子葉管 的英文怎麼說
中文拼音 [ziyèguǎn]
子葉管
英文
cotyledon tube-
The primary structures, the genesis and the structure formed of the primary vascular system and the structural change in the process of cotyledonary senescence of the seedlings of antirrhinum majus and other angiosperms were studied. the progress had been aquired in the aspects as follows
本論文對金魚草等幾種被子植物幼苗的初生結構、幼苗發育早期初生維管系統的發生和建成后初生維管系統的結構以及子葉衰老過程中的結構變化作了較為全面的研究,在以下幾個方面取得了一定的進展: 14. the studies focused on the cnz of dianthus barbatus and saponaria offlcinalis seedlings applied two different vascular cylinder types, even through they both were " " - shape exarch and diarch haplostele, their patterns of protoxylem and m
此外,在商陸科的美洲商陸的子葉節區下部發現了一種具有雙大括號狀( 「 { } 」 )的維管柱類型。A clearly defined endodermis is seen in all roots and in the stems of the non seed - bearing vascular plants and some dicotyledons
所有不產生種子的維管植物和一些雙子葉植物的莖中都可以清楚的顯示出這一結構。Monocotyledons and dicotyledons are so termed because they normally conatin one and two cotyledons respectively although there are exceptions
盡管有例外的情況出現,我們通常還是根據子葉的數目為一片還是兩片而把植物分成單子葉植物和雙子葉植物。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。Odour drawn out of fallen leaves by the pale filtering sunlight soaked his nostrils.
透進林子里來的淡淡日光把落葉的氣味蒸發出來,輸進他的鼻管。In vascular plants the diploid sporophyte is the dominant phase and in the ferns, for example, the gametophyte is a small prothallus
在維管植物(蕨類)中二倍體的孢子體占生活史的主要部分,配子體僅為原葉體。Studies on taro colocasia esculenta meristem tip culture
杏黃兜蘭和硬葉兜蘭的種子試管培養1. the study of comparative anatomy on the structure of seedlings of acorus tatarinowii and zantedeschia aethiopica suggested a. tatarinowii was more primitive " x " - shape mesarch haplostele, while z aethiopica atactostele ; the actinostele of root of the former was di - to octoarch, but the latter only di - to pentarch ; the pattern of endothecial wall thickening in a. tatarinowii was characteristic of five - face thickened and contained passage cell, while z. aethiopica four - faced thickened and known as casparian strip
通過對石菖蒲和馬蹄蓮幼苗結構的比較解剖學研究,發現石菖蒲幼苗的子葉節區下部為原始的中始式二原型的「工」字形的單中柱,而馬蹄蓮為散生中柱;石菖蒲根的維管柱為2 - 8原型星狀中柱,馬蹄蓮為2 - 5原型星狀中柱。石菖蒲根的內皮層細胞壁為馬蹄形五面加厚;而馬蹄蓮為凱氏帶四面加厚。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。It spend 20 - 21 months from spermatogonial proliferation to spermiation. during this period, sperm live through the winter by storing in lumens at the end of testicular lobular or spermatic duct
在此期間,成熟精子貯存在精巢小葉末端的管腔內或在輸精管內越冬,貯存期為7 - 9個月。Examples include male and female plants in dioecious species, aerial and submerged leaves, alternation of gametophyte and sporophyte stages of a life cycle, and mesophyll and bundle - sheath chloroplasts
例如在雌雄異株物種中的雌性植物和雄性植物,氣生的和被水浸沒的葉片,生活史中的配子體與孢子體的交替,葉肉和維管束鞘葉綠體等。In gmnr, so far a total of 1030 vascular species in 536 genera of 169 families have been listed, 141families, 486 genera, 949 species ( including intermination taxa, similarity hereinafter ) of the spermatophyta, including 4 families, 4 genera, and 7 species of the gymnospermae, and 137 families, 482 genera, 942 species of the angiospermae - - - - - - the dicotyledonae 117 families, 374 genera, 755species, and the monocotyledonae 20 families, 108 genera, 187 species
本文是對廣東省古兜山自然保護區種子植物區系的組成與基本特點的研究,現知古兜山共有野生維管植物169科536屬1030種(蕨類植物28科50屬81種,裸子植物4科4屬7種,雙子葉植物117科374屬755種,單子葉植物20科108屬187種) ,具有部分古老孓遺種,以木本植物為主,其次為草本,藤本不多。The pap gene was also transformed into wheat by pollen tube pathway - mediated and 320 grains of transgenic wheat was harvested. the seedlings of the seeds were inoculated with the gav isolate of barley yellow dwarf virus ( bydv ) by schizaphis graminum ( rondani ) and the results revealed that 33 wheat seedlings did not produce the symptom or the symptom was very mild
通過花粉管通道法將pap基因導入小麥,收獲了轉基因小麥種子320粒,將其播種,返青后,直接用麥二叉蚜將大麥黃矮病毒( bydv ) gav株系接種到幼苗葉片上,觀察發病情況。According to the statistics of main journals about late 50 years in our country, our phytologists pay attention to the comparative anatomy studies of the carpoplyte, such as the structure of vascular tissue, leaf and leaf epidermis, the structure and development of flower, the characteristic of seed and seed coat, the secretory tissue, some primitive carpophytes and so on
根據近50年國內主要期刊統計,我國植物學者重點在種子植物的維管組織結構、葉及其表皮結構、花的結構和發育、種子及種皮特徵、分泌組織以及一些原始種子植物等方面開展了比較解剖研究,為一些植物科、屬的系統分類提供了解剖學依據。Objective to study the effect of panax quinquefolius saponin, an extraction from stem and leaf of american ginseng, on vascular regeneration in infarcted area, and expressions of vascular endothelial growth factor vegf and basic fibroblast growth.
目的觀察西洋參莖葉總皂苷panax quinquefolius saponin , pqs對急性心肌梗死ami大鼠缺血心肌血管內皮細胞生長因子vegf堿性成纖維細胞生長因子bfgf表達及梗死區血管新生的作用。It stretches from the leaf base to the vascular ring in the stem axis
它由葉子基部的維管束延伸至莖軸的維管束。The carpel is homologous with the megasporophylls of certain spore - bearing vascular plants ( pteridophytes ) and the ovuliferous scales of gymnosperms
心皮和能產生孢子的維管植物(羊齒類)還有具胚珠的裸子植物的大孢子葉是同源的。The results showed that the vessel element did n ' t differentiate after the seeds had imbibied for 6 hours ; 6 hours after seeds germination, two loci ? ne below the middle portion of the cotyledon and the other in the lower portion of cotyledon - node zone ( cnz ) initiated the differentiation of vessel element simultaneously, then elongated towards the cotyledonary apex and hypocotyl - root region respectively ; eventually the two promoter loci began to interconnect through vessel elements
結果表明:種子吸漲6h ,未有導管分子的分化;種子萌發后6小時期間,自子葉中部偏下方和子葉節區下部的兩個位點同時啟動導管分子的分化,並分別向子葉葉尖和下胚軸-根的方向延伸;爾后,在發生兩個啟動位點之間發生導管分子的連接。Panax quinquefolius saponin myocardial infarction vascular endothelial growth factor basic fibroblast growth factor
西洋參莖葉總皂苷心肌梗死血管內皮細胞生長因子堿性成纖維細胞生長因子血管新生分享友人