A5075367870- Light effects on plants
- Postharvest Quality and Shelf Life Management
- Plant Gene Expression Analysis
- Plant Stress Responses and Tolerance
- Genomics, phytochemicals, and oxidative stress
- Plant tissue culture and regeneration
- Seed and Plant Biochemistry
- Mitochondrial Function and Pathology
- ATP Synthase and ATPases Research
- Phytochemicals and Antioxidant Activities
- Photosynthetic Processes and Mechanisms
- Natural Products and Biological Research
- Weed Control and Herbicide Applications
- Pesticide and Herbicide Environmental Studies
- Free Radicals and Antioxidants
- Nanocomposite Films for Food Packaging
- Biochemical and biochemical processes
- Insect-Plant Interactions and Control
- Plant and soil sciences
- Growth and nutrition in plants
- Moringa oleifera research and applications
- Antioxidants, Aging, Portulaca oleracea
- GABA and Rice Research
- Insect Pest Control Strategies
- Potato Plant Research
Instituto de Fisiología Vegetal
2014-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2014-2024
Universidad Nacional de La Plata
2021-2024
Centro Científico Tecnológico - San Juan
2021
National University of General San Martín
2011
Instituto Tecnológico de Chascomús
2011
Broccoli (Brassica oleracea L.) is a rapidly perishable vegetable crop. Several postharvest treatments have been applied in order to delay de-greening. Since light has shown an effect on pigment accumulation during development and darkness known induce senescence, the of continuous periodic exposure low-intensity white at 22 °C senescence broccoli heads was assayed.Exposure constant dose 12 micromol m(-2) s(-1) selected as most suitable treatment employed for subsequent experiments. During...
Broccoli contains a high content of nutraceutical compounds, such as glucosinolates and flavonoids. In this work, the effect different treatments that modulate postharvest senescence broccoli was evaluated flavonoid metabolism during storage analyzed at 20°C. A decrease in hue angle (HUE°) chlorophylls an increase were detected senescence. It observed most delayed also decreased content, except visible light UV-C treatments. all cases, direct correlation between those increased biosynthesis...
Abstract BACKGROUND: Broccoli is a highly perishable vegetable that shows enhanced postharvest senescence and intense de‐greening caused by chlorophyll degradation. One of the key steps catabolism opening tretrapyrrole catalysed pheophorbide oxygenase (PaO). In this study expression gene encoding putative PaO was characterised under several chemical physical treatments. RESULTS: A fragment from broccoli ( BoPaO ) cloned. The showed an important increment during senescence, in correlation...
In Argentina, glyphosate resistance was reported in a Lolium perenne population after 12 years of successful herbicide use. The aim the current paper to put evidence for mechanism this weed. Susceptible leaves treated with different doses and incubated vitro showed an accumulation shikimic acid around three five times basal level, while no changes were detected glyphosate-resistant plants. prevents shikimate leaves, even under such tissue-isolation conditions. activity target enzyme (EPSPS:...
Harvesting of broccoli at several moments the day affects rate senescence during storage. In this work, heads were harvested and then kept 20°C in order to analyze protein metabolism antioxidant compounds. Almost no differences detected contents total soluble proteins, free amino acids. Only an increment acids was by 3 samples obtained 8:00 hr. With reference antioxidants, ascorbic acid, carotenoids xanthophylls, phenols, flavonoids similar different moments. However, carotenoids, storage...
Bromus catharticus Vahl. has been used as a valuable forage crop, but it also noted weed of winter crops and an invader in several countries. In Argentina, putative glyphosate-resistant population B. was identified consequence the lack effective control with glyphosate pre-sowing wheat. Plant survival shikimate accumulation analysis demonstrated lower glyphosate-sensitivity this comparison to susceptible population. The resistant 4-fold more than its counterpart. There no evidence...
The transcriptomic response of A9:u-ATP9 and apetala3:u-ATP9 lines carrying a mitochondrial dysfunction in flower tissues has been characterized. Both showed an alteration the transcription several genes involved carbon nitrogen metabolism, stress responses, factors DNA binding proteins. Interestingly, transcripts photosynthetic-related were also affected their expression such as mRNAs encoding for chlorophyllase, chlorophyll proteins PSII. Moreover, levels reduced Mg-dechelatase activity...
Abstract BACKGROUND Chlorophyll is the most abundant pigment on Earth, essential for capture of light energy during photosynthesis. During senescence, chlorophyll degradation highly regulated in order to diminish toxicity free molecule due its photoactivity. The first step pathway conversion b a by means two consecutive reactions catalyzed enzymes coded NYC1 ( NON‐YELLOW COLORING 1 ), NOL NYC1‐LIKE ) and HCAR . RESULTS In this work, we studied expression genes postharvest senescence...
Broccoli is a vegetable with growing consumer demand worldwide due to its important nutritional properties, including high amounts of glucosinolates. However, this has short postharvest life and quickly loses organoleptic quality. Modified atmosphere one the numerous methodologies used delay deterioration during storage broccoli heads. In study, effect modified on glucosinolate metabolism was evaluated. Five glucosinolates were identified by using UPLC system coupled mass spectrometer. We...