Entries by Eva Marie Gomez Alverez

Increading Fe and Zn concentrations in wheat flour

Human malnutrition results from the lack of essential mineral micronutrients.  In particular, iron deficiency might cause anaemia and stunted development in children, while zinc deficiency might reduce immunity to infectious diseases. In bread wheat, iron and zinc are located in the embryo and aleurone. These parts of the seed are removed during the industrial-scale roller […]

Nitrogen-dependent binding of the transcription factor PBF1 contributes to the balance of protein and carbohydrate storage in maize endosperm (Plant Cell)

The majority of maize endosperm is made of starch (70%) and proteins (10%) and their biosynthesis is a complex process which involves many enzymes. N-containing compounds, such as enzymes, amino acids, and nucleotides are crucial for C metabolism. Thus, when N levels are altered, the storage of proteins and starch in maize is notably affected. […]

Root acid phosphatases and rhizobacteria synergistically enhance white lupin and rice phosphorus acquisition (Plant Physiol)

Phosphorus (P, Pi in the form of inorganic orthophosphate) is crucial for plant homeostasis because it is a plant growth-limiting factor. White lupin is an excellent crop model to study Pi changes due to the development of cluster roots (CR). CR are composed of rootlets that allow a more efficient Pi mobilization and uptake due […]

Genome-edited rice deficient in two 4CL genes display diverse lignin alterations (Plant Physiol)

Lignin is one of the most important end-products of the cinnamate/monolignol pathway and it is abundant in the secondary cell wall of vascular plants. In grasses, lignins are derived from monolignols, p-hydroxycinnamates, and a flavonoid tricin. In the proposed cinnamate/monolignol pathway, 4-COUMARATE:COENZYME A LIGASE (4CL)  modulates the pathway flux that converts hydroxycinnamic acids (such as […]

The vacuolar H+/Ca transporter CAX1 participates in submergence and anoxia stress responses (Plant Physiol)

Calcium (Ca) signaling is one of the primary plant responses to confront abiotic stresses. To coordinate Ca levels in the different compartments of the cell, several transporters are needed including the H+/Ca exchangers (CAXs) in the tonoplast (vacuolar membrane). While the role of calcium signaling has been studied for osmotic and salt stresses in plants, […]

PIF4 enhances DNA binding of CDF2 to co-regulate target gene expression and promote Arabidopsis hypocotyl cell elongation (Nature Plants)

Responses to environmental and internal signals require the recruitment of transcription factors (TFs). TFs recognize simple DNA sequences to activate specific genes that will accomplish the required functions. DOF (DNA-binding with one finger) is a large family of plant TFs that encloses the CYCLING DOF FACTORS (CDF) subfamily. CDF are regulated by the circadian clock […]

Improving bread wheat yield through modulating an unselected AP2/ERF gene (Nature Plants)

Climate emergency and the increase of human population are challenges for human food security. Plant breeders use natural genetic variation to improve crops, but bread wheat (Triticum aestivum L.) has particularly low genetic diversity with unique evolutionary constraints. Genetic modification of spike inflorescence architecture holds promise for increasing cereal yield. Thus, it is interesting to […]

A highly conserved core bacterial microbiota with nitrogen-fixation capacity inhabits the xylem sap in maize plants (Nature Comms)

Plants and microorganisms build complex associations that are essential for plant homeostasis. Studies have suggested that there is a ‘core microbiota’ that is particular to specific crops and that is inherited through generations. Targeted manipulation of crop microbiomes with the inoculation of synthetic communities (SynCom) seems to be a promising tool to develop sustainable crop […]

Single seeds exhibit transcriptional heterogeneity during secondary dormancy induction (Plant Physiol)

Secondary dormancy (SD) of seeds is a natural strategy that allows survival of the plant in environments with unfavourable climatic conditions. However, in Arabidopsis, a variance of dormancy depth in between identical seeds can be explained by population-based threshold models. This single-seed variability relies on the differences in oxygen consumption, hormone levels and sensitivity, and […]