菊科植物资源及其开发利用研究   总被引：17，自引：2，他引：17  

李玉平  龚宁  慕小倩  张兴 《西北农林科技大学学报(自然科学版)》2003,31(Z1):150-156

分析了菊科植物资源的种类、分布及化学成分,综述了近年来菊科植物在医疗、保健、农药及其他方面的研究现状,并针对此项研究所面临的问题,提出了菊科植物资源及其进一步开发利用的几点建议。  相似文献   

菊科植物蓬蒿提取物抑菌活性研究   总被引：1，自引：1，他引：0  

陈建中  葛水莲  邢芳倩 《北方园艺》2011,(22):126-128

以菊科蓬蒿属蓬蒿为试材,研究了水、50％乙醇和100％乙醇3种蓬蒿浸提物对灰葡萄孢菌、链格孢菌和黑根霉菌的孢子萌发和菌丝生长的影响.结果表明:蓬蒿提取物对灰葡萄孢菌和黑根霉菌的菌丝生长和孢子萌发具有较好的抑制作用,对链格孢菌的菌丝生长和孢子萌发的抑制作用不明显；对于灰葡萄孢菌,蓬蒿乙醇提取物对菌丝生长和孢子萌发的抑制作用大于水提物；黑根霉表现与其相反,水提取物比乙醇提取物对菌丝生长和孢子萌发的抑制作用更明显.  相似文献   

黑沙蒿乙醇粗提物对奶山羊体外试验CLA含量及C₁₈不饱和脂肪酸生物氢化率的影响     

王丽芳  卢德勋 《畜牧与饲料科学》2011,(Z1):62-64

采用体外试验研究添加不同浓度的菊科黑沙蒿乙醇粗提物对瘤胃微生物体外发酵脂肪酸生物氢化、CLA含量及其前体物trans-11C18:1含量的影响。黑沙蒿乙醇粗提物添加的剂量分别是0(对照组)、3、30、300及3000mg/L。培养时间分别是2、6及24h。在每个采样时间点、每个添加量均设3个重复。试验结果表明,添加黑沙蒿乙醇粗提物有降低C18不饱和脂肪酸生物氢化率的趋势,有增加CLA生成前体物trans-11C18:1脂肪酸含量的趋势,有增加CLA含量的趋势。  相似文献   

秦岭山区204种植物对粘虫生物活性测定   总被引：11，自引：0，他引：11  

张宏利  冯俊涛  陈安良  张根良  张兴 《西北林学院学报》2004,19(3):92-94,112

以粘虫为试虫，对采自秦岭山区的204种植物样品进行了室内生物活性筛选，结果表明，供试样品中，有87种对试虫有50％以上拒食或毒杀效果，其中菊科21种、蔷薇科7种、毛茛科5种；大花金挖耳、蓼子朴、天明精、南蛇藤、遏兰菜、巴东醉鱼草等植物对试虫的拒食和毒杀效果均大于80％，值得进一步研究。  相似文献   

甘肃菊科牧草霜霉病调查研究     

孟有儒 《草业科学》2003,20(4):40-42

经调查，甘肃12种菊科牧草上发生霜霉病，由盘霜霉属的7个种、轴霜霉属1个种和首次在甘肃发现的类霜霉属2个种侵梁所致，并发现鉴定盘霜霉新组合种和变种各1个。霜霉病一般在河西地区较陇东、陇南发病严重，有的发病率高速40％以上。  相似文献   

几种菊科植物对矿区土壤重金属的吸收研究   总被引：1，自引：0，他引：1  

李庚飞 《北方园艺》2012,(6):72-74

以潼关县黄金生产区及附近菊科植物(金盏银盘、叉枝蒿和白蒿)为研究对象,采用火焰原子吸收光谱法对其铜、镉和锌等重金属含量进行了测定,以便确定建立人工生态系统的植物种类。结果表明:在3种植物中,金盏银盘的根对Cu的吸收效果最好,其值为98.58mg/kg,叶片对Zn的吸收效果较好,茎对Cd的吸收效果最好,且金盏银盘地上部分对Cd的富集能力达到405.9mg/kg。  相似文献   

