A5073793875- Plant-Microbe Interactions and Immunity
- Plant Molecular Biology Research
- Soil Management and Crop Yield
- Soil Carbon and Nitrogen Dynamics
- Cocoa and Sweet Potato Agronomy
- Plant Stress Responses and Tolerance
- Agroforestry and silvopastoral systems
- Plant Parasitism and Resistance
- Plant and soil sciences
- Plant Reproductive Biology
- Conservation, Biodiversity, and Resource Management
- Cellular transport and secretion
- Sugarcane Cultivation and Processing
- Calcium signaling and nucleotide metabolism
- Legume Nitrogen Fixing Symbiosis
- Plant tissue culture and regeneration
- Soil erosion and sediment transport
- Retinal Development and Disorders
- Viral Infections and Vectors
- Traditional and Medicinal Uses of Annonaceae
- Sustainable Agricultural Systems Analysis
- Islanding Detection in Power Systems
- Coffee research and impacts
- Biochemical and Structural Characterization
- Social Capital and Networks
University of the Amazon
2016-2025
VIB-UGent Center for Plant Systems Biology
2016-2025
Ghent University
2016-2025
University of Michigan
2024-2025
Texas A&M University
2020-2024
Amazon (United States)
2023
Universidade de São Paulo
2010-2017
Centro de Investigación de la Caña de Azúcar de Colombia
2011
Planta
2011
The Arabidopsis thaliana endogenous elicitor peptides (AtPeps) are released into the apoplast after cellular damage caused by pathogens or wounding to induce innate immunity direct binding membrane-localized leucine-rich repeat receptor kinases, PEP RECEPTOR1 (PEPR1) and PEPR2. Although PEPR-mediated signaling components responses have been studied extensively, contributions of subcellular localization dynamics active PEPRs remain largely unknown. We used live-cell imaging fluorescently...
Abstract ATP production requires the establishment of an electrochemical proton gradient across inner mitochondrial membrane. Mitochondrial uncouplers dissipate this and disrupt numerous cellular processes, including vesicular trafficking, mainly through energy depletion. Here we show that Endosidin9 (ES9), a novel uncoupler, is potent inhibitor clathrin-mediated endocytosis (CME) in different systems ES9 induces inhibition CME not because its effect on ATP, but rather due to protonophore...
Abstract Background MicroRNAs (miRNAs) are small regulatory RNAs, some of which conserved in diverse plant genomes. Therefore, computational identification and further experimental validation miRNAs from non-model organisms is both feasible instrumental for addressing miRNA-based gene regulation evolution. Sugarcane ( Saccharum spp .) an important biofuel crop with publicly available expressed sequence tag genomic survey databases, but little known about their targets this highly polyploid...
The rapid alkalinization factor (RALF) peptide negatively regulates cell expansion, and an antagonistic relationship has been demonstrated between AtRALF1, a root-specific RALF isoform in Arabidopsis, brassinosteroids (BRs). An evaluation of the response BR signaling mutants to AtRALF1 revealed that BRI1-associated receptor kinase1 (bak1) are insensitive root growth inhibition activity. BAK1 was essential for induction AtRALF1-responsive genes but showed no effect on mobilization Ca2+...
Abstract Silvopastoral systems (SPS) have been widely implemented in the Colombian Amazon region to improve pastures involving a greater diversity of species, soil tillage, fertilization, and higher stocking rate, which can induce changes properties functions. This study aimed evaluate chemical carbon sequestration due transition from traditional silvopastoral systems. The was conducted region, specifically La Montañita El Doncello Counties, Caquetá, second most important hotspot...
Axillary bud outgrowth determines shoot architecture and is under the control of endogenous hormones a fine-tuned gene-expression network, which probably includes small RNAs (sRNAs). Although it well known that sRNAs act broadly in plant development, our understanding about their roles vegetative remains limited. Moreover, expression profiles microRNAs (miRNAs) targets within axillary buds are largely unknown. Here, we employed sRNA next-generation sequencing as computational analysis to...
