conducted concerning this topic. Therefore, there is an array of credible sources which could have been used to complete the essay. This could have given the author more information on the issue. What I learnt from this paper is that there are a lot of errors that are not being reported because many...
2 Pages(500 words)Assignment


...Response The question I consider worth exploring or writing a research paper about is, “Should spanking be considered child abuse?” This question needs to be analyzed in depth because consideration of child-spanking as child abuse raises many challenges for the parents. Parents are faced with the challenge of disciplining their children and raising them as decent children who understand societal norms and values and respect them, and yet in their attempt to achieve this, they can be held accountable for having “crossed the limits” if they merely spank their children. It is time for our laws to be changed for the better and place some confidence in the parents. Traditionally, researchers like Cook and Kopko (2014) have discouraged...
1 Pages(250 words)Assignment

Cold War: Account for the Rise and Fall of Detente

..., sullen bureaucracies, or outraged constituencies. To have found all of these things in place at the same time, we maintain, was about as likely as some rare astronomical conjunction of the stars and planets, or perhaps a balanced budget.”(Gaddis John Lewis) Going back into the past and defining the history of Cold War beginning it is impossible not to help concluding that the methods and ideas of confrontation were the base for policy of both blocks. That is why both sides are responsible for Cold War beginning. The Soviet historiography of Cold War became an integral part of the world historical science. The period of Cold war was a unique time that is characterized by many contradictory things. The end of Cold War made possible...
10 Pages(2500 words)Term Paper

Post-Cold War: Democratic Peace and Environmental Conflict

The two blocs attempted to prove that their ideologies were better and some of the significant issues they attempted to present their ideas on were liberalism, globalization, ethnic conflict, and democratic peace.

The ideologies of the Western bloc were pro-liberalism as they believed in having a free market or mixed economy and giving due rights to individuals. In contrast, the Eastern bloc fought in favor of a planned economy with everything under the authority of central power. One bloc treated global peace as a result of democracy while the other bloc presented views to suggest that democratic peace is an unattainable concept. These debates and issues became even more heated with the worsening global political situa...
12 Pages(3000 words)Term Paper

Observation Paper on Stress at a Local High School Football Game

...Observation Paper on STRESS at a Local High School Football Game Football is a high quality game which necessitates a lot of potentiality and management of various kinds of stress associated with the game. Stress can be defined as the organism’s total response to a particular environmental demand or pressure. Physical, and psychological( emotional and mental) pressures play vital roles in a high school football game as the players, the parents, other spectators, officials, coaches, and referees have to undergo a great amount of stress as the game is in progress. This large amount of stress can affect the normal behavior pattern of all the people involved in the game and people tend to be aggressive and pressure ridden, depending upon...
10 Pages(2500 words)Assignment

Thermodynamics in Warm and Cold Blooded Organisms

The second law of Thermodynamics states that usable energy will be lost when changed from one form to another (Mader, p100). Essentially, energy is heat and heat is energy. An example of this is metabolism in humans. Humans consume food which is converted through metabolic processes, specifically glycolysis, into the energy molecule ATP (adenosine troposphere). These ATP molecules are then used for energy by being converted to ADP (adenosine diphosphate), by losing a phosphate group. This is fundamentally how humans gain energy for life functions like maintaining core body temperature. This is an example of neither created or destroyed energy, but changing one form of energy into another. Most mammals achieve energy for heat in th...
10 Pages(2500 words)Case Study

James Madison's 51st Federalist Paper

If this theory was seriously followed, it would suggest that the citizens must opt for the president, the legislators, as well as the judges. However, the framers identified certain realistic problems in making all the offices elective. Especially, the judicial branch would face problems because the typical person does not have knowledge about what qualifications judges ought to have. Judges must have great capability, but also not have any political pressures. While federal judges are selected for life, their philosophy will not be inclined via the president who appoints them or the senators whose permission the president will take.

All the arguments were generated due to his past life as he was in an aristocratic fami...
6 Pages(1500 words)Term Paper

Comparison of the Cold War International System to the Current International System

An example is that of the Korean War (1950-53) which is said to transform the nature of the Cold War, while its initial impact was to solidify the division of the world into political, military, and economic spheres. Take Germany for instance where imperialism was a victim challenged by the historians for the destruction of the German Government along with its supporters used to conduct (Keylor, 2001, p. 44). That indicates economic expansion and territorial acquisition has always been a problem promoted since the First World War. Even in the 1920s, it was fashionable to declare the German empire on the threshold of the ‘Great War’ (Keylor, 2001, p. 44).

Europe in the global context remained tense and divide...
8 Pages(2000 words)Article

US Post Cold War Interventionism Foreign Policy

...Running head: US post Cold War interventionism foreign policy Lecturer presentation Introduction The interventionism foreign policy that United States adopted in the post Cold War era has left the country and citizens more insecure than ever before. Since the Second World War ended in 1945, the United States military has engaged in five major conflicts in different parts of the globe, which have inflicted heavy economic damage on the country and loss of numerous lives of the combatants and civilian populations. The country has spent billions of dollars, which unfortunately has not translated into tangible sense of security for American interests within and outside the country’s borders. There is strong and credible argument...
6 Pages(1500 words)Coursework

Oil Spillage in Cold Lake

... 14 hectare area footprint. Canadian Natural Resources Limited has gone further to describe the unnamed water body as a 1.5 meter deep shallow slough which has no fish. It is further not connected to any other water body. The most contested and argued resolution was to move the water body by receiving the government’s environmental order. This has been viewed as the least environmentally impactful step and offers the best approach that would contain the whole situation. On July, 2013, the Canadian Natural Resources Limited attributed the oil seepage to a mechanical failure at one of the old wells at the Cold Lake Air Weapons range. This paper in short tries to address the whole issue of the Oil Spillage at Clod Lake and evaluate...
15 Pages(3750 words)Term Paper

Very Cold and Very Hot Industry Hazards

...Very Cold and Very Hot Industry Hazards Very cold and Very Hot Industry Hazards According to Mager , a cold work place is described by the conditions that cause more than normal heat loss. Temperatures between 18-20°C would be considered cold. Cold work constitutes various industrial and occupational activities. In the food industry, they require to work under cold atmosphere that range between 2-8°C for fresh foods and below -25°C for frozen foods. Employees are working in freezing rooms or cold rooms useful in maintaining food and other preservatives fresh encounter numerous challenges in the course of executing their tasks. Workers get exposed to a number of hazards that may lead to various injuries or health effects...
9 Pages(2250 words)Literature review

Paper Cups versus Foam Cups

The most common name for foam cups is Styrofoam, which is the brand name for foam cups but for this essay, the foam will be used. The path taken by this paper will be to emphasize why foam cups are beneficial to the environment compared to paper cups. The paper will labor to emphasize that the emissions to the environment by foam cups are less compared to those of paper cups. The paper will use the different stages the two types of cups go through in the analysis of the environmental impacts.
To begin with, paper cups results in the degradation of the environment from the trees that are cut down for the manufacture of paper cups from paper, which is not the case in the production of foam cups as trees are not cut down in the...
15 Pages(3750 words)Term Paper
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Essay on topic Paper on Arabidopsis cold responses for FREE!

Contact Us