'Abscisic acid' diaporamas de présentation

Abscisic Acid:

Abscisic Acid:. A Seed Maturation and Antistress Signal. Contents. Occurrence, Chemical Structure , and Measurement of ABA Biosynthesis, Metabolism, and Transport of ABA Developmental and Physiological Effect of ABA. Abscisic Acid (ABA).

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Concept 39.2: Plant hormones help coordinate growth, development, and responses to stimuli

Concept 39.2: Plant hormones help coordinate growth, development, and responses to stimuli. Hormones are chemical signals that coordinate different parts of an organism. The Discovery of Plant Hormones.

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Plant Responses

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Leaf anatomy

Leaf anatomy. Leaf anatomy. Leaves start as outgrowths from apical meristem: leaf primordia. Leaf anatomy. 3 primary meristems protoderm: becomes __________ procambium: becomes ___________ ground meristem: becomes ____________. Leaf anatomy. Epidermis: note cuticle, stomata

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Plants

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Plant Physiology and Soils Basic Botany Fall 2007

Plant Physiology and Soils Basic Botany Fall 2007. Brooke Wheeler. Saturday September 22. Reading quiz Plant physiology Short break (talk with project group) Soils- play with dirt Transpiration lab. Plant Physiology. Plant hormones Plant growth and trophisms Photosynthesis.

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The roles of plants in the environment

The roles of plants in the environment. The Biosphere Depends on Plants. Cellulose: a large and complex carbohydrate We cannot digest it but can use it in different ways Examples: grass for cattle, Cottons, fabrics, paper, cardboard. 2. Plants as a Food Source.

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Chapter 24

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Lecture 5 Plant hormones and Signal transduction

Lecture 5 Plant hormones and Signal transduction. PLSC 452/552 1/23/14 Department of Plant Sciences Neal Stewart Lab. Brain teaser .

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Outline

Outline. Plant Responses Tropisms Nastic Movements Plant Hormones Auxins Gibberellins Cytokinins Abscisic Acid Ethylene Photoperiodism. Plant Responses. Tropisms Plant growth toward or away from a unidirectional stimulus is called a tropism Positive is towards stimulus

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Signaling

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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: _____________ stem cells: perpetually embryonic tissue regenerate new cells ___________________ growth in length

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Chapter 40: Sensory Systems in Plants

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Plant Hormones

Plant Hormones. Plant Hormones. Hormone: is a chemical messenger produced in one part of the body that affects activities in another part of the body. These are three of the most discussed: Auxins , Gibberellins and Abscisic Acid. 3. Auxins.

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Plants 2

Plants 2 Read 422-464 Study for Test next class NR 4 due in a week(ish) Review: Gymnosperms: Mainly conifer trees, naked seeds, thick bark Eudicots (Angiosperms): Flowering plants, branched veins, 4/5 petals Monocots (Angiosperms): Flowering plants, parallel veins, 3 petals Defense

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Other Plant Hormones

Other Plant Hormones. Gibberellins. There are now more than 60 known gibberellins. These cause rapid growth of the internodes on stems. The internode is the region between the points where the leaves are attached.

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Plant Hormones

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Abscisic Acid

James Jordan April 3 2002. Abscisic Acid. History And Discovery of Abscisic Acid. Abscisic acid or ABA was found identified 1953 by Bennet-Clark and Kefford as an inhibitory compound. In 1963 the substances was crystallized and purified. It was then named Abscisic Acid by Ohkuma.

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Plant Hormones & their Effects

Plant Hormones & their Effects. AP Biology. Auxin. Found : Embryo of seed, meristems of apical buds, young leaves Major Functions - Stimulates stem elongation root growth, cell differentiation, and branching - Regulates development of fruit - Enhances apical dominance

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Small molecule hormones link the environment to development

O. H. O. H. O. O. O. O. H. O. H. H. O. H. H. H. O. O. H. H. H. C. H. 3. H. O. O. O. H. O. O. H. H. N. H. C. C. H. H. H. O. O. O. H. O. H. H. N. H. O. H. N. N. O. O. H. N. N. H. Small molecule hormones link the environment to development.

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