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Leaf physico-chemical and physiological properties of maize (Zea mays L.) populations from different origins
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname, BASE-Bielefeld Academic Search Engine
- Publication Year :
- 2016
-
Abstract
- 7 Pags.- 5 Tabls.- 1 Fig.<br />In this study we evaluated the leaf surface properties of maize populations native to different water availability environments. Leaf surface topography, wettability and gas exchange performance of five maize populations from the Sahara desert, dry (south) and humid (north-western) areas of Spain were analysed. Differences in wettability, stomatal and trichome densities, surface free energy and solubility parameter values were recorded between populations and leaf sides. Leaves from the humid Spanish population with special regard to the abaxial side, were less wettable and less susceptible to polar interactions. The higher wettability and hydrophilicity of Sahara populations with emphasis on the abaxial leaf surfaces, may favour dew deposition and foliar water absorption, hence improving water use efficiency under extremely dry conditions. Compared to the other Saharan populations, the dwarf one had a higher photosynthesis rate suggesting that dwarfism may be a strategy for improving plant tolerance to arid conditions. The results obtained for different maize populations suggest that leaf surfaces may vary in response to drought, but further studies will be required to examine the potential relationship between leaf surface properties and plant stress tolerance.<br />This project was financed by the Spanish National Plan for Research and Development (project code AGL2013-48852-C3-1-R).
- Subjects :
- 0106 biological sciences
Chlorophyll
Drought stress
Absorption of water
Chemical Phenomena
Physiology
Plant Science
Biology
Photosynthesis
01 natural sciences
Zea mays
Fluorescence
chemistry.chemical_compound
Quantitative Trait, Heritable
Genetics
Water-use efficiency
Plant surfaces
Gas exchange rates
Surface free energy
04 agricultural and veterinary sciences
Trichomes
Contact angles
Arid
Trichome
Plant Leaves
Deposition (aerosol physics)
chemistry
Agronomy
Plant Stomata
040103 agronomy & agriculture
Wettability
0401 agriculture, forestry, and fisheries
Thermodynamics
Dew
010606 plant biology & botany
Subjects
Details
- ISSN :
- 18732690
- Volume :
- 107
- Database :
- OpenAIRE
- Journal :
- Plant physiology and biochemistry : PPB
- Accession number :
- edsair.doi.dedup.....de455437fb306d7fd01dc4bc1ad84eed