The polar and egg nuclei of the female gametophyte are genetically identical. 雌配子体中的极核和卵核遗传上是同一的。
Rhizoid A unicellular rootlike structure found in certain algae and in the gametophyte generation of the bryophytes and some ferns. 假根:在一些藻类、苔藓植物和裸子植物配子体中存在的由单个细胞形成的类似根的结构。
Cytological Studies on the Meiosis and Male Gametophyte Development of Dioscorea parviflora 小花盾叶薯蓣减数分裂与雄配子发育细胞学观察
The polar and egg nuclei of the female gametophyte are genetically identical. A copy of the decision of approval or disapproval shall be sent to the CIRC at the same time. 雌配子体中的极核和卵核遗传上是同一的。核准或者不予核准的决定同时抄送中国保监会。
Female gametophyte formation can be divided into two consecutive processes, namely, the occurrence and female gametophyte spores occurred. 雌配子体的形成可以划分为两个连续的过程,即孢子发生和雌配子体发生。
Study on Gametophyte Development and Rapid Propagation of Lygodium scandens 小叶海金沙配子体发育和快速繁殖研究
Microsporogenesis and Male Gametophyte Development of Juniperus rigida 杜松小孢子的发生和雄配子体的发育
The gametophyte is derived from the product of a reduction division in the megaspore mother cell. 该配子体是由大孢子母细胞进行减数分裂而来。
The megasporogenesis and microsporogenesis and the development of their female and male gametophyte are partially abnormal. 在凹叶厚朴大、小孢子发生和雌、雄配子体发育过程中存在部分败育现象。
Microsporogenesis and Development of Male Gametophyte in Caryopteris mongholica 蒙古莸小孢子发生和雄配子体发育的研究
Studies on Gametophyte Development and Spore Propagation of Nephrolepis auriculata and N. falcata 肾蕨和镰叶肾蕨配子体发育及孢子繁殖研究
The gametophyte and infant sporophyte morphological development of S.grevilleoides represented very different features on different culture substrata. 不同基质上中国蕨配子体和幼孢子体生长发育存在差异,尤其是心形原叶体的形态差别明显;
Cytological Observation on Megasporogenesis and Female Gametophyte Development of Lilium dauricum Ker-Gawler 毛百合大孢子发生与雌配子体发育的细胞学观察
Effects of Different Disinfected Seawaters on the Growth and Development of Kelp Gametophyte 海水不同消毒方式对海带配子体克隆生长发育的影响
The female gametophyte is reduced, but larger than in angiosperms; it is not autotrophic. 裸子植物的雌配子体简化,但较被子植物体的体积大,不能自养。
Angiosperm female and male gametophyte formation is the key to the process of generational one. 被子植物雌、雄配子体的形成是世代交替的关键过程之一。
Spore germination was of Vittaria-type and gametophyte exhibited Adiantum-type development. 孢子萌发类型为书带蕨型,原叶体发育为铁线蕨型;
The sporogonium is parasitic on the gametophyte generation. 孢子体是寄生在配子体上的。
Anatomic Study on Microsporogenesis and Male Gametophyte Development of Lilium dauricum 毛百合小孢子发生和雄配子体发育过程的解剖学研究
The concept of an alternation of generations can be extended to the flowering plants, in which the embryo sac and pollen represent the much reduced famale and male gametophyte generations respectively. 这个概念也可以运用在有花植物上,由胚囊和花粉各自表达雌雄配子体世代。
Protonema the green, filamentous growth that arises from spore germination in liverworts and mosses and eventually gives rise to a mature gametophyte. 由叶苔或苔藓的孢子萌芽发展而成的绿色丝状生长物,最终发展成配子体。
Microsporogenesis and Development of Male Gametophyte of Euphorbia fischeriana 狼毒大戟的小孢子发生与雄配子体发育
The formation of male gametes includes germ cell and vegetative cell differentiation and the occurrence of male gametophyte. 雄配子的形成则包括生殖细胞和营养细胞的分化,以及雄配子体的发生。
Studies on Gametophyte Development and Spore Propagation of Aleuritopteris argentea 银粉背蕨的配子体发育及孢子繁殖技术的研究
The application of gametophyte clone technology injects new vigor into the study of kelp breeding and seed-rearing. 配子体克隆技术的应用,给海带的育苗育种研究注入了新的活力。
There is abortive phenomenon during the microsporogenesis and development of male gametophyte, with empty pollen grains appearing. 小孢子发育及雄配子体形成过程中有败育现象,产生空粒花粉粒。
During male gametophyte development, evident change occurred in the plastids of the vegetative cytoplasm. 在雄配子体发育过程中,营养细胞中的质体发生明显的变化。
It is also feasible to use liquid medium in the study of the development of gametophyte. 液体培养基和混合土在研究蕨类植物配子体发育时同样具有可行性。