Effects of X irradiation on corn seed

Effects of Gamma-Irradiation of Corn Seed on the Respiration and Growth of the Seedling

“…Likewise, Mikaelsen and Halvorsen (1953) found that the respiration of barley seedlings was inhibited only by doses of X-irradiation which were high enough to inhibit growth. Cherry, Hageman, Collins, and Flesher (1961) reported that X-irradiation of corn seed reduced the Q02 in the root and plumule apices of 3-day-old seedlings and changed the Q02(N) and P/0 ratios of mitochondria isolated from the embryo or scutellum. While the effects on respiration cited above may result.…”

Physiological Responses of Callus from Gerbera jamesonii Bolus ex. Hook f. to Gamma Irradiation

“…Tiburcio et al (1985) reported that the soluble protein level in Nicotiana rustica plants compared to the control plant or just irradiated plants was higher, indicating that stimulatory effect on the increase of soluble protein content could be due to posttreatment recovery. In corn seeds, Cherry et al (1961) noted that the production of reducing sugar, protein, soluble nucleotides and RNA was reduced by X-ray irradiation and indicated that this reduction was parallel to growth reduction. Kuzin (1956) and Hagen and Gunckel (1958) found a depression of protein synthesis in Nicotiana glauca and Nicotiana langsdorfu caused by the radiation.…”

“…He added that in Chlorella pyrenoidosa, the cells exposed for 3 days to gamma irradiation increased in volume and had increased amount of DNA and protein (per cell). The irradiation can effect protein directly and indirectly (Gunkel and Sparrow 1954), whereby protein synthesis is inhibited (Cherry et al 1961), unaffected or enhanced (Clark and Fernandes 1961).…”

Zn2+‐Dependent Acid Inorganic Pyrophosphatase Activity as Related to Other Pyrophosphatases in Oryza sativa

“…Alterations in the activities of several enzymes by ionizing radiation are well documented (Cherry et al 1961, Abrol et al 1969, Ogawa and Uritani 1970, Warfield et al 1975. The changes in the inorganic pyrophosphatase activities in the seedlings grown from gamma-irradiated seeds are shown in Table 3.…”