doi:

DOI: 10.3724/SP.J.1142.2013.60576

Plant Science Journal (植物科学学报) 2013/31:6 PP.576-582

Effects of Microlepia strigosa under Drought Stress on Physiological Change Laws


Abstract:
Research on Microlepia strigosa under natural drought stress treatment exhibited changes in physical properties.Stress increased relative conductivity,POD activity,soluble sugar and proline content.Soluble protein and MDA content high-low-high;SOD activity,chlorophyll content,total respiratory rate,net photosynthetic rate Intercellular CO2 concentration and stomatal conductance is on the decline;The CAT activity and Transpiration rate is raise-lower.The membrane system did not exhibit serious damage.The osmotic regulation system had good resistance to dehydration.The protective enzyme system played a role against free radicals;respiration and photosynthesis decreased significantly,but mainly for autonomic regulation of the plant.Results demonstrated that M.strigosa adapted to stress,and showed a strong ability of recovery after drought and exhibited certain endurance ability.

Key words:Microlepia strigosa,Mature sporophyte,Drought stress,Physiological characte-ristics

ReleaseDate:2015-04-15 13:22:54



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