菌体

However, yet the male agaric fruiting body is difficult to plant, but its mycelium could be planted on the artificial culture medium, and this myvelium does not have any request to the culture medium ,the mycelium grows vigorously on the culture medium.

然而，虽然桑黄子实体栽培困难，但其菌丝体却能够在人工培养基上生长繁殖，而且该菌对培养基的理化性质并无特殊要求，在营养丰富的培养基上菌丝长势旺盛、浓密。

The study aimed to establish the protoplast transformation system in Alternaria tenuissima.

［目的］建立极细链格孢菌的原生质体遗传转化体系。

The complex can improve the antibiosis activity to Escherichia coli.

配合物能提高配体对大肠杆菌的抗菌活性。

Ascogonium (pl. ascogonia) The female gametangium of certain fungi of the phylum.

产囊体：真菌门某些子囊菌中的雌性配子囊。

Result］ The explants were treated by 0.1% HgCl2 for 20 min and the asepsis material could be obtained.

结果］用0.1%升汞处理外植体20 min，可获得无菌材料。

The internal cause includes polarity variation , inbred variation , instability of hybridization and gene mutation . The external cause includes unfitting culture conditions , strain ag ing , unsuitable preservation and infection virus of asexuality propagation .

内因主要包括极性发生变异，自交产生的变异，杂交种性不稳定和基因突变；外因主要包括培养条件不适宜，菌种老化，菌种保藏不当和菌株无性繁殖体感染病毒。

Autotrophic mutants were prepared from six different stocks of a special group.

自养突变体是从一个特别类群的6个不同的原种菌系制备的。

After cotton plants are infected by V. dahiiea, the formation of gums and tyloses and the eventual sealing-off of the infected vessels are occured in plants or phytoalexin are producted. Physical restriction wilt or che...

棉株遭受黄萎病菌侵染后，以其内部形成一些胶状体、侵填体等物理障碍或产生一些植保素等生化障碍或两者同时发生的反应形式来表现抗性。

One L-isoleucine high-producing strain SW0370 was screened through protoplast fusion, shake flask compound screening, genetic marker test and single clone isolation and continuous passage cultivation.

3确定了亲株ISW330和AS1.495原生质体形成和再生及进行原生质体融合的最佳条件，采用原生质体融合技术最终筛选出一株带有目的遗传标记的L-异亮氨酸高产菌SW0370〓。

2The protoplast formation and regeneration and fusion conditions of strain ISW330 and AS 1.495 were studied in this thesis. One L-isoleucine high-producing strain SW0370 was screened through protoplast fusion, shake flask screening, genetic marker test and single clone isolation and continuous cultivation for generations.

2确定了亲株ISW330和AS1.495原生质体形成和再生及进行原生质体融合的最佳条件，采用原生质体融合技术最终筛选出一株带有目的遗传标记的L-异亮氨酸高产菌SW0370(Leu~-+Met~-+AEC~r+á-AB~r)。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