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Titlebook: Genetic Manipulations with Plant Material; Lucien Ledoux Book 1975 Springer Science+Business Media New York 1975 DNA.chromosome.developmen

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發(fā)表于 2025-3-21 16:59:29 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Genetic Manipulations with Plant Material
編輯Lucien Ledoux
視頻videohttp://file.papertrans.cn/383/382548/382548.mp4
叢書名稱NATO Science Series A:
圖書封面Titlebook: Genetic Manipulations with Plant Material;  Lucien Ledoux Book 1975 Springer Science+Business Media New York 1975 DNA.chromosome.developmen
描述Mankind, throughout history, has strived to improve his food sources. By means of slow and empirical selections, it has been possible to greatly increase both quantity and quality of plant crops. This procedure has brought the most useful cereals to a state of refinement that seems to be difficult to further improve by the same methodology. Indeed, natural sexual mechanisms were always used to cross closely related sexually and genetically compatible organisms; the selection procedure consisted of isolating the most promi- sing progenies. Obviously, by this way, plants could only share preexisting genetic pools. On the other hand, the last decade has seen drastic modifi- cations of the experimental plant sciences, with the appearance of new technological possibilities. Because of this profound reshaping of our experimental ap- proaches, other means can now be realistically envisaged in order to achieve similar or even higher goals. It is, for instance, possible to attempt completing sexual crosses (where both male and female gametes bring together the genetic informations necessary for growth and development of the offspring) by parasexual means by which novel genetic informa- tion
出版日期Book 1975
關鍵詞DNA; chromosome; development; genes; genetics; growth; hand; hybridization; methodology; mutagen; quality
版次1
doihttps://doi.org/10.1007/978-1-4684-2763-9
isbn_softcover978-1-4684-2765-3
isbn_ebook978-1-4684-2763-9
copyrightSpringer Science+Business Media New York 1975
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沙發(fā)
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Das Reduktionsverfahren der Baustatikg cytological instability and to assess how far it may be possible to stabilise the cytology of cells in culture or to circumvent this problem. (iii) The availability of haploid cells via anther and pollen culture (Sunderland, 1973a and Nitsch in this volume) requires attention to the potentiality o
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saged in order to achieve similar or even higher goals. It is, for instance, possible to attempt completing sexual crosses (where both male and female gametes bring together the genetic informations necessary for growth and development of the offspring) by parasexual means by which novel genetic informa- tion978-1-4684-2765-3978-1-4684-2763-9
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978-1-4684-2765-3Springer Science+Business Media New York 1975
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Die Gerichtsstandsvereinbarung,. It is the step in the nitrogen cycle which compensates for a loss of fixed nitrogen to the atmosphere caused by microbial reduction of the nitrate ion; the complete nitrogen cycle can be represented in many forms such as that below:
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https://doi.org/10.1007/978-3-642-93176-5 of the facts obtained by experimental investigation of actual phenomena can usually elucidate the mechanisms of the phenomenon, thereby eliminating the need for theoretical hypotheses.” (MEDVEDEV 1970). Yet the speculations are rarely saved when genetic mechanisms of differentiation and development are considered.
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發(fā)表于 2025-3-23 08:29:12 | 只看該作者
Das Reduktionsverfahren der Baustatikuantitative changes in cellular metabolism are therefore essential to studies in genetic manipulation. This lecture is therefore concerned to evaluate how far recent advances in plant cell culture now provide us with the necessary capability to monitor metabolism at the level of higher plant cells.
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