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Author: José Tomás Matus Publisher: Frontiers Media SA ISBN: 2889632113 Category : Languages : en Pages : 423
Book Description
Fruits play a substantial role in the human diet as a source of vitamins, minerals, dietary fiber and a wide range of molecules relevant to health promotion and disease prevention. The characterization of genes involved in the accumulation of these molecules during fruit development and ripening, and in the overall plant’s response to the environment, constitutes a fundamental step for improving yield- and quality-related traits, and for predicting this crop’s behavior in the field. This is certainly the case for grapevine (Vitis vinifera L.), one of the most largely cultivated fruit crops in the world. The cultivation of this species is facing challenging scenarios driven by climate change – including increases in atmospheric carbon dioxide (CO2), solar radiation, and earth surface temperature, and decreases of water and nutrient availability. All these events will potentially affect the grapevine phenology, physiology, and metabolism in many growing regions and ultimately affect the quality of their fruits and of the most important derived product, the wine. The sequencing of the grapevine genome has given rise to a new era, characterized by the generation of large-scale data that requires complex computational analyses. Numerous transcriptomic and metabolomic studies have been performed in the past fifteen years, providing insights into the gene circuits that control the accumulation of all sorts of metabolites in grapevines. From now on, the integration of two or more ‘omics’ will allow depicting gene-transcript-metabolite networks from a more holistic (i.e. systems) perspective. This eBook attempts to support this new direction, by gathering innovative studies that assess the impact of genotypes, the environment, and agronomical practices on fruits at the ‘ome’-scale. The works hereby collected are part of a Research Topic covering the use of ‘omics’-driven strategies to understand how environmental factors and agronomical practices – including microclimate modification (e.g. sunlight incidence or temperature), water availability and irrigation, and postharvest management – affect fruit development and composition. These studies report well-settled transcriptomic and metabolomic methods, in addition to newly-developed techniques addressing proteome profiles, genome methylation landscapes and ionomic signatures, some of which attempt to tackle the influence of terroir, i.e. the synergic effect of (micro)climate, soil composition, grape genotype, and vineyard practices. A few reviews and opinions are included that focus on the advantages of applying network theory in grapevine research. Studies on vegetative organs in their relation to fruit development and on fruit-derived cell cultures are also considered.
Author: José Tomás Matus Publisher: Frontiers Media SA ISBN: 2889632113 Category : Languages : en Pages : 423
Book Description
Fruits play a substantial role in the human diet as a source of vitamins, minerals, dietary fiber and a wide range of molecules relevant to health promotion and disease prevention. The characterization of genes involved in the accumulation of these molecules during fruit development and ripening, and in the overall plant’s response to the environment, constitutes a fundamental step for improving yield- and quality-related traits, and for predicting this crop’s behavior in the field. This is certainly the case for grapevine (Vitis vinifera L.), one of the most largely cultivated fruit crops in the world. The cultivation of this species is facing challenging scenarios driven by climate change – including increases in atmospheric carbon dioxide (CO2), solar radiation, and earth surface temperature, and decreases of water and nutrient availability. All these events will potentially affect the grapevine phenology, physiology, and metabolism in many growing regions and ultimately affect the quality of their fruits and of the most important derived product, the wine. The sequencing of the grapevine genome has given rise to a new era, characterized by the generation of large-scale data that requires complex computational analyses. Numerous transcriptomic and metabolomic studies have been performed in the past fifteen years, providing insights into the gene circuits that control the accumulation of all sorts of metabolites in grapevines. From now on, the integration of two or more ‘omics’ will allow depicting gene-transcript-metabolite networks from a more holistic (i.e. systems) perspective. This eBook attempts to support this new direction, by gathering innovative studies that assess the impact of genotypes, the environment, and agronomical practices on fruits at the ‘ome’-scale. The works hereby collected are part of a Research Topic covering the use of ‘omics’-driven strategies to understand how environmental factors and agronomical practices – including microclimate modification (e.g. sunlight incidence or temperature), water availability and irrigation, and postharvest management – affect fruit development and composition. These studies report well-settled transcriptomic and metabolomic methods, in addition to newly-developed techniques addressing proteome profiles, genome methylation landscapes and ionomic signatures, some of which attempt to tackle the influence of terroir, i.e. the synergic effect of (micro)climate, soil composition, grape genotype, and vineyard practices. A few reviews and opinions are included that focus on the advantages of applying network theory in grapevine research. Studies on vegetative organs in their relation to fruit development and on fruit-derived cell cultures are also considered.
