[Objective] This study aimed to investigate the salt-tolerance mechanism of sweet potato.[Method]Two sweet potato varieties of Xu 25-2(salt-tolerant cultivar)and Triumph 100(salt-sensitive cultivar)were treated by sod...[Objective] This study aimed to investigate the salt-tolerance mechanism of sweet potato.[Method]Two sweet potato varieties of Xu 25-2(salt-tolerant cultivar)and Triumph 100(salt-sensitive cultivar)were treated by sodium chloride with the concentration of 0 mmol/L and 100 mmol/L.After 20 days,Na+ content and Na+/K+ ratio in the roots,shoots and leave were determined by the flame photometer,while dry weight and fresh weight of roots,shoots and leave in different varieties were also studied.[Result]The growth of two sweet potato varieties was inhibited under salt stress,so the plant became shorter,leaf and root became fewer,dry weight of roots and leave decreased,but seedlings of Xu 25-2 were inhibited slightly.Furthermore,Na+ content and Na+/K+ ratio in roots,shoots and leaves of two sweet potato varieties increased.Na+ content of salt-tolerant Xu 25-2 was low in roots,shoots and leaves,while Na+ content of salt-sensitive Triumph 100 was high in shoots and leave of seedlings,but the change range of Xu 25-2 was less than that of Triumph 100.[Conclusion]The lower Na+ content and Na+/K+ ratio in leaves under salt stress were the most important characteristics for salt-tolerance of sweet potato varieties.展开更多
目的:观察中医辨证治疗颞下颌关节病的临床疗效。方法:将150例颞下颌关节病患者采用随机对照法随机分为两组。治疗组120例辨证分为风寒湿痹型、肝肾亏虚型、气滞血瘀型和肝郁脾虚型4型,分别给予中药口服,其中风寒湿痹型给予独活寄生汤(...目的:观察中医辨证治疗颞下颌关节病的临床疗效。方法:将150例颞下颌关节病患者采用随机对照法随机分为两组。治疗组120例辨证分为风寒湿痹型、肝肾亏虚型、气滞血瘀型和肝郁脾虚型4型,分别给予中药口服,其中风寒湿痹型给予独活寄生汤(独活、桑寄生、杜仲、牛膝、细辛、秦艽、茯苓、肉桂心、防风、川芎、当归、白芍、干地黄、甘草),肝肾亏虚型给予桂附地黄汤加减(熟地黄、山茱萸、山药、牡丹皮、泽泻、茯苓、制附子、肉桂),气滞血瘀型给予七厘散加减(血竭、麝香、冰片、乳香、没药、红花、儿茶),肝郁脾虚型给予逍遥散加减(柴胡、当归、白芍、白术、茯苓、甘草、生姜、薄荷);同时联合红花酒(红花、当归、赤芍、紫草)溻渍和开口功能锻炼。对照组30例给予尼美舒利分散片,每次0.1 g,每日2次,饭后口服;玻璃酸钠注射液2 m L,关节腔内注射,每周1次。两组均以2周为1个疗程,治疗1个疗程后判定疗效。结果:治疗组气滞血瘀型痊愈21例,显效5例,有效3例,无效1例,有效率为96.67%;肝郁脾虚型痊愈20例,显效5例,有效5例,无效0例,有效率为100.00%;肝肾亏虚型痊愈20例,显效7例,有效2例,无效1例,有效率为96.67%;风寒湿痹型痊愈19例,显效6例,有效4例,无效1例,有效率为96.67%。对照组痊愈15例,显效7例,有效1例,无效7例,有效率为76.67%。两组对比,差别有统计学意义(P<0.05)。结论:中医辨证治疗颞下颌关节病治愈率高,复发率低。展开更多
基金Supported by the National Natural Science Foundation(30670177)Scientific Research Foundation for the Outstanding Young Scientist of Shangdong Province(006BS06002)National Ministry of Education Doctoral Fund(20050445003)~~
文摘[Objective] This study aimed to investigate the salt-tolerance mechanism of sweet potato.[Method]Two sweet potato varieties of Xu 25-2(salt-tolerant cultivar)and Triumph 100(salt-sensitive cultivar)were treated by sodium chloride with the concentration of 0 mmol/L and 100 mmol/L.After 20 days,Na+ content and Na+/K+ ratio in the roots,shoots and leave were determined by the flame photometer,while dry weight and fresh weight of roots,shoots and leave in different varieties were also studied.[Result]The growth of two sweet potato varieties was inhibited under salt stress,so the plant became shorter,leaf and root became fewer,dry weight of roots and leave decreased,but seedlings of Xu 25-2 were inhibited slightly.Furthermore,Na+ content and Na+/K+ ratio in roots,shoots and leaves of two sweet potato varieties increased.Na+ content of salt-tolerant Xu 25-2 was low in roots,shoots and leaves,while Na+ content of salt-sensitive Triumph 100 was high in shoots and leave of seedlings,but the change range of Xu 25-2 was less than that of Triumph 100.[Conclusion]The lower Na+ content and Na+/K+ ratio in leaves under salt stress were the most important characteristics for salt-tolerance of sweet potato varieties.
文摘目的:观察中医辨证治疗颞下颌关节病的临床疗效。方法:将150例颞下颌关节病患者采用随机对照法随机分为两组。治疗组120例辨证分为风寒湿痹型、肝肾亏虚型、气滞血瘀型和肝郁脾虚型4型,分别给予中药口服,其中风寒湿痹型给予独活寄生汤(独活、桑寄生、杜仲、牛膝、细辛、秦艽、茯苓、肉桂心、防风、川芎、当归、白芍、干地黄、甘草),肝肾亏虚型给予桂附地黄汤加减(熟地黄、山茱萸、山药、牡丹皮、泽泻、茯苓、制附子、肉桂),气滞血瘀型给予七厘散加减(血竭、麝香、冰片、乳香、没药、红花、儿茶),肝郁脾虚型给予逍遥散加减(柴胡、当归、白芍、白术、茯苓、甘草、生姜、薄荷);同时联合红花酒(红花、当归、赤芍、紫草)溻渍和开口功能锻炼。对照组30例给予尼美舒利分散片,每次0.1 g,每日2次,饭后口服;玻璃酸钠注射液2 m L,关节腔内注射,每周1次。两组均以2周为1个疗程,治疗1个疗程后判定疗效。结果:治疗组气滞血瘀型痊愈21例,显效5例,有效3例,无效1例,有效率为96.67%;肝郁脾虚型痊愈20例,显效5例,有效5例,无效0例,有效率为100.00%;肝肾亏虚型痊愈20例,显效7例,有效2例,无效1例,有效率为96.67%;风寒湿痹型痊愈19例,显效6例,有效4例,无效1例,有效率为96.67%。对照组痊愈15例,显效7例,有效1例,无效7例,有效率为76.67%。两组对比,差别有统计学意义(P<0.05)。结论:中医辨证治疗颞下颌关节病治愈率高,复发率低。
