Intrafascicular CAMBIUM between xylem and phloem . annual ring Secondary phloem See secondary growth .

這種細(xì)胞存在于根和芽的頂端分生組織以及在原來分裂組織基礎(chǔ)上形成的側(cè)生分生組織欧美乱强伦视频，如位于木質(zhì)部和韌皮部之間的束中形成層无码三级在线中文字幕。

Results The structures of the aloe leaves were basically similar as characterized by the presence of the large, well developed parenchymatous cells in the phloem pole where anthraquinones were stored. Some positive correlations exist between the contents of anthroquinones in the leaves of different species and different parts of leaves of the same species, and some phytotomic factors including the density of vascular bundles, the ratio of large parenchymatous cells in phloem and the thickness of the chlorenchyma.

結(jié)果 蘆薈屬植物葉的基本結(jié)構(gòu)類似，維管束韌皮部內(nèi)具大型薄壁細(xì)胞為該屬的結(jié)構(gòu)特征黄片欧美性爱，是蒽醌類物質(zhì)的主要貯存場所美日韩制服中文字幕视频；不同種植物葉內(nèi)及同種植物葉的不同部分中蒽醌類物質(zhì)的含量不同與維管束分布密度精品狼友视频在线播放、大型薄壁細(xì)胞所占比率及同化組織厚度成正相關(guān)。

The Cork was consisted of five or six layer long cells. The secondary phloem occupied 46% of the diameter of root, and the parenchymas cell was abundant of the inclusions. The secondary xylem consisted of vessel, xylary radial ,and a little of xylary parenchyma cells. Some segment of hypha, swelled hypha, pelotons and conidiophore were colonied in cork and secondary phloem.

周皮由木栓層毛片无码大全免费，木栓形成層和栓內(nèi)層組成人妻大白腚，其中木栓層由5～6 列長形細(xì)胞組成；維管組織中次生韌皮部所占根徑的比例達(dá)46%www.xx日本黄色视频.com，其薄壁細(xì)胞中內(nèi)含物較豐富国产淑女色视频，次生木質(zhì)部中分布有導(dǎo)管和木射線及少量木薄壁組織；在格木木栓層和次生韌皮部中分布有菌絲片段欧洲欧美精品黄片、膨大的菌絲和菌絲團(tuán)及分生孢子曰本a三级三级三级。

Aphids in the process of inhaling plant sap virus particles and auxiliary proteins also be inhaled, thus completing the process by poison, which also supports the field citrus aphid is non-persistent decline disease vector of disease, while the citrus Huanglongbing is phloem restricted by the bacteria caused the main pathogens present in the phloem, the fleas only by phloem feeding in diseased plants, pathogens in the body through the back to complete the salivary glands in the course of the next through the sieve tube feeding in the secretion of saliva the pathogens into the healthy tree, Citrus Huanglongbing different characteristics with aphid-borne diseases, Huanglongbing to persistent disease.

蚜蟲在吸入植物汁液的過程中病毒粒子和輔蛋白同時也被吸入，從而完成獲毒過程91露脸经典对白，這也支持了田間蚜蟲是柑桔衰退病等非持久性病害傳播介體国产精品日韩欧美在线第3页天美，而柑桔黃龍病是由韌皮部限制性細(xì)菌類引起，病原體主要存在于韌皮部中A片国产又色在线观看，木虱只有通過在病株韌皮部取食日本人妻久久二区视频观看，病原在體內(nèi)完成循回到唾液腺中，在下一次取食過程中通過在篩管中分泌的唾液將病原體帶到健樹日韩精品欧美视频一区，柑桔黃龍病與蚜蟲傳病特點(diǎn)不同中文字幕在线观看2022，黃龍病為持久性病害。

The results showed that at the beginning stage of being attacked by Chinesis white pine beetle and their symbiotic blue-stain fungus, PAL, PPO, SOD activities and MDA content significantly increased in the phloem of P. armandi, and decreased with the increase of the number of D. armandi and the attacking on the xylem and phloem of P. armandi from blue-stain fungus, then reached the minimum level in withering stage of P. armandi. But the contents of nutrition materials in the phloem, such as water, protein, glucide, fat, amylum and so on, declined with the infestation of D. armandi and symbiotic fungus. In summary, the resistance of physiology and biochemistry in the phloem of P.

結(jié)果表明国内体内she精视频乱码，在華山松大小蠹和共生藍(lán)變真菌危害初期wwwxxxx69日本，華山松韌皮部內(nèi)的苯丙氨酸解氨酶、多酚氧化酶亚洲Aⅴ永久无码天堂、超氧化物歧化酶活性均顯著提高欧美-黄色工厂，丙二醛含量明顯增加；但隨著華山松大小蠹種群數(shù)量的增加和藍(lán)變真菌對華山松韌皮部和木質(zhì)部組織危害的加劇亚洲精品色婷婷在线影院，韌皮部組織內(nèi)的PAL久久久久久亚洲日韩精品一区区三区、PPO和SOD活性逐漸降低，在枯立木階段降至最低国产人爱视频A片在线观看；與此同時欧美精品视频专区在线，華山松韌皮部內(nèi)的水分及蛋白質(zhì)、糖類鲁一鲁在线观看精品视频、粗脂肪在线黄色视频了,、淀粉等營養(yǎng)物質(zhì)含量，則隨華山松大小蠹和共生藍(lán)變真菌危害的加劇而不斷減少无码又黄又湿又免费视频下载。

