Biochanin A triglycoside from Andira inermis

A new isoflavonol triglycoside, biochanin A 7-O-β- -apiofuranosyl-(1→5)-β- -apiofuranosyl-(1→6)-β- -glucopyranoside (1), was isolated from Andira inermis roots in addition to the known compounds genistein 7-O-β- -apiofuranosyl-(1→6)-β- -glucopyranoside and lanceolarin.     

Quercetin triglycoside from Capparis spinosa.

In addition to rutin, quercetin 3-O-glucoside and quercetin 3-O-glucoside-7-O-rhamnoside, the methanolic extract of the aerial parts of Capparis spinosa yielded the new flavonoid quercetin 3-O-[6'"-alpha-L-rhamnosyl-6"-beta-D-glucosyl]-beta-D-glucoside (1).     

New cytotoxic compounds from flowers of Lawsonia inermis L.

Three new compounds, a bicoumarin A (1), a biflavonoid A (2), and a biquinone A (3), as well as 12 other known compounds, were isolated from the flower of Lawsonia inermis L. The structures were elucidated by spectral analysis and new compounds 2 and 3 then were further confirmed by ECD calculations and single-crystal X-ray diffraction crystallography respectively. The cytotoxicity of the compounds against four cancer cell lines, including MCF-7, Hela, HCT-116, and HT-29 were evaluated using MTT assay. The IC₅₀ values of compounds 3 and 5 against MCF-7, Hela, HCT-116, and HT-29 were 2.24, 1.42, 24.29, and 7.02 μM and 6.1, 2.44, 5.58, and 10.21 μM respectively. The two compounds exhibited stronger inhibitory activities than the positive control 5-fluorouracil (IC₅₀ = 7.34, 11.50, 36.17, 18.83 μM) against the four tested cell lines. These results demonstrated that compounds from the flowers of L. inermis L. showed cytotoxic activity on MCF-7, Hela, HCT-116, and HT-29 cell lines.     

散沫花育苗技术

根据散沫花(Lawsonia inermisL.)种子播种育苗有别于其它树种的特点,从种子采收处理、萌芽试验、苗床准备、播种及覆盖物、育苗基质配置、分床、苗期管理、病虫害防治、苗木分级出圃等方面进行系统播种试验研究,形成了一套有效的散沫花育苗技术体系.     

水土保持优良牧草--无芒雀麦

概述了无芒雀麦作为优良牧草的生物学特性及利用价值,总结了栽培与管理中的技术要点。     

Trypsin inhibitory activity of Lawsonia inermis

The ethanolic extract of Lawsonia inermis leaves and lawsone tested for trypsin inhibitory activity showed an IC(50) value of 64.87 and 48.6 microg/ml, respectively.     

河麂的食性分析及饲养繁殖研究

2004年12月至2011年9月,对宽甸地区东北部野生河麂栖息地环境、生态习性进行专访和实地考察,对人工饲养河麂的繁殖行为及食性等进行了大量较详细的观察、分析,为今后河麂的人工饲养、种群增殖提供可靠的参考依据。     

日本无刺楤木促成芽营养成分的比较研究

以日本无刺楤木(Aralia elatavar.inerm is)休眠枝条离体茎段促生芽为试验材料,对芽体内可溶性蛋白、维生素C和可溶性糖含量进行了比较分析。试验分为5个处理组:不同茎段长度的产芽试验、不同茎段直径的产芽试验、不同茎段年龄的产芽试验,相同茎段不同营养条件下的产芽试验和同一茎段不同芽位的产芽试验。结果表明:(1)离体茎段长度为20 cm时,促生芽可溶性蛋白含量和维生素C含量最高,与其他长度处理差异极显著,可溶性糖含量差异不显著。(2)不同培养条件下,芽体内的3种营养成分差异均不显著。(3)不同直径处理组中,芽体内3种营养成分含量均存在极显著差异。直径为5.8 mm时可溶性蛋白和维生纱C含量最高,直径为8.8 mm时可溶性糖含量最高。(4)2年生茎段促生芽的可溶性蛋白、维生素C和可溶性糖含量均高于1年生茎段。(5)同一茎段不同芽位的促生芽,以下位芽3种营养成分含量为最高。     

浙江省獐的分布与资源调查

1997年5月1998年12月，以文献查阅、访问法、样方法和样带法对浙江省獐的分布的资源进行了调查、结果表明，獐在浙江省的重要分布区是除嵊泗以外的舟山海岛及宁波市的北仑、镇海和象山；次要分布区是余姚的北部、江北、鄞县的部分地区；一般分布区包括余杭、淳安、余姚（除北部以外）、勤县的一部分地区、奉化、宁海、金华、义乌、永康、江山以及遂昌。目前全省獐的资源量约为6000余只。     

Über nematizide Wirkungen der Henna-PflanzeLawsonia inermis gegen den WurzelnematodenMeloidogyne incognita

A suppressive effect was obtained by the henna plant (Lawsonia inermis) againstM. incognita development. Henna reduced tomato root gall numbers, number of the egg-laying females and rate of the nematode reproduction, when tomato and henna were grown together. Also, same, reduction in these nematode biological processes was found, when tomato plants were grown in soil containing root exudates of henna, but with less amount. When henna was grown alone, root gall index and the rate of nematode reproduction reduced to 75 and 99%, respectively, compared with those of tomato grown alone.     

