形成孢子

A binucleate spore of a rust fungus , formed in a chainlike series in an aecium .

锈孢子锈菌的双核孢子，在锈孢子器中形成链状系列来源：词友

Strains could inhibit conidium germination, 5 strains made the pathogen grow vegetably and 9 strains inhibited its tube growth.M.grisea produce several swollen cells on the sites of the appressorium differentation and lost the ability to infect onion epidermis treated with the culture supernatant of h23 strain.

结果如下：获得21株对稻瘟病菌附着胞形成具有拮抗作用细菌菌株，其中3株诱导孢子在附着胞分化位点产生囊状物；其中4株抑制孢子萌发；5株使孢子呈营养生长；9株抑制芽管生长。

Following 72 h co-culture, desquamate, sporozoites, trophozoites, meronts, microgametocytes, macrogametocytes, zygote, thin-wall oocyst, and thick-wall oocyst appeared orderly. Between the 60th and 72th hour, many oocysts emerged. Inoculated by the C. parvum -infected cell culture supernatant at the 48th hour, the immunosuppressed mice became infected.

在感染后72 h内，隐孢子虫出现连续发育阶段，包括脱囊、子孢子、裂殖子、裂殖体、滋养体、配子体、合子、薄壁卵囊和厚壁卵囊，在60～72 h内形成卵囊；用感染48 h的细胞培养上清接种于免疫抑制小鼠， 10 d后有隐孢子虫卵囊排出。

Subsequently, the tapetum cell began to disorganize, and it kept the strongest Ca^2＋ fluorescence intensity from microspore to pollen maturity until the tapetum was disappeared completely.

在花药壁组织内Ca^2＋分布也呈现规律性的变化：造孢组织时期，花药壁组织Ca^2＋荧光强度在不同壁层组织中分布均匀；小孢子母细胞时期，药壁中层细胞Ca^2＋荧光最强，绒毡层细胞次之；单核小孢子时期，绒毡层细胞呈解体状态，Ca^2＋荧光最强，并保持到二核花粉时期直至绒毡层完全消失，但此时花药纤维层发育形成，表现出较强的Ca^2＋荧光。

In type Ⅰ, the exospore is smooth and the surface ornamentation, which is reticulate, cristate, echinate or rugate, is formed by the perispore.

结果表明，该科植物的孢子可分为3种类型：（1）孢子球形，三裂缝；周壁较厚，疏松地包在孢子之外；外壁光滑，表面纹饰由周壁形成，呈网状、嵴状、刺状或皱状。

Endogenous cadavarine content in female flower from megaspore mother cell stage to female flower maturation was higher than those in m...

亚精胺和腐胺含量随着大小孢子四分体形成和大孢子核的连续分裂而分别表现下降和上升。

The primary sporogenous cells divided into the second sporogenous cells which would turn into microspore mother cells in a microsporangium. The cytokinesis in meiosis of the microspore mother cells was of modified simultaneous type, forming the decussate, isobilateral or T-shaped tetrads.

初生造孢细胞分裂形成次生造孢细胞，次生造孢细胞再转化为小孢子母细胞，小孢子母细胞减数分裂的胞质分裂为修饰性同时型，四分体排列方式为交叉型、对称型或"T"型，成熟花粉粒二细胞型，开花时散出。

The observation showed that sterile plants and fertile plants in the pollen mother cell stage is not very different, when microspore mother cells of male sterile plants enter meiosis period, it could form normal tetrad cell , tetrad cell is normal in early development stage, In the uninucleate microspore stage , tapetal cells were vacuolization, the microspores were extruded to the middle by tapetal cells.

本研究利用石蜡切片法，结合光学显微镜技术对樱桃萝卜核质互作雄性不育系的不育株和对应保持系可育株的花药发育过程进行细胞形态学观察，观察结果表明：不育株与可育株在花粉母细胞时期差别不大，不育株的花药小孢子母细胞进入减数分裂期后，可以正常的形成四分体，四分体前期发育正常，而在单核小孢子期绒毡层细胞出现液泡化，绒毡层细胞向中间挤压小孢子。

A binucleate spore of a rust fungus , formed in a chainlike series in an aecium .

锈孢子锈菌的双核孢子，在锈孢子器中形成系列来源：词友

Japonica and 1.3 cm of U.pinnatifida which showed heterosis in growth during the temporarily sea cultivaton. The phenotypic character of F_1 juvenile sporophyte of L.japonica♀×U.pinnatifida♂was similar to that of the female parent, namely, L.japonica which generated no rudiments of the pinnate lobations.

海带♀×裙带菜♂杂交组合的受精率为20-33%，在暂养期间F_1幼孢子体达到2.2 cm，大于海带、裙带菜幼孢子体的1.8 cm和1.1 cm，表现出生长优势；F_1幼孢子体表现出母本海带的性状，无裂叶缺刻雏形的形成。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。