东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2014年
10期
24-27
,共4页
唐晓杰%程广有%张骁%王振华
唐曉傑%程廣有%張驍%王振華
당효걸%정엄유%장효%왕진화
东北红豆杉%配子形成%胚胎发育
東北紅豆杉%配子形成%胚胎髮育
동북홍두삼%배자형성%배태발육
Taxus cuspidate Sieb et Zucc%Gamate formation%Embryo development
利用显微技术观察了东北红豆杉雌、雄配子形成和胚胎发育过程。结果表明:直生胚珠3月份恢复发育,5月中旬大孢子母细胞形成,下旬减数分裂,6月中、下旬雌配子体形成。3月中旬花粉母细胞减数分裂,经过1个月左右发育为成熟的单核花粉,4月底至5月初散粉。传粉后约2个月受精,受精后的原胚经历球形胚、卵形胚、柳叶形胚、棒槌形胚,进而发育成具有胚芽、胚根、胚轴和子叶的胚体。
利用顯微技術觀察瞭東北紅豆杉雌、雄配子形成和胚胎髮育過程。結果錶明:直生胚珠3月份恢複髮育,5月中旬大孢子母細胞形成,下旬減數分裂,6月中、下旬雌配子體形成。3月中旬花粉母細胞減數分裂,經過1箇月左右髮育為成熟的單覈花粉,4月底至5月初散粉。傳粉後約2箇月受精,受精後的原胚經歷毬形胚、卵形胚、柳葉形胚、棒槌形胚,進而髮育成具有胚芽、胚根、胚軸和子葉的胚體。
이용현미기술관찰료동북홍두삼자、웅배자형성화배태발육과정。결과표명:직생배주3월빈회복발육,5월중순대포자모세포형성,하순감수분렬,6월중、하순자배자체형성。3월중순화분모세포감수분렬,경과1개월좌우발육위성숙적단핵화분,4월저지5월초산분。전분후약2개월수정,수정후적원배경력구형배、란형배、류협형배、봉퇴형배,진이발육성구유배아、배근、배축화자협적배체。
We observed gamate formation and embryo development of Taxus cuspidata Sieb et Zucc under microtechnique .The orthotropous ovule returned to develop in March .Megaspore mother cell was formatted in middle May and began the meiosis in late May.Female gamete was formatted from mid-June to late June.Pollen was formatted through one month from pollen mother cell which began meiosis in mid-March, and pollination was from late April to early May .Embryo was formatted from proembryo through globular embryo , egg embryo , willow embryo and wooden club embryo , respectively .