trichomes 中文意思是什麼
trichomes
解釋
香毛簇-
Trichomes are unicellular or pluricellular outgrowths from the epidermis of leaves, shoots, and roots.
毛狀體是葉片、枝條和根的皮層的單細胞或多細胞的外生物。 -
The effect of glandular trichomes may depend on the nature of the exudate.
具腺毛狀體的影響依賴于分泌物的性質。 -
In general, the purely mechanical effects of the pubescence depend on four main characteristics of the trichomes: density, erectness, length, and shape.
一般來說，柔毛的機械作用取決于毛狀體的四個主要性狀：密度、直立性、長度和形狀。 -
Plant morphological characters, such as trichomes, have been used successfully as visual surrogates for resistance factors in selection programs.
植物形態特徵例如毛狀體在選擇工作中已成功地用作抗蟲因素的一種指標。 -
Trichomes are specialized epidermal cells, which are normally present on the leaves, stems, and sepals of arabidopsis. they are thought to provide a first line of defence against pests and pathogens, so the cloning and analysis of trichome - specific - promoter is of significance
表皮毛是特化的植物表皮細胞，在擬南芥中表皮毛通常分佈在葉、莖、花萼上，它是植物體抵禦外界侵害的第一道屏障。 -
We clone a 1. 3kb promoter sequence of the homologous gene in arabidopsis by pcr. this promoter is shown to direct the specific expression of the reporter gene, b - glucuronidase ( gus ), in trichomes of arabidopsis. promoter deletion analysis reveal that the region from - 300 - - 1 bp is sufficient to direct trichome - specific expression
對其進行缺失突變，構建5個缺失表達載體轉基因擬南芥，葉片gus定量測定分析表明- 300bp ? - 1bp序列就可以指導gus基因在表皮毛細胞中特異表達，說明這段序列可能含有指導此啟動子在擬南芥表皮毛細胞進行特異表達的核心序列。 -
In cucumber, there were obviously si depoist on the older leaves from + si plant, si ca n ' t be observed on the younger leaves from + si plant. there were no silicon distribtion on the - si leaves. by analzing edx map of silicon, it was showed that, in the leaf blades of rices, si exsisted in the form, of fan - shaped and dumbbell - shaped. there were many trichomes which contained si on the surfaces of leave and stems on cucumber
在兩種植物中，水稻表現出老葉硅分佈比嫩葉密集，從葉尖-葉中部-葉基部表現出硅分佈密集程度逐漸降低的趨勢；加硅處理的黃瓜老葉硅的分佈較明顯，但嫩葉和未加硅處理的葉片未見明顯的硅的染色。通過掃描電鏡及硅的x能譜分析顯示，水稻硅呈紡錘體及扇形硅質體。 -
The silicon and pod accumulated on the base of trichomes. the results of external experiment demonstrated that pod is essential for silica deposit, addition of omm, 0. 5mm and 2mm hssio4 to reaction systems had no effect on the activity of pod
體外模擬結果顯示pod是硅沉積的一個必需的催化物質，而硅酸在0mm0 . 5mm ， 2mm ，濃度下，對pod活性無明顯影響；但在5 ， 10mm濃度下，抑制pod活性。 -
The results of cytochemical localization of silicon demonstrated that there were fan - shaped silica bodies and cyliner shape silica deposit, and high activity of pod were observed in fan - shaped silica bodies. the base of trichomes consisted of large quantity of cells. the number of cell increased with the age of leaves
黃瓜表皮毛基部細胞因葉齡不同發育程度不? ，即葉齡長，硅分佈高，其表皮毛細胞組成數量多，在此硅的分佈與表皮毛的位置一致，而同時pod活性與硅分布圖吻合。
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