The diverse types of tracheary elements and perforation plates in secondary xylem of A. asiatica show that previous knowledge about the tracheary elements and perforation plates in secondary xylem of A. asiatica is not complete and thus any inferences about the aboriginality and evolution of a taxon made depending on these traits are not reliable.

根據(jù)類葉升麻次生木質(zhì)部中多變的管狀分子類型，認(rèn)為以往積累的有關(guān)毛茛科植物管狀分子類型及導(dǎo)管穿孔板類型是不全面的成年人在线免费视频网站，因此以該性狀為參考作出的有關(guān)某一個(gè)類群的原始性和進(jìn)化性的推論也是不可靠的亚洲日韩在线综合一区视频。

The comparison of contents of carbohydrate and hormone in cucumber roots,the root dry weight,soluble sugar content,glucose content,sucrose content,fructose content were higher,but starch contents werelower,and the contents of ZT,GA and IAA in xylem sap and roots were higher in G1 treatment,but ABA content was lower.However,the root dry weight significantly decreased in non-ventilation treatment(F1),and starch content,soluble sugar content,glucose content,fructose content were the trend of the dropping after the first rising, and sucrose content was lower,and the contents of ZT,GA and IAA in xylem sap and roots were lower,but ABA content was higher.

不同處理黃瓜根系碳水化合物含量和激素含量比較發(fā)現(xiàn)超碰人妻A片免费插放丶观看，G1通氣處理根系的干重人人插日日射、總可溶性糖五月激情婷婷综合免费视频、葡萄糖、蔗糖和果糖含量均較高小草一级黄色网站，淀粉含量較低中文人成在线视频，根系和傷流液中ZT、GA_3和IAA含量均較高色色色爽爽爽，ABA含量較低黃片www.；而非通氣處理(F1處理)與對(duì)照相比根系干重顯著降低，根系內(nèi)淀粉黄网站色成年大片大免费、總可溶性糖女人18毛片水多在线视频一区、葡萄糖以及果糖含量均呈先升高后降低的趨勢(shì)，而蔗糖含量較低欧美日韩www.59要艹；根系和傷流液中ZT又硬又粗又长一级A片、GA_3和IAA含量均較低，ABA含量較高欧美性爱,激情性交网。

The primary cambium is found in the stem and root between the phloem and xylem cells, and by division gives rise to the secondary phloem and xylem in woody dicotyledonous plants.

它縱貫于根www.αeαe.28.com欧美黄色片，莖等器官的木質(zhì)部和韌皮部之間国产伊甸园精品视频，是具有分生能力的組織怡春院av。通過形成層的分裂可以在木本的雙子葉植物中形成次生木質(zhì)部和次生韌皮部。

It is excreted from the dracaena plant's xylem after the xylem was injured by the outside force or intruded by the epiphyte, so it gains the recognition of the holy medicine on activating blood circulation.

血竭為一種傳統(tǒng)名貴中藥在线观看国内精品，它是龍血樹屬植物的木質(zhì)部在受外力損傷或遭真菌侵入后分泌的紅色樹脂在线日韩免费av，被稱為"龍血"，內(nèi)服具有活血化淤欧美亚洲人成网站在线观看刚交2、止痛等作用污污视频免费在线18，外用具有生肌、止血不卡a级片、斂瘡的功效国产精品更新在线观看，有"活血之圣藥"的美譽(yù)。

The results showed that POD activity increased at first and then decreased in the skin and flesh of root. The peak occurred at 40 d and 60 d in the skin and flesh, respectively. POD activity in the skin was higher than that in the flesh at 30 d and then contrary results were observed. The higher POD activity was, the more POD isoenzyme was. The pattern of POD isoenzymes was different between skin and flesh at different vegetative growth stages. POD isoenzymes in the skin were composed of five monomers and four dimers while five dimers or two monomers, two dimers and one tetramer in the flesh. POD isoenzymes in the root were mainly acidic. POD localized mainly in the cell walls of periderm, cambium, xylem ray, xylem vessels and primary xylem.

結(jié)果顯示人人人人操人人操，心里美蘿卜營養(yǎng)生長期肉質(zhì)根的皮和肉中POD活性均先升高后降低国产精品综合色区日韩，分別在播種后第40 d和60 d出現(xiàn)峰值，30 d時(shí)皮中POD活性高于肉国产熟女网站，之后則相反国产一区鲁鲁在线视频免费播放，酶活性最高時(shí)同工酶數(shù)目也最多老牛影视无码av一区，不同時(shí)期，皮和肉中同工酶種類不同一级黄色视频。；皮中POD同工酶由5個(gè)單體和4個(gè)二聚體組成国产乱子精品的A片视频，而肉中由5個(gè)二聚體或2個(gè)單體、2個(gè)二聚體和1個(gè)四聚體組成经典自拍视频欧美日韩在线观看网站，均以酸性同工酶為主1024在线视频一区二区精99；組化定位顯示POD主要分布在肉質(zhì)根的周皮、形成層初高中生黄福利网站、木射線国产在线A级视频、木質(zhì)部導(dǎo)管和肉的初生木質(zhì)部等的細(xì)胞壁附近。

As the plants grew for a longer time the cells in the phellem of the taproots become smaller in size and closer in arrangement and calcium oxalate crystal declined in quantity in the phelloderm of the taproots all the taproots had three secretory canals but on average the calibers of the canals gradually become smaller the parenchyma cracks in outer phloem and the xylem part near the root center gradually increased in size ,and the area ratios of phloem to xylem continuously decreased the vessel and vessel-layer numbers in secondary xylem of the transplanted .

