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Radiation chemistry—An introduction 辐射化学简介
Radiation Botany Pub Date : 1975-12-01 DOI: 10.1016/0033-7560(75)90024-1
Jack Schubert
{"title":"Radiation chemistry—An introduction","authors":"Jack Schubert","doi":"10.1016/0033-7560(75)90024-1","DOIUrl":"10.1016/0033-7560(75)90024-1","url":null,"abstract":"","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 4","pages":"Pages 451-452"},"PeriodicalIF":0.0,"publicationDate":"1975-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0033-7560(75)90024-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76951162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radiation-induced perturbation of microsporogenesis in Campelia zanonia (l.) H.B.K. 辐射诱导对甘菊小孢子发生的扰动(1)H.B.K.
Radiation Botany Pub Date : 1975-12-01 DOI: 10.1016/0033-7560(75)90009-5
D.J. Wigglesworth
{"title":"Radiation-induced perturbation of microsporogenesis in Campelia zanonia (l.) H.B.K.","authors":"D.J. Wigglesworth","doi":"10.1016/0033-7560(75)90009-5","DOIUrl":"10.1016/0033-7560(75)90009-5","url":null,"abstract":"<div><p>A recent study of the kinetics of developing microspores in half anther populations of <em>Campelia zanonia</em> has led to a better understanding of the fluctuations in compartmental indexes (e.g. the mitotic index) normally observed in plants grown under rigidly controlled environmental conditions.</p><p>Following an acute dose of X irradiation, additional fluctuations are observed in these indexes, and these are described and interpreted in the light of the above study. The induced perturbation is similar to the response found in other partially synchronised cell populations, and is consistent with the existence of two events of particular sensitivity in the mitotic cycle.</p></div>","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 4","pages":"Pages 375-379"},"PeriodicalIF":0.0,"publicationDate":"1975-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0033-7560(75)90009-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82801813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Responses of plants to environmental stresses 植物对环境胁迫的响应
Radiation Botany Pub Date : 1975-12-01 DOI: 10.1016/0033-7560(75)90021-6
Michele C. Heath
{"title":"Responses of plants to environmental stresses","authors":"Michele C. Heath","doi":"10.1016/0033-7560(75)90021-6","DOIUrl":"10.1016/0033-7560(75)90021-6","url":null,"abstract":"","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 4","pages":"Pages 449-450"},"PeriodicalIF":0.0,"publicationDate":"1975-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0033-7560(75)90021-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"110612076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 55
Histochemical evidence for the relationship between peel damage and the accumulation of phenolic compounds in gamma-irradiated citrus fruit 伽玛辐照柑橘果皮损伤与酚类化合物积累关系的组织化学证据
Radiation Botany Pub Date : 1975-09-01 DOI: 10.1016/S0033-7560(75)80024-X
J. Riov
{"title":"Histochemical evidence for the relationship between peel damage and the accumulation of phenolic compounds in gamma-irradiated citrus fruit","authors":"J. Riov","doi":"10.1016/S0033-7560(75)80024-X","DOIUrl":"10.1016/S0033-7560(75)80024-X","url":null,"abstract":"<div><p>The first symptoms of radiation damage to citrus fruit were noted 24 to 48 hr after irradiation with 240 krad of gamma rays. At about the same time, radiation-damaged cells were observed in peel cross sections in the flavedo, the outer colored peel layers. The damaged cells were deformed and their protoplasts stained much darker with haematoxylin-safranin than protoplasts of intact cells. The cytoplasm in damaged cells either thickened at one side of the cell, sometimes filling up most of the cell space, or contracted into a small mass. Using several histochemical reagents, a considerable accumulation of phenolic compounds was found to occur in the damaged cells shortly after irradiation. No accumulation of phenolic compounds was observed in intact cells of irradiated fruit. It is suggested that the phenolic compounds which accumulate in flavedo cells following irradiation cause cell death and consequent peel necrosis (pitting).</p></div>","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 3","pages":"Pages 257-258, IN3-IN6, 259-260"},"PeriodicalIF":0.0,"publicationDate":"1975-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0033-7560(75)80024-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91006812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Use of hydrogen sulphide and N-ethylmaleimide in the post-irradiation modification of oxic and anoxic components of damage in Hordeum vulgare 利用硫化氢和n -乙基马来酰亚胺辐照后改性普通Hordeum中有氧和无氧组分的损伤
