M. Rodriguez-Concepcion

Boosting pro-vitamin A content and bioaccessibility in leaves by combining engineered biosynthesis and storage pathways with high-light treatments

This paper combines engineered biosynthesis and storage pathways with high-light treatments to significantly boost pro-vitamin A content and bioaccessibility in leafy vegetables.

Metabolic crosstalk between hydroxylated monoterpenes and salicylic acid in tomato defence response against Pseudomonas syringae pv tomato

This study shows that hydroxylated monoterpenes (HMTPs) and salicylic acid (SA) interact metabolically in tomato plants to enhance defense against Pseudomonas syringae pv tomato through stomatal closure and PR1 induction.

Tomato geranylgeranyl diphosphate synthase isoform 1 specifically interacts with phytoene synthase isoform 3 to produce strigolactones in tomato roots.

This study identifies SlG1 as a root-specific GGPP synthase that interacts with PSY3 to produce strigolactones in tomato roots, without affecting ABA or shoot development.

Overlapping and specialized roles of tomato phytoene synthase isoforms PSY1 and PSY2 in carotenoid and ABA production

This study investigates the roles of tomato PSY1 and PSY2 isoforms in carotenoid and ABA production, showing tissue-specific contributions and distinct functions in fruit development and seed germination.

Arabidopsis FIBRILLIN6 regulates carotenoid biosynthesis by directly promoting phytoene synthase activity

This study shows that FIBRILLIN6 interacts with phytoene synthase to enhance carotenoid biosynthesis in Arabidopsis.

Novel insights on the contribution of plastoglobules and reactive oxygen species to chromoplast differentiation

The paper shows that inducing phytoene synthase in leaf chloroplasts leads to chromoplast differentiation, with plastoglobules accumulating carotenoids and other isoprenoids, and that reactive oxygen species promote this process.

Allosteric feedback inhibition of deoxy-D-xylulose-5-phosphate synthase involves monomerization of the active dimer.

The paper investigates how IPP and DMAPP feedback regulate DXS enzyme activity by inducing monomerization, which affects enzyme stability and pathway flux.

Chloroplast protein import determines plant proteostasis and retrograde signaling

This study shows that chloroplast protein import and proteases regulate polyQ proteostasis in plants, with implications for human disease therapy.

Biosynthesis and apoplast accumulation of the apocarotenoid pigment azafrin in parasitizing roots of Escobedia grandiflora

This study identifies azafrin as the orange pigment in Escobedia grandiflora roots, reveals its biosynthesis via a CCD enzyme, and suggests its role in parasitization.

Conserved and newly acquired roles of PIF1 homologs in tomato (Solanum lycopersicum)

This study examines PIF1 homologs in tomato, showing conserved and new roles compared to Arabidopsis, with PIF1a having additional functions in root hair elongation and fruit development.

Manipulation of carotenoid metabolism stimulates biomass and stress tolerance in tomato

This study shows that modifying carotenoid metabolism in tomato improves biomass, stress tolerance, and yield while enhancing nutritional value and shelf life.

Carotenoid and tocopherol fortification of zucchini fruits using a viral RNA vector

This paper demonstrates a method to fortify zucchini fruits with carotenoids and tocopherols using a viral RNA vector without transgenic DNA.

The intrinsic chaperone network of Arabidopsis stem cells confers protection against proteotoxic stress

This study identifies enhanced proteostasis mechanisms in Arabidopsis root stem cells that protect against proteotoxic stress by maintaining protein homeostasis through high levels of TRiC/CCT chaperones.

Light quality signals generated by vegetation shade facilitate acclimation to reduced light quantity in shade-avoider plants

This study shows that low R:FR light signals help shade-avoider plants improve their photoacclimation to reduced light quantity by triggering molecular and developmental changes.

Synthetic biogenesis of chromoplasts from leaf chloroplasts

This study shows that artificially increasing phytoene production in chloroplasts triggers chromoplast differentiation in leaves, requiring reduced photosynthesis and increased carotenoid synthesis.