'Auxin' diaporamas de présentation

Plant Responses to the Environment

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Jeopardy

Jeopardy. Pictures. Tissues. Control System . Pot Pouri. Structure. Q $100. Q $100. Q $100. Q $100. Q $100. Q $200. Q $200. Q $200. Q $200. Q $200. Q $300. Q $300. Q $300. Q $300. Q $300. Q $400. Q $400. Q $400. Q $400. Q $400. Q $500. Q $500. Q $500. Q $500. Q $500.

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Cytoplasmic regulation lifetime localization initiation

Cytoplasmic regulation lifetime localization initiation. Post-transcriptional regulation mRNA degradation lifespan varies 100x Sometimes due to AU-rich 3' UTR sequences Defective mRNA may be targeted by NMD, NSD, NGD Other RNA are targeted by small interfering RNA.

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Plant Hormones

Plant Hormones. Plant tropisms. Growth in a particular direction in response to an external stimulus. Response to gravity is called gravitropism To light is phototropism To touch is thigmotropism Responses may be positive or negative. Early experiments. Canary grass coleoptiles.

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Sensory Systems in Plants

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Control Systems in Plants

Control Systems in Plants. Plant Hormones. Coordinates growth Coordinates development Coordinates responses to environmental stimuli. Plant Hormones. Auxin (IAA) Cytokinins Gibberllins Abscisic Acid Ethylene Oligogaccharins Brassinosteroids. Auxins. Stimulates stem elongation

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Plant Responses to Signals

Plant Responses to Signals. A weed is a plant that has mastered every survival skill except for learning how to grow in rows. - anonymous. External Signals. External signals are used by plant cells to alter their physiology, morphology and development, physical environment,

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Ch 39: Plant Responses to Internal and External Signals

Ch 39: Plant Responses to Internal and External Signals. Figure 38.4 Embryos Mobilize Their Reserves. Plant hormones. Hormone : chemical signals that coordinate parts of an organism; produced in one part of the body and then transported to other parts of the body; low concentrations

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Plant Growth

Plant Growth. Growth in Animals. Animals grow throughout the whole organism many regions & tissues at different rates. Growth in Plants . Specific regions of growth: meristems stem cells: perpetually embryonic tissue regenerate new cells apical shoot meristem growth in length

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Phyllotaxis : biological mechanisms

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Plant hormones and growth regulators

Plant hormones and growth regulators. Hormones Auxins Cytokinins Gibberellins (GA) Ethylene (ethene) Abscisic acid (ABA). Other growth regulators Brassinosteroids Salicylic acid (SA) Jasmonic acid (JA) Systemin. Plant Hormone: Auxin. Auxin role:

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Plant Growth Regulators (Hormones) include five categories of long-studied hormones auxins

Plant Growth Regulators (Hormones) include five categories of long-studied hormones auxins gibberellins cytokinins ethylene abscisic acid. AUXINS - includes more than one specific chemical - most well-studied = indole acetic acid (IAA).

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Plant Hormones

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Plant Hormones

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The redistribution of auxin during gravitropism in maize roots

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facebook

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Plant hormones

Plant hormones. B: Auxin Explain the role of auxin in phototropism and geotropism. Auxin and phototropism :. C: Plants are affected by both positive and negative tropism . Add notes in the boxes to show which if the geotropism and phototropism is positive/negative. Shoots :. Roots :.

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ACO

ethylene receptor. auxin responsive. auxin. responsive. ethylene receptor. 0,2. 0,2. 0,1. 0,1. 0. 0. 0,1. 0,1. 66. 66. 90. 90. 114. 114. 120. 120. 123. 123. -0,1. -. 0,1. 0. 0. -0,2. -. 0,2. 66. 66. 90. 90. 114. 114. 120. 120. 123. 123. -0,3. -. 0,3.

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