Article
Article name Comparative-anatomical Study of Assimilative Tissue at Crypsis aculeata (L.) Aiton and Juncellus pannonicus (Jacq.) Clarke with C4-Photosynthetic Metabolism
Authors Zvereva G.K. Doctor of Science (Biology), senior research assistant, labsp@ngs.ru
Bibliographic description Zvereva G. K. Comparative-anatomical Study of Assimilative Tissue at Crypsis aculeata (L.) Aiton and Juncellus pannonicus (Jacq.) Clarke with C4-Photosynthetic Metabolism // Scholarly Notes of Transbaikal State University. Series Biological sciences. 2018. Vol. 13, No. 1. PP. 6–15. DOI: 10.21209/2500-1701-2018-13-1-6-15.
Section Ecology
UDK 582.4/.9-18
DOI 10.21209/2500-1701-2018-13-1-6-15
Article type
Annotation The article analyzes the chlorenchyma structure of leaf blades and stems in annual plants Crypsis aculeata (Poaceae) and Juncellus pannonicus (Cyperaceae) growing in the south-west of the Altai Krai. Crypsis aculeata is more widespread than Juncellus pannonicus. Both plant species are characterized by the manifestation of C4-coronary syndrome. Crypsis aculeata belongs to the NAD-malic enzyme (NAD–ME) biochemical type and is highly resistant to salinity. A malate variant of the C4-syndrome (NADP–ME subtype) is observed in Juncellus pannonicus and strengthening succulence is found in the conditions of salt stress. The vegetative organs of Juncellus pannonicus contain 1.2–2.6 times more Kranz-cells in comparison with Crypsis aculeata because of their smaller sizes and more frequent arrangement of conducting bunches. The article shows that in the cellular organization of chlorenchyma there are some differences due to the features of the C3-structure of the mesophyll, as a more ancient characteristic. In the structure of the chlorenchyma of the vegetative organs of Crypsis aculeate there are complex cellular and semi-cellular forms of cells that are radially located around the Kranz bundle sheath. The development of tissue from colorless cells is accompanied by the enlargement of the size and simplification of cellular configurations between coronary structures. Chlorenchyma of leaves and stems of Juncellus pannonicus is formed by simple cells.
Key words Poaceaе, Cyperaceae, leaf blade, stem, Kranz anatomy, chlorenchyma, cellular cells
Article information
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Full articleComparative-anatomical Study of Assimilative Tissue at Crypsis aculeata (L.) Aiton and Juncellus pannonicus (Jacq.) Clarke with C4-Photosynthetic Metabolism