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- suspensor haustorium 胚柄吸器
- These plants develop elaborate haustorial structures from the suspensor. 这些植物从胚柄中发育出精致的吸器组织。
- With embryo sac haustorium in chalazal end,the embryo sac is Endymion type. 胚囊发育类型为英地百合型 ,合点端形成胚囊吸器。
- The basal cells of suspensor developed rapidly, which had haustorial function. 结果表明,胚发育属茄型,其基细胞先行纵裂。
- At the heart-shaped embryo stage , the suspensor was well developed. 心形胚时期,胚柄最为发达。
- The primary chalazal haustorium ramifies around the vascular tissues of the ovule. 初生合点吸器沿着胚珠的维管组织分支。
- The suspensor is thought to function as a channel for the conduction of food materials. 胚柄被认为是作为运输营养物质的通道。
- Tuber-like-organ formatin, haustorium formation and bud formation are key steps of C. tubulosa seedling development. 结论:寄生过程遵循种子萌发长出芽管,接触寄主根形成吸器并侵入寄主根,管花肉苁蓉幼体出现3个阶段。
- The multicellular proembryo and globular embryo possessed uniserial or untidy disposal multi-cellular suspensor. 在多细胞原胚及球形胚期具有单列或不规则排列的多细胞胚柄。
- The haustorium cellularizated from the micropylar end to chalazal end at the later globular stage. 球形胚晚期吸器自珠孔端向合点端逐渐细胞化。
- When the embryo differentiated cotyledons,the haustorium cells gradually degenerated,then disappear. 胚分化出子叶时,胚乳吸器自合点端向珠孔端退化。
- Early division phase embryos may use metabolites provided by the suspensor, persistent and degenerating synergids. 早期分裂时期的胚可以利用胚柄,宿存和退化中的助细胞所提供的代谢物。
- Endosperm formation is nuclear type and the endosperm forms chalazal haustorium . 核型胚乳,合点端具胚乳吸器。
- The nucellar embryo had a suspensor,its development passed through the similiar stages of the zygotic embryo. 珠心胚发育经历与合子胚相同的发育阶段。
- When the haustorium cell began to degenerate,the reaction of ATPase activity on nucleus membrane is markedly reduced. 在开始退化的吸器细胞中,核膜上的ATP酶活性的反应减弱较早,内质网稍晚;
- Proembryo A young plant after fertilization but before differentiation into embryo and suspensor tissue. 原胚:从受精卵分裂形成2细胞胚开始至胚芽和胚柄等器官分化之前的胚。
- From its undersurface a narrow infection hypha or penetration tube pushes through the cell wall or intercellular spaces and develops into a series of hyphae or a HAUSTORIUM. 从下表面的较细的感染性的菌丝可以穿过细胞壁而发育为一系列菌丝。
- During formation of the dikaryotic haustorium, there were collars formed around the neckand tubles in cytoplasm in host cell. (4)在双核吸器形成过程中,寄主细胞可分泌胼胝质和产生与侵染有关的管状结构。
- At the early globular embryo,the chalazal portion of the embryo sac grown into tubular haustorium,which still remained coenocytic. 球形胚早期,胚囊合点端的壁伸长发育成一管状胚乳吸器,进而吸器靠近胚乳本体端膨大为囊状。
- In succession, cell layer of suspensor rapidly grew, elongated and down proembryo was carried away cell wall of archegonial base, then get into corrosion cavity in endosperm. 接着胚柄细胞层迅速生长、伸长,把下面的原胚送出颈卵器基部的细胞壁,进入胚乳中的溶蚀腔。