title: [Spin-lattice relaxation of water protons in plant and animal cells].
abstract: NMR-spin echo method has been used to study spin-lattice relaxation time of protons T1 in plant and animal cells - muscle tissue of fish, the cells of which unlike plant cells have no developed system of vacuoles, plastids and a solid cell wall. According to the values of T1 time a new NMR parameter K, a coefficient of relaxation effectiveness of a cell structure, has been calculated. This parameter can be used for quantitative characterization of the influence of different cell structures, the tissue water interact with, for a time of spin-lattice relaxation of water protons. It has been ascertained that the values of K coefficient in animal tissue and in storing tissues of some plants differ little; it may be stipulated by permanent transmembrane water exchange which occurs at high rate in the living cell. It has been concluded that there exists a certain similarity between water state in protoplast of plant and animal cells.
authors.forename: F D
authors.initials: FD
authors.lastname: Samuilov
authors.forename: E A
authors.initials: EA
authors.lastname: Nikiforov
authors.forename: V I
authors.initials: VI
authors.lastname: Nikiforova
mesh_terms: D000818:Animals; D055592:Biophysical Phenomena; D005399:Fishes / Q000502:physiology*; D009682:Magnetic Resonance Spectroscopy; D059828:Plant Cells / Q000737:chemistry*; D011522:Protons; D013113:Spin Labels; D014867:Water / Q000737:chemistry*
chemical_list: D011522:Protons; D013113:Spin Labels; D014867:Water