Development of a Real-Time Stereo Transmission Electron Microscope

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Proof of the Bloch-Messiah Theorem in the THFB Theory (原子核集団運動の非線形動力学(研究会報告))

It is shown that application of the thermo field dynamics to the thermal Hartree-Fock-Bogoliubov (THFB) approximation leads to the extended form of the Bloch-Messiah theorem for the finite temperature formalism. The generalized Bogoliubov transformation is brought to the canonical form on the enlarged operator space including tilded operators, and newly defined single-particle density matrix and pair tensor take into account the thermal fluctuation effect of Fermion number.rights: 素粒子論グループ 素粒子研究編集部 rights: 本文データは学協会の許諾に基づきCiNiiから複製したものである relation: IsVersionOf: http://ci.nii.ac.jp/naid/110006454123/textapplication/pdfjournal articl

NLR locus-mediated trade-off between abiotic and biotic stress adaptation in Arabidopsis

Osmotic stress caused by drought, salt or cold decreases plant fitness. Acquired stress tolerance defines the ability of plants to withstand stress following an initial exposure. We found previously that acquired osmotolerance after salt stress is widespread among Arabidopsis thaliana accessions. Here, we identify ACQOS as the locus responsible for ACQUIRED OSMOTOLERANCE. Of its five haplotypes, only plants carrying group 1 ACQOS are impaired in acquired osmotolerance. ACQOS is identical to VICTR, encoding a nucleotide-binding leucine-rich repeat (NLR) protein. In the absence of osmotic stress, group 1 ACQOS contributes to bacterial resistance. In its presence, ACQOS causes detrimental autoimmunity, thereby reducing osmotolerance. Analysis of natural variation at the ACQOS locus suggests that functional and non-functional ACQOS alleles are being maintained due to a trade-off between biotic and abiotic stress adaptation. Thus, polymorphism in certain plant NLR genes might be influenced by competing environmental stresses.journal articl