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Indoleacetic acid movement in the root cap

โœ Scribed by J. J. Pernet; P. E. Pilet


Publisher
Springer-Verlag
Year
1976
Tongue
English
Weight
165 KB
Volume
128
Category
Article
ISSN
0032-0935

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๐Ÿ“œ SIMILAR VOLUMES


Transport of indoleacetic acid in intact
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Indoleacetic acid (IAA)-5-(3)H (2ร—10(-9)) was applied to intact roots of Phaseolus coccineus seedlings at the apex or 2 cm above the apex, and the movement of IAA-(3)H and its metabolites traced by sectioning and chromatography. Basipetal movement of label occurred for 2 cm or less, declining expone

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A large population of primary roots of Zea mays (cv. LG 11) was selected for uniform length at zero time. Their individual growth rates were measured over an 8-h period in the vertical position (in humid air, darkness). Three groups of these roots with significantly different growth rates were then

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The occurrence and distribution of abscisic acid (ABA), xanthoxin (Xa) and the carotenoid violaxanthin (Va) were investigated in root tips of maize (Zea mays L. cv. Merit). In roots grown in the dark, Va and ABA were present in relatively high amounts in the root cap and in low amounts in the adjace

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The length of the maize root cap differs significantly from one root to another. The gravireaction of roots appears to depend upon the cap length; when it is smallest, the downward curvature is lowest. Using a freezing technique, it was possible to destroy a part of the root cap and to observe that

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Roots of the agravitropic pea (Pisum sativum L.) mutant, ageotropum, responded to a gradient in water potential as small as 0.5 MPa by growing toward the higher water potential. This positive response occurred when a sorbitol-containing agar block was unilaterally applied to the root cap but not whe