A5080380184- Horticultural and Viticultural Research
- Plant Water Relations and Carbon Dynamics
- Plant Physiology and Cultivation Studies
- Fermentation and Sensory Analysis
- Plant Parasitism and Resistance
- Plant nutrient uptake and metabolism
- Irrigation Practices and Water Management
- Plant Stress Responses and Tolerance
- Plant responses to water stress
- Ion Transport and Channel Regulation
- Plant Molecular Biology Research
- Nuts composition and effects
- Greenhouse Technology and Climate Control
- Nematode management and characterization studies
- Plant and animal studies
- Agronomic Practices and Intercropping Systems
- Plant and Fungal Interactions Research
- Plant Surface Properties and Treatments
- Leaf Properties and Growth Measurement
- Plant Pathogens and Fungal Diseases
- Insect-Plant Interactions and Control
- Plant Virus Research Studies
- Photosynthetic Processes and Mechanisms
- Membrane-based Ion Separation Techniques
- Plant Reproductive Biology
University of Turin
2016-2025
National Research Council
2012-2022
Institute for Sustainable Plant Protection
2012-2022
National Academies of Sciences, Engineering, and Medicine
2012-2016
Physique et Physiologie Intégratives de l'Arbre en Environnement Fluctuant
2016
This review deals with grapevine responses to water stress by examining perturbations physiological and molecular processes at the root, shoot, leaf berry levels. Long-distance signalling among organs is also considered. Isohydric or anisohydric Vitis genotypes are described in relation their response drought, which linked stomatal behaviour. Stomatal regulation of under abscisic acid hydraulic control (the latter being embolism formation recovery pathways upstream stomata) reviewed...
Strigolactones (SL) contribute to drought acclimatization in shoots, because SL-depleted plants are hypersensitive due stomatal hyposensitivity abscisic acid (ABA). However, under drought, SL biosynthesis is repressed roots, suggesting organ specificity their metabolism and role. Because can be transported acropetally, such a drop may also affect as systemic indication of stress. We investigated this hypothesis by analysing molecularly physiologically wild-type (WT) tomato (Solanum...
The molecular functions of several aquaporins are well characterized (e.g., by analysis aquaporin-expressing Xenopus oocytes). However, their significance in the physiology water transport multicellular organisms remains uncertain. tobacco plasma membrane aquaporin NtAQP1 was used to elucidate this issue. By comparing antisense plants that were inhibited expression with control plants, we found evidence for function cellular and whole-plant relations. consequences a decrease permeability...
Modifications of vessel size and shoot hydraulic conductivity induced by different water availability levels (ψleaf −0.35 MPa, −0.6 MPa −0.8 respectively) were investigated in container-grown grapevine plants. Plant loss, measured as xylem sap flow leaf transpiration, was lower waterstressed Morphometric measurements on showed that vessels water-stressed plants had transectional areas. Shoot (kh), specific (ks) (kl) When conductivities portions, differences between treatments particularly...
• Proposed mechanisms of embolism recovery are controversial for plants that transpiring while undergoing cycles dehydration and rehydration. Here, water stress was imposed on grapevines (Vitis vinifera), the course recovery, leaf potential (Ψleaf), transpiration (E) abscisic acid (ABA) concentration followed during rehydration process. As expected, Ψleaf E decreased upon stress, whereas xylem ABA increased. Upon rehydration, recovered in 5 h, fully only after an additional 48 h. The content...
The hybrid Richter-110 (Vitis berlandieri x Vitis rupestris) (R-110) has the reputation of being a genotype strongly adapted to drought. A study was performed with plants R-110 subjected water withholding followed by re-watering. goal analyze how stomatal conductance (g(s)) is regulated respect different physiological variables under stress and recovery, as well affects adjustments use efficiency (WUE) at leaf level. Water induced substantial closure an increase in WUE, which persisted many...
Strigolactones (SLs) are newly identified hormones that regulate multiple aspects of plant development, infection by parasitic weeds, and mutualistic symbiosis in the roots. In this study, role SLs was studied for first time model Lotus japonicus using transgenic lines silenced CAROTENOID CLEAVAGE DIOXYGENASE 7 (LjCCD7), orthologue Arabidopsis More Axillary Growth 3. Transgenic LjCCD7-silenced plants displayed reduced height due to shorter internodes, more branched shoots roots than...
Abstract We functionally characterized the grape (Vitis vinifera) VvPIP2;4N (for Plasma membrane Intrinsic Protein) aquaporin gene. Expression of in Xenopus laevis oocytes increased their swelling rate 54-fold. Northern blot and quantitative reverse transcription-polymerase chain reaction analyses showed that is most expressed PIP2 gene root. In situ hybridization confirmed root localization cortical parenchyma close to endodermis. then constitutively overexpressed ‘Brachetto’, resulting...
miR156 is a conserved microRNA whose role and induction mechanisms under stress are poorly known. Strigolactones phytohormones needed in shoots for drought acclimation. They promote stomatal closure ABA-dependently independently; however, downstream effectors the former have not been identified. Linkage between strigolactones has reported. We compared ABA accumulation sensitivity as well performances of wt miR156-overexpressing (miR156-oe) tomato plants during drought. also quantified levels...
Grapevine (Vitis vinifera) is routinely grafted, and rootstocks inducing drought tolerance represent a source for adapting vineyards to climate change in temperate areas. Our goal was investigate stress effects on microRNA (miRNA) abundance drought-resistant grapevine rootstock, M4 vinifera × Vitis berlandieri), compared with commercial cultivar, Cabernet Sauvignon, using their autografts reciprocal grafts. RNA extracted from roots leaves of droughted irrigated plants different graft...
In order to investigate whether plant hydraulic conductance (gplant) is reduced under drought conditions via an ABA-related mechanism, a water-stress experiment was carried out using split-rooted grapevines. addition, inversion of shoot growth orientation imposed reduce gplant independently soil water availability, and thus the putative ABA root-generated stress message. As expected, on split-roots affected accumulation. drought-stress message negatively stomatal (gs) transpiration (E), but...
Abstract MicroRNAs (miRNAs) are small non-coding RNAs that regulate the post-transcriptional control of several pathway intermediates, thus playing pivotal roles in plant growth, development and response to biotic abiotic stresses. In recent years, grapevine genome release, small(s)-RNAseq degradome-RNAseq together has allowed discovery characterisation many miRNA species, rendering additional miRNAs difficult uncertain. Taking advantage responsiveness stresses availability virus-free Vitis...
Grapevine (Vitis vinifera L.) expresses different responses to water stress, depending not only on genotype, but also the influence of vineyard growing conditions or seasonality. Our aim was analyse effects drought response two grapevine cultivars soils, one draining (WD) containing sand 80% volume and other retaining (WR), with no sand. Under these water-holding capacities Syrah, displaying a near-anisohydric Cabernet Sauvignon (on contrary, near-isohydric) were submitted stress in pot...