C4 evolutionC4 PEPC evolutionFlaveriaC4 plants are known to be of polyphyletic origin and to have evolved independently several times during the evolution of angiosperms. This implies that the C4 isoform of phospho enolpyruvate carboxylase (PEPC) originated from a nonphotosynthetic PEPC gene that was...
C4 plants had evolved the C4 pathway to overcome low CO 2 and photorespiration. This review first focuses on the generation of a system for high level expression of the C4-specific gene for pyruvate, orthophosphate dikinase ( Pdk ), one of the key enzyme in C4 photosynthesis. Based on the...
The evolution of C4photosynthesis requires an intermediate phase where photorespiratory glycine produced in the mesophyll cells must flow to the vascular sheath cells for metabolism by glycine decarboxylase. This glycine flux concentrates photorespired CO2within the sheath cells, allowing it to be efficien...
The evolution of β-CAs involved in the C4 photosynthetic pathway will be the focus of this review. In the leaves of C4 plants, the highest β-CA activity is found in the cytosol of mesophyll cells [5, 6]. Like all other known CAs, these C4-associated isoforms catalyze the reversible ...
1nrecentyears.avastamountofcornPleteandfrag— mentalsequenceinformationonPEPCsfromthegrassfam— ilyPoaceae,thelargestfamilyofC4一plants,wasunraveled (ChristinetaI.,2007). 1nordertoextendouranalysisontheimportanceofresi— due884fF/averianumbering)onPEPCfeedbackinhibitorsen— sitivity,wecomparedtheF/averiaPEPCs...
Multiple origins of the C4 pathway within some angiosperm families [8,9] imply that its evolution may not be complex, perhaps suggesting that there may have been genetic pre- deposition in some C3 plants to C4 evolution [6]. The high photosynthetic capacity of C4 plants is due to their ...
Evolution of C4 phosphoenolpyruvate carboxylase. C4 plants are known to be of polyphyletic origin and to have evolved independently several times during the evolution of angiosperms. This implies that the... P Svensson,OE Bl?Sing,P Westhoff - 《Archives of Biochemistry & Biophysics》 被引量: 371...
To date, few research have been reported on the evolution of C3/C4 vegetation in southern China, and the main mechanism influencing the evolution of C3/C4 vegetation is unclear. That makes it difficult for researchers to understand the competition mechanism of C3 and C4 plants under different cl...
Several major vegetation changes are documented in the fossil record, including the shift from ecosystems dominated by free-sporing plants to seed plants5 and the radiation and ecological expansion of angiosperms4,6,7, which today dominate the natural vegetation in most terrestrial biomes (excluding ...
C3 and C4 plants]]>doi:10.1111/j.1365-3040.2012.02585.xcavitation repairhydraulic conductanceBundle sheath (BS) anatomy is found in most C4 lineages, associated with low inter-veinal distances (IVD) and high BS:mesophyll ratio (BS:MC). The origins, function and selective advantages of the ...