Morphactin stimulates stem elongation and thickening in decapitated shoots of Bryophyllum calycinum Salisb
| Autor: | Junichi Ueda, Agnieszka Marasek-Ciolakowska, M. Saniewski, E. Wegrzynowicz-Lesiak, Kensuke Miyamoto, Justyna Góraj |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Stem elongation
Bryophyllum calycinum elongation Plant Science Growth regulator morphactin Auxin Botany internode lcsh:Agriculture (General) Ecology Evolution Behavior and Systematics chemistry.chemical_classification biology fungi food and beverages thickening biology.organism_classification lcsh:S1-972 Horticulture Bryophyllum chemistry Auxin polar transport Shoot Thickening Elongation Agronomy and Crop Science methyl 2-chloro-9-hydroxyfluorene-9-carboxylate |
| Zdroj: | Acta Agrobotanica, Vol 66, Iss 2, Pp 21-28 (2013) |
| Popis: | Morphactin, methyl 2-chloro-9-hydroxyfluorene-9-carboxylate (IT 3456), is a synthetic growth regulator with a unique action affecting various morphogenetic and physiological processes in plants, and has been characterized as a specific inhibitor of auxin polar transport. Morphactin applied at the last internode in decapitated shoots of Bryophyllum calycinum substantially stimulated elongation and thickening of the internode. Benzyladenine applied alone little affected stem elongation and thickening. Simultaneous application of benzyladenine and morphactin showed a synergistic effect on thickening, while it did not on elongation. These results suggest that morphactin translocated basipetally from the top of the treated internode inhibits auxin polar transport from the internode, resulting in the accumulation of endogenous auxin for elongation and thickening in the treated internode of decapitated shoots of Bryophyllum calycinum. |
| Databáze: | OpenAIRE |
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