海棠因 的英文怎麼說
中文拼音 [hǎitángyīn]
海棠因
英文
hyperoside-
Segregation ratios of most of markers fit expected ratios. this result showed that most of the region of m. xiaojinesis ' s and m. baccata ' s genome segregated normally
絕大多數的標記（ 1048 ，占總數的93 . 1 ）的分離比例適合各自分離比的期望值，表明小金海棠和山定子基因組的大部分區域是正常分離的。In some cases the observed segregation ratios even allowed us to clearly determine that m. xiaojinesis is a autotetraploid plants, at least is a isosyndetic allotetraploid. these were the cases of 32 m. xiaojinesis - specific markers and 50 markers present in both parents, which fit 5 : 1 and 11 : 1 ratio respectively. since these cases happened were owing to m. xiaojinesis ' s duplex loci
50個雙親共有標記和32個小金海棠特有標記分別適合11 ： 1和5 ： 1的分離系數，由這兩個系數可以推測，小金海棠可能是同源四倍體，至少是同源異源四倍體，因這兩個系數都表明其產生是源於小金海棠的雙式位點。705bp dna fragment of mxnrampl gene and full cdna of mxlrtl gene which were related to resist iron stress were cloned by using malus xiaojinensis cheng et jiang - the first iron - efficient genotype in the genus malus in the world as material. ( 1 ) using fragment of nramp gene from wheat and fe ( ll ) - transporter gene fragment of maize ( zmlrt ~ ) as probes, we analysed these genes by blotting hybridization technique in malus xiaojinensis cheng et jiang
本實驗以中國農業大學園藝植物研究所篩選到的一個蘋果鐵高效基因型? ?小金海棠（ malusxiaojinensischengetjiang ）為試材，分別克隆了小金海棠的抗缺鐵相關基因mxnramp1基因的752bp基因組dna片段和fe （ ） -轉運蛋白基因（ mxirt1 ）的cdna全長，為深入探討小金海棠抗缺鐵的分子機理奠定了基礎。The purposes of this project were to further analyze the characteristics of their iron efficiency under iron stress, to study the physiological and molecular mechanisms of iron efficiency under iron deficiency in c. junos and m. xiaojinensis, and to analyze the spatial expression model of fcr ( ferric chelate reductase ) gene under iron stress with the hope to cast a new light on iron stress tolerance on the molecular level, to lay solid foundations for cloning fcr gene in c. junos and m. xiaojinensis, and to provide some basic data for creating new rootstocks with excellent complex characters and iron efficiency
本研究通過進一步分析香橙和小金海棠的耐缺鐵特性，研究它們耐缺鐵的生理原因和分子基礎，並通過分析三價鐵螯合物還原酶基因的空間表達模式，從分子水平上去探討植物耐缺鐵的原因，為從香橙和小金海棠中克隆三價鐵螯合物還原酶基因奠定基礎，並為人工創造耐缺鐵的果樹砧木提供基礎研究數據。The results indicated that all streams in guangzhou have been polluted by heavy metals in different degree. chigang stream, haizhu stream and shangxia stream are the most serious. industry activities are responsible for the pollution mainly
表明廣州市河涌已受到不同程度的重金屬污染，受污染最嚴重的是赤崗涌、海珠涌和棠下涌，工業活動是造成污染的主要原因。Twenty - six species in the genus begonia were recorded for different purposes as medicine, food, beverage and pig feed in china ( ornamental uses excluded ). among these twenty - six species recorded for different uses, twenty - four species are used as medicine, eight species are used as food ( vegetable ) or beverage, and five species are used as pig feed. three species are commonly used for making beverage in the areas of their natural distribution. nine species have multiple uses, either for medicine, for food, beverage or pig feed. our study also indicated that some species are becoming rare and endangered owning to over collection and other factors
