诱变

This program is to explore the high tech and traditional breeding of a new variety of porphyra haitanensis, in hope of its fast growth, high quality and endurance of high temperature. this variety has been growing various areas, and it shows that is yield increases above to 26 %-30%, and the content of three main pigments (phycoerythrin, phycocyanin and chlorophyll a) increases 10 % at least. and it has stronger capability of resisting disease and fester.

本项目利用人工诱变和体细胞单克隆技术等高新技术和传统的选择育种相结合的方法，分离出生长快、优质，高产，抗高温等的优良品种，在生产上大面积推广应用，并获得了分离坛紫菜稳定色素突变体的技术和建立坛紫菜的快速良种选育实用技术；新品种亩产提高26%-30%，3种主要色素(藻红蛋白、藻蓝蛋白、叶绿素a)提高10%以上，抗病烂能力较强。

This program is to explore the high tech and traditional breeding of a new variety of Porphyra haitanensis, in hope of its fast growth, high quality and endurance of high temperature. This variety has been growing various areas, and it shows that is yield increases above to 26 %-30%, and the contentof three main pigments (phycoerythrin, phycocyanin and chlorophyll a) increases 10 % at least. And it has stronger capability of resisting disease and fester.

本项目利用人工诱变和体细胞单克隆技术等高新技术和传统的选择育种相结合的方法，分离出生长快、优质，高产，抗高温等的优良品种，在生产上大面积推广应用，并获得了分离坛紫菜稳定色素突变体的技术和建立坛紫菜的快速良种选育实用技术；新品种亩产提高26%-30%，3种主要色素（藻红蛋白、藻蓝蛋白、叶绿素a）提高10%以上，抗病烂能力较强。

YEH S D%GONSALVES D Evalution of induced mutants of Papaya ringspot virus for control by cross protection Phytopathology , 1984,9

郑贵彬%符云华 TMV弱毒DN60-3等的诱变及其对番茄病毒病的保护效果陕西农业科学， 1986，6

Using the mechanism of the nuclear reaction of accelerated 7Li +3 ions with the inner target in mutant material i.e 1H( 7Li, 7Be)n, the biological effects were studied. The wheat seeds were irradiated with the doses ranged from 1.416×10 10 ions/cm 2 to 1.416×10 12 ions/cm 2. It was found that the cell membrane ruptured, the plasmolysis occurred, the nucleus shape changed.

将加速器7Li+ 3 离子束与生物体内遗传物质发生1H( 7Li，7Be)n内靶特征核反应诱发核酸分子结构变化的机制应用于生物诱变，辐照剂量在 1 41 6× 1 0 10 粒子 cm2 - 1 41 6× 1 0 12 粒子 cm2范围内处理的小麦，观察幼苗叶片细胞亚显微结构，发现离子束注入引起了细胞膜的破裂，细胞发生质壁分离，细胞核形状变得不规则等。

Objective To investigate the effect of outer space mutagenesis on the expression of polysaccharide in streptococcus.

目的 研究太空诱变对α-溶血性链球菌多糖分子表达的影响。

The potassium dichromate at different concentrations could increase the cell mitosis index.

以不同浓度的重铬酸钾为诱变剂，测定玉米根尖细胞的微核率、有丝分裂指数和染色体畸变率。

Methods mEBP gene was predicatively analyzed by DNASIS software,and the mutations at sites 5 and 18 were induced by PCR site-directed mutagenesis.

方法以亲代EBP基因为基础，结合DNASIS软件理化性质分析确定突变碱基，应用PCR定点诱变技术进行第5、18位谷氨酰胺→赖氨酸的定点突变。

Methods mEBP gene was predicatively analyzed by DNASIS software, and the mutations at sites 5 and 18 were induced by PCR site-directed mutagenesis. The mEBP gene was cloned into prokaryotic vector pinpoint Xa-3 and transformed to E.

以亲代EBP基因为基础，结合DNASIS软件理化性质分析确定突变碱基，应用PCR定点诱变技术进行第5、18位谷氨酰胺→赖氨酸的定点突变。

The appropriate dose of radiation mutation was measured for maize, green gram, rice bean,proso millet...

测出了玉米、绿豆、红小豆、黍子、芝麻、大葱、银瓜，以VID_(50)作指标和山楂、玫瑰以GRD_(50)作指标的辐射诱变适宜剂量。

BACKGROUND AND AIM:To study the antimutagenesis and antioxidation properties of aqueous extract of Pulsatilla Chinensis Regel.

背景与目的：观察白头翁水提物的抗诱变和抗氧化作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。