胚葉 的英文怎麼說
中文拼音 [pēiyè]-
The cotyledons of the mature embryo are either green, yellow or chalky yellow.
成熟胚的子葉是綠色,黃色或淺黃色。It has been known that the self-sterility of conifers results from embryo collapse after self-fertilization.
業已知道,針葉樹自花不育是由於自花受精后胚凋萎。The embryo consists of two large fleshy cotyledons.
胚有兩片大而肉質的子葉。During development of the seedling, the hypocotyl forms the lower portion of the stem from the radicle up to the cotyledons.
在幼苗發育期間,下胚軸從胚根到子葉的莖的下部形成。Embryo culture and plant regeneration from cotyledons in interspecies hybrids of cherry
櫻桃種間雜交種胚培養及子葉植株再生Cytyledons and future stalk called the hypocotyl elongate.
子葉和未來稱為下胚軸的主軸延長。Most grass embryos have a flap-like structure known as the epiblast.
大多數禾本科胚有一片瓣狀結構通常稱為外胚葉。According to the space - tim e maturation during the development of the vessel elements in primary vascular system : the vessel elememts of the cotyledons and the lower portion of cnz formed firstly, then downward hypocotyl - root zone, at length, the vessel elememts of the upper and middle portion of cnz and epicotyl - shoot region connected with each other, the result uphold the seedling partition model that divides seedling into cnz, hypocotyl - root region and epicotyl - shoot region
根據金魚草幼苗初生維管系統導管分子發育的時空性,即子葉和子葉節區下部導管分子先形成,然後向下形成下胚軸-根區的導管分子,最後子葉節區中、上部與上胚軸-苗區的導管分子再發生連接,據此支持將幼苗分為子葉節區、下胚軸-根區和上胚軸-苗區的幼苗分區模型。The highest vt and p valt in true leaf were accompanied two hybridizable polypeptides of aox protein, 35kd and 38kd respectively. the next was cotyledon vt and p valt with only one 38kd hybridizable polypeptide of aox protein. hypocotyl vt and p valt were the lowest and its immunobloting band was similar to that of cotyledon, but the expressive amount of 38kd protein was less than that of cotyledon
綠豆幼苗不同器官的有關呼吸參數測定結果與aox表達的western分析基本一致:真葉的v _ t特別是v _ ( alt )最高,它也具有35kd和38kd的aox的雜交多肽;其次是子葉的v _ t和v _ ( alt ) ,且在子葉中,只見一條分子量為38kd的aox多肽;下胚軸的v _ t和v _ ( alt )都最低, western雜交顯示也只有一條分子量為38kd的多肽,而且表達量也較少。Cotyledon and hypocotyl ' s rate and quamity are the most among these explams, and callus can be obtained in 10 days by cotyledon and hypocotyl. reversely it is difficult to indue callus with root, and the callus from root is lnde and easy to become browning. the calius obtained from leaf grows very slow and does not become browning uniill in 2 or 3 months
銀杏的不同器官和組織都能夠誘導出愈傷組織來,其中,子葉和胚軸10d左右全部愈傷化,誘導速度和誘導率均最高,根則很難誘導,愈傷組織很少,褐化很快;葉片誘導的愈傷組織,生長慢,褐化也慢,在培養基上保持兩三個月而不褐化;胚乳的誘導時間也較長,需要30d左右。Using the young seedlings of wild type ( wt ) and four mutants ( phya, phyb, phyaphyb and hy4 ) of arabidopsis thaliana as plant materials, the effects of light quality and kinetin ( kt ) on some photomorphogenesis responses such as cotyledon enlargement, hypocotyl growth inhibition, accumulation of chlorophyll and anthocyanin were investigated in the present study. photoreceptor functions and interaction of light and kt in the responses was examined and discussed
本文以擬南芥( arabidopsisthaliana )野生型( wt )和四種光突變體phya 、 phyb 、 phyaphyb和砂hy4為材料研究不同光質與細胞分裂素( kt )對幼苗子葉擴大、下胚軸伸長、葉綠素和花色素苷積累的影響,分析光受體參與的反應以及探討光與kt在調節各種反應中的相互關系。The neurofibromas are multiple benign neoplasms of the peripheral nervous system, arising from mesodermally-derived schwann cells.
