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Arabidopsis as a Model Organism

Arabidopsis as a Model Organism. By: Group 5 Allison, Leah, Mesha , and Hunter, Jordan. Arabidopsis Advantages. Easy and inexpensive to grow Able to sufficiently grow in small places fairly small, only reaching about 25cm Grows quickly, having a life cycle of about 6-8 weeks

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Arabidopsis as a Model Organism

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  1. Arabidopsis as a Model Organism By: Group 5 Allison, Leah, Mesha, and Hunter, Jordan

  2. Arabidopsis Advantages • Easy and inexpensive to grow • Able to sufficiently grow in small places • fairly small, only reaching about 25cm • Grows quickly, having a life cycle of about 6-8 weeks • Large variety of ecotypes

  3. Disadvantages of Arabidopsis • Since the genotypes are so similar, it is hard to distinguish the phenotypes • Pests are attracted to these plants • Aphids: small, soft-bodied insects with prominent mouth parts • Fungus Gnats: about 1/8 to 1/10 inch long, grayish to black, slender, mosquito-like, and delicate with long legs, antennae and one pair of wings. • Thrips: small, pale yellow, and active • Agar can get very contaminated by Fungi

  4. Vocabulary • Genotypes- an exact genetic description dealing with a single trait or with a larger set of traits • Phenotype- observable properties dealing with genetic and environmental factors

  5. Quick Flower Growth and Production • Increased photoperiod allows the seeds to grow and sprout faster • The best growth comes when the temperature is between 22-23⁰C

  6. The Purpose of a Flower • Flowers are reproductive shoots of flowering plant sporophytes • Sporophytes: Spore producing plant bodies that grow by mitotic cell divisions from a fertilizing egg

  7. Components of a Flower • Stamens:Male reproductive structures of floral shoots • Consist of an anther at the tip of a thin filament • Inside a typical anther are 2-6 pairs of pouches called pollen sacs • Pollen grains: spore structures that contain the male gametophytes • Gametophytes: structures in which male and female haploid gametes form

  8. Components of a Flower Cont. • Carpels: female reproductive parts of floral • Upper Region: a sticky or hair like stigma • Lower Region: a chamber in which one or more ovules form and eggs are fertilized • Ovule: A structure in which haploid egg-producing female gametophytes form • Pollination Vectors: any agents that deliver pollen grains to structure the house female gametophyte

  9. Works Cited • Kipp, E. Heat Stress Effects on Growth and Development in Three Ecotypes of Varying Latitude of Arabidopsis. Pace University Department of Biology and Health Sciences. • Sadava, David, David Hillis, William K. Purves, H. C. Heller, and Gordon H. Orians. Life : The Science of Biology. 8th ed. Boston: W. H. Freeman & Company, 2006. • Arabidopsis.org • Arabidopsis Lab Manual • Ohio State University Extension Fact Sheet • http://ohioline.osu.edu/hyg-fact/2000/2114.html • Dictionary.com • http://entomology.ifas.ufl.edu/fasulo/woodypest/thrips.htm

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