The structure of the mesophyll and assimilative apparatus of the chloridoid grasses leaves

The structure of the mesophyll and assimilative apparatus of leaf blades and leaf sheaths was studied atchloridoid grasses Aeluropus intermedius, Cleistogenes squarrosa, Crypsis aculeata and Tripogon chinensis, growing indifferent habitats of Siberia. All plant species are characterized by the manifestation of C4-coronary syndrome. Spatialforms of mesophyll cells radially arranged around Kranz cells and intercostal zone cells were considered. It is shown, thatleaf mesophyll at xerophytes Cleistogenes squarrosa and Tripogon chinensis is composed of cellular cells. At the grasses of saline habitats Aeluropus intermedius and Crypsis aculeata, a simplification of the shape of mesophyll cells is observed, primarily in the intercostal zone and to a greater extent, in leaf sheaths. According to the density of chloroplasts inthe leaf mesophyll, chloridoid С4-grasses approach to mesophytic and xeromesophytic С3-grasses.