分生组织的

Score GR and 30% Armure EC showed best inhibiting to mycelial growth, but the 10% polyoxin B DP was the worst. Leaves of four turfgrass species (Cynodon hybrid, Lolium perenne, Agrostis plustris, Poa pratensis) were inoculated with conidial suspensions of C.verruculosus.

喷雾病原菌分生孢子悬浮液于狗牙根、黑麦草、高羊茅、早熟禾等几种草坪草活体叶片上并保湿培养，在接种后不同时间点分别从每个寄主上取样，对样品进行组织透明、染色，观察病原菌对寄主植物的侵染过程。

The Cork was consisted of five or six layer long cells. The secondary phloem occupied 46% of the diameter of root, and the parenchymas cell was abundant of the inclusions. The secondary xylem consisted of vessel, xylary radial ,and a little of xylary parenchyma cells. Some segment of hypha, swelled hypha, pelotons and conidiophore were colonied in cork and secondary phloem.

周皮由木栓层，木栓形成层和栓内层组成，其中木栓层由5～6 列长形细胞组成；维管组织中次生韧皮部所占根径的比例达46%，其薄壁细胞中内含物较丰富，次生木质部中分布有导管和木射线及少量木薄壁组织；在格木木栓层和次生韧皮部中分布有菌丝片段、膨大的菌丝和菌丝团及分生孢子。

Six days after inoculation, the cucumber root tip was slightly swollen and symmetrical root-knots were observed at the meristematic and elongation zones. Giant cells were differentiated by previous cambium cells in the center of the root; 10days after inoculation, symmetrical and secondary root-knots were observed at the root hair and upper zones. Vessels were separated by giant cells, around which protoxylem vessels were observed; l6days after inoculation, hypo-vascular tissue appeared earlier than normal; 20-30 days after inoculation, the vertical arrangement of vessels was disordered, shape was distorted and a new vascular tissue appeared in the cortex.

结果显示：接种后6 d的根尖分生区、伸长区出现膨大、对称的根结，根中心的原形成层细胞分化出巨型细胞；10 d在根毛区及以上部位出现既有对称又有偏于一侧的根结，周围有原生木质部导管出现，根结中巨型细胞阻断了导管；16 d次生维管组织提早出现；20~30 d导管纵向排列无序，形状扭曲，皮层中有新维管组织产生。

The biological polymorphism of Cercospora zeae-maydis was studied systematically in the levels of histology, protein and DNA. The major characters in polymorphism of pathogen were listed as follows:(1) The great differences were seen in shapes and sizes of conidiophores, the growth velocity of mycelium and pigment-productivity of colony among pathogen strains. In addition, an albino strain, a kind of mutant, was casually discovered during isolation of pathogen from diseased plants, which supported strongly our previous prediction that there should be some potential genetic variation in Cercospora zeae-maydis.

本研究在组织学、蛋白质和DNA水平上，系统研究了玉米灰斑病菌的生物学多态性，这种多态性主要表现在以下几个方面：①病菌形态学和培养性状多态性：菌株间存在分生孢子形态、菌丝生长速度、菌落产色素能力等方面的差异，该病菌在自然界存在另一种变异类型——白化菌株，说明灰斑病菌的确存在遗传变异的潜能。

The process of its occurrence: in explants induced by living cells to restore all of its potential, into meristematic cells, then its derivative for the parenchyma cells and the formation of callus.

其发生过程是：外植体中的活细胞经诱导，恢复其潜在的全能性，转变为分生细胞，继而其衍生的细胞分化为薄壁组织而形成愈伤组织。

The plasmalemma of cells within meristematic regions was observed to possess invaginations in cultured callus of Stevia rebaudiana under differentiation.

对在分化条件下的甜菊愈伤组织分生区域细胞的质膜内陷进行了超微结构和酸性磷酸酶细胞化学研究。

The ECSs from embryogenic calli were higher in quality than those from meristematic globules.

香蕉的基因型和品种不同，从胚性愈伤组织或分生小球体建立ECS的可能性不同。

As explants for the establishing of ECSs, meristematic globules underwent a process completely different from embryogenic calli.

从分生小球体起始建立ECS，其发育途径与以胚性愈伤组织的截然不同。

The cells of proembryo had strong division ability, and there were distinct difference in shape and obvious boundary between them/it and the surrounding tissues.

原胚细胞分生能力强，与周围的母体组织之间形态差异显著，界限明显，其下部形成一个类似胚柄的结构。

Orchid can be rapidly propagated by in vitro organogenesis or embryogenesis of orchid meristems.

兰科植物可藉由组织培养分生方式快速繁殖出与母本形质完全一样的苗株。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。