日本木种根育苗试验初报

试验表明，日本木采用５ｃｍ长根段繁殖种苗最适宜，埋根基质以珍珠岩＋泥炭（１ｖ∶１ｖ）为最好，根段成苗率达８５％以上。     

悠悠枣丰产栽培技术

悠悠枣是河北省涿鹿县近年新发现的早熟鲜食地方枣品种。通过多年的观察试验研究．掌握了悠悠枣的主要特性．并从建园．土肥水管理、花期管理、整形、修剪、病虫害防治、采收、采后处理等方面总结了悠悠枣的丰产栽培技术．     

冬枣硝酸还原酶特性研究

在盆栽条件下,以沾化冬枣为试材,研究植株不同器官、不同时期NR活性的变化动态以及不同形态氮素对NR活性的影响.结果表明:叶片是冬枣NO-3还原的主要部位,NR活性以新生叶片中最高,其次为中部叶和基部叶;根系中NR活性以细根中较高,但明显低于叶片,而新生吸收根中几乎检测不到.日变化表明NR活性呈单峰曲线,以上午11:00左右最高.从NR活性的季节变化看:叶片NR活性先增加后下降,以夏季8月中旬较高;根系NR活性在6月、8月初和10月出现3次高峰.叶片涂抹不同浓度与不同形态氮素对NR活性的影响存在差异.涂抹40 mmol·L-1KNO34 h后,NR活性达到高峰,涂抹低浓度KNO3(＜80 mmol·L-1)可以显著提高NR活性,而高浓度KNO3(＞80 mmol·L-1)处理时NR活性不再升高,涂抹尿素也可提高NR活性,Glu和Gln对NR活性影响不大,Gly降低了NR活性.土壤施肥对NR的影响表明:追施尿素可以维持叶片较高的NR活性水平,提高叶片对NO-3的同化能力.     

不同处理对草地雀麦和无芒雀麦种子萌发的影响

为探讨解除草地雀麦和无芒雀麦种子休眠的处理方法,进行了不同处理试验。结果表明:草地雀麦种子的最佳处理方法为干湿交替处理,发芽率、发芽势和发芽指数分别为75.3%、69.3%和49.8%。无芒雀麦种子的最佳处理方法为40℃热水浸泡处理,发芽率、发芽势和发芽指数分别为72.0%、68.7%和48.3%。     

Myorelaxant and antispasmodic effects of the aqueous extract of Mitragyna inermis barks on Wistar rat ileum

Mitragyna inermis is used in the Senegal traditional medicine for treating stomach and intestinal disorders. At concentrations of 0.5, 0.75 and 1 mg/ml, the aqueous extract of M. inermis bark (AEMIB) significantly induced a decrease of the ileal basal tonus, respectively, from 37+/-1, 51+/-1 and 75+/-2% (P<0.05; n=5), compared to the baseline values. As well as atropine, AEMIB inhibited submaximal contractions induced by 0.01 mg/ml ACh with IC(50) value of approximately 0.75 mg/ml (n=5). These results show that AEMIB possesses both myorelaxant and antispasmodic actions in the ileum. This may justify the pharmacological basis for the popular use of Mitragyna for the treatment of gastrointestinal disorders.     

枣树脱除MLO组织培养技术概述

介绍枣树脱除MLO的理论依据,茎尖组织培养和热处理后茎尖培养2种常见脱除MLO的组织培养技术,阐述症状观察法、电子显微镜法、荧光染色等几种枣树脱毒苗检测方法的特点.     

四个野蔷薇杂交后代的性状表现及其筛选

以荷花蔷薇为父本与无刺野蔷薇杂交,结果表明,两蔷薇的杂交亲和性差,杂交后代园艺性状分离广泛.从杂交后代和荷花蔷薇自然实生后代中共选育5个优良株系:3株无刺,1个花高度瓣化,1株花型新颖奇特且花期晚14d.选出的优良株系生长健壮、花色花型优美,可作园林美化植株.     

枣、拐枣和君迁子等叶片中Vc含量的变化

以枣Ziziphus jujuba var. inermis、君迁子Diospyros lotus和拐枣Hovenia acerba等几种高Vc植物为材料,对叶片Vc含量及Vc存在形态(总Vc、氧化型Vc、还原型Vc)的年变化、日变化及随叶龄的变化进行了初步的研究.结果表明:植物叶Vc的年变化明显,枣叶Vc累积高峰在9月,君迁子叶则在5～7月,而拐枣叶Vc的存在形态变化极大.植物叶Vc亦存在日变化,总Vc积累高峰时间在中午.此外叶Vc随叶龄不同而变化,一般以稳定叶中Vc含量较高.因此,对高Vc植物Vc含量和存在形态的变化规律的认识,为科学地合理加工利用植物Vc资源提供了理论依据.     

来自心灵的呐喊——《生命的喟叹》一书在京举办签售活动

4月1日,由中国野生动物保护协会组织50多位作家编写以反映林业生态建设成果、宣传保护野生动植物为主题的《生命的喟叹》一书,在北京五府井新华书店举行了签售活动.著名作家张抗抗、舒乙、赵大年、查干、方敏等出席,并与广大读者交流对自然生态的认识.     

A caryophyllane-type sesquiterpene,caryophyllenol A from Valeriana amurensis

A new caryophyllane derivative, caryophyllenol A, and a new germacrane derivative, isovolvalerenal D, together with 11 known sesquiterpenoids, were isolated from a petroleum ether partition of the roots and rhizomes of Valeriana amurensis. Structure elucidation of caryophyllenol A and isovolvalerenal D was accomplished on the basis of various spectroscopic techniques including HRESIMS and 2D NMR analyses. The structure of caryophyllenol A was further confirmed by X-ray crystallography and using quantum-chemical ECD calculation adopting TDDFT method. Caryophyllenol A and other eight sesquiterpenoids were evaluated for sedative activity with the model of Drosophila melanogaster, and eight of them showed the effect of prolonging the total sleeping time (TST) of D. melanogaster, displaying significant sedative action.