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Research Advances in Mechanisms of Turfgrass Tolerance to Abiotic Stresses: From Physiology to Molecular Biology
This review focuses on research advances in turfgrass stress physiology and provides an overview of limited information on gene discovery, genetic transformation, and molecular marker development for improving stress tolerance, with emphasis on drought, salinity, heat, and low temperature stress.
Minimum water requirements for creeping, colonial, and velvet bentgrasses under fairway conditions
The results from this study demonstrate the potential for significant water and monetary savings by utilizing deficit irrigation practices on bentgrass species used for golf course fairways.
Changes in Antioxidant Enzyme Activities and Lipid Peroxidation for Bentgrass Species in Response to Drought Stress
Results suggest that bentgrass resistance to drought stress could be associated with higher oxidative scavenging ability, especially for velvet bentgrass, compared with colonial bentgrass and creeping bentgrass.
Physiological changes during cold acclimation of perennial ryegrass accessions differing in freeze tolerance.
Perennial ryegrass accessions varying in freezing tolerance exhibited higher ratio of membrane stabilizing lipids and unsaturated fatty acid content and water soluble carbohydrates significantly increased in response to 2°C, with TOL accessions accumulating higher WSC than SUS (SUS-1 and SUS-2) by 21 d of acclimation.
Examination of Cold Deacclimation Sensitivity of Annual Bluegrass and Creeping Bentgrass
Acclimated AB exhibited a 2.5 fold greater loss in freezing tolerance compared to CB during the early stages of deacclimation in response to thawing temperatures at 4 °C, and total shoot growth and LT 50 were correlated during deacClimation in these species.
Deficit irrigation effects on water use characteristics of bentgrass species
It is suggested that irrigating bentgrass species at 60 to 80% ET a could be practiced to increase WUE during summer and 40%ET a during fall months under the conditions of this study.
Freezing Tolerance and Carbohydrate Changes of Two Agrostis Species during Cold Acclimation
Freezing tolerance (lethal temperature for 50% of the test population [LT 50 ]) was based on whole plant survival (WPS), 2,3,5-tri-phenyltetrazolium chloride (TTC) reduction, and electrolyte leakage (EL).
Effect of salinity stress on the physiological characteristics, phenolic compounds and antioxidant activity of Thymus vulgaris L. and Thymus daenensis Celak
Projected Carbon Dioxide to Increase Grass Pollen and Allergen Exposure Despite Higher Ozone Levels
- Jennifer M. Albertine, W. Manning, M. Dacosta, K. Stinson, M. Muilenberg, C. Rogers
- Environmental SciencePloS one
- 5 November 2014
The net effect of rising pollen numbers with elevated CO2 indicate increased allergen exposure under elevated levels of both greenhouse gases, providing evidence for significant impacts on human health worldwide as a result of future climate change.
Osmotic Adjustment Associated with Variation in Bentgrass Tolerance to Drought Stress
Both creeping bentgrass and velvet bentgrass exhibited OA in response to drought stress; however, velvetbentgrass exhibited 50% to 60% higher magnitude of OA, which could be related to the maintenance of higher leaf RWC and TQ for greater drought duration compared to creeps bentgrass.