所有栖息在植物宿主上的微生物被称为植物微生物组。随着高通量测序的发展,植物微生物组作为一个复杂的生态系统已经被广泛关注。植物微生物组群落的结构和功能等方面已得到了深入细致的研究,而植物与微生物组的互作机制仍有待探索。全...所有栖息在植物宿主上的微生物被称为植物微生物组。随着高通量测序的发展,植物微生物组作为一个复杂的生态系统已经被广泛关注。植物微生物组群落的结构和功能等方面已得到了深入细致的研究,而植物与微生物组的互作机制仍有待探索。全基因组关联分析(Genome-Wide Association Analysis Study, GWAS)作为一种有效的手段已经被用来研究宿主和微生物组之间的关系。本文基于国内外最新研究进展,从以下方面进行综述,包括植物对微生物组的调控,以及如何应用GWAS研究植物与微生物组互作遗传机制,重点阐述了植物与微生物组关联分析中微生物组作为“拓展表型”数据的选择,并且总结了植物宿主影响微生物组的遗传机制,旨在阐明宿主遗传因素对微生物组的调控,增进对植物与微生物组互作的理解。展开更多
The electronic structure of InAs_(0.25)P_(0.75)/InP strained quantum wires grown on InP(001)oriented substrates is studied within the framework of effective-mass envelope-function theory.At theΓpoint,the electron and...The electronic structure of InAs_(0.25)P_(0.75)/InP strained quantum wires grown on InP(001)oriented substrates is studied within the framework of effective-mass envelope-function theory.At theΓpoint,the electron and valence subband energy levels with and without spin-split-off band,and the absorption spectra are calculated.The effects of strain and spin-split-off band on valence energy levels are presented.The results show that the uppermost valence subband is almost unaffected by the strain induced coupling between the heavy-and light-hole bands and the spin-split-off bands while the other subbands are more markedly affected in the InAs0.25P0.75/InP strained quantum wires.展开更多
The band structure of the short period zinc-blende(GaN)_(n)/(AlN)_(n)(001)superlattices has been calculated by means of semi-empirical tight-bin ding sp^(3)s^(*) method.The superlattices energy gap dependence on layer...The band structure of the short period zinc-blende(GaN)_(n)/(AlN)_(n)(001)superlattices has been calculated by means of semi-empirical tight-bin ding sp^(3)s^(*) method.The superlattices energy gap dependence on layer number n is given out.On the basis of the calculated eigenfunctions and eigenvalues of the superlattices(SL),the imaginary Parts of the dielectric function ε2(ω) of(GaN)_(n)/(AlN)_(n)(001)superlattices were obtained.In order to compare with the optical properties of bulk zinc-blende GaN and AlN,we also calculated ε2(ω) of the two compounds.It is shown that there are some discernible effects due to confinement and superlattice periodicity.展开更多
Supercell self-consistent calculation of band structures of(ZnS)_(n)/(Si_(2))_(n) (110) (n=2,3,4,5)has been performed by means of linear muffin-tin orbitals method.The valence-band offset of such systems is calculated...Supercell self-consistent calculation of band structures of(ZnS)_(n)/(Si_(2))_(n) (110) (n=2,3,4,5)has been performed by means of linear muffin-tin orbitals method.The valence-band offset of such systems is calculated by frozen optential method and their Joint density of states has been computed by tetrahedron method.Our results show that the(ZnS)n/(Si_(2))n(110)superlattices have a large valence-band offset and their optical properties integrate exellent optical properties of bulk ZnS and that of Si.展开更多
文摘所有栖息在植物宿主上的微生物被称为植物微生物组。随着高通量测序的发展,植物微生物组作为一个复杂的生态系统已经被广泛关注。植物微生物组群落的结构和功能等方面已得到了深入细致的研究,而植物与微生物组的互作机制仍有待探索。全基因组关联分析(Genome-Wide Association Analysis Study, GWAS)作为一种有效的手段已经被用来研究宿主和微生物组之间的关系。本文基于国内外最新研究进展,从以下方面进行综述,包括植物对微生物组的调控,以及如何应用GWAS研究植物与微生物组互作遗传机制,重点阐述了植物与微生物组关联分析中微生物组作为“拓展表型”数据的选择,并且总结了植物宿主影响微生物组的遗传机制,旨在阐明宿主遗传因素对微生物组的调控,增进对植物与微生物组互作的理解。
基金Supported by the National Natural Science Foundation of China under Grant No.19574041the Xiamen Photoelectron Company.
文摘The electronic structure of InAs_(0.25)P_(0.75)/InP strained quantum wires grown on InP(001)oriented substrates is studied within the framework of effective-mass envelope-function theory.At theΓpoint,the electron and valence subband energy levels with and without spin-split-off band,and the absorption spectra are calculated.The effects of strain and spin-split-off band on valence energy levels are presented.The results show that the uppermost valence subband is almost unaffected by the strain induced coupling between the heavy-and light-hole bands and the spin-split-off bands while the other subbands are more markedly affected in the InAs0.25P0.75/InP strained quantum wires.
基金Supported by the National Natural Science Foundation of China under Grant No.19404011,and the 863 High Technology Program of China(863-715-10).
文摘The band structure of the short period zinc-blende(GaN)_(n)/(AlN)_(n)(001)superlattices has been calculated by means of semi-empirical tight-bin ding sp^(3)s^(*) method.The superlattices energy gap dependence on layer number n is given out.On the basis of the calculated eigenfunctions and eigenvalues of the superlattices(SL),the imaginary Parts of the dielectric function ε2(ω) of(GaN)_(n)/(AlN)_(n)(001)superlattices were obtained.In order to compare with the optical properties of bulk zinc-blende GaN and AlN,we also calculated ε2(ω) of the two compounds.It is shown that there are some discernible effects due to confinement and superlattice periodicity.
基金Supported by the National Natural Science Foundation of China。
文摘Supercell self-consistent calculation of band structures of(ZnS)_(n)/(Si_(2))_(n) (110) (n=2,3,4,5)has been performed by means of linear muffin-tin orbitals method.The valence-band offset of such systems is calculated by frozen optential method and their Joint density of states has been computed by tetrahedron method.Our results show that the(ZnS)n/(Si_(2))n(110)superlattices have a large valence-band offset and their optical properties integrate exellent optical properties of bulk ZnS and that of Si.
