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Ethylene plays multiple nonprimary roles in modulating the gravitropic response in tomato.
Ethylene is known to interact with auxin in regulating stem growth, and yet evidence for the role of ethylene in tropic responses is contradictory. Our analysis of four mutants of tomatoExpand
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Normal and Abnormal Development in the Arabidopsis Vegetative Shoot Apex.
Vegetative development in the Arabidopsis shoot apex follows both sequential and repetitive steps. Early in development, the young vegetative meristem is flat and has a rectangular shape withExpand
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Indole-3-acetic acid levels after phytochrome-mediated changes in the stem elongation rate of dark- and light-grown Pisum seedlings
The effect of red (R) and far-red (FR) light on stem elongation and indole-3-acetic acid (IAA) levels was examined in dwarf and tall Pisum sativum L. seedlings. Red light reduced the extension-growthExpand
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The forever young gene encodes an oxidoreductase required for proper development of the Arabidopsis vegetative shoot apex.
In plant development, leaf primordia are formed on the flanks of the shoot apical meristem in a highly predictable pattern. The cells that give rise to a primordium are sequestered from the apicalExpand
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High-resolution mapping and genetic characterization of the Lazy-2 gravitropic mutant of tomato.
Mutation of the Lazy-2 (Lz-2) gene in tomato (Lycopersicon esculentum mill.) produces a phytochrome-dependent reversal of shoot gravitropism, providing a unique genetic resource for investigating howExpand
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14 Development of the Vegetative Shoot Apical Meristem
The Arabidopsis shoot apical meristem starts as a tiny group of fewer than one hundred cells, yet this small group of cells is the source of the aboveground portion of the plant. This simple factExpand
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Physical basis for altered stem elongation rates in internode length mutants of Pisum.
Biophysical parameters related to gibberellin (GA)-dependent stem elongation were examined in dark-grown stem-length genotypes of Pisum sativum L. The rate of internode expansion in these genotypesExpand
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Genetic analysis of the role of gibberellin in the red light inhibition of stem elongation in etiolated seedlings.
Red light causes a reduction in the extension growth of dark-grown seedlings. The involvement of gibberellin in this process was tested by screening a number of gibberellin synthesis and gibberellinExpand
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PHYTOCHROME REGULATION OF STEM GROWTH AND INDOLE‐3‐ACETIC ACID LEVELS IN THE lv AND Lv GENOTYPES OF Pisum
Phytochrome influences stem elongation and the mechanism for this is not understood. The levels of indole‐3‐acetic acid (IAA) were analyzed in an leLv genotype of Pisum sativum L. which responded toExpand
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The role of indole-3-acetic acid in mediating changes in stem elongation of etiolated pisum seedlings following exposure to light
The exposure of dark-grown seedlings to light results in a dramatic decrease in the rate of stem elongation, which is one of the many facets of the phenomenon of de-etiolation. While the spectralExpand
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