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：對遠(yuǎn)志原藥材木部及皮部中總皂苷含量進(jìn)行比較分析亚洲一区日本，用以指導(dǎo)臨床用藥。方法：以齊墩果酸為對照品欧美一级A一级a爱片牲交高清，香草醛－高氯酸為顯色劑自拍黄网，采用紫外－可見分光光度法在575 nm處測定遠(yuǎn)志總皂苷含量手机在线a视频。結(jié)果：以此方法對遠(yuǎn)志木部及皮部中總皂苷含量進(jìn)行比較、分析99热这里只有精品最新首页，為遠(yuǎn)志皮部總皂苷含量為3.33 %国产真人一级做a片、木部總皂苷含量為0.69 %。結(jié)論：遠(yuǎn)志中皮部總皂苷含量遠(yuǎn)遠(yuǎn)大于木部高清国语自产拍视频在线不卡，遠(yuǎn)志總皂苷主要存在于根皮中亚洲欧美中文日韩另娄变态。

The results showed that glucose and fructose are primary soluble sugars from night to 10: 00 a.m. in mature leaves, but during 13: 00 - 16: 00 p.m., stachyose becomes the most abundant oligosaccharide, this diurnal change is mostly due to the tempestuous fluctuation of stachyose concentration in mature leaves. During photoassimilate transportation, the p rimary soluble sugar in phloem sap is stachyose. When transportation is finished, sucrose becomes the main sugar in phloem sap. Cucumber leavesmay store photoassimilate in the forms of starch, glucose, fructose, stachyose and sucrose at night. The concentrations of glucose, fructose and stachyose in phloem sap are much lower than in leaves at that time. There may be some unique mechanisms modulating source-sink translocation by which soluble sugars in leaveswere prevented from loading into the phloem further during night.

結(jié)果表明夜間至上午10： 00，葡萄糖和果糖是葉片中主要的可溶性糖欧洲AV在线不卡，而下午13： 00至16： 00在线直接看免费黄色网站，水蘇糖成為成熟葉片中含量最高的可溶性糖，這種變化主要由葉片中水蘇糖含量劇烈的晝夜變化引起人人看人操；當(dāng)黃瓜同化物從源葉向外運(yùn)輸時啊疼轻点视频，韌皮部汁液中的可溶性糖以水蘇糖為主，運(yùn)輸完畢后則以蔗糖為主又爽又黄又高潮视频在线观看网站；黃瓜成熟葉片在夜間以淀粉免费福利黄视频、葡萄糖、果糖葡京99热这里只有精品_、水蘇糖一进一出免费视频、蔗糖等各種形式貯藏尚未運(yùn)出的同化物，而此時韌皮部汁液中葡萄糖蝌蚪久久精品午夜、果糖色哟哟网站一区二区、水蘇糖的含量極低，可能有特定的源庫調(diào)節(jié)機(jī)制阻止葉片中的可溶性糖在夜間進(jìn)一步向韌皮部中裝載九九精品国产。

The probing behaviors of the tea green leafhopper, Empoasca vitis Gothe, on nine tea cultivars were studied by videotext Direct Current-Electrical Penetration Graph, i. e. DC-EPG. Following seven types of waveforms produced by the leafhopper stylet probing were determined: A, stylet pathway formation; S, salivation when stylets pierce into and stay in phloem; C, active ingestion before stylets reach phloem; E and F, passive ingestion in phloem; R, the insect resting with its stylet inserted into the leaf tissue and NP, not probing.

應(yīng)用可視DC-EPG方法研究了假眼小綠葉蟬在9個品種茶苗上的口針刺探行為色淫综合区，共發(fā)現(xiàn)并初步確定了7種主要波型，即A波亚洲综合性视频在线网站、S波射视频网、C波在线观看精品黄片、E波毛片在线看片、F波和R波、以及非刺探波NP波在线你懂视频。A波為刺探波永久变态另类AV天堂，S波為口針向韌皮部刺探和進(jìn)入韌皮部中的分泌唾液波，C波為口針到達(dá)韌皮部之前的主動取食波好爽好深好紧好高潮，E波和F波為口針在韌皮部中吸收波99re国产在线精品最新66，R波為取食間歇波。

Of thick bark usually located in windward habitats. The phloem color was related to the inclusion and contents of the phloem cells, especially to the tannin and resin of the phloem parenchyma and their oxidation.

但是韌皮部的顏色則與細(xì)胞內(nèi)含物的多少和成分有關(guān)在线观看的毛片网站，尤其是韌皮薄壁細(xì)胞內(nèi)的丹寧和樹脂的含量以及它們在空氣中的氧化作用有關(guān)青青女在线被干视频。

The distribution of ATPase activity in the phloem parenchyma cells and flesh parenchyma cells(no-phloem parenchyma cells)changed during the different developmental phases of the fruit.It isparticularly interesting to observe a band along the plasmalemma of flesh parenchyma cellsadjacent to the phloem,the band highly enriched with the ATPase activity,forming a ring ofencirclement that surrounds the phloem.

結(jié)果表明：SE/CC復(fù)合體的ATP酶主要定位于質(zhì)膜上www.jizzcom，韌皮薄壁細(xì)胞和果肉薄壁細(xì)胞的ATP酶在不同時期的分布和活性是不一樣的，令人注目的是：在鄰近韌皮部的果肉庫細(xì)胞的細(xì)胞壁和質(zhì)膜之間發(fā)現(xiàn)一條ATP酶活性物質(zhì)的聚集帶日韩视频www色，形成環(huán)狀无码在线首页第一页在线，包圍韌皮部。