Arabidopsis

plant pillow. Sunlight is not available however, it can be replaced by LEDs to give the plants energy. LEDs (light emitting diodes) produce light when it conducts an electric current. The following plants are examples that have been grown in space: Arabidopsis (Thale Cress), Mizuna lettuce, Super dwarf wheat, Apogey wheat, Bassica rapa (Oilseed), Rice, Tulips, Kalanchoe (tropical flowered plant), flax, peas, radishes, garlic, cucumbers, parsley, and dill. Everyone has to use the bathroom, even…

stranger’s roots competed against each other. But, how did the searockets identify their kin, perhaps by using chemical signals? To find answers, Dr. Dudley and her research team conducted a second experiment using Arabidopsis as the plant research subject. They placed two Arabidopsis siblings in water, but blocked off their ability to produce chemical signals. The seedlings ramped up root growth and began competing against each other as if they…

APX2 as a Scavenging Mechanism for Superoxides in Chloroplast Mohammed Shilleh, Michael Stefano, Jacqueline Watkins, Kelsey Wyman Chin BSC4936 University of Florida APX2 as a Scavenging Mechanism for Superoxides in Chloroplast Introduction and Background Stress can be defined as a disruption of homeostasis. Chloroplasts are especially sensitive to stress and have many levels of defense against it. These defense mechanisms include adjustment of antenna size, thermal dissipation, photochemistry…

Recombination and mutation are the motivation of evolution. Recombination is critical for repairing DNA lesions and for chromosomal pairing, and exchange during meiosis (Krejci et al. 2012). Recombination does not occur uniformly on the chromosomes of eukaryotes. Meiotic recombination in well studied yeast revealed that non-uniformity of recombination was observed when the frame of reference is an entire chromosome, multigene region and a pair of genes or a small region upstream of a gene…

Restriction enzymes are used to manipulate DNA sequences to create recombinant DNA by first cutting up the foreign DNA in order to protect the bacteria cell against invading DNA from other organisms. The enzyme is very specific when it comes to identifying a specific DNA sequence. When the enzyme identifies the specific DNA sequence it cuts both DNA strands at specific points at the restriction site. Lastly, the DNA ligase joins the DNA from two different sources and produces a recombinant DNA…

Identification and characterization of differentially expressed gene(s) in pigeonpea genotypes in response to Helicoverpa armigera infestation Pigeonpea [Cajanus cajan (L.)millspaugh] is an important food legume predominantly cultivated in the tropical and subtropical regions of Asia and Africa almost exclusively as a rainfed crop. It is a diploid (2n = 22), often cross-pollinated crop with a genome size of 833.07 Mbp (Varshney et al., 2012). Globally, it is cultivated on an area of 4.92 M ha…

Modern biotechnology is truly astonishing; the technology has extended our carrying capacity far beyond our limits by eliminating devastating diseases, provided life saving pharmaceuticals, as well as solutions for agriculture sustainability for a population expecting to reach 9.5 billion individuals by 2050. Agriculture sustainability is a global concern, which affects each organism on this planet. Hence, as an advanced society we must invest on our current technologies to provide food…

Biochemistry is the “structure and function” within living organisms through chemical processes (Revier). Being able to master the subject is a driven force that grasped my attention to continue pursuing my academics through this major. My interest for the subject grew as I conducted further research to determine the benefits of having a degree in biochemistry and how it would aid me in the long runs by having a successful future. Simultaneously, I enrolled in an Introduction to Biochemistry…

Chitin is the second most abundant natural polysaccharide consisting of β(1→ 4)-linked N-acetyl-D-glucosamine (GlcNAc) units in a linear form. Chitin is insoluble in water and mainly exists in two crystalline (α- and β-) forms. The α-chitin consists of sheets of tightly packed alternating parallel and antiparallel chains (1) and is abundant in the exoskeleton of arthropods, insects, fungi, and yeast cell walls. The chains are arranged in parallel orientation in β-chitin (2), which occurs less…

CHAPTER-2 VARIABILITY AMONG THE ALTERNARIA BRASSICAE ISOLATES INTRODUCTION The chapter is mainly concerned with examining the variability among Alternaria brassicae isolates from the oilseed brassicas. Since, the oilseed brassicas are more prone to the fungal attack and thereby, resulting in reduced productivity of the oilseed. Therefore, the present investigation focuses on the studying the features such as morphological, pathological and molecular variability of Alternaria brassicae. The…