Cell death is intrinsically linked with immunity. Disruption of an immune-activated MAPK cascade, consisting MEKK1, MKK1/2, and MPK4, triggers cell autoimmunity through the nucleotide-binding leucine-rich repeat (NLR) protein SUMM2 kinase MEKK2. In this study, we identify a Catharanthus roseus receptor-like 1-like (CrRLK1L), named LETUM2/MEDOS1 (LET2/MDS1), glycosylphosphatidylinositol (GPI)-anchored LLG1 as regulators mekk1-mkk1/2-mpk4 death. LET2/MDS1 functions additively LET1, another...
Soil enzymes mediate key processes and functions of the soils, such as organic matter decomposition nutrient cycling in both natural agricultural ecosystems. Here, we studied activity five extracellular soil involved C, N, P-mineralizing process litter surface layer rainforest northwest region Colombian Amazon response those to land use change. The experimental study design included six sites for comparing long-term pasture systems native forest regeneration practices after pasture, within...
After cellular damage caused by wounding or pathogens, Arabidopsis thaliana endogenous elicitor peptides (Peps) are released into the apoplast, enhancing innate immunity directly binding to membrane-localized leucine-rich repeat receptor kinase PEP RECEPTOR1 (PEPR1). Ligand induces PEPR1 heterodimerization with co-receptor BRASSINOSTEROID INSENSITIVE1-ASSOCIATED KINASE1 (BAK1), followed internalization, both essential for a subset of Pep1-induced responses. However, role BAK1 in...
Silvopastoral systems (SPS), an integrated farming system in which tropical grasses are combined with trees and shrubs, have been implemented the last years Amazon region order to mitigate impacts generated by traditional cattle ranching system. However, despite multiple SPS’s benefits soil ecosystem, there is a paucity of comprehensive studies revealing potential health (SH) restoration through SPS. Here, developing overall SH index using local native vegetation (Amazon rainforest) as...
Intensive land-use change, the overgrazing of pastures, and poor soil management in Amazon region induce significant chemical degradation, causing alterations phosphorus (P) dynamics. Here, we studied changes P fractions availability throughout profile along a chronosequence composed four study areas representing typical transition from forest to pasture for extensive cattle ranching Colombian region: (i) Forest—Deforested—Pasture 4 years old Pasture established >25 after deforestation....
Abstract One of the most important livelihoods for rural households in Colombia is cultivation sugarcane ( Saccharum spp.) to produce panela. We analyzed livelihood strategies associated with panela production and their impacts on households' wellbeing Caquetá, southern Colombia. selected 81 gather data calculate correlations between capitals identify community capital indicators. Our results identified three types producers: Avant-garde, Traditionalists, Diversifiers, each specific...
Abstract The visual evaluation of soil structure (VESS) is an affordable and easy‐to‐use method for assessing quality that could help in the early detection changes pasturelands less developed countries where ranchers cannot afford quantitative studies. Here, we assessed three pasture areas Colombian Amazon region using VESS tested its suitability through a correlation analysis with key physical biochemical indicators measured at same study locations. Moreover, by integrating all indicators,...
This paper studies the influence of community capitals on well-being through a Community Capital Index (CCI) within coffee-growing families in southern Colombia. Our results show different farm typologies, with levels capital endowment translated into that, our case, were represented CCI. Specifically, social and political positively affect families’ decisions terms life strategies. The this study increase understanding welfare enhancement its relationship according to type coffee producer,...
Coffee cultivation is one of the main agricultural activities in Colombia, which increases well-being coffee-growing families. In order to determine impact coffee production, capital endowment and families municipality Pitalito, south were analyzed using community index (CCI). Likewise, relationships between variables identified through a Pearson correlation analysis, increase was modeled by employing structural equations. The equation model showed suitable fit data, indicated...
The cultivation of cocoa (Theobroma cacao L.) is traditionally managed under shade because its photosynthetic characteristics; however, behavior can vary according to the genotype and environmental conditions where it grown. In this sense, here, we explore possible mechanisms protection against radiation stress how these are affected by variation between genotypes. Therefore, evaluate effect level (HPAR, 2100 ± 46 mol m−2 s−1; MPAR, 1150 42 LPAR, 636 40 s−1) on water status gas exchange in...