Germination of embryo in soybean anther culture

A large number of experiments about induction of callus, embryo and germination of regeneration plants were done in soybean anther culture. Screening for genotypes, low_temperature pretreatment for floral buds, constituent of hormone in medium and effects of different temperatures on induction rate of callus and embryo were studied. It was found that the TDZ played an important role in embryo induction and germination. 28 genotypes had reaction competent to the anther culture in all 110 genotypes. Induction rate of callus was 26%-68.1%. Plant differentiation rate was 0.5%-2.0%.     

萝卜硒素营养和富硒规律研究初探

萝卜对硒的富集能力较强,其中叶的富硒能力显著高于其它部位,苗期硒含量显著高于后期,但后期植株硒积累量仍显著高于苗期。     

从洋姜中提取菊糖

对影响从洋姜中提取菊糖及减少提取液中果胶质含量的一些因素进行了研究,以洋姜干片为原料,在pH值为4～5,温度为60～80℃条件下,30～45min内重复浸提3次,菊糖提取率可达90％左右,果胶质含量可减至0．6％左右．     

祁州漏芦提取物（MPE—1）对人红细胞保护作用的研究

采用荧光分光偏振技术以及ＳＤＳ－聚丙烯酰胺凝胶电泳（ＰＡＧＥ）技术，研究了祁州漏芦提取液（ＭＰＥ－１）对人红细胞膜流动性的保护作用以及对细胞膜蛋白高聚物（ＨＭＰ）生成的影响。实验结果表明，ＭＰＥ—１具有超氧化物歧化酶（ＳＯＤ）相似的保护人红细胞的良好作用。为今后研制开发祁州漏芦适应原药物提供了细胞学依据。     

内蒙古柴胡属植物花粉形态及其分类

本文首次用扫描电镜观察了内蒙古柴胡属７种１１株植物的花粉形态。该属植物花粉形态相对一致，但在花粉粒形状、纹饰细微结构和孔膜等方面有差异。根据形状和孔膜特点本属花粉可分为近菱形，卵形和近长方形等三类；以外壁纹饰特征又可分为皱波状纹饰较明显和不明显两类，后两类与以小总苞片特征所得的类群基本吻合。柴胡属某些种花粉形态在种内有变异现象。     

对银柴胡施用稀土的研究

对银柴胡施用稀土产生的生理效应以及施用稀土的技术进行了探讨，实验证明：施用稀土能够提高种子的发芽率，增加萌发种子的呼吸强度，增加幼苗叶绿素含量，增强根系活力，增加根的鲜重。用０．２５ｇ·Ｌ￣（－１）稀土浸种处理的效果最好。     

从有关成份分析结果看碱谷的开发前途

碱谷耐盐碱、抗旱涝；在不同肥力的土壤上，籽粒产量：２６２５～４８７５ｋｇ／ｈａ；干草产量：１０５００～１８０００ｋｇ／ｈａ。有关成份分析结果表明，碱谷种子含２０．６０％粗脂肪，其中不饱和脂肪酸占脂肪酸总量３／４，软脂酸占１／４，两项合占总量９９％；粗蛋白含量为８．９７５％，蛋白质含量为８．２６０％，蛋白质由１９种氨基酸组成，不仅人体必需的８种氨基酸齐备，且其含量达３．４９３％，占总氨基酸库３８．８７％；淀份含量为５０．３７％。这些为碱谷的开发提供了科学依据。     

磁处理水对胡萝卜块根组织培养的影响

采用不同强度磁处理水对胡萝卜块根进行组织培养，结果表明磁处理水在初代培养和继代培养过程对培养物生物重量的增殖有显著促进作用，但对其过氧化物酶同工酶分析，发现只是酶带颜色深浅有差异，而不影响酶谱带分布．     

（K，L）－内射性和（K，L）－伪内射性

引进了（Ｋ，Ｌ）－内射性和（Ｋ，Ｌ）－伪内射性，这里Ｋ和Ｌ分别是模范畴上短正合列类的子类和模范畴态射类的子类。然后对这样定义的广义内射性进行了不依赖于预根理论的讨论，并对伪内射性与伪投射性之间的关系作了讨论。     

Leishmania donovani in hamsters: Stimulation of non-specific resistance by novel lipopeptides and their effect in antileishmanial therapy

Several novel type of lipopeptides were synthesized and evaluated for their ability to stimulate non-specific resistance againstLeishmania donovani infection. Peritoneal macrophages isolated from young male hamsters treated with muramyl dipeptide (MDP) and various synthetic lipopeptides (6 mg/kg i.p.) 7 days earlier, were cultured in vitro and challenged 24 h later withL. donovani promastigotes. One lipopeptide, Central Drug Research Institute (CDRI) compound 86/450, exhibited significantly higher immunostimulatory activity than MDP. Its prophylactic activity was further confirmed in hamsters by giving 2 split doses of 3 mg/kg of the compound spaced at 2 weeks, i.e. on day –7 and +7 of challenge withL. donovani amastigotes. The prophylactic effect lasted for 7 days following the last treatment with compound 86/450. The antileishmanial action of sodium stibogluconate (SAG) was also found to be enhanced by 16% in hamsters primed with compound 86/450.CDRI Communication No. 5034.