Author: José Tomás Matus Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Author: Hernâni Gerós Publisher: John Wiley & Sons ISBN: 1118736044 Category : Technology & Engineering Languages : en Pages : 400
Book Description
Grapes (Vitis spp.) are economically the most important fruit species in the world. Over the last decades many scientific advances have led to understand more deeply key physiological, biochemical, and molecular aspects of grape berry maturation. However, our knowledge on how grapevines respond to environmental stimuli and deal with biotic and abiotic stresses is still fragmented. Thus, this area of research is wide open for new scientific and technological advancements. Particularly, in the context of climate change, viticulture will have to adapt to higher temperatures, light intensity and atmospheric CO2 concentration, while water availability is expected to decrease in many viticultural regions, which poses new challenges to scientists and producers. With Grapevine in a Changing Environment, readers will benefit from a comprehensive and updated coverage on the intricate grapevine defense mechanisms against biotic and abiotic stress and on the new generation techniques that may be ultimately used to implement appropriate strategies aimed at the production and selection of more adapted genotypes. The book also provides valuable references in this research area and original data from several laboratories worldwide. Written by 63 international experts on grapevine ecophysiology, biochemistry and molecular biology, the book is a reference for a wide audience with different backgrounds, from plant physiologists, biochemists and graduate and post-graduate students, to viticulturists and enologists.
Author: Hernâni Gerós Publisher: Bentham Science Publishers ISBN: 1608053601 Category : Science Languages : en Pages : 304
Book Description
"Grapes (Vitis spp.) are economically significant fruit species. Many scientific advances have been achieved in understanding physiological, biochemical, and molecular aspects of grape berry maturation. Some of these advances have led to the improvement of"
Author: Serge Delrot Publisher: Springer Science & Business Media ISBN: 9048192838 Category : Technology & Engineering Languages : en Pages : 449
Book Description
Grapevine is a crop of major economical interest, and wine represents a multicultural heritage which has been growing since several milleniums. Yet, modern viticulture must face several challenges. Global climate has increased berry sugar content (and alcohol in the wine) whereas phenolic and aromatic ripeness are not always achieved. Water supply is becoming shorter. New varieties better adapted to new climatic conditions might have to be planted, which may affect wine typicity. Phytochemical treatments are more controlled, and the consumer pays increasing attention to environmentally safe practices. New methods reducing pesticide use, but maintaining yield and typicity, must be designed. The present book illustrates the recent progress made in ecophysiology, molecular and cell biology, and pathology of grapevine, as well as in precision viticulture and berry composition. Combination of these new tools with field observations will undoubtly make it easier to face the challenges described above. These multidisciplinary contributions will be of interest to anyone involved in grapevine and wine activities.
