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Kali komarovii (Amaranthaceae) is a xero-halophyte with facultative NADP-ME subtype of C4 photosynthesis

Kali komarovii is a representative of C٤NADP-ME annual species of sect.‎ Kali (subfam.‎ Salsoloideae offam.‎ Amaranthaceae‏).‎ This species is genetically close (Ney’s distance is 0.‎16–0.‎17) to K.‎ paulsenii and K.tragus, which are similar species of this section of the Central Asian desert flora.‎ The difference is that K.‎komarovii inhabits Japanese Sea coasts and occurs at 9000–10,000 km away from Central Asia.‎ Compar-ative analysis of K.‎ komarovii and arid NADP-ME xero-halophytes (K.‎ paulsenii, K.‎ tragus) and NAD-MEhalophytes (Caroxylon incanescens, Climacoptera lanata) was carried out using anatomical, physiologicaland population genetic methods aimed to reveal structural and functional rearrangements, which pro-vide the adaptation of NADP-ME species to saline, wet and cool conditions of sea coasts.‎ The analysisof changes in Na+and K+accumulations, the Na+/K+ratio, water content and quantitative parameters ofphotosynthetic apparatus in K.‎ komarovii showed less expressed NADP-ME, but more expressed NAD-ME features.‎ A unique characteristic of K.‎ komarovii is the formation of specific structural-functional subtypeC٤ photosynthesis related to adaptation to low temperatures, which differs from desert ancient NAD-ME subtype.‎ Thus K.‎ komarovii is identified as a species with a facultative NADP-ME or intermediate NADP-ME− NAD-ME subtype C٤ photosynthesis based on anatomical, biochemical and genetic characteristics.‎

Authors: 
O.L.‎ Burundukova, E.V.‎ Shuyskaya, Z.F.‎ Rakhmankulova, E.V.‎ Burkovskayaa, E.V.‎ Chubar, L.G.‎ Gismatullina, K.N.‎ Toderich
Year: 
۲۰۱۷
Publication type: 
Scientific Paper
Publication Source: 
Flora
Volume/Chapter/Issue: 
۲۲۷
Page Number: 
۲۵-۳۵