Akhundova G G, Grinikh L I, Shevchenko V V
Ontogenez. 1978;9(5):514-9.
The flowers and young legumes of Arabidopsis thaliana (phases of development B3--B7) were irradiated by gamma-rays at the dose of 4 kr. The irradiation did not influence the duration of phases of the flower development irrespective of the phase of irradiation. The cytological characteristics of embryos is given for each phase under study. The duration of developmental stages (from zygote till the spheroid stage) in the control and following the irradiation was practically the same. The irradiation induced different developmental abnormalities. The most frequent type: the first transversal division of the apical cell instead of the longitudinal one. The irregular division of the suspensor cells, delay in the apical cell division upon the normal suspensor division, irregular position of septa and irregular form of the embryonic body were also observed. The highest level of abnormalities in the formation of cotyledons was noted following the irradiation of young legumes (phases B6--B7).
用4千伦琴的γ射线辐照拟南芥的花和幼嫩豆荚（发育阶段B3 - B7）。无论辐照阶段如何，辐照均不影响花发育阶段的持续时间。针对所研究的每个阶段给出了胚胎的细胞学特征。对照和辐照后发育阶段（从合子到球体阶段）的持续时间基本相同。辐照诱导了不同的发育异常。最常见的类型：顶端细胞的第一次横向分裂而非纵向分裂。还观察到了悬垂细胞的不规则分裂、正常悬垂细胞分裂时顶端细胞分裂延迟、隔膜位置不规则以及胚体形态不规则。在幼嫩豆荚（阶段B6 - B7）辐照后，子叶形成异常的水平最高。
