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Wednesday, May 20, 2020 | History

2 edition of Some effects of ionizing radiation on vicia faba. found in the catalog.

Some effects of ionizing radiation on vicia faba.

Robert Michael Roy

Some effects of ionizing radiation on vicia faba.

by Robert Michael Roy

  • 137 Want to read
  • 14 Currently reading

Published in [Toronto] .
Written in English

    Subjects:
  • Growth (Plants),
  • Photosynthesis,
  • Plants -- Effect of radiation on

  • Edition Notes

    ContributionsToronto, Ont. University.
    The Physical Object
    Paginationix, 182 leaves,
    Number of Pages182
    ID Numbers
    Open LibraryOL20175700M

    SOURCES AND EFFECTS OF IONIZING RADIATION United Nations Scientific Committee on the Effects to the broader knowledge of radiation effects in humans. extensive use can be made of the proceedings of these conferences [E3, I15, T22, W7]; also, use was made of books, e.g. [I5, K19, M14, M15], and of special issues ofFile Size: 3MB.   Significance: The detrimental effects of ionizing radiation (IR) involve a highly orchestrated series of events that are amplified by endogenous signaling and culminating in oxidative damage to DNA, lipids, proteins, and many metabolites. Despite the global impact of IR, the molecular mechanisms underlying tissue damage reveal that many biomolecules are Cited by:

    Branch of science concerned with the methods of interaction and the effects of ionizing radiation on living systems. It's a combo of biology, physics, and epidemiology. Radiobiology is a combination of what 3 sciences? Biology, physics, and epidemiology. Radiobiology began with 3 . Abstract. Vicia faba seeds (cv. Giza 1) were planted in the Inshas gamma radiation field where they were chronically irradiated during the whole life of the plant. The percentage of the induced abnormal , as well as the frequency of abnormal in the different meiotic stages were proportional with the given by: 3.

    RSSC BIOLOGICAL EFFECTS OF IONIZING RADIATION 08/11 B. Area Exposed The portion of the body irradiated is an important exposure parameter because the larger the area exposed, other factors being equal, the greater the overall damage to the organism. This is because more cells have been impacted and there is a greaterFile Size: KB. The percentage of cells with chromosome aberrations or micronuclei induced by low doses of acute (dose rate of 47 cGy/min) or chronic (dose rate of cGy/min) gamma-irradiation was studied in vitro in Chinese hamster fibroblasts, human lymphocytes, and Vicia faba seeds and seedlings. The sensitivity of the indicated biological entities to low doses was greater than Cited by:


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Some effects of ionizing radiation on vicia faba by Robert Michael Roy Download PDF EPUB FB2

In a series of papers dating fromDr. Mottram described the effects of γ rays, β rays, and X rays on the growing tip of the broad bean root, Vicia faba. These papers record a number of interesting observations regarding the extent to which the injury produced by radiation may be influenced by changes in the physiological condition of the cells at the time Cited by: Some Aspects of the Chemical Protection against Radiation Damage to Vicia Faba Chromosomes.

The effect of ionizing radiations on the broad bean root. VIII. Br J Radiol. Jul The Effects of Carbon Monoxide and Oxygen on the Frequency of X-Ray Induced Chromosome Aberrations in Tradescantia.

Proc Natl Acad Sci U S A. Jan; 38Cited by: Journal Article: Effect of ionizing radiation on seeds of Vicia faba. Effect of ionizing radiation on seeds of Vicia faba. Full Record; Other Related Research; Authors: Shepstone, B.J.

Publication Date: Sun Jul 01 EDT Research Org.: Groote Schuur Hospital, Cape Town OSTI Identifier. journal article: effects of cyanide and ionising radiation on the roots of vicia faba. Experiments on irradiation of Vicia faba suggest that radiation induces the formation of radioinductors which migrate into nonirradiated cells, and inhibit cell division.

The inhibiting substances may be products of oxidization of tyrosine occurring as free radicals, and these may form complexes with DNA and prevent its normal : A. Kuzin. Aly and El-Beltagi [38] showed that increase in GST, CAT, SOD, and POD activities in Vicia faba L.

seeds could be attributed to ionizing irradiation stress. Cho et al. [39] investigated the. Effects of X-irradiation on the meiosis of Vicia faba.

