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Lettuce seed germination is a typical photoreversible response controlled by phytochrome ... each monomer consists of two components: chromophore apoprotein ...
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Ecological significance of the R:FR ratio. Shade avoidance response ... After Quail et al. 1995. 8. BIOL754 Fall 08. How does phytochrome mediate responses ...
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Both the Maryland Mammoth and soybean flowered much earlier than the control plants. ... As for Maryland Mammoth, its seed crop was soon being grown in the fields of ...
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Light-grown phyB mutants are elongated. and early flowering ... After Quail et al. 1995. 8. BIOL754 Fall 07. How does phytochrome mediate responses ...
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Photomorphogenesis: 1) phytochrome-mediated development phytochromes - absorb red and far-red light (appear blue) may: trigger seed germination cause deetiolation of ...
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Plant Responses to Internal and External Signals Plant Hormones Plant Movements Control of Daily and Seasonal Responses Phytochromes Plant Hormones Hormone-compound ...
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... (24 hour periodicity) Photoperiodism (phytochromes) Short-day plant: light period shorter than a critical length to flower (flower in late summer, ...
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cyr2 is late flowering under long day conditions. Col. cry2. 11. BIOL. 350 Spring 08 ... Regulation of flowering time. Co-action with phytochromes ...
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Location: ripening fruit tissue; stem nodes; aging leaves and flowers ... Critical night length controls flowering. Phytochromes ...
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Effect of temperature drop on shoot elongation and hormone balance ... Microscopy of Norway spruce material with phytochromes with fluorescent label (GFP) ...
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Light regulation of plant development ... Chloroplast movement 3) Stomatal opening See also lecture on auxin effects on plant development.
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Title: Lecture #17 Date _____ Author: Chris Hilvert Last modified by: s.moser Created Date: 2/12/2001 3:39:05 PM Document presentation format
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Lecture Date _____ ... germination of seed and bud; stem elongation; leaf growth ... growth/development of roots, leaves, and flowers; senescence Daily and ...
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AP Biology Chapter 39 Plant Responses to Internal and External Signals Plant hormones Hormone: chemical signals that coordinate parts of an organism; produced in one ...
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Photoperiodism, Gravitropism, and Thigmotropism AP Biology Unit 5 Photoperiodism How a plant responds (with respect to flowering) to the relative amount of light ...
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Plant Responses (tropisms) Chapter 39 At every stage of life plants are responding to their environment. Flowers following the sunlight (phototropism) Curling ...
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Biology 172 Chapter 39 Plant Responses to Internal and External Signals Light and Etiolation Signal Transduction Signal Transduction and De-etiolation Additional ...
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Plant Responses AP Biology Chapter 39
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Title: video Author: BCP User Last modified by: Sally Created Date: 7/11/2002 5:04:39 PM Document presentation format: On-screen Show (4:3) Company
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Chapter 39 Plant Responses to Internal and External Signals Shawn Koshy Peter Jandovitz Jason Lee Cody Pickel Edwin Mathieu Gravity Gravitropism is a response to gravity.
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Light perception in plants. Because plants do not enjoy the luxury of being able to change their environment ... LFRs in bioelectric potentials and ion distribution ...
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Ion fluxes between flexor and motor cells. FIG 17.19. 17. Shade Avoidance ... Simple and compound leaves. Flexor, motor cell and ion flux roles in leaf dropping ...
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... phytohormones * Shade avoidance syndrome Plants adapt to changes in light conditions -Shade Avoidance Syndrome- R/FR = photon fluence rate in 10 nm band ...
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Chapter 39 Plant Responses to Internal and External Signals * * * Figure 39.17 Inquiry: How does the order of red and far-red illumination affect seed germination?
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... plants cycle at about every 26 hours Light keeps the biological clock set to about 24 hours jet lag may occur in all eukaryotes Plant Defenses Defenses ...
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Discovery of Plant Hormones. Classes of Plant Hormones. Auxins. Cytokinins. Gibberellins ... long-day plant flowers when daylength increases ...
