A5083705654- Wastewater Treatment and Reuse
- Constructed Wetlands for Wastewater Treatment
- Soil and Water Nutrient Dynamics
- Wastewater Treatment and Nitrogen Removal
- Water resources management and optimization
- Soil Carbon and Nitrogen Dynamics
- Water-Energy-Food Nexus Studies
- Microbial Community Ecology and Physiology
- Soil erosion and sediment transport
- Irrigation Practices and Water Management
- Plant Water Relations and Carbon Dynamics
- Child Nutrition and Water Access
- Water management and technologies
- Growth and nutrition in plants
- Plant Physiology and Cultivation Studies
- Soil and Unsaturated Flow
- Microbial Fuel Cells and Bioremediation
- Plant nutrient uptake and metabolism
- Banana Cultivation and Research
- Gut microbiota and health
- Heavy metals in environment
- Urban Stormwater Management Solutions
- Plant Stress Responses and Tolerance
- Genomics and Phylogenetic Studies
- Cassava research and cyanide
Technical University of Crete
2015-2024
Sultan Qaboos University
2014
National Agricultural Research Foundation
2001-2007
University of Crete
2006-2007
Abstract Glutamate dehydrogenase (GDH) may be a stress-responsive enzyme, as GDH exhibits considerable thermal stability, and de novo synthesis of the α-GDH subunit is induced by exogenous ammonium senescence. NaCl treatment induces reactive oxygen species (ROS), intracellular ammonia, expression tobacco (Nicotiana tabacum cv Xanthi) gdh-NAD;A1 encoding α-subunit GDH, increase in immunoreactive α-polypeptide, assembly anionic isoenzymes, vitro aminating activity tissues from hypergeous plant...
This paper provides an overview of the Special Issue on water supply and scarcity. The papers selected for publication include review history, management issues under scarcity regimes, rainwater harvesting, quality degradation, climatic variability impacts resources. Overall, issue underscores need a revised management, especially in areas with demographic change climate vulnerability towards sustainable secure supply. Moreover, general guidelines possible solutions, such as adoption...
Water quality criteria are an indispensable part of water reuse projects aiming to ensure the protection public health and environment. In addition, can affect development, acceptance, economic viability projects. Currently no uniform exist, but they diverge, often greatly, between countries states. The authors briefly present evolution worldwide discuss emerging issues related ecological risks that have not addressed adequately in existing criteria. They specifically focus on European Union...
Crete, located in the South Mediterranean Sea, is characterized by long coastal areas, varied terrain relief and geology, great spatial inter-annual variations precipitation. Under average meteorological conditions, island water-sufficient (967 mm precipitation; theoretical water potential 3425.89 hm3; total use 610 hm3). Agriculture far greatest user of (78% use), followed domestic (21%). Despite high availability, scarcity events commonly occur, particularly eastern-south part island,...
This work investigates the impact of municipal solid waste compost (MSW-compost) application (0, 50, and 100 t/ha) on growth, nutrient trace elements content in lettuce tomato plants grown large, 40-L pots. Our findings showed inhibition plants' growth with increasing dose MSW-compost, compared to receiving conventional fertilization. Growth was associated a sharp decrease soil NO3–N content. On other hand, slower occurred non-planted pots amended MSW-compost. These provide evidence that N...
To date only few studies have dealt with the biogeography of microbial communities at large spatial scales, despite importance such information to understand and simulate ecosystem functioning. Herein, we describe biogeographic patterns microorganisms involved in nitrogen (N)-cycling (diazotrophs, ammonia oxidizers, denitrifiers) as well environmental factors shaping these across Koiliaris Critical Zone Observatory, a typical Mediterranean watershed. Our findings revealed that proportion...
Since prehistoric times, water conflicts have occurred as a result of wide range tensions and/or violence, which rarely taken the form traditional warfare waged over resources alone. Instead, has historically been (re)source tension and factor in that start for other reasons. In some cases, was used directly weapon through its ability to cause damage deprivation or erosion enemy populations their armies. However, conflicts, both past present, arise several reasons; including territorial...
Crete is considered as a semi-arid region. The average annual precipitation estimated to be 900 mm, the potential renewable water resources 2650 and real used about 485 million m3/yr. major use in irrigation for agriculture (84.5% of total consumption) while domestic 12% other uses 3.5%. shows significant regional variations availability, especially coastal, eastern southern regions due tourism agriculture. It has relatively high per capita which slightly lower than that country. demand...
Following the discovery of glutamine synthetase/glutamate (Glu) synthase, physiological roles Glu dehydrogenase (GDH) in nitrogen metabolism plants remain obscure and is subject considerable controversy. Recently, transgenics were used to overexpress gene encoding for beta-subunit polypeptide GDH, resulting GDH-isoenzyme 1 deaminating vivo Glu. In this work, we present transgenic tobacco (Nicotiana tabacum) overexpressing plant gdh alpha-subunit GDH. The levels transcript correlated well...
Ecological Enzyme Stoichiometry Reveals Seasonal and Treatment-Induced Constraints on C, N, P Dynamics in Olive Orchard SoilsOlive orchards semi-arid Mediterranean regions face critical challenges including soil degradation, drought, erosion, threatening their long-term sustainability. monitoring can provide insights into health dynamics assess the effect of nature-based solutions (NBSs) seasonal functioning. Extracellular enzymes are primary drivers organic matter breakdown assessing...
The objective of this study was to investigate the application constructed wetlands as a mean manage olive mill wastewater (OMW). Two free water surface (FWS) wetlands, one without (CW1) and with effluent recirculation (CW2), were operated for two-year period diluted OMW (1:10) evaluated in terms removal COD, TSS, TKN, NH4+-N, NO3−-N, TP total phenols. organic loading rate CWs adjusted 925 kg BOD/ha·d. In CW1 efficiency averaged 80%, 83%, 78%, 74% TP, phenols, respectively, during operation...
Data on soil microbial community distribution at large scales are limited despite the important information that could be drawn with regard to their function and influence of environmental factors nutrient cycling ecosystem services. This study investigates Archaea, Bacteria Fungi as well dominant bacterial phyla (Acidobacteria, Actinobacteria, Bacteroidetes, Firmicutes), classes Proteobacteria (Alpha- Betaproteobacteria) across Koiliaris watershed by qPCR associate them variables....
This study elucidated the impact of sewage-sludge (SS) and olive-mill-waste (OMW) biochar amendments to soil using tomatoes as a test crop. Four treatments were evaluated: “control” with no amendment, two SS addition 10 t/ha 25 t/ha, respectively, an OMW treatment t/ha. Higher yields observed in both treatments, providing evidence that acts plant bio-stimulant. Biochar application had positive impacts on carbon sequestration structure. The uptake heavy metals by all parts was very low,...