Ethylene Production and Growth Accerelation in the Seedlings of Dwarf and Semidwarf Mutants Derived from a Cultivar of Rice (Oryza sativa L.)

Autor: Fumihiko Sekiguchi, Yoshu Yoshiba, Hikoyuki Yamaguchi
Rok vydání: 1993
Předmět:
Zdroj: RADIOISOTOPES. 42:335-340
ISSN: 1884-4111
0033-8303
DOI: 10.3769/radioisotopes.42.335
Popis: The rate of seedling growth of the semidwarf mutant cultivar Reimei and the dwarf mutant line, Fukei 71 were found to be much faster than their original cultivar Fujiminori. Such rapid early growth of the dwarf and semidwarf mutants was significantly inhibited by the treatment with the ethylene synthesis inhibitor, aminoethoxyvinylglycine (AVG) . For example, with 25μM of AVG treatment the elongation was inhibited by 36% and 41% during the growth of Reimei and Fukei 71 seedlings, respectively, as compared with 13% for that of Fujiminori. Gas chromatography showed that ethylene production in Reimei and Fukei 71 were about 2.5 and 7.1-fold higher than that of Fujiminori, respectively. It was suggested that the stimulation of the growth in dwarf and semidwarf mutants might be derived from the increased ethylene production.
Databáze: OpenAIRE