Radiation Botany Pub Date : 1975-09-01 DOI: 10.1016/S0033-7560(75)80025-1
G. Jitendra Sharma, P.C. Kesavan
{"title":"Use of hydrogen sulphide and N-ethylmaleimide in the post-irradiation modification of oxic and anoxic components of damage in Hordeum vulgare","authors":"G. Jitendra Sharma,&nbsp;P.C. Kesavan","doi":"10.1016/S0033-7560(75)80025-1","DOIUrl":"10.1016/S0033-7560(75)80025-1","url":null,"abstract":"<div><p>The post-irradiation modification of radiosensitivity of barley seeds with about 7% water content by hydrogen sulphide and N-ethylmaleimide (NEM) applied during oxygenated or oxygen-free hydration was studied. H<sub>2</sub>S, which causes about 18% seedling injury to unirradiated seeds, effectively decreases the post-irradiation oxygen-dependent damage (<span>Powers</span>' class III). NEM dramatically enhances the magnitude of an O<sub>2</sub>-independent component of damage. It also affords a small degree of protection against the post-irradiation oxic damage. The mechanisms possibly involved are briefly discussed.</p></div>","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 3","pages":"Pages 261-266"},"PeriodicalIF":0.0,"publicationDate":"1975-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0033-7560(75)80025-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76838135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Studies on sprout inhibition of onions by gamma irradiation—I. influence of time interval between harvest and irradiation, radiation dose and environmental conditions on sprouting γ辐照抑制洋葱发芽的研究ⅰ。采收与辐照时间间隔、辐照剂量和环境条件对发芽的影响
Radiation Botany Pub Date : 1975-09-01 DOI: 10.1016/S0033-7560(75)80020-2
P. Thomas, A.N. Srirangarajan, S.P. Limaye
{"title":"Studies on sprout inhibition of onions by gamma irradiation—I. influence of time interval between harvest and irradiation, radiation dose and environmental conditions on sprouting","authors":"P. Thomas,&nbsp;A.N. Srirangarajan,&nbsp;S.P. Limaye","doi":"10.1016/S0033-7560(75)80020-2","DOIUrl":"10.1016/S0033-7560(75)80020-2","url":null,"abstract":"<div><p>Sprout inhibition of onions by gamma irradiation was found to be influenced by the physiological state of the bulbs at the time of irradiation, radiation dose and the storage temperature after irradiation. Sprouting was minimal during storage at ambient temperature (26 to 32°C) while exposure to low temperature (4 to 20°C) or widely fluctuating diurnal temperature (20°C min to 30°C max) accelerated it. Six to nine Krad inhibited sprouting during storage under the above conditions only if the bulbs were irradiated within a fortnight of harvest when they were in the dormant state. Twenty-five Krad caused a transient stimulation of sprouting regardless of the time of irradiation while 6 to 12 Krad only stimulated sprouting when the time interval between harvest and irradiation exceeded three weeks. Irradiation at all dose levels caused discoloration of the growth centre, the extent of which was minimal in bulbs exposed to low doses soon after harvest and in those stored at ambient temperature.</p></div>","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 3","pages":"Pages 215-220, IN1, 221-222"},"PeriodicalIF":0.0,"publicationDate":"1975-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0033-7560(75)80020-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88634666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Influence of pH on mutagenic specificity and efficiency of hydroxylamine, hydrazine and ethyl methanesulfonate in two rice types pH对两种水稻羟胺、肼和甲磺酸乙酯诱变特异性和诱变效率的影响
Radiation Botany Pub Date : 1975-09-01 DOI: 10.1016/S0033-7560(75)80026-3
V.J. Augustine, K. Palanichamy, E.A. Siddiq
