3 rezultatet
The aim of this work was to examine the role of fructose 2,6-bisphosphate (Fru-2,6-P2) in photosynthetic carbon partitioning. The amount of Fru-2,6-P2 in leaves of tobacco (Nicotiana tabacum L. cv. Samsun) was reduced by introduction of a modified mammalian gene encoding a functional
The regulation of 2-carboxyarabinitol 1-phosphatase (CA 1-Pase) by phosphorylated effectors was studied with enzyme purified from tobacco (Nicotiana tabacum) leaves. CA 1-Pase activity was most stimulated by fructose 1,6-bisphosphate, exhibiting an A(0.5) value of 1.9 millimolar and a 10-fold
Starch synthesis in leaves was increased by phosphate starvation or by treatments which decreased cytoplasmic orthophosphate levels (such as mannose feeding). Usually less than 30% of the total carbon fixed during CO(2) assimilation was incorporated into starch in spinach (Spinacia oleracea L.),