PMID- 21325606 OWN - NLM STAT- MEDLINE DCOM- 20121018 LR - 20110609 IS - 1460-2431 (Electronic) IS - 0022-0957 (Linking) VI - 62 IP - 9 DP - 2011 May TI - Development of structural and biochemical characteristics of C(4) photosynthesis in two types of Kranz anatomy in genus Suaeda (family Chenopodiaceae). PG - 3197-212 LID - 10.1093/jxb/err021 [doi] AB - Genus Suaeda (family Chenopodiaceae, subfamily Suaedoideae) has two structural types of Kranz anatomy consisting of a single compound Kranz unit enclosing vascular tissue. One, represented by Suaeda taxifolia, has mesophyll (M) and bundle sheath (BS) cells distributed around the leaf periphery. The second, represented by Suaeda eltonica, has M and BS surrounding vascular bundles in the central plane. In both, structural and biochemical development of C(4) occurs basipetally, as observed by analysis of the maturation gradient on longitudinal leaf sections. This progression in development was also observed in mid-sections of young, intermediate, and mature leaves in both species, with three clear stages: (i) monomorphic chloroplasts in the two cell types in younger tissue with immunolocalization and in situ hybridization showing ribulose bisphosphate carboxylase oxygenase (Rubisco) preferentially localized in BS chloroplasts, and increasing in parallel with the establishment of Kranz anatomy; (ii) vacuolization and selective organelle positioning in BS cells, with occurrence of phosphoenolpyruvate carboxylase (PEPC) and immunolocalization showing that it is preferentially in M cells; (iii) establishment of chloroplast dimorphism and mitochondrial differentiation in mature tissue and full expression of C(4) biochemistry including pyruvate, Pi dikinase (PPDK) and NAD-malic enzyme (NAD-ME). Accumulation of rbcL mRNA preceded its peptide expression, occurring prior to organelle positioning and differentiation. During development there was sequential expression and increase in levels of Rubisco and PEPC followed by NAD-ME and PPDK, and an increase in the (13)C/(12)C isotope composition of leaves to values characteristic of C(4) photosynthesis. The findings indicate that these two forms of NAD-ME type C(4) photosynthesis evolved in parallel within the subfamily with similar ontogenetic programmes. FAU - Koteyeva, Nuria K AU - Koteyeva NK AD - Laboratory of Anatomy and Morphology, V. L. Komarov Botanical Institute of Russian Academy of Sciences, Professor Popov Street 2, 197376, St Petersburg, Russia. FAU - Voznesenskaya, Elena V AU - Voznesenskaya EV FAU - Berry, James O AU - Berry JO FAU - Chuong, Simon D X AU - Chuong SD FAU - Franceschi, Vincent R AU - Franceschi VR FAU - Edwards, Gerald E AU - Edwards GE LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20110216 PL - England TA - J Exp Bot JT - Journal of experimental botany JID - 9882906 RN - 0 (Carbon Isotopes) RN - EC 1.1.1.37 (Malate Dehydrogenase) RN - EC 1.1.1.38 (malate dehydrogenase-(oxaloacetate-decarboxylating) (NAD+)) RN - EC 2.7.9.1 (Pyruvate, Orthophosphate Dikinase) RN - EC 4.1.1.31 (Phosphoenolpyruvate Carboxylase) RN - EC 4.1.1.39 (Ribulose-Bisphosphate Carboxylase) SB - IM MH - Carbon Isotopes/analysis MH - Chenopodiaceae/genetics/growth & development/*physiology/ultrastructure MH - Chloroplasts/enzymology/ultrastructure MH - Gene Expression Regulation, Plant MH - Malate Dehydrogenase/metabolism MH - Mesophyll Cells/enzymology MH - Microscopy, Confocal MH - Microscopy, Electron, Scanning MH - Microscopy, Electron, Transmission MH - Mitochondria/metabolism MH - Phosphoenolpyruvate Carboxylase/metabolism MH - Photosynthesis/*physiology MH - Plant Leaves/enzymology/growth & development/physiology/ultrastructure MH - Plant Shoots/genetics/growth & development/metabolism/ultrastructure MH - Pyruvate, Orthophosphate Dikinase/metabolism MH - Ribulose-Bisphosphate Carboxylase/genetics/metabolism EDAT- 2011/02/18 06:00 MHDA- 2012/10/19 06:00 CRDT- 2011/02/18 06:00 PHST- 2011/02/18 06:00 [entrez] PHST- 2011/02/18 06:00 [pubmed] PHST- 2012/10/19 06:00 [medline] AID - err021 [pii] AID - 10.1093/jxb/err021 [doi] PST - ppublish SO - J Exp Bot. 2011 May;62(9):3197-212. doi: 10.1093/jxb/err021. Epub 2011 Feb 16.