野生菊科绿肥的有机肥品质评价     

王松林  黄冬芬  刘国道  郇恒福  高玲  杨虎彪 《草地学报》2014,22(5):1131-1134

为探明我国菊科绿肥的肥用价值,分析了39份采于海南等地的菊科绿肥种质矿质养分含量,进行有机肥分级。结果表明：菊科绿肥的含氮量为0.54%~4.17%（平均为2.01%）,含磷量为0.20 %~3.33%（平均为1.36%）,含钾量为0.69%~5.05%（平均为2.41%）;菊科绿肥均为三级以上有机肥,并且绝大多数为一级与二级有机肥,三级有机肥最少。表明菊科总体上是品质较高的有机肥。  相似文献   

4种菊科植物的抗旱性评价     

许宏刚  吴永华  廖伟彪  张建旗 《甘肃农业科技》2011,(10):15-17

通过对大花滨菊、金鸡菊、‘北美黄’北京夏菊、北京小菊4种菊科植物的株高变化、相对电导率、丙二醛含量、脯氨酸含量和可溶性总糖含量等生理生化指标的测定,评价了它们的抗旱性。综合各项指标,4种菊科植物之间的抗干旱能力有着明显的差异,其耐干旱能力由强到弱的排序依次为北京小菊、‘北美黄’北京夏菊、金鸡菊、大花滨菊。  相似文献   

Phenylalanine ammonia‐lyase activity and ortho‐diphenolic content with regard to boron nutrition in sunflower leaves.     

M.V. Gómez‐Rodríguez  J. de D. Luna del Castillo  M.C. Alvarez‐Tinaut 《Journal of plant nutrition》2013,36(17):2231-2245

Homogenates were prepared from the leaves of hydroponically cultivated sunflower (Helianthus annuus, L.) under deficient, normal and toxic B conditions and the phenylalanine ammonia‐lyase activity together with the ortho‐diphenolic and micronutrient content were measured every week from one month to flowering

The restoration of enzymatic activity on the exogenous addition of borate “in vivo”; was also studied.

Both B toxicity and deficiency resulted in increased phenylalanine ammonia‐lyase activity in the homogenates

The toxicity effect was early and sustained and the deficiency effect late and transitory. “In vitro”; borate addition to the reaction mixture did not significantly change the phenylalanine‐ammonia‐lyase activity in the homogenates.

There was no statistical correlation between the phenylalanine‐ammonia‐lyase activity and any micronutrient content in leaves.

A high accumulation of ortho‐diphenolics appeared in B‐deficient leaves only after 28 days of differential culture and may be responsible for the drop in phenylalanine‐ammonia‐lyase activity noted at this time.  相似文献   

Polyphenol oxidase activity and ortho‐diphenolic content in sunflower leaves in relation to boron nutrition.     

M.V. Gómez‐Rodríguez  J. de D. Luna del Castillo  M.C. Alvarez‐Tinaut 《Journal of plant nutrition》2013,36(17):2195-2209

Homogenates were prepared from the leaves of hydroponically cultivated sunflowers (Helianthus annuus, L.) under deficient, normal and toxic B conditions and the polyphenol oxidase activity together with the ortho‐diphenolic and micronutrient content was measured every week from one month to flowering.

B deficiency slightly depressed polyphenol oxidase activity and B toxicity decreased it significantly at all times, the response fitting a line versus the logarithm of the B concentration in solution. We found a positive correlation between polyphenol oxidase activity and the B content in leaves.

B action on enzymatic activity seemed not to be caused by direct interaction with substrates as the infiltration of B into deficient leaves did not restore the normal activity

According to our results we suggest that polyphenol oxidase activity may be a valid functional parameter to indicate the nutritional status of B in sunflower plants, if its specificity for B can be demonstrated.

The ortho‐diphenolic content did not change with the B levels used in our experiments. Neither did we find any correlation between enzymatic activity and the o‐diphenolic content of the leaves.  相似文献