Influence of Seed Irradiation with X-Rays and Thermal Neutrons Upon Cell Size and Mitotic Activity in Root Tips of Maize

Haskins, Francis A.; Davidson, Merwyn; Beers, Russell

doi:10.1086/282047

Cited by 4 publications

(1 citation statement)

References 10 publications

(6 reference statements)

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“…For this purpose, seeds were irradiated with Co60 gamma rays before moistening. Although ionizing radiation affects all parts of a cell, one might expect to observe more detectable injury to mechanisms controlling cell division than to those controlling cell expansion (9,12). Therefore seeds were given 641 kr of gamma radiation and sown on 10-5 M kinetin at 260 C. Kinetin was used to reverse the inhibition of germination percentages effected by irradiation with 641 kr (7).…”

Section: Resultsmentioning

confidence: 99%

Separation of Mechanisms Initiating Cell Division and Cell Expansion in Lettuce Seed Germination

Haber

Luippold

1960

Plant Physiol.

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Section: Resultsmentioning

confidence: 99%

Separation of Mechanisms Initiating Cell Division and Cell Expansion in Lettuce Seed Germination

Haber

Luippold

1960

Plant Physiol.

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Induced mutation

Prakken

1959

Euphytica

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The author gives a survey of the methods used and the results obtained in induced mutation . The article consists of three parts : the general theoretical aspects, the possibilities of practical application and a bibliography of 789 titles .In the theoretical part (Mutation research) the various types of mutation are mentioned, but only gene-or point mutations and structural mutations are discussed . These two categories cannot be distinguished sharply . Study of diploid organisms is less easy than that of haploid ones, study of cross-fertilizers less easy than that of self-fertilizers, and study of recessive mutations (the most frequent type) less easy than that of dominant ones . Methods for induction of mutations are discussed in the chapters "Irradiation as mutagen" and "Chemical mutagens" .In the second part the mutagens, treatments, mutation frequency, mutation spectrum, selection methods, etc . are discussed with respect to the possibilities of practical application (Mutation breeding) . Chemical mutagens are becoming more important . The techniques for production and for selection of mutants demand improvement and refinement . Hitherto interest has been mainly concentrated upon easily recognizable morphological mutations . Attention, however, should also be drawn more towards the smaller, quantitative, physiological, chemical mutations .Mutation breeding offers many possibilities and difficulties . The keen eye, the optimism, enthousiasm and perseverence which are of so much importance in the normal plant breeding, are necessary in mutation breeding as well .

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Effect of Gibberellic Acid on the Radiation-stunted Seedlings of Maize

Gaur¹,

Notani²

1960

International Journal of Radiation Biology and Related Studies

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Influence of Seed Irradiation with X-Rays and Thermal Neutrons Upon Cell Size and Mitotic Activity in Root Tips of Maize

Cited by 4 publications

References 10 publications

Separation of Mechanisms Initiating Cell Division and Cell Expansion in Lettuce Seed Germination

Separation of Mechanisms Initiating Cell Division and Cell Expansion in Lettuce Seed Germination

Induced mutation

Effect of Gibberellic Acid on the Radiation-stunted Seedlings of Maize

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