Cytogenetics of Aquatic Ornamentals:IV. Effects of gamma irradiation on Nymphaea rubra Roxb
スポンサーリンク
概要
- 論文の詳細を見る
Irradiation of rhizomes of Nymphaea rubra by 2, 3 and 4 krad of gamma rays induced morphological and cytological changes. The 5 krad and higher doses were found to be lethal. Morphological changes concerning floral and vegetative parts of irradiated plants mostly belonged to the primary effects of radiation and were unstable. However, change from toothed to entire margin of leaf, numerical alterations in petals and stamens, induction of narrower or twisted petals with obtuse tips, changes in the contour of androecium and intensity of colour of petals were stable.Cytological alterations included formation of interchange multiples, fall in chiasma frequency and aberrations of chromosomes in the irradiated plants. Pollen fertility decreases after irradiation, and those treated with 3 and 4 krad became completely sterile.
- 財団法人 日本メンデル協会の論文
財団法人 日本メンデル協会 | 論文
- The Chromosomes of Dicranocephalus agilis (Hemiptera: Heteroptera)
- Consistently greater decondensation of the nuclear DNA-protein complexes from normal lymphocytes than from acute and chronic lymphocytic leukemia cells following treatment with disulfide reducing agents.
- The Reversion of Chromoplasts to Chloroplasts in Valencia Oranges
- Two Problems in the Interpretation of Meiosis in Plants
- Cytology of Trichosanthes palmata Roxb