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phloem

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phloem n.【植物；植物學】韌皮部。

n. 【植物；植物學】韌皮部。 “external phloem“ 中文翻譯：   外生韌皮部“included phloem“ 中文翻譯：   內含韌皮部; 內函韌皮部“interfascicular phloem“ 中文翻譯：   束間韌皮部“internal phloem“ 中文翻譯：   內生韌皮部“interxylary phloem“ 中文翻譯：   木間韌皮部“intraxylary phloem“ 中文翻譯：   木間韌皮部,內生韌皮部“loquat phloem“ 中文翻譯：   枇杷木白皮“perimedullary phloem“ 中文翻譯：   環髓韌皮部“phloem bundle“ 中文翻譯：   韌皮束“phloem element“ 中文翻譯：   韌皮部分子“phloem fiber“ 中文翻譯：   韌皮纖維 存在于韌皮部之纖維，在杉科、紅豆杉科及柏科之樹皮中常具相當亮之韌皮纖維“phloem fibre“ 中文翻譯：   韌皮纖維“phloem initial“ 中文翻譯：   韌皮部原始細胞“phloem island“ 中文翻譯：   韌皮島“phloem loading“ 中文翻譯：   韌皮部裝載“phloem necrosis“ 中文翻譯：   韌皮壞死病“phloem parenchyma“ 中文翻譯：   韌皮薄壁細胞; 韌皮薄壁組織“phloem ray“ 中文翻譯：   韌皮部射線; 韌皮放射組織; 韌皮射線“phloem strand“ 中文翻譯：   韌皮束“phloem tissue“ 中文翻譯：   韌皮組織“phloem transport“ 中文翻譯：   韌皮部運輸; 韌皮運輸“phloem treatment“ 中文翻譯：   韌皮處理“phloem unloading“ 中文翻譯：   和韌皮部卸出; 韌皮部卸出“primary phloem“ 中文翻譯：   初生韌皮部“phlobatannin“ 中文翻譯：   紅粉單寧; 紅粉鞣質“phlobaphinite“ 中文翻譯：   樹皮鞣質體; 鞣質體

phlogistic

More anthraquinone compounds was distributed in pith ray cells and the tissues of mature stem suchas bundle sheaths in large - scale vascular bundle , primary phloem and primary xylem than that in young stem . [ conclusion ] the distribution of anthraquinone compounds in the stem was of multilocus 結果隨著莖的不斷成熟，在莖的表皮、近表皮的1 ~ 2層皮層細胞及較內部皮層中，不同程度地增加貯藏和積累了一定數量的蒽醌類化合物，成為莖外部貯藏和積累蒽醌共化合物的主要結構部位成熱莖大型維管束的維管束鞘、初生韌皮部、初生木質部等組織和髓射線細胞分布了比幼莖多的蒽醌類化合物。

Then we get the conclusion that carotenoids mainly exist in the phloem and the top part of carrot the rate of the content of ct - carotene and p - carotene in different varieties or different parts of same variety is not always the same , showed that a - carotene and p - carotene in different parts are not always biosynthesized at a constant rate 不同品種胡蘿卜以及同一品種胡蘿卜不同部位的-胡蘿卜素和-胡蘿卜素含量的比值不是恒定的，在胡蘿卜的不同部位-胡蘿卜素和-胡蘿卜素并不是按某一固定的比例合成的。

There is great difference between the content of carotenes of different parts in different varieties : the content of carotenes of phloem is ' higher than xylem ' s to a great extent , and the results showed a descending trend of the content of carotenes from the top of carrot to lower parts 所以對這些品種建議提早采收，以便胡蘿卜素含量保持在較高的水平。胡蘿卜次生韌皮部中的胡蘿卜素含量極顯著的高于次生木質部，胡蘿卜肉質根中自上而下胡蘿素含量呈現遞減的趨勢，胡蘿卜素在胡蘿卜中主要分布于次生韌皮部和肉質根的上部。

The rhizome of cultivated rheum in qunjia of qinghai province , was picked broke into cortex , phloem , xylem and marrow , the content of cu , zn , fe , mn , co , ni elements of the every tissue was analyzed by atom absorb spectrum 采集青海群加地區種植大黃根莖，分為皮層、韌皮部、木質部和髓部等四部分，采用原子吸收光譜法分別測試了其不同組織中銅、鋅、鐵、錳、鉆、鎳等元素含量。

6 ( 5 ) cf , a kind of phloem transport tracer , was used to test the functioning of the wound phloem across the graft union . 6 ( 5 ) cf was introduced from the leaves of the scion into autograft of c24 inflorescence stem 8 days after grafting 將6 ( 5 ) cf引入到接穗的葉片中，熒光顯微鏡觀察結果表明： c24擬南芥花序軸自體嫁接后8d ，在砧木的韌皮部中中可檢測到6 ( 5 ) cf的存在。

