Recent Posts

Redox regulation of NADP-malate dehydrogenase is vital under fluctuating light environment (PNAS)

Redox switches regulate photosynthetic reactions and are mediated by conserved cysteine pairs, activated by reduction under light and deactivated by oxidation in the dark. Those reactions are mediated by thioredoxins (Trx). Usually, only plastidic and not cytosolic isozymes show these redox switches.…

How circadian changes in metabolism affect hybrid vigor

Zhi Li, Andan Zhu, et al. compare inbred and hybrid lines to explore how daily changes in metabolic pathways affect hybrid vigor. The Plant Cell https://doi.org/10.1105/tpc.20.00320  Background: Heterosis or hybrid vigor refers to the superior growth or fitness in the hybrid progeny compared to one…

Unexpected Role of a TCP Transcription Factor in Seed Oil Biosynthesis

Tianhu Sun ORCID ID: 0000-0002-2513-1387 Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853 ts753@cornell.edu Plant seed oils (such as canola oil, sunflower oil, and soybean oil) are important for the human diet and store energy…

Perspective: Multiplying the efficiency and impact of biofortification through metabolic engineering (Nature Comms.)

As heterotrophs, we are what we eat. One of the UN Sustainable Development Goals is to end all forms of hunger, including the “hidden hunger” that results from nutrient deficiencies. Van Der Straeten et al. provide an overview of biofortification strategies. They review current successes from…

Post-transcriptional regulation of nutrient transporters

Author: Stefanie Wege ORCID: 0000-0002-7232-5889 stefanie.wege@adelaide.edu.au Affiliation: ARC Centre of Excellence in Plant Energy Biology, PRC, School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Waite Campus, Glen Osmond 5064, South Australia, Australia   Most…

Tracking the Courier: In Planta Imaging of NADH/NAD+ Ratios with a Genetically Encoded Biosensor

The movement of electrons between molecules and organelles via redox reactions is a cornerstone of cellular metabolism. Electron carriers such as nicotinamide adenine dinucleotide (NAD) and its phosphorylated form NADP mediate reduction or oxidation reactions via their own conversion between reduced…

The vitamin B1 family grows: detection and roles of thiamine triphosphate in plants (Plant Direct)

The term “vitamin B1” indicates a family of molecules that includes thiamine, thiamine monophosphate and thiamine diphosphate (TDP). The latter is the most famous family member and plays a pivotal role in carbon metabolism. Thanks to an optimized detection protocol, Hofmann and colleagues have demonstrated…

An Alternative Route for Astaxanthin Biosynthesis in Green Algae

Tianhu Sun ORCID ID: 0000-0002-2513-1387 Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853 ts753@cornell.edu Astaxanthin is the reddish carotenoid pigment that gives color to shrimp, salmon, and flamingo. However, these animals…

The Multifaceted Roles of Autophagy in Fixed-carbon Starvation

McLoughlin et al. uncover the critical roles of autophagy in recycling amino acids and nitrogen-rich nucleotides, adjusting respiratory substrates, and the retention of assimilated nitrogen in maize during fixed-carbon starvation. The Plant Cell (2020) https://doi.org/10.1105/tpc.20.00226  Background:…