不同生長年份的移山參主根結(jié)構(gòu)具有一定差異：隨生長年份的增長H无码精品动漫在线观看,免费A级毛片无码，木栓層細(xì)胞體積變小欧美18性欧美在线，排列趨于緊密；栓內(nèi)層草酸鈣結(jié)晶越來越少精品人妻色导航；分泌道均為3輪亚洲中文久久精品无码性色av，但平均口徑逐漸減小欧美一级中文视频在线观看；韌皮部外側(cè)和木質(zhì)部靠近根中央處的薄壁組織的裂隙逐漸增大自拍偷拍第九页；韌皮部與木質(zhì)部的面積比則不斷下降；12年久久中精品中文字幕入口，16年生移山參主根次生木質(zhì)部中導(dǎo)管數(shù)量和層數(shù)明顯多于8年生熟妇人妻激情系列。

According to the arra ngem ent of phloem and xylem, shape of xylem and the Arranging way of xylem rays, the midrib-bundles were divided into five forms :(1) amphicribral round bundle;(2 ) pinnate-ray amphicribral reniform bundle;(3) fan-ray amphicribral reniform b undle;(4) almost-amphicribral bundle;(5) collateral bundle.

根據(jù)中脈維管束結(jié)構(gòu)特點(diǎn)：木質(zhì)部與韌皮部的位置，木質(zhì)部的形狀男女粗暴进出中文AA毛片，木射線排列的方式1024亚洲国产精品一区二区，可分為5個(gè)類型：（1）圓形周韌維管束；（2）羽線腎形周韌維管束5060一级永久免费毛片；（3）扇線腎形周韌維管束甜蜜蜜手机在线观看；（4）近周韌維管束；（5）下韌維管束人人操人人干黄色网站。

At 21 DAG, the newly established cambium cell started periclinal division, which would result in the production of phloem outwards and xylem inward. The 11-23 immature xylem cell layers beneath the surface continued their differentiation into mature xylem cells.

表面下7-11層未成熟木質(zhì)部細(xì)胞在第7-14 DAG左右脫分化形成新的形成層亚洲特a级黄片。21 DAG，再生形成層開始平周分裂国产孕妇一级A片免费观看，產(chǎn)生新的韌皮部和木質(zhì)部黄色av免费在线播放。11-23層未成熟木質(zhì)部細(xì)胞繼續(xù)分化為成熟木質(zhì)部。

objective:to make a comparative analysis of the total saponins content in polygalaceae phloem and xylem parts to guide clinical treatment.methods:we determined the polygalaceae total saponins content at the 575 nm with oleanolic acid as a reference substance and vanillin-perchoric acid as a developer by using uv-visible spectrophotometry.results:the total saponins content of xylem parts was 3.33%,and that of polygalaceae phloem was 0.69%.conclusion:the total saponins content in polygalaceae xylem parts is much more than that of phloem parts,the total saponins in polygalaceae mainly exists in xylem parts.

目的：對(duì)遠(yuǎn)志原藥材木部及皮部中總皂苷含量進(jìn)行比較分析日日色综合色色，用以指導(dǎo)臨床用藥影音先锋高清无码。方法：以齊墩果酸為對(duì)照品，香草醛－高氯酸為顯色劑，采用紫外－可見分光光度法在575 nm處測(cè)定遠(yuǎn)志總皂苷含量亚洲国产小电影你懂的。結(jié)果：以此方法對(duì)遠(yuǎn)志木部及皮部中總皂苷含量進(jìn)行比較黄色网站日韩在线观看、分析，為遠(yuǎn)志皮部總皂苷含量為3.33 %另娄69XXXXX、木部總皂苷含量為0.69 %无码秒播成人网站免费。結(jié)論：遠(yuǎn)志中皮部總皂苷含量遠(yuǎn)遠(yuǎn)大于木部，遠(yuǎn)志總皂苷主要存在于根皮中美女一级黄色网站视频。

The callus started to produce near the surface of the wound from the remaining immature xylem cells including xylem parenchyma cells and xylem ray parenchyma cells...

愈傷組織由靠近傷口表面未成熟的本薄壁組織細(xì)胞和木射線細(xì)胞分裂產(chǎn)生国产黄色视频在线观看高清，維管形成層在愈傷組織內(nèi)層發(fā)生，且是一個(gè)漸進(jìn)的過程人人澡人摸人人添av。