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Structural modifications in Bermuda grass [Cynodon dactylon (L.) Pers.] ecotypes for adaptation to environmental
Aasma Tufail1, Farooq Ahmad2, Mansoor Hameed2
1Department of Botany, Division of Science and Technology, University of Education, Lahore, Pakistan.
Frontiers in Plant Science
|February 9, 2023
Summary
Bermuda grass ecotypes exhibit distinct anatomical adaptations, such as increased stem and leaf thickness, to survive environmental stress. These modifications, including water storage and reduced water loss, are crucial for ecological success in saline habitats.
Area of Science:
- Plant anatomy and ecophysiology
- Environmental stress adaptation in plants
- Botanical research on Cynodon dactylon
Background:
- Different ecotypes display unique survival mechanisms under environmental stress.
- Ecological success is linked to habitat-specific modifications.
- Bermuda grass (Cynodon dactylon) ecotypes show varied adaptations.
Purpose of the Study:
- To evaluate structural and functional modifications in Bermuda grass ecotypes.
- To identify adaptations specific to coping with environmental stress conditions.
- To compare ecotypes from diverse saline and non-saline habitats.
Main Methods:
- Collection of differently adapted Bermuda grass ecotypes.
- Analysis of soil properties (salinity, pH, organic matter, minerals).
- Free-hand sectioning and light microscopy for anatomical studies.
Main Results:
- DF-SD ecotype shows adaptations for water storage and reduced water loss (stem area, leaf sheath, trichomes).
- G-SSA ecotype exhibits root sclerification for saline arid conditions.
- Hyper-saline wetland ecotypes (UL-HS, KL-HS) display increased vascular tissue and stem sclerification for solute and salt movement.
Conclusions:
- Anatomical modifications are key to water conservation and stress tolerance in Cynodon dactylon ecotypes.
- Specific structural changes in stems, leaves, and roots mediate survival in varied saline environments.
- Understanding these adaptations can inform strategies for plant resilience in challenging habitats.
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