ArticlePlant physiology2012
Pyrophosphate-dependent fructose-6-phosphate 1-phosphotransferase induction and attenuation of Hsp gene expression during endosperm modification in quality protein maize.
Article in Plant physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 29 citations in OpenAlex.
- The bZIP transcription factor RISBZ1 balances grain filling and ER stress response in rice grains.Plant communications · 2025Article
- Identification of theMolecular breeding : new strategies in plant improvement · 2025Article
- Editing the 19 kDa alpha-zein gene family generates non-opaque2-based quality protein maize.Plant biotechnology journal · 2024Article
- Mechanism of [COInternational journal of molecular sciences · 2022Article
- iTRAQ-based quantitative proteomic analysis of heat stress-induced mechanisms in pepper seedlings.PeerJ · 2021Article
- A review of starch biosynthesis in cereal crops and its potential breeding applications in rice (PeerJ · 2021Article
- The defective effect of starch branching enzyme IIb from weak to strong induces the formation of biphasic starch granules in amylose-extender maize endosperm.Plant molecular biology · 2020Article
- Long-read sequencing reveals genomic structural variations that underlie creation of quality protein maize.Nature communications · 2020Article
- Pyrophosphate-fructose 6-phosphate 1-phosphotransferase (PFP1) regulates starch biosynthesis and seed development via heterotetramer formation in rice (Oryza sativa L.).Plant biotechnology journal · 2020Article
- Morphological Changes and Expressions ofFrontiers in plant science · 2019Article
- Functions of maize genes encoding pyruvate phosphate dikinase in developing endosperm.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Responses to Hypoxia and Endoplasmic Reticulum Stress Discriminate the Development of Vitreous and Floury Endosperms of Conventional Maize (Frontiers in plant science · 2017Article
- A Population of Deletion Mutants and an Integrated Mapping and Exome-seq Pipeline for Gene Discovery in Maize.G3 (Bethesda, Md.) · 2016Article
- Proteomic profiling of maize opaque endosperm mutants reveals selective accumulation of lysine-enriched proteins.Journal of experimental botany · 2016Article
- Genetic and molecular characterization of submergence response identifies Subtol6 as a major submergence tolerance locus in maize.PloS one · 2015Article
- Differential Expression Analysis in RNA-Seq by a Naive Bayes Classifier with Local Normalization.BioMed research international · 2015Article
- Pullulanase and Starch Synthase III Are Associated with Formation of Vitreous Endosperm in Quality Protein Maize.PloS one · 2015Article
- Recent advances in the study of prolamin storage protein organization and function.Frontiers in plant science · 2014Review
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Quality Protein Maize (QPM) is a hard-endosperm version of the high-lysine opaque2 (o2) maize (Zea mays) mutant, but the genes involved in modification of the soft o2 endosperm are largely unknown. Pyrophosphate-dependent fructose-6-phosphate 1-phosphotransferase (PFP) catalyzes the ATP-independent conversion of fructose-6-phosphate to fructose-1,6-bisphosphate in glycolysis. We found a large increase in transcript and protein levels of the α-regulatory subunit of PFP (PFPα) in QPM endosperm. In vitro enzyme assays showed a significant increase in forward PFP activity in developing endosperm extracts of QPM relative to the wild type and o2. An expressed retrogene version of PFPα of unknown function that was not up-regulated in QPM was also identified. The elevated expression levels of a number of ATP-requiring heat shock proteins (Hsps) in o2 endosperm are ameliorated in QPM. PFPα is also coinduced with Hsps in maize roots in response to heat, cold, and the unfolded protein response stresses. We propose that reduced ATP availability resulting from the generalized Hsp response in addition to the reduction of pyruvate, orthophosphate dikinase activity in o2 endosperm is compensated in part by increased PFP activity in QPM.
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