菌根

Chromosomes Well-spread and clear metaphase chromosomes of carrot were obtained, after the pretreatment of root tips in vivo with two chemicals, cycloheximide and p-dichlorobenzene.

染色体观察用对二氯苯和放线菌酮40×10~(-6g·L-1的混合药剂胡萝卜根尖，通过压片获得了分散良好、形态清晰的有丝分裂中期染色体。

The recombinant plasmid pBI121-VP6 was transformed into Agrobacterium tumefaciens strainLBA4404 by freeze-thawing method and the introduced into the sterile tube culture shoot of tobacco NC89 and baoding alfalfa by leaf disc infection method.

以冻融法将pBI121-VP6重组质粒导入根癌衣杆菌LBA4404，用叶盘法转化于NC89烟草和保定紫花苜蓿的无菌试管苗。

PHap1 was first transformed into Agrobacterium tumefaciens strain LBA4404 by electroporation first and then introduced into the sterile tube culture seedlings of different susceptible potato eultivars'Mira','Zhong-5-1'and'Jinguan', and tobacco cultivar NC89, respectively, by the leaf disc infection method.

以电激法将pHap1导入根癌农杆菌LBA4404，用叶盘法分别转化马铃薯青枯病感病品种米拉、中-5-1、金冠以及烟草感病品种NC89的无菌试管苗。

Agrobacterium tumefacines-mediated transformation system is routinely used for genetic transformation in a wide range of plant species.

利用根癌农杆菌介导的遗传转化方法，将CryⅠA基因转入生物防治真菌毛壳菌中，转化率约为40～180个转化子·10-7个孢子。

The result showed that this strain could colonize in many plants, such as capsicum, tomato, eggplant, cabbage, lettuce, cowpea, wheat, corn and rice.

结果表明：该菌株的内生宿主范围较广，可以通过种子、叶片表面以及根际土壤等进入辣椒、番茄、茄子、白菜、生菜、豇豆、小麦、玉米、水稻等多种植物体内定殖。

From 18 species of host plants including cotton, eggplant, horseradish, broad bean etc.distributed in Jiangsu, Shandong, Siehuan, Liaonin, Hebei and Inner Mongolia were inoculated on seedlings of eggplant and tomato at room temperature to test their virulence differentiation.

自江苏、山东、四川、辽宁、河北及内蒙古等省的棉花、茄子、辣根，蚕豆等18种植物上分离的大丽轮枝菌，在温室条件下，测定了对茄子、番茄幼苗的致病力分化。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。