{"title":"Influence of pH on mutagenic specificity and efficiency of hydroxylamine, hydrazine and ethyl methanesulfonate in two rice types","authors":"V.J. Augustine,&nbsp;K. Palanichamy,&nbsp;E.A. Siddiq","doi":"10.1016/S0033-7560(75)80026-3","DOIUrl":"10.1016/S0033-7560(75)80026-3","url":null,"abstract":"<div><p>The influence of treatment pH on the relative mutagenic efficiency and specificity of the base-specific chemicals hydrazine (HZ) and hydroxylamine (HA) in comparison to that of the potent alkylating agent ethyl methanesulfonate (EMS) was studied, under five different pH levels employing two different test systems <em>viz.</em>, the popular rice variety IR-8 and its viable, chlorophyll-deformed mutant, <em>virescent</em>. No mutations were observed in the M<sub>1</sub> generation itself. EMS was found to be the most potent of the three mutagens inducing the highest frequency of mutations under all the pH levels. HZ and HA were more cytotoxic and less mutagenic. However, the mutagenic effects of HZ and HA were much more pronounced in <em>virescent</em> as compared to their effect on IR-8. Thus, the efficiency of the mutagens were found to be dependent on the treatment pH as well as the test systems employed.</p></div>","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 3","pages":"Pages 267-277"},"PeriodicalIF":0.0,"publicationDate":"1975-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0033-7560(75)80026-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79456789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Synergistic effect of combined treatments of gamma radiation and ethyl methanesulfonate in barley γ辐射与甲磺酸乙酯复合处理对大麦的协同效应
Radiation Botany Pub Date : 1975-09-01 DOI: 10.1016/S0033-7560(75)80021-4
A.S. Khalatkar , C.R. Bhatia
{"title":"Synergistic effect of combined treatments of gamma radiation and ethyl methanesulfonate in barley","authors":"A.S. Khalatkar ,&nbsp;C.R. Bhatia","doi":"10.1016/S0033-7560(75)80021-4","DOIUrl":"10.1016/S0033-7560(75)80021-4","url":null,"abstract":"<div><p>In these experiments <sup>3</sup>H-labelled ethyl methanesulfonate (EMS) was used to study the effect of gamma rays on the uptake of EMS by barley seeds and the resultant alkylation of macro-molecules. In a parallel experiment the combined effect of gamma rays and EMS on mutation frequency and efficiency was investigated. Gamma irradiation (10, 20 and 30 kR) inhibited the uptake of [<sup>3</sup>H]-EMS, resulting in fewer alkylations in the macromolecular fraction. In the combined treatments with unlabelled EMS, seedling injury as well as frequency of mitotic and meiotic chromosomal aberrations were less than additive. However, a synergistic effect of combined treatment was observed for the induction of chlorophyll mutations in the M<sub>2</sub> generation. The results rule out the increased uptake of the chemical mutagen as the cause of the observed synergism, and suggest the interaction of radiation- and chemically-induced lesions.</p></div>","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 3","pages":"Pages 223-229"},"PeriodicalIF":0.0,"publicationDate":"1975-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0033-7560(75)80021-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77064334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
X-Ray-Induced fused perianth in Ricinus communis (L) 蓖麻(Ricinus communis) x射线诱导融合花被
Radiation Botany Pub Date : 1975-09-01 DOI: 10.1016/S0033-7560(75)80030-5
M. Subramanian , P. Sivasubramanian
{"title":"X-Ray-Induced fused perianth in Ricinus communis (L)","authors":"M. Subramanian ,&nbsp;P. Sivasubramanian","doi":"10.1016/S0033-7560(75)80030-5","DOIUrl":"10.1016/S0033-7560(75)80030-5","url":null,"abstract":"<div><p>Dried and soaked seeds of <em>Ricinus communis</em> L. cv Tindivanam, two were treated with X rays ranging from 10 kR to 100 kR with 10 kR increments. The mutants were studied for their variability. Three mutants possessing all the staminate flowers with fused perianth were spotted in the M<sub>2</sub> population obtained by treating the dried seeds at 30 kR, the breeding behaviour of these mutants in M<sub>3</sub> and their importance in hybrid seed production are discussed.</p></div>","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 3","pages":"Pages 307-308"},"PeriodicalIF":0.0,"publicationDate":"1975-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0033-7560(75)80030-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73748820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Radiation Botany Pub Date : 1975-09-01 DOI: 10.1016/S0033-7560(75)80034-2
R.D. Benz
{"title":"","authors":"R.D. Benz","doi":"10.1016/S0033-7560(75)80034-2","DOIUrl":"10.1016/S0033-7560(75)80034-2","url":null,"abstract":"","PeriodicalId":20794,"journal":{"name":"Radiation Botany","volume":"15 3","pages":"Page 311"},"PeriodicalIF":0.0,"publicationDate":"1975-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0033-7560(75)80034-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109026150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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