神經纖維瘤是外圍神經系統的多發良性腫瘤,由中胚葉的雪氏細胞發生。The methods of classical classification, integrating the study on seed morphology and leave epidemics morphology, along with phytomorphology, phytotomy, phytoembryology, palynology, phytocytotaxonomy, phytochemistry and molecular systcmatics, were used to revise and complete the former taxonomic system
以經典植物分類學方法為基礎,結合種子形態學和葉表皮形態學的實驗研究,參考植物形態學、植物解剖學、植物胚胎學、孢粉學、植物細胞分類學、植物化學和分子系統學等方面的資料,對前人的五味子屬分類系統進行修訂和補充。Their differences are based on many aspects which include characteristics of morphology, anatomy and epidermis of leaf, types of tapetum in anther walls, patterns of endothecial thickenings, and ways of development of endosperms, presence or absence of perisperm, components of photochemistry, and sequences of rbcl
菖蒲屬與天南星科其它屬在葉的形態、結構、表面特徵,花藥絨氈層類型,藥室內壁增厚的特點,胚乳的發育方式,外胚乳的有無,植物化學成分, rbcl基因序列等多方面存在著顯著的差異。These include phototropism, light - driven chloroplast movements and stomatal movements. the phot i gene of arabidopsis encodes an autophosphosphorylating protein kinase that functions as a photoreceptor for phototropism in response to low - intensity bl. up to now
在高等植物中,藍光調控多個重要生理反應過程,其中包括下胚軸的向光反應、葉綠體在光下的重新分佈和氣孔的開放等。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。For example, in the development of the plant embryo from the zygote, one end becomes the radicle, the other gives rise to cotyledons
例如植物由合子到胚的發育,一端形成胚根,另一端成為子葉。Cotyledon ( seed leaf ) the first leaf of the embryo of seed plants, which is usually simpler in structure than later - formed leaves
子葉:種子植物胚胎的第一片葉,在結構上通常比后來形成的葉簡單。Now it has been one of the most important aquatic products in the freshwater cultivation. however, this prawn ca n ' t survive at a water temperature lower than 14c, which has seriously limited its cultivation expanding. in order to obta in a new breed of this prawn with increased cold - resistance, we investigated the cloning of a synthetic gene ( sbwafp ) based on the primary sequence of the mature spruce budworm ( choristoneura fumiferana ) antifreeze protein ( sbwafp ) and the integration of sbwafp into the embryo genomes of giant freshwater prawn by spermatophore - microinjection ( smi ), a sperm - mediated gene transfer technique
本研究的特色和創新之處在於,針對羅氏沼蝦不耐低溫,但體型相對較大,精莢明顯的特點,首次將目前已知具有最強抗凍活性的雲杉卷葉蛾( sprucebudworm , choristoneurafumiferana )抗凍蛋白( sbwafp )基因( sbwafp ) ,通過精子介導的轉基因技術整合到羅氏沼蝦的胚胎中,以期培育出耐低溫的羅氏沼蝦新品系。With the increase of substrate salinity, the accumulated sodium and chloride increased. as a result, all tissues had considerablly lower osmotic potentials than that of the solution on which they were grown at 60 day after planting. changes in length, dry weight, water content, ion concentrations, osomotic potential, ion content of hypocotyls during culture indicated that viviparous hypocotyls not only afforded nutrition for seedling growth, but also reserved ions, thus charged the balance of ion concentration and osmotic potential of the seedling
鹽脅迫下幼苗單株葉面積下降的程度大於光合速率的降低,葉面積的減小是導致減產的主要原因;木欖幼苗各組分中的離子濃度以及含量隨栽培時間而變化;栽培初期剛萌根時,幼苗原胚軸中的離子滲漏到培養液中;此後隨著根系的發育以及芽的生長,幼苗轉為從培養液中吸收離子,並以吸收na 、 cl離子為主。分享友人