A5070297898- Light effects on plants
- Plant Molecular Biology Research
- Plant tissue culture and regeneration
- Plant and Biological Electrophysiology Studies
- Botanical Research and Applications
- Photosynthetic Processes and Mechanisms
- Plant Physiology and Cultivation Studies
- Plant Pathogens and Fungal Diseases
- Postharvest Quality and Shelf Life Management
- Chromosomal and Genetic Variations
- Seed Germination and Physiology
- Plant Gene Expression Analysis
- Plant Diversity and Evolution
- Growth and nutrition in plants
- Plant Genetic and Mutation Studies
- GABA and Rice Research
- Plant responses to water stress
- Rice Cultivation and Yield Improvement
- Polyamine Metabolism and Applications
- Plant Stress Responses and Tolerance
- Leaf Properties and Growth Measurement
- Tree Root and Stability Studies
- Food composition and properties
- Advances in Cucurbitaceae Research
- Plant Virus Research Studies
Universitat de Barcelona
1996-2023
TILLING (Targeting Induced Local Lesions IN Genomes) is a reverse genetic method that combines chemical mutagenesis with high-throughput genome-wide screening for point mutation detection in genes of interest. However, this discovery approach faces particular problem which how to obtain mutant population sufficiently high density. Furthermore, plant protocols require two successive generations (M1, M2) fixation occur before the analysis genotype can begin. Here, we describe new rice based on...
Carnation plantlets (Dianthus caryophyllus L.) cultured in vitro often develop morphological and physiological anomalies, a phenomenon called hyperhydricity, which impairs their survival ex vitro. When the agar concentration of growth medium was increased (from 0 to 12 g dm-3), thereby reducing water availability, hyperhydricity those adventitious shoots regenerated from carnation petals decreased. This accompanied by progressive fall content (94.9 91.4 %), fresh mass 57.2 1.8 mg), number...
The involvement of Ca2+ on phytochrome-controlled nyctinastic closure in Albizzia lophantha has been studied by testing the effect calcium ionophore 6S-[6α(2S*,3S*),8β(R*),9β,11α]-5- methyl-amino)-2-[[3,9,11-trimethyl-8-[-1-methyl-2-oxo-2-(1H-pyrrol-2-yl) ethyl]-1,7-dioxaspiro[5.5]-undec-2yl] methyl]-4-benzoxazolecarboxylic acid (A23187) and intracellular antagonist 8-(diethylamino)octyl 3,4,5-trimethoxybenzoate hydrochloride (TMB-8). An external supply or A23187 to leaflets emulates red...
The effects of photoperiod, light quality and end‐of‐day (EOD) phytochrome photoconversion on somatic embryogenesis (SE) Araujia sericifera petals have been studied. Petals from immature flowers were cultured under 8‐ 16‐h photoperiods using Gro‐lux fluorescent lamps. photon fluence rate was 90–100 μmol m −2 s −1 the red (R):far‐red (FR) ratio 98. R, FR, R followed by FR (R‐FR) (FR‐R) treatments applied for 3 weeks at end photoperiods. In a set experiments, dl ‐ α ‐difluoromethylarginine...
The structure of the secondary pulvinus Robinia pseudoacacia has been examined together with ultrastructural features motor cells both in open and closed pulvini, to identify changes associated leaflet movement. Pulvini have a central vascular core bordered by thick‐walled collenchyma cells, which turn are surrounded several layers cortical parenchyma cells. Cortical exhibit similar those reported homologous other pulvini. vacuolar compartment contains two kinds vacuoles: nontannin vacuoles,...
The role of extracellular calcium on nyctinastic closure Albizzia lophantha leaflets has been studied by testing the effect ethyleneglycol-bis-(β-aminoethylether)-N,N,N′,N′-tetraacetic acid (EGTA) and its reversibility calcium. EGTA (1 5 mM) causes an inhibition at a concentration 1 mM it decreases difference between red light (R) far-red (FR) irradiation leaflet closure. A simultaneous or subsequent supply CaCl2 (5 10 reverses as well causing additional promotion We suggest that external...