The reducing sugar content in the phloem and xylem of populus pseudo - simonii , p . pseudo - simonii p . nigra , p . simonii p . nigra , p . koreana , 27 and 40 - year - old p . simonii wood was analyzed by 3 , 5 - dinitrosalicylic acid colorimetry 摘要利用3 , 5 -二硝基水楊酸比色法測定小青楊、小青黑楊、小黑楊、香楊、 27年生和40年生小葉楊韌皮部和木質部的還原糖含量。

They are common in many situations , for example as gland cells and epidermal cells , and in xylem and phloem parenchyma , where they are concerned with active loading and unloading of vessels and sieve tubes 許多情況下都有傳遞細胞發揮作用，例如：腺細胞和表皮細胞，還有木質部和韌皮部的薄壁細胞，該處導管和篩管的主動裝填和排空都與傳遞細胞有關。

For amorpha fruticosa linn . , there exists epidermal hair on the upper epidermis , some macro ventilating pit in the spongy tissue , many crystal cells in the phloem of the leaf and around vascular bundles 紫穗槐葉的上表皮有表皮毛，海綿組織局部有大型通氣孔，在葉的主脈韌皮部處和葉柄維管束內外都含有許多含晶細胞。

The result showed that cu , zn , fe , mn mostly distributing in the cortex , secondly distributing in the xylem or the marrow , the content is lower in the phloem of rhizome tissue on the cultivated rheum 結果表明，種植大黃根莖中銅、鋅、鐵、錳等元素主要分布在皮層，其次是木質部或髓部，元素含量較低的是韌皮部。

For 27 - year - old p . simoniir , the reducing sugar content in phloem and xylem at different heights did not show significant difference , while it showed closely negative correlation with the ratio of damaged trees 在27年生同一品系小葉楊樹中，雖然不同高度的還原糖含量差異不顯著，卻與被害株率呈現緊密負相關。

Roots also differ from roots in the arrangement of xylem and phloem , having a solid central strand of vascular tissue rather than a hollow cylinder of conducting tissue 根和莖不同，它無葉綠素，沒有芽和葉，木質部和韌皮部的排列順序也不同，其內部為實心的維管組織，而莖的內部為中空的圓柱形輸導組織。

If new cork cambia arise every few years , as in most species of woody plants , then the bark includes dead phloem and cortex as well as cork , and is termed rhytidome 若新的木栓形成層年年都有所加厚，像在多數的木本植物中，樹皮就包括死去的韌皮部，皮層以及木栓（軟木） ，這些部分共同構成落皮層。

Other modifications include the uneven thickening of guard cells , the sieve plates in phloem , the suberization of endodermal cells , the waterproof coverings of epidermal and cork cells 此外還有其他的一些修飾形式，包括不均勻的加厚保衛細胞和韌皮部中的篩板，內皮細胞的栓化等。

The hphr has more vascular bundles and a much bigger area of single vascular bundle , total vascular bundle , total phloem and total xylem in the first internode than shanyou 63 結果表明，重穗型組合的大維管束數目、單個維管束面積及維管束總面積、韌皮部總面積均明顯高于汕優63 。

Results showed that the reducing sugar content in phloem was much higher than that in xylem , and a significant difference was found in the phloem of different poplar strains 結果表明：各楊樹品系木質部的還原糖含量遠遠低于韌皮部的含量，且韌皮部的還原糖含量差異顯著。

In nonwoody plants it is the only food - conducting tissue , but in mature plants with secondary growth this function is taken over by the secondary phloem 在尚未木質化的植物中，它是唯一的輸送有機營養的組織，但在具有次生生長的成熟植物體中，該功能由次生韌皮部行使。

Vascular plants plants containing differentiated cells forming conducting tissue ( vascular tissue , also known as fascicular tissue ) , which comprises the xylem and phloem 維管植物：具有能夠形成體內運輸組織(維管組織：包括木質部和韌皮部)的分化細胞的植物。

Sap 1 . the solution of mineral salts and sugars that is found in xylem and phloem vessels and oozes out of cut stems 樹液： 1 .是植物木質部與韌皮部管狀分子中存在的含多種無機鹽與碳水化合物的混和溶液，可以從植物莖上的切口處滲出。

Bifacial leaf and mesophyll tissue contain crystals , phloem is rich in saliferous vacuoles , and the mechanical tissue is developed 異面葉，葉肉組織中含有晶體，韌皮部內富含含鹽液泡泡，機械組織發達。