Radiation induced chimeric rearrangement in flower structure of Rhododendron simsii
Planch. (Azalea indica L.). Use of recurrent irradiation

Loose, R. De

doi:10.1007/bf00029180

Cited by 9 publications

(5 citation statements)

References 11 publications

(4 reference statements)

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“…The formation of chimeral mutants, one of the primary problems in mutagenesis, has occurred in a variety of plant species exposed to ionizing radiations (Broertjes 1966;de Loose 1979;Parliman and Stushnoff 1979;Roest et al 1981;Cassells et al 1993;Mandal et al 2000). Chimerism was not observed in the current study with gamma rays and X-rays irradiating wasabi shoots in vitro.…”

Section: Discussionmentioning

confidence: 98%

Effects of ionizing radiation on the growth and allyl isothiocyanate accumulation of Wasabia japonica in vitro and ex vitro

Hung

Johnson

2007

In Vitro Cell.Dev.Biol.-Plant

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Mutations were induced in tissue-cultured wasabi (Wasabia japonica Matsumura) by treating in vitro-derived shoot tips with either γ-rays or X-rays at 0, 10, 20, 40 or 80 Gy. Doses of up to 40 Gy of either γ-or X-ray treatments resulted in a survival rate of more than 60% in culture after 3 mo. The use of γ-or X-rays at doses between 10 Gy and 40 Gy to induce mutation in W. japonica resulted in an alteration of the growth and allyl isothiocyanate (AITC) content of multiple shoots after 3 mo. in culture on Murashige and Skoog medium containing 5 μM N 6 -benzyladenine (BA). Putative mutants from the 40 Gy treatments of either γ-or X-rays exhibited a reduction in shoot weight, number, and height, whereas treatments of either γ-rays or X-rays at 10 Gy and 20 Gy doses showed no significant differences in shoot growth. All shoots treated with 80 Gy were either necrotic or irregenerable, while those treated with 40 Gy produced deformed leaves, from both types of ionizing radiation. Concentrations of AITC were measured by the use of gas chromatography-mass spectrometry (GC-MS). The accumulation of AITC was shown to decrease when doses increased in both γ-and Xray treatments, compared with the controls. Positive responses were solely occurred at 18 mo. after transfer of in vitro rooted shoots to the shade house. The survival rate, rhizome weight and AITC content of plants derived from shoots treated with 20 Gy or 40 Gy of either γ-rays or Xrays were significantly greater than those of the controls.

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Section: Discussionmentioning

confidence: 98%

Effects of ionizing radiation on the growth and allyl isothiocyanate accumulation of Wasabia japonica in vitro and ex vitro

Hung

Johnson

2007

In Vitro Cell.Dev.Biol.-Plant

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“…Mutation breeding methods are appropriate for the induction and selection of dwarf mutants suitable as pot plants. Recurrent irradiation may increase the efficiency of mutant selection, as demonstrated in Rhododendron simsii by De Loose (1979). With three consecutive treatments during three years, 31 % of plants had chimaeric ftowers.…”

Section: Lnduced Mutations In Ornamental Plants 349mentioning

confidence: 96%

“…Most of these alterations also appeared as natural sports. De Loose (1979) outlined the direction of sporting of ftower colour in azaleas (Fig. 2).…”

Section: Woody Ornamental Plantsmentioning

confidence: 99%

Induced Mutations in Ornamental Plants

Schum

Preil

1998

Somaclonal Variation and Induced Mutations in Crop Improvement

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“…Lilac is light purple . The red, carmine red and pink colours also occur as sports with more or less clearly marked white edges (see BROERTJES & VAN HARTEN, 1978 ;DE LOOSE, 1979 ;HEURSEL, 1980) .…”

Section: Resultsmentioning

confidence: 99%

Diversity of flower colours in Rhododendron simsii Planch. and prospects for breeding

Heursel¹

1981

Euphytica

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Radiation induced chimeric rearrangement in flower structure of Rhododendron simsii Planch. (Azalea indica L.). Use of recurrent irradiation

Cited by 9 publications

References 11 publications

Effects of ionizing radiation on the growth and allyl isothiocyanate accumulation of Wasabia japonica in vitro and ex vitro

Effects of ionizing radiation on the growth and allyl isothiocyanate accumulation of Wasabia japonica in vitro and ex vitro

Induced Mutations in Ornamental Plants

Diversity of flower colours in Rhododendron simsii Planch. and prospects for breeding

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