Publications by authors named "Lazara A S Silva"
Proper activity of the age-dependent miR156 is required for leaf heteroblasty and extrafloral nectary development in Passiflora spp.
Jessica Ribeiro Soares Kerly Jessenia Moncaleano Robledo Vinicius Carius de Souza Lana Laene Lima Dias Lazara Aline Simões Silva Claudinei da Silva Souza Elisandra Silva Sousa Lilian da Silva Fialho
New Phytol
December 2024
Article Synopsis
- The study investigates how the age-related microRNA miR156 influences the development of extrafloral nectaries (EFNs) in two species of passion flower.
- Results show that manipulation of miR156 affects both leaf maturation and EFN formation, with overexpression leading to smaller and fewer EFNs, while reduced activity results in larger EFNs in one species.
- This research highlights a connection between miR156 activity, nectar sugar profiles, and the ecological interactions between EFNs and ants, underscoring the role of the miR156/SPL module in regulating these traits based on leaf age.
Article Synopsis
- Regulation of stomatal aperture is crucial for plants during drought stress.
- Yang et al. discovered that microRNA-plantacyanin (PCY) controls stomata movement by responding to abscisic acid (ABA) and managing reactive oxygen species (ROS) in guard cells.
- This research opens up possibilities for using miRNAs in genetic engineering aimed at enhancing stress resistance in plants.
Advances in Tissue Culture and Transformation Studies in Non-model Species: Bixa orellana L. (Bixaceae).
Wagner Campos Otoni Kleiton Lima Godoy Machado Ludmila Nayara de Freitas Correia Elyabe Monteiro Matos Elisandra Silva Sousa Lázara Aline Simões Silva Diego Silva Batista
Methods Mol Biol
July 2024
Article Synopsis
- The research team has focused on the natural dye-producing plant, annatto, gaining insights into its gene expression and regeneration processes.
- They have also explored gene editing techniques to improve bixin biosynthesis and breeding practices for this important species.
- The text outlines a detailed protocol for somatic embryogenesis and an optimized method for transforming annatto using Agrobacterium tumefaciens.
Advances in Tissue Culture and Transformation Studies in Non-model Species: Passiflora spp. (Passifloraceae).
Wagner Campos Otoni Jéssica Ribeiro Soares Claudinei Silva Souza Lázara Aline Simões Silva Lana Laene Lima Dias Priscila Oliveira Silva Diego Silva Batista Maurecilne Lemes Carvalho Silva
Methods Mol Biol
July 2024
In this chapter, we report advances in tissue culture applied to Passiflora. We present reproducible protocols for somatic embryogenesis, endosperm-derived triploid production, and genetic transformation for such species knowledge generated by our research team and collaborators in the last 20 years. Our research group has pioneered the work on passion fruit somatic embryogenesis, and we directed efforts to characterize several aspects of this morphogenic pathway.
View Article and Find Full Text PDFArticle Synopsis
- Age affects how plants produce secondary metabolites, which are important for industries, particularly focusing on bixin from the achiote tree.
- In a study, researchers overexpressed a specific microRNA (miR156) in annatto plants, leading to reduced gene expression for bixin production and changes in leaf development.
- The results highlight the role of the miR156-SPL module in controlling bixin biosynthesis and suggest potential strategies for improving bixin yield in breeding efforts.