[Objective] This study was conducted to detect the variation induction ability of ethyl methanesulfonate （EMS）, to construct a mutant population. [Method] 0.6%, 1.2% and 2.4% EMS solutions were used for inducing 2 4...[Objective] This study was conducted to detect the variation induction ability of ethyl methanesulfonate （EMS）, to construct a mutant population. [Method] 0.6%, 1.2% and 2.4% EMS solutions were used for inducing 2 400 stem segments of test-tube plantlets of tetraploid potato Longshu 7, and an asexual mutant population including leaf, plant type, stem, stolon, glandular hair traits was constructed. [Result] Twenty two mutation types, i.e. etiolated plantlet, albino plantlet, leaf-color gradient, etiolated vein, wrapped bud, lobed leaf, crinkled leaf, deformed compound leaf, cluster, branch, top enlargement, top bifurcation, succulent, stolon distortion, stolon shift, early tuberization, hair stolon, stem enlargement, vine stem, foliage stem, glandular hair and whorled leaf types were observed in total. There were 52 mutant single plants in total, with a mutation rate of 21.67‰. [Conclusion] The glandular hair, clustered short-stem, branched stem and early tuberization types of mutants have higher application value, and are anticipated to be used in potato functional genome research, gene improvement and germplasm innovation.展开更多
The kinetics of hydrolysis of cationic reactive disperse dyes containing quaternary group and chemical shift（13CNMR） of the adjacent carbon atoms with pyridine-acetylamino were discussed. The results show pyridine-a...The kinetics of hydrolysis of cationic reactive disperse dyes containing quaternary group and chemical shift（13CNMR） of the adjacent carbon atoms with pyridine-acetylamino were discussed. The results show pyridine-acetylamino reactive group had higher reactivity than chloroacetylamino and chemical shift（13 CNMR） of the adjacent carbon atoms with pyridine-acetylamino moved 18.77 ppm.展开更多
A study of the genetic diversity within four subpopulations of Chimonobambusa rivularis Yi and adaptations to altitude, habitat and related factors in Qionglai City of Sichuan province in China, analyzed by random amp...A study of the genetic diversity within four subpopulations of Chimonobambusa rivularis Yi and adaptations to altitude, habitat and related factors in Qionglai City of Sichuan province in China, analyzed by random amplified polymorphic DNA technique. 22 random primers were selected in the amplification and 375 repetitive loci with 350 polymorphic loci were produced. The total average percentage of amplification loci was 93.3%. The genetic diversity of every subpopulation was medium on （the percentage of amplification loci was 49.33%-66.67%）. The genetic diversity of high altitude samples of Zhengtiantai was lower than that of low altitude Wutonggang＇s. There was no obvious differentiation between two subpopulations of Zhengtiantais. The correlation is very low between altitude and the amplification loci and the genetic distance, Pearson correlation coefficient was 0.431 and 0.488 （P 〈 0.01）. Through investigation, the primary cause of heredity multiplicity drops was that the habitat had been destroyed by tourism development and other human disturbance.展开更多
Many of people have tried to obtain the structure of Baer-invariant of groups exactly. Recently, B. Mashayekhy and M. Parvizi determine Baer-invariant of finitely generated Abelian groups. Also, it is done for some no...Many of people have tried to obtain the structure of Baer-invariant of groups exactly. Recently, B. Mashayekhy and M. Parvizi determine Baer-invariant of finitely generated Abelian groups. Also, it is done for some non-Abelian groups, such the dihedral and the quaternion groups directly, and sometimes with the softwares of Gap and Magma. But nobody works on non finitely generated Abelian groups. In 1979, M.R.R. Moghaddarn showed that the structure of Baer-invariant of group commutes with the direct limit of a directed system, in some sense. The authors have used these results and proved that the Baer-invariant of C is always trivial and also Baer-invariant of Abelian groups Q/z and Z （p∞）, with respect to the varieties of outer commutators and so polynilpotent, nilpotent are trivial. One can see immediately that the covering groups of these groups are themselves. Then after computing the Baer-invariant of Zn with respect to Burnside variety, we have concluded for Q/z and Z（P∞） Burnside variety. In the future, they try to survey the commutativity of the Baer-invariant variety with the other useful varieties in order to attain similar results for another non finitely generated Abelian groups.展开更多
This paper reviews the author＇s recent works on the basic physics of cold fusion by the TSC （tetrahedral symmetric condensate） theory. Models of TSC formation conditions in condensed matter are first proposed. Seco...This paper reviews the author＇s recent works on the basic physics of cold fusion by the TSC （tetrahedral symmetric condensate） theory. Models of TSC formation conditions in condensed matter are first proposed. Secondly formulas for cold fusion rates per D（H）-cluster are explained with typical quantitative results. The 4D/TSC fusion and the 4H/TSC WS fusion are underlying mechanisms, respectively for the D （deuterium）-system and the H （protium）-system.展开更多
The formation mechanism for the body-centred regular tetrahedral structure of Li5 cluster is proposed. The curve of the total energy versus the separation R between the nucleus at the centre and nuclei at the apexes f...The formation mechanism for the body-centred regular tetrahedral structure of Li5 cluster is proposed. The curve of the total energy versus the separation R between the nucleus at the centre and nuclei at the apexes for this structure of Li5 has been calculated by using the method of Gou＇s modified arrangement channel quantum mechanics （MACQM）, The result shows that the curve has a minimal energy of-37.2562 a.u. at R =14.5α0. When R approaches infinity the total energy of five lithium atoms has the value of-37.1401 a.u. So the binding energy of Li5 with respect to five lithium atoms is the difference of 0.1161 a.u. for the above two energy values. Therefore the binding energy per atom for Li5 is 0.023 22 a.u., or 0.632 eV, which is greater than the binding energy per atom of 0.453 eV for Li2 and the binding energy per atom of 0.494 eV for Li3 calculated previously by us. This means that the Li3 cluster may be formed stably in a body-centred regular tetrahedral structure with a greater binding energy.展开更多
