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Ecophysiological characterization of Coccoloba uvifera L.: the case of a salt and drought stress tolerant plant species for sand dune reclamation in Cuba Prof.Dr. Raúl Carlos López Sánchez Local promoter Overall Academic Objective (OAO): strengthen research and training on abiotic, especially salt and drought, stress of economically interesting species at Granma University (GU). Overall Developmental Objective (ODO): improve capacity building for research in salt and drought stress at GU. Specific Academic Objective (SAO): strengthen research and training on ecophysiological, nutritional and phyto-chemical characterization and fruit production under salt and drought stress of C. uvifera in saline coastal soils of Cuba. Specific Developmental Objective (SDO): develop the capacities for ecophysiologically trained researchers to reduce climate change vulnerability of the coastal areas of Cuba. Prof.Dr. Raúl Carlos López Sánchez Local promoter Intermediate Results (IR) IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. IR2. Nutritional and phytochemical compounds of C. uvifera are characterized and known. IR3. The visibility of the Abiotic Stress Group of the Biotechnology Study Centre, as an excellence center for ecophysiological salt and drought stress research in Cuba has increased Prof.Dr. Raúl Carlos López Sánchez Local promoter IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. 1.1. Preparation of experiments 1.1.2 Literature review about drought and salt stress in relation to the selected and similar species Prof.Dr. Raúl Carlos López Sánchez Local promoter IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. 1.1. Preparation of experiments North South Playa Guardalavaca, Holguin province Latitude: 21°07′30″N Longitude: 75°49′44″O East Playa Las Coloradas, Granma province Latitude: 19° 56' 00" N Longitude: 77° 41' 00" W 1.1.3 Definition of experimental design and practical requirements Playa Ancon, Sancti Spiritus province Latitude: 21° 44' 00" N Longitude: 80° 01' 00" W Middle Cayo Coco, Ciego de Avila province Latitude: 22º 32' 10.06" N Longitude: 78º 21' 19.44" W West Playa Varadero, Matanzas province Latitude: 23°10'28"N Longitude: 81°12'43"W Playa Rancho Luna, Cienfuegos province Latitude: 22°02′20″N Longitude: 80°25′38″W IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. 1.1. Preparation of experiments 1.1.3 Definition of experimental design and practical requirements Prof.Dr. Raúl Carlos López Sánchez Local promoter IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. 1.1. Preparation of experiments 1.1.5 Training of the personnel responsible for the manipulation of the equipment and the measurements IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. 1.2. Experiments in controlled conditions 1.2.1 Evaluation of the response to salt and drought stress of C. uvifera during germination Prof.Dr. Raúl Carlos López Sánchez Local promoter IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. Control 5 dS.m-1 1.2. Experiments in controlled conditions 1.2.1 Evaluation of the response to salt and drought stress of C. uvifera during germination 15 dS.m-1 Salt stress Prof.Dr. Raúl Carlos López Sánchez Local promoter 25 dS.m-1 100 % field capacity IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. 1.2. Experiments in controlled conditions 1.2.1 Evaluation of the response to salt and drought stress of C. uvifera during germination Drought stress 0% field capacity 50 % field capacity IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. 1.2. Experiments in controlled conditions 1.2.2 Evaluation of ecophysiological responses (gas exchange, photosynthesis, chlorophyll fluorescence, plant-water-relations, leaf area index) of C. uvifera to salt and drought stress at seedling and sapling stage. Salt stress Control 15 dS.m-1 IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. Control 15 dS.m-1 1.2. Experiments in controlled conditions 1.2.2 Evaluation of ecophysiological responses (gas exchange, photosynthesis, chlorophyll fluorescence, plant-water-relations, leaf area index) of C. uvifera to salt and drought stress at seedling and sapling stage. Salt stress Control 15 dS.m-1 IR1. The ecophysiological mechanisms for salt and drought stress tolerance of C. uvifera are known. 1.2. Experiments in controlled conditions 1.2.2 Evaluation of ecophysiological responses (gas exchange, photosynthesis, chlorophyll fluorescence, plant-water-relations, leaf area index) of C. uvifera to salt and drought stress at seedling and sapling stage. Salt stress North 1.3. Experiments in field conditions. 1.3.2 Fruit collection of C. uvifera accessions in selected ecosystems. South Playa Guardalavaca, Holguin province Latitude: 21°07′30″N Longitude: 75°49′44″O East Playa Las Coloradas, Granma province Latitude: 19° 56' 00" N Longitude: 77° 41' 00" W IR2. Nutritional and phytochemical compounds of C. uvifera are characterized and known. 2.1 Intensive literature review on C. uvifera about the nutritional and medicinal compounds IR2. Nutritional and phytochemical compounds of C. uvifera are characterized and known. 2.2 Evaluation of nutritional quality of C. uvifera 2.3 Phytochemical screening and antibacterial activity evaluation of C. uvifera Metabolitos Alcaloides Coumarinas Ácidos grasos Resinas Triterpenos y/o esteroides Saponinas Aminoácidos libres Glicósidos cardiotónicos Carbohidratos reductores Fenoles y/o taninos Quinonas Antocianidinas Flavonoides Principios amargos Mucílagos Cabo Cruz Pilón Manzanillo Hojas Corteza del tallo Fruto Hojas Corteza del tallo Fruto Hojas Corteza del tallo Fruto Dcm Et Ac Dcm Et Ac Dcm Et Ac Dcm Et Ac Dcm Et Ac Dcm Et Ac Dcm Et Ac Dcm Et Ac Dcm Et Ac - + - +++ - +++ - - +++ - +++ - +++ - - +++ - +++ - +++ ++ ++ ++ ++ ++ ++ + ++ ++ ++ ++ ++ + ++ ++ ++ ++ ++ + + + ++ + + - - + + - + ++ + + - + + + - Metabolites DCM Alkaloids Coumarins Fatty Acid Resins Triterpenes/Steroids Saponines* (ultrasonido) Saponines* (maceración) Free amino acid Cardiotonic Glycosides Reducers Carbohydrates Phenols/Tanines Quinones Antocianidines Flavonoids Better compounds Mucilages + + - + ++ + + - + + ++ + - + + + + - Leaves EtOH EtOAc + ++ -* +* ++ +++ + + - + + +++ + - + + + - + + - - + ++ + + + + +++ + - + + + + - North of east region Bark of the shaft DCM EtOH EtOAc ++ + - ++ ++ + +++ + + - + + ++ - + ++ + + + + + + + + + + + + - + + + + - + ++ + + + + + ++ + - DCM Fruits EtOH EtOAc + + + - ++ ++ -* +* + ++ +++ + + - + ++ ++ - Prof.Dr. Raúl Carlos López Sánchez Local promoter Prof.Dr. Raúl Carlos López Sánchez Local promoter Prof.Dr. Raúl Carlos López Sánchez Local promoter