| Records |
| Author |
Maggio, A.; De Pascale, S.; Orsini, F.; Barbieri, G. |
| Title |
Addressing cultivation practices and nutritional quality of tomato crops to improve the sustainability of organic farming systems |
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MA @ admin @ |
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2620 |
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| Author |
Maggio, A. |
| Title |
Crop responses to soil salinization in the context of climate change |
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Conference Article |
| Year |
2014 |
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Soil salinization is an expanding phenomenon, exacerbated by climate change. Mediterranean environments are exposed to salinization. Assessment of the specific crop-environment interactions is therefore critical for these areas. In this context, models to evaluate crop response to salinity, including applications of SWAP and Hydrus models to study viable water management options and water movement in salinized agricultural zones can contribute to identify optimal mitigation strategies. |
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FACCE MACSUR Mid-term Scientific Conference |
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3(S) Sassari, Italy |
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FACCE MACSUR Mid-term Scientific Conference, 2014-04-01 to 2014-04-04, Sassari, Italy |
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MA @ admin @ |
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5068 |
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Bressan, R.A.; Park, H.C.; Orsini, F.; Oh, D.-ha; Dassanayake, M.; Inan, G.; Yun, D.-J.; Bohnert, H.J.; Maggio, A. |
| Title |
Biotechnology for mechanisms that counteract salt stress in extremophile species: a genome-based view |
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Journal Article |
| Year |
2013 |
Publication |
Plant Biotechnology Reports |
Abbreviated Journal |
Plant Biotechnol. Rep. |
| Volume |
7 |
Issue |
1 |
Pages |
27-37 |
| Keywords |
Thellungiella; Extremophile species; Genome sequences; Abiotic stress; protection; Biotechnology potential; arabidopsis-thaliana; thellungiella-halophila; salinity stress; whole-genome; gene-expression; water-content; model system; tolerance; halophytes |
| Abstract |
Molecular genetics has confirmed older research and generated new insights into the ways how plants deal with adverse conditions. This body of research is now being used to interpret stress behavior of plants in new ways, and to add results from most recent genomics-based studies. The new knowledge now includes genome sequences of species that show extreme abiotic stress tolerances, which enables new strategies for applications through either molecular breeding or transgenic engineering. We will highlight some physiological features of the extremophile lifestyle, outline emerging features about halophytism based on genomics, and discuss conclusions about underlying mechanisms. |
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1863-5466 1863-5474 |
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Review |
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CropM |
Approved |
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MA @ admin @ |
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4483 |
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De Pascale, S.; Orsini, F.; Caputo, R.; Palermo, M.A.; Barbieri, G.; Maggio, A. |
| Title |
Seasonal and multiannual effects of salinisation on tomato yield and fruit quality |
Type |
Journal Article |
| Year |
2012 |
Publication |
Functional Plant Biology |
Abbreviated Journal |
Functional Plant Biology |
| Volume |
39 |
Issue |
8 |
Pages |
689-698 |
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fruit ions concentration; fruit lipophilic and hydrophilic antioxidant; capacities; leaf water potentials; leaf stomatal conductance; short- and; long-term salinisation; salinity tolerance; water-stress; antioxidant activity; irrigation; growth; plants; soils; carotenoids; responses; crops |
| Abstract |
The effects of short-and long-term salinisation were studied by comparing tomato growth on a soil exposed to one-season salinisation (short term) vs growth on a soil exposed to >20 years salinisation (long term). Remarkable differences were associated to substantial modifications of the soil physical-chemical characteristics in the root zone, including deteriorated structure, reduced infiltration properties and increased pH. Fresh yield, fruit number and fruit weight were similarly affected by short-and long-term salinisation. In contrast, the marketable yield was significantly lower in the long-term salinised soil-a response that was also associated to nutritional imbalance (mainly referred to P and K). As reported for plants growing under oxygen deprivation stress, the antioxidant capacity of the water soluble fraction of salinised tomato fruits was enhanced by short-term salinisation, also. Overall, long-term salinisation may cause physiological imbalances and yield reductions that cannot be solely attributed to hyperosmotic stress and ionic toxicity. Therefore, the ability of plants to cope with nutritional deficiency and withstand high pH and anoxia may be important traits that should be considered to improve plant tolerance to long-term salinised soils. |
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English |
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1445-4408 |
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CropM |
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no |
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MA @ admin @ |
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4583 |
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| Author |
Orsini, F.; Alnayef, M.; Bona, S.; Maggio, A.; Gianquinto, G. |
| Title |
Low stomatal density and reduced transpiration facilitate strawberry adaptation to salinity |
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Journal Article |
| Year |
2012 |
Publication |
Environmental and Experimental Botany |
Abbreviated Journal |
Environmental and Experimental Botany |
| Volume |
81 |
Issue |
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Pages |
1-10 |
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stomatal density; leaf gas exchanges; transpiration; salt tolerance; osmotic adjustment; salt-stress tolerance; water-use efficiency; nacl salinity; hydraulic conductivity; irrigation water; dynamic indexes; leaf expansion; abscisic-acid; growth; plants |
| Abstract |
Water and soil salinization are major constraints to agricultural productions because plant adaptation to hyperosmotic environments is generally associated to reduced growth and ultimately yield loss. Understanding the physiological/molecular mechanisms that link adaptation and growth is one of the greatest challenges in plant stress research since it would allow us to better define strategies to improve crop salt tolerance. In this study we attempted to establish a functional link between morphological and physiological traits in strawberry in order to identify margins to “uncouple” plant growth and stress adaptation. Two strawberry cultivars, Elsanta and Elsinore, were grown under 0, 10.20 and 40 mM NaCl. Upon salinization Elsanta plants maintained a larger and more functional leaf area compared to Elsinore plants, which were irreversibly damaged at 40 mM NaCl. The tolerance of Elsanta was correlated with a constitutive reduced transpirational flux due to low stomata! density (173 vs. 234 stomata mm(-2) in Elsanta and Elsinore, respectively), which turned out to be critical to pre-adapt plants to the oncoming stress. The reduced transpiration rate of Elsanta (14.7 g H2O plant(-1) h(-1)) respect to Elsinore (17.7 g H2O plant(-1) h(-1)) most likely delayed the accumulation of toxic ions into the leaves, preserved tissues dehydration and consented to adjust more effectively to the hyperosmotic environment. Although we cannot rule out the contribution of other physiological and molecular mechanisms to the relatively higher tolerance of Elsanta, here we demonstrate that low stomatal density may be beneficial for cultivars prescribed to be used in marginal environments in terms of salinity and/or drought. (C) 2012 Elsevier B.V. All rights reserved. |
| Address |
2016-10-31 |
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English |
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0098-8472 |
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| Notes |
CropM |
Approved |
no |
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MA @ admin @ |
Serial |
4797 |
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