Question
Auxin can be bioassayed by
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Avena coleoptile curvature
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Hydroponics
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Potometer
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Lettuce hypocotyl elongation
Solution
A.
Avena coleoptile curvature
Auxin is a phytohormone that is often bioassayed by Avena coleoptile curvature test. The angle of curvature of a decapitated oat coleoptile is measured after placing an agar block containing auxin on one side. The ability of auxin to stimulate shoot growth is then measured.
