草

The nine antidiabetic medicinal plants were Anredera cordifolia van Steenis, Alternanthera paronychioides St. Hil., Basella alba L., Callisia repens L., Duchesnea indica Focke, Psidium guajava L., Ruellia tuberosa L., Tripogandra cordifolia Aristeg., Talinum paniculatum Gaertn.. Their antioxidant activities were assessed using trolox equivalent antioxidant capacity, DPPH (1,1-diphenyl-2- picrylhydrazyl) staining, DPPH radical scavenging, reducing power and ferric reducing antioxidant power methods.

这九种治疗糖尿病的药用植物包括藤三七、绿苋草、落葵、铺地锦竹草、蛇莓、芭乐、消渴草、怡心草、土人参等，它们的抗氧化活性分析方法包括：Trolox当量的总抗氧化能力、DPPH染色法、清除DPPH自由基能力、还原力及铁还原抗氧化能力等。

As a result, synthesizing the comparison of the characteristics of drought resistance, cold tolerance, barren resistance and production of these ten grasses, we have found that the resistance of Bromus inermis,Festuca arundinacea was better , and consequently Bromus inermis , Festuca arundinacea were proofed to be favorable grasses for developing pasture in northern China in the future. Whereas, Bromus biebersteinii, Festuca rubra,Dactylis glomerata,Phleum pratense,Agropyron desertorum,Agropyron smithii,Elytrigia elongate and Phalaris arundinacea were worse, and therefore measures to local conditions and prudence in the production practice were advocated.

因此，综合抗旱性、耐寒性、耐贫瘠性及田间的生产性能的比较研究，10种牧草中的无芒雀麦、苇状羊茅的抗性表现较好，是今后我国北方地区进行人工草地建设的良好牧草种类；而草地雀麦、紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草、猫尾草、鸭茅和草芦表现不好，在生产实践中应因地制宜、谨慎推广。

In the aspect of grass cold tolerance, these ten grasses were classified into three types by the cluster analysis, based on winter survival adaptability and LT50 measured under low temperature treatment. High cold tolerance: Bromus biebersteinii,Bromus inermis,Festuca arundinacea, Agropyron desertorum,Elytrigia elongate, Phleum pretense; medium cold tolerance: Festuca rubra, Agropyron smithii,Dactylis glomerata; low cold tolerance: Phalaris arundinacea.

禾本科牧草在耐寒性方面，根据牧草越冬适应性表现和低温处理下用电导法得出的半致死温度， 10种牧草进行聚类分析结果表明：耐寒性强的是草地雀麦、无芒雀麦、苇状羊茅、沙生冰草、长穗偃麦草、猫尾草；耐寒性中等的是紫羊茅、蓝茎冰草、鸭茅；耐贫瘠性最弱的是草芦。

By the cluster analysis, 10 grasses were classified into three types—of high barren resistance: Bromus inermis,Festuca arundinacea, Dactylis glomerata; of medium barren resistance: Bromus biebersteinii,Phleum pratense,Phalaris arundinacea; of low barren resistance: Festuca rubra, Agropyron desertorum,Agropyron smithii,Elytrigia elongate.

对10种牧草进行聚类分析，得出耐贫瘠性强的是无芒雀麦、苇状羊茅、鸭茅；耐贫瘠性中等的是草地雀麦、猫尾草、草芦；耐贫瘠性最弱的是紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草。

In order to select a kind of eminent grass which is adaptable to the northern China, the present thesis studies ten kinds of grasses from Gramineae, Bromus biebersteinii,Bromus inermis,Festuca arundinacea ,Festuca rubra,Dactylis glomerata ,Phleum pratense,Agropyron desertorum,Agropyron smithii,Elytrigia elongate and Phalaris arundinacea,and also explores the physiological aspects of their drought resistance, cold tolerance and barren resistance. The drought resistance experiment was conducted to study 10 grasses under water stress during seedling stage by simulating indoor drought environment.

为了能选适应我国北方地区的抗旱、耐寒、耐贫瘠特性的优良牧草，本研究以草地雀麦、无芒雀麦、苇状羊茅、紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草、猫尾草、鸭茅、草芦为材料，在抗旱、耐寒和耐贫瘠性特性三方面的生理方面进行了探索研究。

Morphological studies indicate that the family Cabombaceae possesses many primitive characters and experiences reduction in features during adaptation to aquatic environments.

水盾草科是双子叶植物。水盾草科包括2属：水盾草属(Cabomba Aublet。)和莼菜属(Brasenia Schreb。)。形态学研究显示水盾草科具有许多原始性状，而且在其适应水生环境的过程中经历了性状退化。

Rhytidiadelphus triquetrus, Abies nephrolepis and Ass. Calamagrostis angustifolia, Carex schmidti. The mentioned associations provided the most suitable habitat for Valeriana amurensis.

结果显示：拟垂枝藓、臭冷杉林和小叶章、臌囊苔草沼泽中黑水缬草的重要值较大，分别为49.9%和49.1%，即黑水缬草生长的最佳生境为拟垂枝藓、臭冷杉林和小叶章、臌囊苔草沼泽生境。

RESULTS: Sixteen compounds, ursolic acid (1), indole-3-carboxaldehyde (2), indole-3-carboxylic acid (3), p-coumaric acid (4), azelaic acid (5), N-trans-feruloyl tyramine (6), blumenol A (7), 2-hydroxy-3-methylanthraquinone (8), rubiadin l-methyl ether (9), rubiadin (10), quercetin (11), luteolin (12), chrysoeriol 6-C-β-boivinopyranosyl-7-O-β-glucopyranoside (13), alternanthin (14), stigmasta-5, 22-dien-3β-ol (15), and α-spinasterol (16) were obtained from the EtOAc extract of Alternanthera philoxeroides.

结果：得到并鉴定了16个化合物，分别为乌苏酸(1)、吲哚-3-甲醛(2)、吲哚-3-甲酸(3)、对-香豆酸(4)、壬二酸(5)、N-反式阿魏酰基酪胺(6)、布卢姆醇A(7)、2-羟基-3-甲基蒽醌(8)、甲基异茜草素-1-甲醚(9)、甲基异茜草素(10)、槲皮素(11)、木犀草素(12)、柯伊利素-6-C-β-波伊文糖基-7-O-β-吡喃葡萄糖苷(13)、莲子草素(14)、豆甾醇(15)和α-菠甾醇(16)。

Study of effcient regeneration system Through the study of two Lavender cultivars on regeneration system,the author obtainedthe efficient regeneration system of English Lavender and Dentata hybrid Lavender matureleaves.

本研究旨在通过对薰衣草再生体系及农杆菌介导的遗传转化体系的研究，将基因vgb导入到薰衣草中，以期提高薰衣草耐涝能力和精油产量，同时为利用转基因技术改良薰衣草品种的广泛运用打下基础。

Variation of important value of dominant weed is that in spring and fall the dominant weed is Viola prionantha while in summer it is Digitaria ischaemum. In general management lawn community it is Leymus secalinus that is the dominant weed in spring and fall and Digitaria ischaemum in summer.

管理水平较差的草坪群落中，春季和秋季是早开堇菜占优势，夏季是止血马唐占优势；管理水平一般的草坪群落中春、秋季节是赖草占优势，夏季也是止血马唐占优势；管理水平较好的草坪群落中整个生长季是鼠掌老鹳草、鹅绒委陵菜、赖草占优势，且以鼠掌老鹳草的优势度最大。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。