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Publications
Publications (13)
Background:
Small RNAs regulate a wide variety of processes in plants, from organ development to both biotic and abiotic stress response. Being master regulators in genetic networks, their biogenesis and action is a fundamental aspect to characterize in order to understand plant growth and development. Three main gene families are critical compone...
UV-B is a high-energy component of the solar radiation perceived by the plant and induces a number of modifications in plant growth and development, including changes in flowering time. However, the molecular mechanisms underlying these changes are largely unknown. In the present work, we demonstrate that Arabidopsis plants grown under white light...
Maize leafbladeless1 (lbl1) encodes a key component in the trans-acting short-interfering RNA (ta-siRNA) biogenesis pathway. Correlated with a great diversity in ta-siRNAs and the targets they regulate, the phenotypes conditioned by mutants perturbing this small RNA pathway vary extensively across species. Mutations in lbl1 result in severe develop...
Fruit softening is associated with cell wall disassembly mediated by the action of a complex set of enzymes and proteins. Expansins, a group of proteins with unknown enzymatic activity, are proposed to be involved in this process. In order to study the involvement of expansins in strawberry fruit softening we have analyzed the expression level of f...
Key message
miR394 regulates Arabidopsis flowering time in a LCR-independent manner. Arabidopsis plants harboring mutations in theMIR394 genes exhibit early flowering, lower expression of floral repressor FLC and higher expression of floral integrators FT and SOC1.
Abstract
Plant development occurs throughout its entire life cycle and involves a p...
Plants are extremely plastic organisms with the ability to adapt and respond to the changing environmental conditions surrounding them. Sunlight is one of the main resources for plants, both as a primary energy source for photosynthesis and as a stimulus that regulates different aspects of their growth and development. UV-B comprises wavelengths th...
Heat treatments have been applied in fruit postharvest technology for insect disinfestations, decay control, ripening delay and modification of fruit responses to other stresses. Heat treatment affects several aspects of fruit ripening, such as ethylene production and cell wall degradation probably through changes in gene expression and protein syn...
The Chilean strawberry fruit (Fragaria chiloensis) has potential as a new exotic berry. The rate of softening differs between F. chiloensis and its related species Fragaria×ananassa. The expression profiles of five expansin genes isolated from F.×ananassa were analyzed during softening of F. chiloensis fruit and the regulatory effect of auxins on t...
Exposure to UV-C delays fruit softening, one of the main factors determining fruit postharvest life. This softening delay might be caused by changes in the activities of enzymes and proteins involved in cell wall disassembly. Expansins, polygalacturonases (PGs), endoglucanases (EGs) and pectin-methylesterases (PMEs) are cell wall proteins or enzyme...
abstract Exposure to UV-C delays fruit softening, one of the main factors determining fruit postharvest life. This
A number of key regulatory genes involved in meristem indeterminacy and organ initiation are under the control of small RNAs. To gain insight into the spatial and temporal regulation of such small RNA-controlled gene networks, we are characterizing the precise expression patterns of mature miRNAs by in situ hybridization. In addition, we used laser...
