haustorium是什么意思
2024-01-13 13:50:17
haustorium
n. [植](寄生植物的)吸根
形容词：haustorial 名词复数：haustoria
英英释义
Noun
- a root-like attachment in parasitic plants that penetrates and obtains food from the host
例句
- 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 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。
- 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 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。
- Endosperm formation is nuclear type and the endosperm forms chalazal haustorium . 核型胚乳，合点端具胚乳吸器。