Physiological and Biochemical Mechanisms of Salinity Tolerance in Carex morrowii Boott

作     者：Aysegul Akpinar 

作者机构：Department of Park and HorticultureVocational School of Technical SciencesBursa Uludag UniversityBursa16059Turkey 

出 版 物：《Phyton-International Journal of Experimental Botany》 (国际实验植物学杂志（英文）)

年 卷 期：2023年第92卷第7期

页      面：2197-2210页

核心收录：

学科分类：0710[理学-生物学] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

主　　题：Salinity trace element uptake nitrogen assimilation plant physiology Carex morrowii 

摘      要：Carex species are widely used in many parts of the world and contain a large number of ecologically diverse *** the Carex species,some of them are known to be glycophytes,while others are *** morrowii Boott(Cyperaceae)is resistant to trample through their root structure and has an essential ornamental value in the landscape with their ***,no information was found about the level of salinity tolerance/sensitivity of the Carex morrowii among these *** the present study,changes in trace element contents(Na,K,Ca,Cu,Mn,Mg,Ni,Fe,P,Zn,and N)and their transport from roots to leaves,osmotic regulation,alterations in chlorophyll and carotenoid contents,nitrogen assimilation(nitrate reductase activity;NRA)and total soluble protein content in both roots and leaves of Carex morrowii under different salinity concentrations(50 mM,100 mM,200 mM and 300 mM NaCl)were examined in *** study provides the first detailed data concerning the responses of leaves and roots and the determination of the level of salinity tolerance/sensitivity of the Carex *** K+/Na+ratio was preserved up to 200 mM NaCl,and accordingly,the element uptake and transport ratios showed that they could control moderate NaCl *** homeostasis that is maintained even in 200 mM NaCl concentration can be effective in maintaining the structural integrity and selective permeability of the cell membranes,while 300 mM NaCl concentration caused decreased photosynthetic pigments,and deterioration in element content and ***,these data suggest that plant parts of Carex morrowii respond differently against varied levels of salinity *** the decrease in NR activity at 200 mM and 300 mM NaCl concentrations in the leaves,NR activity was maintained in the ***,Carex morrowii is moderately tolerant to salinity and the carotenoid content and osmotic regulation of Carex morrowii appears to be instrumental in its survival at diffe