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首页> 外文期刊>Pakistan journal of botany >Root structural modifications in three Schoenoplectus (Reichenb.) Palla species for salt tolerance
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Root structural modifications in three Schoenoplectus (Reichenb.) Palla species for salt tolerance

机译：三种Schoenoplectus（Reichenb。）Palla物种的根系结构修饰以提高耐盐性

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摘要

Three species of Schoenoplectus (Reichenb.) Palla collected from three different sites of Punjab, Pakistan wereevaluated for root morpho anatomical modifications. All the three species were subjected to salt stress. The salt treatments,control (0 mM salt), 100, 200 and 300 mM NaCl were maintained in non aerated solution culture. Schoenoplectus triquetershowed specific root anatomical adaptations for its better survival under harsh saline environments. Increased epidermisthickness, cortex thickness, cortical cell area, vascular bundle area, metaxylem area, phloem area and aerenchyma area inroots were critical for checking water loss and enhancing water storage capability. The dominant anatomical traits related toS. triqueter (the most tolerant among all species) were found to be increased aerenchyma area for better gas exchange andbulk salt movement. Increased cortex thickness (increasing water storage) and increased number and area of vascular tissue(increased water conduction) seemed to be crucial for its better survival under harsh saline environments.
机译：评价了从巴基斯坦旁遮普邦三个不同地点收集的三种Schoenoplectus（Reichenb。）Palla的根形态解剖学变化。这三个物种都遭受了盐胁迫。在无气溶液培养中维持盐处理，对照（0 mM盐），100、200和300 mM NaCl。 Schoenoplectus triqueter显示出特定的根部解剖适应性，使其在苛刻的盐碱环境下具有更好的生存能力。表皮厚度，皮层厚度，皮质细胞面积，血管束面积，后木质部面积，韧皮部面积和通气组织面积根部增加对于检查失水和增强储水能力至关重要。与S有关的主要解剖学特征。 Triqueter（所有物种中最能耐受的）被发现增加了通气组织面积，以实现更好的气体交换和散装盐分运动。增加皮层厚度（增加水的储存）和增加血管组织的数量和面积（增加水的传导）似乎对于在苛刻的盐水环境下更好地生存至关重要。

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