Induction of Leaf Spots in Leguminous Plants by Nucleotoxic Agents. I

Zacharias, Marina Barros; Ehrenberg, L.

doi:10.1111/j.1601-5223.1962.tb01813.x

Cited by 22 publications

(2 citation statements)

References 14 publications

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“…For the investigation of such problems Pisum is a material with an BLIXT, 1965aBLIXT, , 1965BLIXT and GELIN, 1965;BRUNS, 1954;KAPLAN, 1954;ZACHARIAS and EHRENBERG, 1962). The aim of this paper is to present some results from a series of experiments comprising seed-treatments with ethylmethanesulfonate (EMS) intended to elucidate mainly the temperature effect.…”

Section: Introductionmentioning

confidence: 99%

Studies of Induced Mutations in Peas

Gelin

2009

Hereditas

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Section: Introductionmentioning

confidence: 99%

Studies of Induced Mutations in Peas

Gelin

2009

Hereditas

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“…Several possibilities are available for estimation of the size of the mutated sector. It could be recorded in the first treated generation by the aid of leaf spots or leaf streaks (BRUNS 1954;EHREN-BERG and NYBOM 1954;KAPLAN 1954;BLIXT et al 1960BLIXT et al , 1964BLIXT et al , 1965ZACHARIAS and EHRENBERG 1962). In some cases ear characters like the speltoid or compactoid mutations in hexaploid wheat are detectable already in the first generation (MCKEY 1954;RANA and SWAMINATHAN 1967).…”

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The size and appearance of the mutated sector in barley spikes

Lindgren¹,

Eriksson²,

Šulovská³

2009

Hereditas

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Dormant barley seeds were treated with γ‐rays or EMS. Induced waxy mutations were studied in the first generation by analysing the pollen grains anther by anther. In this way the chimeric pattern could be analysed. The distribution of sector size is presented. The size varied between one single anther and the entire spike. The chimeric structure is frequently rather complicated. Individual spikelets are frequently chimeric. Chimerism within spikelets occurred more frequently following EMS treatment than after γ‐irradiation. The differences are probably due to the smaller size of the EMS‐sectors. The chimerism within the spikelets was sufficiently wide spread to have some influence on the segregation ratio. The ways of estimating mutation frequencies were discussed. The mutation frequency measured in the second generation might be somewhat underestimated, especially in main spikes and after EMS treatment owing to chimerism within spikelets. The distribution of sizes of sector was calculated based on the distribution of segregation ratios for chloroplast mutants. The results are in accordance with those obtained for the waxy mutants. The probability that two seeds chosen at random or in certain positions from a main spike contain the same mutant gene was calculated. The number of initial cells in a seed corresponding to the male germ line of a barley main spike is around three.

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Higher Plants

Ehrenberg

1971

Chemical Mutagens

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Induction of Leaf Spots in Leguminous Plants by Nucleotoxic Agents. I

Cited by 22 publications

References 14 publications

Studies of Induced Mutations in Peas

Studies of Induced Mutations in Peas

The size and appearance of the mutated sector in barley spikes

Higher Plants

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