Author: Andrew David Harner Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Environmental stimuli from different abiotic and biotic origins can influence grapevine physiology and fruit chemistry at different scales, with downstream effects on wine chemistry and quality. These stimuli can originate at the macroscale (region), mesoscale (vineyard), and microscale (plant), and can interact in their influence upon wine grape production. Wine grape growers are limited in their ability to control factors at the macro- and mesoscale, while the microscale is more easily managed to ensure quality grape production; for example, while grape growers cannot change regional weather conditions or trends, various management methods can be implemented to influence grapevine physiology and fruit chemistry for quality wine production. The goal of this dissertation is to address this theme and investigate how different abiotic and biotic stimuli may influence grapevine physiology and fruit chemistry at different scales. This dissertation includes four chapters that investigated how environmental stimuli of abiotic and biotic origin influence grapevine physiology and fruit chemistry. In the first chapter, data was collected on 23 weather- and plant-related variables at nine different Grüner Veltliner (Grüner V.; Vitis vinifera L.) vineyards within a large geographic region for three years to determine how these variables influenced the volatile and non-volatile phenolic composition of Grüner V. wines. The second chapter assessed pre-bloom early leaf removal (ELR) and how increasing carbon limitation related to increasing ELR severities affects Grüner V. production parameters, fruit maturity, and volatile composition. Grüner V. is new grapevine variety to wine producing regions of the eastern U.S., and little is known about optimal production practices for Grüner V. grape and wine production. The guiding objectives of these two studies were to address this knowledge gap by determining the main weather- and plant-related drivers of Grüner V. wine volatile and phenolic composition and identifying an optimal ELR severity for highly vegetative Grüner V. that balances improvements in fruit and juice quality with penalties on vine yield and viability. Chapters three and four evaluated the responses of grapevine resource allocation and physiology to repeated phloem-feeding by increasing population densities of SLF and if physiological responses vary at different scales (i.e., single-leaf vs. whole-plant) and in time. The third chapter targeted how single-leaf gas exchange and end-of-season allocation of carbon and nitrogen resources are affected by SLF. The fourth chapter assessed the responses of whole-vine hydraulic functioning and vascular dynamics, and if SLF phloem-feeding induces similar responses at the whole-vine scale as those measured at the single-leaf scale in the first SLF chapter. Since SLF is a novel invasive insect pest that already has dealt economically relevant damage to Pennsylvania grape and wine producers, the objectives of these chapters were to determine how SLF phloem-feeding affects fundamental aspects of grapevine functioning and if grapevine responses change due to adult SLF population densities. This knowledge can subsequently be used to assist with development of economic action thresholds for SLF management in vineyard systems. In the first chapter, a combination of weather- and plant-related variables explained a high degree of variation measured in the volatile composition of Grüner V. wines produced from different vineyards within a large region, while phenolic composition was explained to a lower degree. Despite the high degree of variation in volatile composition that was explained by weather- and plant-related variables, the overall vintage effect was a stronger influence on wine volatile composition than variation in these variables among vineyards, at least for the volatile compounds measured. The second chapter illustrated how ELR can be an effective tool for improving fruit quality and altering juice volatile composition in Grüner V., while highlighting how high ELR severities (i.e., 8-12 leaves shoot-1) can negatively impact vine yield across years. The third and fourth chapters show how medium-to-high SLF densities (8-15 SLF shoot-1) can reduce grapevine gas exchange and whole-vine hydraulic functioning, while altering resource allocation dynamics by reducing the concentrations of belowground carbon storage reserves and driving an accumulation of carbon in aboveground tissues instead. These chapters also identified tissue-specific effects of SLF phloem-feeding on xylem and phloem tissues, namely by identifying and visualizing SLF-inflicted feeding damage localized to the phloem tissues while detecting shifts in diurnal tissue radius dynamics that reflect reduced xylem water flow and likely altered phloem carbon dynamics. Overall, these four chapters highlight how environmental stimuli from abiotic and biotic origins can affect grapevine physiology and fruit chemistry.
Author: Publisher: ISBN: Category : Languages : en Pages : 96
Book Description
The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Author: Nafees A. Khan Publisher: I K International Pvt Ltd ISBN: 8189866958 Category : Science Languages : en Pages : 206
Book Description
Abiotic stresses such as temperature, radiation, salinity, heavy metals and drought are the main factors that limit crop productivity. The anthropogenic activities and changed agricultural system, intense use of chemical fertilizers and artificial irrigation have increased temperature, UV-B radiation, drought, salinity and heavy metals stresses and caused yield losses annually to a greater extent. To overcome the yield losses due to abiotic stresses, plants need to possess mechanisms of avoidance and tolerance to stress. For sustainable agriculture development, future crops should have abiotic stress resistant traits and the mechanism for stress tolerance. The tolerance mechanisms can also be improved by the development of new techniques employing plant physiology and plant molecular biology tools. In this present book the advances in the area of abiotic stress responses and stress management have been included. The information may be useful in elucidating limits and tolerance of a plant to abiotic stress. The present volume, comprising seventeen chapters by outstanding and eminent specialists across the world, covers the information on abiotic stresses such as salinity, heavy metals, drought and herbicides.