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Callose plays an important role in fragmoplast formation at cytokinesis and differentiation of pores in the phloem, as well as within the courses of microsporogenesis, functioning of stomata closure cells, and protection of plant cells from biotic and abiotic stresses. Special attention is given to consideration of callose functions and its synthesis.(More)
A comparative analysis of the cellular ultrastructure and pigment content of both underwater and above-water Sagittaria sagittifolia leaves was conducted by means of the method of transmission electron microscopy and spectrophotometric analysis. Considerable distinctions of the S. sagittifolia ultrastructure, photosynthesizing cells of underwater leaves in(More)
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