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... Pathways A hormone binds to receptor and stimulates secondary messengers which Activates cell responses Plant Movements Phototropism Gravitropism Thigmotropism ...
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Chapter 38 Angiosperm Reproduction Angiosperms have 3 unique Features: Flowers Fruits Double Fertilization (by 2 sperm) REPRODUCTIVE VARIATIONS Pollination: transfer ...
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Several flowering plants use the pigment phytocrome to sense seasonal changes in ... Cactus spp. Rosaceae Buds. Poppy. Cannnabis. Peyote. Long Day Plants ...
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Ch. 39 Warm-Up Elaborate on the ... Signals Experiments with Light and the coleoptile Excised tip placed on agar block Growth-promoting chemical diffuses into agar ...
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Help needed for the Art & Science Day at the Chester Street Elementary school 110 Chester St, Kingston
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Pr: red-light absorbing form of phytochrome, The Pr solution is in blue color ... Se5 is a photoperiod-insensitive early flowering mutant of rice, a SD plant ...
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Title: 5 Author: b Last modified by: User Created Date: 3/9/2004 6:22:20 AM Document presentation format
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... an antisense copy of the gene has been used to create transgenic tomato -These stay fresh longer Abscisic Acid Abscisic acid is synthesized mainly in mature ...
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Control Systems in Plants Ch. 39 A grass seedling growing towards light
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... Chapter 25: Plant Responses to the Environment Plant Hormones: 4) Ethylene ... Plant Responses to the Environment Hormonal Regulation of Plant Life Cycle: ...
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an easy online 'textbook' like this: http://www.hcs.ohio-state.edu/hcs300/signal. ... Listen and watch in class, especially when we have videos (http://sunflower.bio. ...
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Plant Response to Stimuli Stimuli and a Stationary Life Plants, being rooted to the ground Must respond to whatever environmental change comes their way For example ...
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'The emission of a longer wavelength radiation by a substance as a ... http://www.uhaul.com/supergraphics/rocks/fluorescence.html. Theory of Fluorescence ...
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Plant Responses to Signals
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Title: Slide 1 Author: Heba Mohamed Adel El-Bialy Last modified by: Heba Mohamed Adel El-Bialy Created Date: 4/14/2006 1:23:11 AM Document presentation format
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Evolution of plants cont d. Movement from water to land Why? - more light - CO 2 more abundant - no competing life forms
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... amounts in one part of an organism and sent to other parts where it binds to a receptor and triggers responses Auxin a hormone ... water Abscisic Acid ...
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Slide 1 ... Plant Responses
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Col cry2 hy4. Low. Irra. Col cry2 hy4. cyr2 is relatively insensitive. to low irradiance blue light ... Col. cry2. 13. BIOL754 Fall 07. Functions of the cryptochromes ...
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Location: seed embryo; meristems of apical buds and young leaves ... in the shoot can be induced to differentiate into the meristem of a new root. ...
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Cellular Respiration All Organisms CH2O + O2 CO2 + H2O + Energy Oxidizable Organic Molecule ...
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Chapter 39: Plant responses to internal & external signals Plants= sessile must respond to environmental changes/cues by adjusting patterns of growth & development
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the ability of the plant to respond to different lengths of light treatment ... Chenopodium alba 'lamb's quarter' Bud Dormancy. Wareing (1950's) Fagus beech tree ...
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A. tropism - growth response that results in curvature of a whole organ toward ... 3. thigmotropism - response to touch. B. turgor movements ...
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IX. Reproductive Structures of Flowering Plants A. Sporophyte 1. Growth Mitotic division of a fertilized egg 2. Flowers Gametophytes Sperm Eggs A.
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Many have multiple effects in the plant. Many are produced in more than one part of ... Thigmotropism. Leaves may close (mimosa) Reponses to light. Phototropism ...
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biosynthesis. photosynthesis. phototropism. photorespiration ... Proposed Phy-regulated Transcriptional Network. PIF1. chlorophyll. biosynthesis. PIF4 ...
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... Binds to a protein receptor at target site Triggers a signal transduction response at target cells/tissues Tropism Tropism = Growth pattern in response to an ...
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