Structural changes of lamellar cells in leaves of the moss Polytrichum formosum Hedw. during winter freezing and thawing processes

[摘要] The lamellar cells of winter leaves of Polytrichum formosum were studied by electron microscopy of thin sections, and the results were compared with those for spring and summer plants. Pigment content and photosynthetic activity were...

[学科分类] 植物学

[关键词] Polytrichum formosum;leaves;ultrastructure;pigment;photosynthesis;lamellar cell;freezing;thawing