通过性杂草 (Cressa cretica L.) 的微观结构和功能变化进行植物修复,在超干旱的性沙漠中
Nargis Naz1, Ansa Asghar2, Sana Basharat2
1Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.
International journal of phytoremediation
|November 20, 2023
概括
耐盐植物,称为植物,对于盐水土壤的植物修复至关重要. 适应过度盐水条件的Cressa cretica生态型表现出对离子吸收,分泌和节水的增强特征,使其在盐受影响的土地回收方面有效.
科学领域:
- 环境科学 环境科学
- 植物生物学 植物生物学
- 生态生态学 生态生态学
背景情况:
- 盐分泌的类植物对于盐受影响的土壤的植物修复至关重要.
- 克雷萨·克雷蒂卡 (Cressa cretica) 是一种在高盐度的霍利斯坦沙漠中广泛分布的植物.
- 了解C. cretica的生理解剖学适应是其植物修复潜力的关键.
研究的目的:
- 确定不同适应的Cressa cretica种群中与植物修复相关的关键生理解剖特征.
- 为了比较四种C. cretica生态型在霍利斯坦沙漠不同盐度的适应性.
主要方法:
- 从具有电导率 (ECe) 从20.8到52.4dS m-1.1的地点收集了四种C. cretica生态型.
- 结构和功能特征的实验室分析,包括离子含量 (Na+,Cl-,K+,Ca2+),根和茎的修饰,以及叶子解剖学.
- 评估生长,离子吸收和分泌,和植物修复的特征.
主要成果:
- 在高盐度下,根和芽中的Na+,Cl-,K+和Ca2+含量增加.
- 显著的根基修改 (化,扩大的血管捆) 和茎/叶子适应 (更厚/更小的叶子,盐腺,更少的胃) 以节水.
- 来自高盐环境的生态型显示出优越的生长,离子管理和植物修复能力,具有最高的离子积累和排泄.
结论:
- 来自高盐环境的Cressa cretica生态型具有显著的生理解剖适应性,以在盐引起的生理干旱下生存.
- 这些适应,包括增强的节水机制和高效的离子管理,强调了该物种在盐受影响的土壤中的植物修复潜力.
相关概念视频
Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K
Adaptations that Reduce Water Loss
25.6K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.6K
Epiphytes, Parasites, and Carnivores
13.0K
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
13.0K
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Bioremediation
18.6K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.6K
C4 Pathway and CAM
45.6K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
45.6K


