title: Clinorotation affects mesophyll photosynthetic cells in leaves of pea seedlings.
abstract: Experiments with autotrophs in altered gravity condition have a grate significant for development of space biology. The main results of investigation in the photosynthetic apparatus state under microgravity condition have based on the experiments with maturity plants and their differentiated cells. The structural and functional organization of photosynthetic cells in seedlings is poor understandable still. Along  with  chloroplasts  preserving a native membrane system in palisade parenchyma cells of the 29-day pea plant leaves in microgravity, chloroplasts with fribly packed or damaged granae, whose thylakoids appeared as vesicles with an electrontransparent content, were also observed. The investigation of preceding process induced these effects have a sense. That is why, the goal of our experiments was to perform the study of a structural organization of the photosynthetic cells of 3-d pair of pea seedlings leaves under the influence of clinorotation.
authors.affiliation: Institute of Botany, National Academy Science of Ukraine, Kiev.
authors.forename: N I
authors.initials: NI
authors.lastname: Adamchuk
mesh_terms: D002734:Chlorophyll / Q000378:metabolism; D002736:Chloroplasts / Q000378:metabolism / Q000648:ultrastructure; D006112:Gravitation; D008928:Mitochondria / Q000378:metabolism; D018532:Pisum sativum / Q000166:cytology / Q000378:metabolism / Q000648:ultrastructure; D018515:Plant Leaves / Q000166:cytology / Q000378:metabolism / Q000648:ultrastructure*; D018520:Plant Shoots / Q000166:cytology / Q000378:metabolism / Q000648:ultrastructure*; D012399:Rotation
chemical_list: D002734:Chlorophyll