秋海棠屬植物除了具有較高的觀賞價值外，在中國還作為藥用、食用、飲料和飼料等被利用.本文應用民族植物學研究方法，通過野外調查、文獻和標本收集整理和研究，共記載了中國產26種秋海棠屬植物被作為藥用、食用、飲料和飼料加以利用.在所記載的26種國產秋海棠屬植物中，有24種作藥用， 8種作食用（蔬菜）或飲料， 5種作飼料. 3種作飲料的種類在其自然分佈地被廣泛利用. 9種秋海棠作為多種用途加以利用，其中8種既被作為藥用、食用和飲料，也被作為飼料加以利用.本研究還表明，國產秋海棠屬植物中，有些種類由於過度採集利用或其它因素已變得稀有或瀕危.由此提出，合理開發利用和有效保護應成為今後中國秋海棠屬植物研究的重要內容The study was undertaken to isolate fe ( ii ) - transporter cdna and related binding protein cdna under fe - deficiency stress from a fe - deficiency root cdna expression library of malus xiaojinensis by screening library using maize fe ( ii ) - transporter cdna and wheat tamre - bp cdna as a probe. the main results as follows : 1 out of approximately 120000 plaques, four positive cdna clones encoding fe ( ii ) - transporter proteins, designated pftl -
本試驗以蘋果屬小金海棠（ malusxiaojinensischengetjiang ）為試材，利用玉米fe （ ）轉運蛋白基因片段以及小麥金屬反應元件結合蛋白tamre - bpcdna為探針，篩選小金海棠缺鐵根cdna表達文庫，目的在於克隆蘋果鐵高效基因型小金海棠的fe （ ）轉運蛋白基因以及與缺鐵脅迫相關的結合蛋白基因。C. junos and m. xiaojinensis were found to be tolerant to iron chlorosis and were able to acquire iron from soils of low iron availability in previous field experiments, but the physiological and molecular mechanisms for their iron efficiency have remained unclear
基於此，本研究選擇了兩種果樹砧木，小金海棠和香橙因為它們在初步的田間鑒定中表現耐缺鐵，但它們耐缺鐵的生理及分子機制並不清楚。For example, concerning the subjects of researches we ' ve ignored grently the connection between the basic researches and application study. in - depth researches on the rare gene materials such as mains toringoides are badly needed. the researches on genetic materials conservation, identification and utilization of the apple resources using the modern molecular technology are almost a blank
對于象變葉海棠等珍貴的蘋果基因資源，由於缺乏資金投入，研究有待進一步系統和深入；其次，資源研究的技術和手段不夠先進，傳統的田間保存技術也由於資金短缺和條件限制，現保存資源的損失與日俱增，許多珍貴的基因資源得而復失。( 3 ) 490bp cdna fragment of fe ( ii ) - transporter gene mxlrtl was cloned by using common pcr method from iron - stressed root cdna library of malus xiaojinensis cheng et jiang with primers designed according to the conserved domain sequences of plant irt gene families. then we cloned the full cdna of mxlrtl gene by race method from this library with primers designed according to the sequence of 490bp cdna fragment
（ 3 ）根據植物irt基因家族的功能保守區序列設計引物，首先通過常規pcr法從缺鐵脅迫處理的小金海棠根系cdna文庫中克隆了fe （ ） -轉運蛋白基因mxirt1的490bp的片段，然後根據測序結果設計引物，通過race法從該cdna文庫中克隆了mxirt1基因的cdna全長。This suggests that mxmybl represents a single copy gene in the genome of mains xiaojinensis. 8 expression pattern was analysed by northern blot and rt - pcr. the results showed that mxmybl mrna was expressed in root and leaf and it was strengthened expression by the treatment of fe - deficiency for three days in roots especially
8 、 northcm雜交結合rtpcr的方法對mxmybl基因在小金海棠中的表達模式進行了分析，結果如下： mxmyb在根系和葉片中均表達，缺鐵處理可以加強mxmybl在根系中的表達，尤其是缺鐵3天的根系表達量最強。2 sequences were analysed and compared in genbank : ptfl is 494bp and ptf2 is 763bp in longth, the deduced proteins consist of 88 and 172 amino acids respectively, these cdna - clones encode the same gene - fe ( ii ) - transporter. 3 southern blotting showed that fe ( ii ) - transporter was a single copy in malus xiaojinensis genome and it was also existed in malus baccata and malus zumi
2 、根據測序的結果，將所得序列在genbank中進行同源性比較，結果如下： ptf1長為494bp ， ptf2長為763bp ，分別編碼88個和172個氨基酸，屬于小金海棠fe （ ）轉運蛋白基因的兩個不同長度的基因片段，是同一個基因。The mass of it is predicted to be 39. 2kd and its pi is 8. 07. ( 4 ) we constructed the yeast expression vector pdbleu - mxlrtl successfully. now we are studying the role and subcellular location of mxlrtl gene
（ 4 ）成功地構建了小金海棠fe （ ） -轉運蛋白基因mxirt1的酵母表達載體pdb ~ （ 1eu ） ? mxirt1 ，並正在進行該基因的確切功能和亞細胞定位研究。分享友人