Term
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Definition
a chemical substance which is produced in one set of cells, transported and produces a response in another set of cells
only a minute quantity is required to produce a response |
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Term
| Auxins were first identified by |
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Definition
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Term
| Naturally occuring auxins |
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Definition
| IAA, 4-chlorol IAA, PAA, IBA |
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Term
| IAA full name, synthesized from |
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Definition
indole acetic acid
the best known naturally occuring auxin
primarily synthesized from tryptophan (an amino acid) |
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Term
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Definition
| 4-chlorol indole acetic acid |
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Term
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Definition
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Term
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Definition
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Term
| the two synthetically synthesized auxins are... |
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Definition
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Term
| NAA is a..., and its full name |
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Definition
a synthetically synthesized auxin
naphtaleneacetic acid |
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Term
| 2,4-D is a... and its full name |
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Definition
a synthetically synthesized auxin
2,4-Dichlorophenoxyacetic acid
roundup |
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Term
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Definition
seeds, young leaves, flushing buds
seeds generate auxins, auxins generate fruit |
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Term
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Definition
- auxin transport is basipetal, from terminal bud to base
- acropetal in leaves, from node to tip |
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Term
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Definition
stimulation of:
cell elongation
differentiation of vascular tissues
cambial activity
ethylene synthesis
apical dominance signalling
tropism (gravitropism, phototropism) |
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Term
| cytokinins were oringinally isolated when and from what |
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Definition
| in the 1960's from adenine |
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Term
| the two naturally occuring cytokinins are |
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Definition
N6 adenine derivatives phenyl urea compounds
Zeatin (the most common form) |
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Term
| cytokinins were oringinally isolated when and from what? |
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Definition
| in the 1960's from adenine |
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Term
| the synthetic cytokinins are (3) |
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Definition
kinetin
BAP ( 6 benzylaminopurine)
isopentenyl adenine |
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Term
| cytokinins area of synthesis |
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Definition
mainly the roots
also in seeds, fruits, and young leaves |
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Term
| cytokinin transport is through |
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Definition
| the xylem, and is non-polar, |
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Term
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Definition
stimulate:
cell division
shoot formation
delay senescence in leaves
release lateral buds from apical domincance |
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Term
| Ethylene is a... isolated from... |
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Definition
| a gas (C2H4) synthesized from amino acid |
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Term
| ethylene area of synthesis |
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Definition
| various cells and tissues undergoing senescence (getting old) and under stress |
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Term
| ethylene transportation method |
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Definition
ethylene is a gas so transport is fast and by diffusion from the synthesis site through intracellular space
highly affective of surrounding plant/leaf structures once produced |
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Term
| ehtylene triggered responses |
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Definition
promotes fruit ripenins
triggers leaf and flower senescence
leaf and flower abscission |
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Term
| Abscisic acid ABA, is synthesized from , and has what structure |
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Definition
synthesized from mevalonic acid
has a complex ring structure |
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Term
| abscisic acid synthesis site |
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Definition
| synthesized in mature leaves,(especially in response to stress), seeds and fruits |
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Term
| abscisic acid transportation method |
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Definition
| primary transport occurs in the phloem, but also may occur in the xylem |
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Term
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Definition
stimulates
stomata closure
photosynthate transport from leaves to developing seeds
triggers protein storage in seeds
embryogenesis
maintenance of bud and seed dormancy
also promotion of senescence with ethylene |
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Term
| Gibberelins have over __ ? naturally forms from plants, |
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Definition
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Term
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Definition
in young shoots
and developing seeds |
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Term
| gibberelins transports in the |
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Definition
| in both the xylem and phloem |
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Term
| effects of gibberelin responses |
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Definition
stimulates
shoot elongation
induction of seed germination
flowering (particularly in long-day plants and biennials) |
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Term
| Gibberelins are synthesized from what? |
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Definition
mevalonic acid
(just like abscisic acid!) |
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