Journal Article Effects of lanthanum on rhythmic and nyctinastic leaflet movements in Albizzia lophantha Get access Luisa Moysset, Moysset 1 Unidad de Fisiologia Vegetal, Facultad Biologia, Universidad BarcelonaDiagonal 645, 08028 Barcelona, Spain To whom correspondence should be addressed. Fax: +34 3 411 2842 Search for other works by this author on: Oxford Academic PubMed Google Scholar Luis Angel Gómez, Gómez Esther Simón Experimental Botany, Volume 45, Issue 1, January 1994, Pages 85–93,...
Changes in shape and size of Robinia pulvinar cortical cells relation to leaflet movements have been investigated using an image processing system applied drawings transverse longitudinal sections. Both the cell sections underwent change during movement. The dorsal-left side region cortex has characterized as extensor which increases turgor opening. Morphometric changes occur throughout motor except three or four inner layers. K, Cl, S, Ca distribution walls protoplasts outer measured with...
The effects of photoperiod and end‐of‐day phytochrome control on somatic embryogenesis polyamine (PA) content in Araujia sericifera petals have been studied. Petals from immature flowers were cultured under 16‐ 8‐h photoperiods. Far red (FR), (R) FR followed by R light treatments applied at the end photoperiods for three weeks. number embryos, callus weight levels free bound PAs petal explants determined 40 days after beginning treatments. Long day (LD) promoted but did not any significant...
The structure of the secondary pulvinus Robinia pseudoacacia has been examined together with ultrastructural features motor cells both in open and closed pulvini, to identify changes associated leaflet movement. Pulvini have a central vascular core bordered by thick-walled collenchyma cells, which turn are surrounded several layers cortical parenchyma cells. Cortical exhibit similar those reported homologous other pulvini. vacuolar compartment contains two kinds vacuoles: nontannin vacuoles,...
Abstract— The effect of several calmodulin (CAM) antagonists, blue light and an intracellular calcium inhibitor, on the circadian rhythm Robinia pseudoacacia leaflet movement has been studied. CAM chlorpromazine (CPZ), trifluoperazine (TFP), calmidazolium N ‐(6‐aminohexyI)‐5‐chloro‐1‐naphthalenesulfonamide (W 7 ) shifted phase rhythmic while W 5 , inactive analogue had no effect. Two hour pulses (10–50 μ M gave rise to a phase‐response curve with maximum advances (up 9 h) at time (CT) 6...
We have studied photoperiodic control and the effect of phytochrome photoconversion at end-of-day (EOD) on polyamine (PA) accumulation in petal explants Araujia sericifera. Petals from immature flowers were cultured under long (LD) short (SD) days. Light was provided by Gro-lux fluorescent lamps (90-100 &mgr;mol m-2 s-1). Red (R), far red (FR), followed far-red (R-FR) (FR-R) light treatments applied daily end photoperiod. The free bound putrescine (Put), spermidine (Spd) spermine (Spm)...
The effect of sorbitol and mannitol their interaction with the fusiccocin has been investigated in phytochrome‐mediated nyctinastic closure Albizzia lophantha leaflets. Treatments were commenced 2 h into photoperiod. Pairs leaflets excised, floated on test solutions, transferred to darkness immediately after red or far irradiation. Leaflet angles measured for 3 h. Fusicoccin (1 100 μ M ) inhibited enhanced reopening presence P ft (far‐red‐absorbing form phytochrome). effects treated not...
Rice holds an important sociocultural meaning in Europe, and especially the gastronomy of its Mediterranean regions, as it is used for world-famous recipes such Risotto Italy Paella Spain. prepared with highly appreciated pearled (white-core) rice cultivars Bomba or Montsianell, while white-belly Carnaroli cultivar among others. Pearled grains have a limited enclosed translucent zone which physicochemically different from stress-induced chalky present any at low rate, whose opaque area...
Abstract— The effect of several calmodulin (CAM) antagonists, blue light and an intracellular calcium inhibitor, on the circadian rhythm Robinia pseudoacacia leaflet movement has been studied. CAM chlorpromazine (CPZ), trifluoperazine (TFP), calmidazolium N-(6-aminohexyI)-5-chloro-1-naphthalenesulfonamide (W7) shifted phase rhythmic while W5, inactive analogue W7, had no effect. Two hour pulses (10–50 μM) gave rise to a phase-response curve with maximum advances (up 9 h) at time (CT) 6...
Biologia plantarum, an international journal for experimental botany founded in 1959 by Professor Bohumil Němec. Covers all branches of ranging from molecular biology and biotechnology to whole-plant stand functioning.