FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2157232904> ?p ?o ?g. }

• W2157232904 endingPage "83" @default.
• W2157232904 startingPage "69" @default.
• W2157232904 abstract "This study tests the hypotheses that in vivo oxygen levels inside developing maize grains locally affect assimilate partitioning and ATP distribution within the kernel. These questions were addressed through combined topographical analysis (O2- and ATP-mapping), metabolite profiling, and isotope flux analysis. Internal and external oxygen levels were also experimentally altered. Under ambient conditions, mean O2 concentration immediately inside starchy endosperm dropped to only 1.4% of atmospheric saturation (approximately 3.8 microm), but was 10-fold higher in the oil-storing embryo. Increasing the O2 supply to intact kernels stimulated their O2 demand, shifted ATP localization within the kernel, and elevated their ATP/ADP ratio. Enhanced O2 availability also increased steady-state levels of glycolytic intermediates and those of the citric acid cycle, as well as some related pools of free amino acids. Subsequent analyses indicated that starch formation within endosperm, but not lipid biosynthesis within embryo, was adapted to the endogenous low oxygen. Increasing the O2 supply did not change ADP-glucose levels, activity of ADP-glucose pyrophosphorylase, 13C-labeling of ADP-glucose, or flux of 14C-sucrose into starch. In contrast, enhanced O2 availability increased 14C-label uptake into the embryo, 13C-labeling of acetyl-coenzyme A, and finally 14C-incorporation into lipids. Lipid accumulation in embryo appeared highest in regions with higher ATP. Consistent with labeling data, a decrease in O2 supply most strongly affected the embryo, whereas rising O2 levels expanded ATP-rich zones toward the starch-storing endosperm and the scutellar part of embryo. The latter might be responsible for higher 14C-label uptake into the embryo and flux toward lipid. Collectively, data indicate that the in vivo oxygen distribution in maize kernels markedly affects ATP gradients, metabolite levels, and favors assimilate partitioning toward starch within the O2-depleted endosperm. Clear advantages are thus evident for peripheral localization of the protein and lipid storing structures in maize kernels." @default.
• W2157232904 created "2016-06-24" @default.
• W2157232904 creator A5029983579 @default.
• W2157232904 creator A5037156038 @default.
• W2157232904 creator A5051635531 @default.
• W2157232904 creator A5075360838 @default.
• W2157232904 date "2005-03-17" @default.
• W2157232904 modified "2023-10-10" @default.
• W2157232904 title "Positional cues for the starch/lipid balance in maize kernels and resource partitioning to the embryo" @default.
• W2157232904 cites W1211988174 @default.
• W2157232904 cites W1511395346 @default.
• W2157232904 cites W1534031358 @default.
• W2157232904 cites W1543827569 @default.
• W2157232904 cites W1603101911 @default.
• W2157232904 cites W1827603822 @default.
• W2157232904 cites W1842001442 @default.
• W2157232904 cites W189829990 @default.
• W2157232904 cites W1964849586 @default.
• W2157232904 cites W1966708004 @default.
• W2157232904 cites W1968947074 @default.
• W2157232904 cites W1970604878 @default.
• W2157232904 cites W1973263422 @default.
• W2157232904 cites W1974988755 @default.
• W2157232904 cites W1977613608 @default.
• W2157232904 cites W1978349310 @default.
• W2157232904 cites W1981266365 @default.
• W2157232904 cites W1993688291 @default.
• W2157232904 cites W1994277008 @default.
• W2157232904 cites W2001677572 @default.
• W2157232904 cites W2006518267 @default.
• W2157232904 cites W2015461026 @default.
• W2157232904 cites W2015637535 @default.
• W2157232904 cites W2017625158 @default.
• W2157232904 cites W2022527396 @default.
• W2157232904 cites W2023069130 @default.
• W2157232904 cites W2024599020 @default.
• W2157232904 cites W2028314266 @default.
• W2157232904 cites W2032221951 @default.
• W2157232904 cites W2036727863 @default.
• W2157232904 cites W2036801881 @default.
• W2157232904 cites W2043774606 @default.
• W2157232904 cites W2058020037 @default.
• W2157232904 cites W2060092965 @default.
• W2157232904 cites W2060441974 @default.
• W2157232904 cites W2061163885 @default.
• W2157232904 cites W2069498457 @default.
• W2157232904 cites W2074803924 @default.
• W2157232904 cites W2084584778 @default.
• W2157232904 cites W2088883992 @default.
• W2157232904 cites W2089904284 @default.
• W2157232904 cites W2091192245 @default.
• W2157232904 cites W2099626579 @default.
• W2157232904 cites W2100486181 @default.
• W2157232904 cites W2106508578 @default.
• W2157232904 cites W2108934893 @default.
• W2157232904 cites W2111278461 @default.
• W2157232904 cites W2112175004 @default.
• W2157232904 cites W2121056582 @default.
• W2157232904 cites W2128861824 @default.
• W2157232904 cites W2129508992 @default.
• W2157232904 cites W2136100942 @default.
• W2157232904 cites W2143461992 @default.
• W2157232904 cites W2149522783 @default.
• W2157232904 cites W2152760462 @default.
• W2157232904 cites W2158695142 @default.
• W2157232904 cites W2162438123 @default.
• W2157232904 cites W2163625628 @default.
• W2157232904 cites W2166069609 @default.
• W2157232904 cites W2171766276 @default.
• W2157232904 cites W2300552860 @default.
• W2157232904 cites W4229891254 @default.
• W2157232904 cites W4236711844 @default.
• W2157232904 doi "https://doi.org/10.1111/j.1365-313x.2005.02352.x" @default.
• W2157232904 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15773854" @default.
• W2157232904 hasPublicationYear "2005" @default.
• W2157232904 type Work @default.
• W2157232904 sameAs 2157232904 @default.
• W2157232904 citedByCount "99" @default.
• W2157232904 countsByYear W21572329042012 @default.
• W2157232904 countsByYear W21572329042013 @default.
• W2157232904 countsByYear W21572329042014 @default.
• W2157232904 countsByYear W21572329042015 @default.
• W2157232904 countsByYear W21572329042016 @default.
• W2157232904 countsByYear W21572329042017 @default.
• W2157232904 countsByYear W21572329042018 @default.
• W2157232904 countsByYear W21572329042019 @default.
• W2157232904 countsByYear W21572329042020 @default.
• W2157232904 countsByYear W21572329042021 @default.
• W2157232904 countsByYear W21572329042022 @default.
• W2157232904 countsByYear W21572329042023 @default.
• W2157232904 crossrefType "journal-article" @default.
• W2157232904 hasAuthorship W2157232904A5029983579 @default.
• W2157232904 hasAuthorship W2157232904A5037156038 @default.
• W2157232904 hasAuthorship W2157232904A5051635531 @default.
• W2157232904 hasAuthorship W2157232904A5075360838 @default.
• W2157232904 hasConcept C113442657 @default.
• W2157232904 hasConcept C196843134 @default.
• W2157232904 hasConcept C20251656 @default.

• next