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排序方式: 共有699条查询结果,搜索用时 15 毫秒
691.
Saeed Rauf Muhammad Sajjad Haider Sultan Ali Tariq Mahwish Ejaz Ejaz Ashraf Ijaz Rasool Noorka 《Bioremediation Journal》2013,17(4):212-230
ABSTRACT Experiments were carried out with various salts and their combinations to ascertain the impact of these salts on seedling traits of fodder species and to identify tolerant species. Length-based traits showed a repressed effect, whereas weight-based traits were increased under salt stress. Furthermore, accumulation of Na+, Ca2+, and Cl? ions and metals (Cu2+, Fe2+, and Al3+) increased in various organs of seedlings due to various salt treatments. Contrastingly, K+, K+/Na+, and Ca2+/Cl? decreased, showing priority for specific salts. Seedling traits, such as shoot length sensitivity and shoot biomass, provide an effective mean of selection for tolerant or susceptible genotypes. Diverse types of tolerance mechanisms were present in cultivars to detoxify the effect of ions and metals. Cultivars that showed low susceptibility index, high shoot biomass, and high metal concentration were salt includers and could be utilized for bioremediation of the affected areas, whereas tolerant cultivars that showed low susceptibility index, metals concentration, and comparable shoot biomass to that of the control were salt excluders and could be utilized for fodder purposes. 相似文献
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Aqueous extract of the root of P. vulgare (PV) produced CNS depressant effect. It decreased the spontaneous motor activity, prolonged the pentobarbitone induced hypnosis, reduced body temperature and increased the reaction time to pain stimuli. PV also caused prevention against supramaximal electroshock and pentylenetetrazol induced seizures. PV showed a positive inotropic and chronotropic effect on perfused frog heart and caused hypotension and tachycardia in anaesthetised dogs. The effects were blocked by propranolol. PV produced dose dependent inhibition of contractions of rabbit small intestine and the effect was blocked by propranolol. PV appears to possess CNS depressant and beta-adrenoceptor agonistic activities. 相似文献
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Russian Journal of Bioorganic Chemistry - The abuse of antibiotics in therapy has lead to the development of resistance in the target organisms. The failure of presented antibiotics to control... 相似文献
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BioMetals - The present study presents synthesis, characterization and first principle studies on metal chelates, (1–12), of sulfonamide-isatin reacted ligands (S1–S3). All the products... 相似文献
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