Publications by authors named "Matias L Alegre"
Increased synthesis of HO is observed during the initiation of fruit ripening. However, its association with plant cell processes triggering the maturation of fruit has not yet been demonstrated. The aim of this work is to investigate whether HO participates in the tomato ripening process and particularly through its association with the ethylene signaling pathway.
View Article and Find Full Text PDFThe oxidant/antioxidant balance affects the ripening time of tomato fruit. Ripening of tomato fruit is associated with several modifications such as loss of cell wall firmness and transformation of chloroplasts to chromoplasts. Besides a peak in HO, reactive oxygen species (ROS) are observed at the transition stage.
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- Reduced expression of GDP-L-galactose phosphorylase (GGP) and low ascorbic acid levels negatively affect fruit set and yield in tomato plants.
- SlGGP1 deficient mutants show decreased ascorbate concentrations and delayed flowering, leading to fewer fruits but larger individual fruit weight.
- The lower gibberellin levels in the mutants contribute to decreased fruit set, highlighting the importance of ascorbate in tomato development and production.