meristem 中文意思是什麼

In this paper the floral ontogeny and the ovary development of rivina humilis l. were observed. the results showed that ( 1 ) the tepal primordia initiated in 2 / 5 spirals. the abaxial one initiated first, then the adaxial one, finally the lateral two initiated nearly simultaneously. the third one initiated on the position near the first tepal, and there is a gap between itself and the second tepal. ( 2 ) the 4 stamineal primordia initiated in one whorl at the same time. ( 3 ) the carpellary primordium initiated from the abaxial side of flower primordium ; the carpellary primordium grew upwards and towards axis after it was formed, therefore an elliptic orifice was formed at the adaxial position of ovary, which was the remainder of the mouth of ovary before the ovary was fused completely. with the ovary maturing, the orifice was narrowed because of the ovary growth, at last fused completely. the gynoecium is composed of a single carpel. ( 4 ) in the series developmental sections of ovary, the ovular primordium was initiated on the adaxial meristem when the mouth of ovary was formed

對數珠珊瑚的花器官發生和子房的發育過程進行了觀察.結果表明: （ 1 ）數珠珊瑚花被呈2 / 5螺旋狀發生，遠軸側的1枚先發生，其次為近軸側的1枚發生，最後側方的2枚花被幾乎同時發生，第3枚花被在靠近第1枚的位置發生，第2枚和第3枚之間有1個空隙; （ 2 ） 4枚雄蕊是同時發生的; （ 3 ）心皮發生於分生組織的遠軸側，心皮原基形成后，向上向軸生長，在子房成熟前在近軸側非正中位形成1個孔，該孔為心皮最終愈合前的殘跡，到子房成熟時，因子房的生長孔被擠壓縮小，在進一步的生長過程中愈合.子房由1枚心皮構成; （ 4 ）從子房發育過程的切片看，該植物的胚珠是在子房發生后不久發生的，子房上的圓孔形成時，從近軸側的分生組織發生胚珠原基，由胚珠原基分化出珠被與珠心

Advances on genetic transformation of cotton shoot apical meristem via gene - gun bombardment

以棉花莖尖分生組織為受體進行基因槍轟擊轉化的研究

Effects of auxins on plantlets regeneration from subcultured tip meristem in sweet potato

生長素類物質對甘薯莖尖分生組織培養成苗的影響

Studies on tip meristem culture rapid propagation and induction of in vitro stolon of manyflower betony stachys floridana schuttl. ex benth

銀條莖尖培養快繁及離體根狀莖的誘導

New necrotic laticifers with cambium - like meristem continue to form in the inner bark and this makes the disease become irreversible

新的壞死乳管和形成層狀分生組織繼續在樹皮內層形成，因而使該病成為不可恢復的。

The activities of the cambium - like meristem present in the early affected trees lead to formation of the deformed bark of the trees in the late stage of the disease

早期感病樹中出現的形成層狀分生組織的活動導致晚期病樹樹皮的變形。

The results showed that the prime symptoms of the tpd include laticifer necrosis and cambium - like meristem formation that occurs around the necrotic laticifer in the inner bark

結果表明該病的基本癥狀是在樹皮內層發生乳管壞死和在壞死的乳管周圍產生形成層狀分生組織。

Initiation of somatic cells stimulated by cytokinin, division of the initiated somatic cells and succeeding shoot meristem development are three key steps in the process

細胞分裂素誘導體細胞啟動、啟動的體細胞進行分裂和由此引發的莖分生組織發育是這一過程中的3個重要步驟。

Cells of the procambium and ground meristem are more vacuolated than those of the protoderm.

原形成層和基本分生組織的細胞比原表皮層細胞更加液泡化。

Ground meristem the central region of the apical meristem from which the ground tissues of pith, cortex, medullary rays, and mesophyll differentiate. in root meristem it is also called periblem

基本分生組織：位於頂端分生組織的中部，髓、皮層、髓射線以及葉肉這些基本組織均是由基本分生組織分化而成。根部分生組織也稱為皮層原。

Signals were strong in the cell periphery of procambium, and longitudinal signals were stronger than lateral ones ; in root ground meristem cytoplasm, concentration in the perinuclear region was stronger than one in the cell periphery. in cell periphery of root ground meristem, distribution of actin mrna was heterogeneous, longitudinal signals were stronger than lateral ones ; in callus meristem cytoplasm, concentration in the perinuclear region was low ;

這表明，從棉花愈傷組織薄壁細胞到鳥巢狀管胞團再到正常苗的過程中肌動蛋白mrna的分佈和濃度都有明顯的變化，而在這里愈傷組織在分化到鳥巢狀管胞團后就不再繼續發育，因而推測，肌動蛋白mrna分佈和濃度可能影響愈傷組織分化出正常的植株。

The epidermis arises from the tunica meristem

表皮來源於分生組織近外方的細胞。

Studies on taro colocasia esculenta meristem tip culture

杏黃兜蘭和硬葉兜蘭的種子試管培養

Research advance in technique of sweet potato meristem tip culture for virus - free

外源激素對甘薯不同品種莖尖培養與植株再生的影響

The cells may begin dividing if another part of the meristem is damaged

但當分生組織細胞受損時，這些細胞可能轉化為分生組織細胞。

The effects of varieties and hormones on sweet potato meristem culture and plantlet regeneration

熱處理結合莖尖培養去除甘薯叢枝病植原體

The establishment of regeneration system of potato plantlets in vitro from potato stem - apex meristem

馬鈴薯莖尖分生組織試管苗再生體系的建立

Protophloem the first - formed primary phloem, differentiated from the procambium in the region just behind the meristem

原生韌皮部：最早形成的初生韌皮部，由位於分生組織中的原形成層分化而來。

7 - 10 days " seedlings after the seeds germinated, the meristem in the stem apex functioned to form true leaf primordium, meanwhile, the vessel elements which differentiated from parenchymatous cells of the middle and upper portion of the cnz connected with the vessel elements from procambium of epcotyl - shoot region

種子萌發7 - 10天，幼苗的莖端分生組織活動形成真葉雛形，此時由子葉節區中、上部薄壁細胞的轉分化形成的導管分子與上胚軸-苗區原形層形成的導管分子發生連接。

We studied development mechanism by the distribution of microfilaments and actin mrna in cotton callus, healtny plants and abnormal plantlets. fitc - phalloidin as fluorescence probe was used to investigate the meristem of the cotton root, abnormal plantlets and callus that was unable to germinate into healthy plants

本研究選取正常棉花的根，已經培養了長時間不能分化出正常植株的棉花愈傷組織和棉花畸形苗為材料，採用石蠟切片，通過fitc -鬼筆環肽對材料微絲熒光染色，結合熒光顯微鏡觀察。