文摘[Objective] This study was conducted to detect the variation induction ability of ethyl methanesulfonate （EMS）, to construct a mutant population. [Method] 0.6%, 1.2% and 2.4% EMS solutions were used for inducing 2 400 stem segments of test-tube plantlets of tetraploid potato Longshu 7, and an asexual mutant population including leaf, plant type, stem, stolon, glandular hair traits was constructed. [Result] Twenty two mutation types, i.e. etiolated plantlet, albino plantlet, leaf-color gradient, etiolated vein, wrapped bud, lobed leaf, crinkled leaf, deformed compound leaf, cluster, branch, top enlargement, top bifurcation, succulent, stolon distortion, stolon shift, early tuberization, hair stolon, stem enlargement, vine stem, foliage stem, glandular hair and whorled leaf types were observed in total. There were 52 mutant single plants in total, with a mutation rate of 21.67‰. [Conclusion] The glandular hair, clustered short-stem, branched stem and early tuberization types of mutants have higher application value, and are anticipated to be used in potato functional genome research, gene improvement and germplasm innovation.
文摘The kinetics of hydrolysis of cationic reactive disperse dyes containing quaternary group and chemical shift（13CNMR） of the adjacent carbon atoms with pyridine-acetylamino were discussed. The results show pyridine-acetylamino reactive group had higher reactivity than chloroacetylamino and chemical shift（13 CNMR） of the adjacent carbon atoms with pyridine-acetylamino moved 18.77 ppm.
文摘A study of the genetic diversity within four subpopulations of Chimonobambusa rivularis Yi and adaptations to altitude, habitat and related factors in Qionglai City of Sichuan province in China, analyzed by random amplified polymorphic DNA technique. 22 random primers were selected in the amplification and 375 repetitive loci with 350 polymorphic loci were produced. The total average percentage of amplification loci was 93.3%. The genetic diversity of every subpopulation was medium on （the percentage of amplification loci was 49.33%-66.67%）. The genetic diversity of high altitude samples of Zhengtiantai was lower than that of low altitude Wutonggang＇s. There was no obvious differentiation between two subpopulations of Zhengtiantais. The correlation is very low between altitude and the amplification loci and the genetic distance, Pearson correlation coefficient was 0.431 and 0.488 （P 〈 0.01）. Through investigation, the primary cause of heredity multiplicity drops was that the habitat had been destroyed by tourism development and other human disturbance.
文摘Many of people have tried to obtain the structure of Baer-invariant of groups exactly. Recently, B. Mashayekhy and M. Parvizi determine Baer-invariant of finitely generated Abelian groups. Also, it is done for some non-Abelian groups, such the dihedral and the quaternion groups directly, and sometimes with the softwares of Gap and Magma. But nobody works on non finitely generated Abelian groups. In 1979, M.R.R. Moghaddarn showed that the structure of Baer-invariant of group commutes with the direct limit of a directed system, in some sense. The authors have used these results and proved that the Baer-invariant of C is always trivial and also Baer-invariant of Abelian groups Q/z and Z （p∞）, with respect to the varieties of outer commutators and so polynilpotent, nilpotent are trivial. One can see immediately that the covering groups of these groups are themselves. Then after computing the Baer-invariant of Zn with respect to Burnside variety, we have concluded for Q/z and Z（P∞） Burnside variety. In the future, they try to survey the commutativity of the Baer-invariant variety with the other useful varieties in order to attain similar results for another non finitely generated Abelian groups.
文摘This paper reviews the author＇s recent works on the basic physics of cold fusion by the TSC （tetrahedral symmetric condensate） theory. Models of TSC formation conditions in condensed matter are first proposed. Secondly formulas for cold fusion rates per D（H）-cluster are explained with typical quantitative results. The 4D/TSC fusion and the 4H/TSC WS fusion are underlying mechanisms, respectively for the D （deuterium）-system and the H （protium）-system.
基金The project supported by National Natural Science Foundation of China under Grant No. 19974027
文摘The formation mechanism for the body-centred regular tetrahedral structure of Li5 cluster is proposed. The curve of the total energy versus the separation R between the nucleus at the centre and nuclei at the apexes for this structure of Li5 has been calculated by using the method of Gou＇s modified arrangement channel quantum mechanics （MACQM）, The result shows that the curve has a minimal energy of-37.2562 a.u. at R =14.5α0. When R approaches infinity the total energy of five lithium atoms has the value of-37.1401 a.u. So the binding energy of Li5 with respect to five lithium atoms is the difference of 0.1161 a.u. for the above two energy values. Therefore the binding energy per atom for Li5 is 0.023 22 a.u., or 0.632 eV, which is greater than the binding energy per atom of 0.453 eV for Li2 and the binding energy per atom of 0.494 eV for Li3 calculated previously by us. This means that the Li3 cluster may be formed stably in a body-centred regular tetrahedral structure with a greater binding energy.