Abstract. Plants of Vicia faba with buds at all stages of development were exposed to a range of doses of X-rays at a dose rate of 50 R per min. The effects of irradiation in the pollen-mother Cited by: 3. Table of Contents General Description 1 Alpha Particles 2 Beta Particles.3 Gamma Rays 4 X-Rays 5 Sources of Radiation 7 Natural Radiation 7 Manmade Radiation.8 Health Effects from Exposure to Ionizing Radiation.9 Results of Exposure 11 Chronic Exposure 12 Acute Exposure 13 Risks of Health Effects 14 Estimating Health Risk 16 Suggested Reading Robert Michael Roy has written: 'Some effects of ionizing radiation on vicia faba' -- subject(s): Plants, Photosynthesis, Growth (Plants), Effect of radiation on 'Simulated fallout studies in.

states that ionizing radiation is more effective against cells which are highly mitotic, immature, and have a long dividing future. reproductive failure.

cell that is unable to continue repeated divisions after being irradiated. What are some obvious effects of ionising radiation exposure. Extreme doses of radiation to the whole body (around 10 sievert and above), received in a short period, cause so much damage to internal organs and tissues of the body that vital systems cease to function and death may result within days or weeks.

Very high doses (between about 1 sievert and 10 sievert). PDF | The effect of gamma (γ) irradiation on Vicia faba L.

plants were investigated by exposing three-week-old seedlings to doses ranging from 0 to | Find, read and cite all the research. after exposure to ionizing radiation, a discussion of such phenomena is beyond the scope of this annex.

The immediate effects of ionizing radiation exposure may be seen at various levels of organization from the sub-cellular through individual organisms to populations and ecosystems [G16]. Responses of various biological func.

combined effects of ionizing radiation and magnetic fields on root growth in vicia faba. experiments on the relation between the biological effects of ionizing radiation and magnetic fields.

combined effects of ionizing radiation and magnetic fields on root growth in vicia faba. Radiation Botany,Vol. 10, pp. to Pergamon Press. Printed in Great Britain. CARBON DIOXIDE FIXATION AND TRANSLOCATION OF PHOTOASSIMILATES IN VICIA FABA FOLLOWING X-IRRADIATION* R. ROY," and G. CLARK Ramsay Wright Zoological Laboratories, University of Toronto, Toronto, Canada (Received 25 March ) Abstract--At Cited by: 8.

Artık C, Pekşen E. The effects of gamma irradiation on seed yield and some plant characteristics of faba bean (Vicia faba L.) in M 2 generation. The Journal of Agricultural Faculty of Ondokuz Mayıs University 21 (1): Google by: The biological effects of the ionizing radiation types on creeping bentgrass are summarizable as follows: germination, carbon ions (C) > γ-rays (G) > proton ions (P); survival, C > P = G; growth.

Absence of B in the root environment reduced the linear growth of the radicles of the 5 plant species tested, including broad bean and pea.

The minimum B requirement for unrestricted growth of the radicle of Vicia faba var. minor over hr. was p.p.m. There was little movement of B from either seed to radicle or from epicotyl to radicle by: Mutation Research, 26 (~) ~Elsevier Scientific Pt~btishing Company, Amsterdam - Printed in The Netherlands 89 EFFECT OF CAFFEINE ON CHROMOSOME DAMAGE INDUCED BY CHEMICAL IVIUTAGENS AND IONIZING RADIATION IN VICIA FABA AND SECALE CEREALE Z.

SWIETLINSKA AND J. ~UK Instit~tte of Biochemistry a~d Biophysics, Polish Cited by: Likewise, in Vicia faba roots tips, Kuglik et al. () showed a very good correlation between the micronucleus frequency and the increasing dose of 60 Co gamma rays from 10 to mGy.

The Tradescantia -stamen-hair mutation test (Trad-SH) was used successfully to evaluate the genotoxicity of radiations stemming from Cs, as a gamma and Cited by:. The aim of this review is to highlight the effects of ionizing radiation (IR) on genetic material in higher plants and its involvement in both adaptive processes and species evolution.

(Evans and Scott, ) observed that Vicia faba, irradiated at 1 Gy, had a higher sensitivity during the middle G2-phase. The S-phase, as well as the early Cited by: Thereby, it is very important to evaluate if this technology affects the beans components and technological properties.

In fact, ionizing radiation was already used on some .Survival curves for mammalian cells exposed to x-rays in the presence and absence of oxygen are illustrated in Figure The ratio of doses administered under hypoxic to aerated conditions needed to achieve the same biologic effect is called the oxygen enhancement ratio (OER).

For sparsely ionizing radiations, such as x- and γ-rays, the OER at high doses has a value of .