title: [Structural and functional reorganization of photosynthetic apparatus in cold adaptation of wheat plants].
abstract: The structural and functional characteristics of the photosynthetic apparatus (PSA) and the cold resistance of wheat seedlings were studied during low-temperature adaptation. It has been established that large chloroplasts with thylakoid system of "sun type" forme in the mesophyll cells in the early hours of plants hardening. At the same time the functional reorganization of the PSA in the leaves of wheat occurs: content of pigments changes, stabilization of the pigment-protein complexes is observed, non-photochemical quenching of excess energy increases. The stabilization of photosynthesis during cold adaptation occurs due to structural and functional reorganization of the PSA. It is assumed that the reorganization of the PSA is a prerequisite for formation of increased cold resistance of leaf cells, and this, along with other physiological and biochemical changes occurring in cells and tissues of plants, allows the plants to survive in chilling.
authors: Ju V
authors: JV
authors: Venzhik
authors: D F
authors: DF
authors: Titov
authors: V V
authors: VV
authors: Talanova
authors: E D
authors: ED
authors: Miroslavov
authors: N K
authors: NK
authors: Koteeva
mesh_terms: D000064:Acclimatization / Q000502:physiology; D000222:Adaptation, Physiological; D002734:Chlorophyll; D002736:Chloroplasts / Q000378:metabolism; D003080:Cold Temperature; D010788:Photosynthesis / Q000502:physiology*; D018515:Plant Leaves / Q000378:metabolism; D036226:Seedlings; D020524:Thylakoids / Q000378:metabolism; D014908:Triticum / Q000378:metabolism / Q000502:physiology / Q000648:ultrastructure
chemical_list: D002734:Chlorophyll