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plant hormone 植物激素。

plant louse

The hypocotyl segments of cabbage were used as the explants and cultured on a ms medium supplemented with plant hormone , which was established a cabbage regenerated system . the differentiation rate of adventitious buds was above 80 % . in this study , ubic gene was transformed to cabbage through agrobacterium mediated system 同時,采用甘藍無菌苗的下胚軸為外植體,以ms為基本培養基,分別用直接分化再生系統和愈傷再生系統誘導不定芽的分化,建立了高效穩定的再生系統,不定芽分化頻率達80以上。

Abscisic acid ( aba ) acts as a plant hormone , not only regulates many important aspects of plant growth and development , including dormancy , senescence and fruit development , but also mediates some aspects of physiological responses to environmental stresses such as drought , cold and salt 脫落酸( abscisicacid , aba )作為一種植物激素,已證實不僅在調控植物休眠、衰老和果實發育等諸多過程中起著重要的調節作用,而且,在植物對干旱、低溫、鹽堿等逆境脅迫的反應中起著共同凋節因子的作用。

Our results provided direct evidence that pf40 gene play a role in the tissue development , with knockout this gene the lateral buds were not visible . the plant hormones auxin and cytokinin appear to play a major role in controlling this process , therefore , the concertrition of auxin and cytokinin was measured , however , the concentration of the two hormone was variation a little in transgenic plants , but the ratio of the two was more than 5 fold in the pf40 gained function plant than that in wild type . furthermore the pf40 gene effected differentiation of the vascular bundles in different transgenic plants , results showed the pf40 could change both xylary fibers and vessel 進一步的實驗發現pf40基因會影響植物側芽發育的早期,即pf40基因作用在側芽形成與發育的早期。對轉基因谷子的組織切片的分析還表明pf40基因引起不同形式的轉基因谷子的維管組織的發育的差異,轉化正義載體谷子的木質部變多,維管系統增多,而反義或干擾的轉基因谷子的木質部數量變少,木質部分化異常。從轉基因的結果可見pf40基因可以減弱植物的頂端優勢,這種作用是通過改變植物體內激素的含量實現的。

Artemisinin , a sesquiterpene lactone containing an endoperoxide bridge , is a kind of phytoalexin . sa , a key signal molecular during systemic acquaired resistance ( sar ) , is related to the biosynthesis of phytoalexin . aba , a stress - resistance plant hormone can influence the secondary metabolism to stimulate phytoalexin biosynthesis 青蒿素屬于萜烯類化合物(倍半萜類)是植保素( phytoalexin )的一種, sa是植物產生系統獲得性抗性的重要信號分子,與植保素的產生相關。

The plant hormone ethylene has a profound role in plant growth and development . a number of ethylene signaling elements have been isolated and identified . although nuclear cascades in ethylene signal transduction pathway from ein3 to erf1 to pr proteins has been established in arabidopsis thaliana , a similar route from ein3 to erebps to fruit ripening and senescence has not been elucidated in lycopersicon esculentum ( tomato ) 乙烯對植物的生長發育起重要的調控作用,隨著乙烯信號轉導研究的不斷深入,許多乙烯信號轉導組分已被分離和鑒定,并在模式植物擬南芥中已建立乙烯信號傳遞過程中的核內級聯反應: ein3 erf1 ( erebps )病原相關蛋白,但在番茄中還沒有建立ein3 erebps果實成熟相關基因的相似路徑。

Abstract : in recent years , great progress has been made in the research field of plant hormone ethylene . this review focuses on the advances in the molecular biological research areas of ethylene biosynthesis pathway , ethylene signal transduction pathway and the mechanism of ethylene responese 文摘:本文對植物激素乙烯的生物合成、乙烯傳號信導途徑、乙烯反應作用機制等方面的分子生物學進行了評述。

Even it is probably a direct target molecule of plant hormones . jasmonic acid and its derivatives ( jas ) , a kind of plant endogenous compounds , have ubiquitous physiological effect on plant growth and development Ja及其衍生物(總稱為jas )是近些年來倍受植物學家青睞的植物內源有機化合物,被認為同iaa 、 aba等激素一樣具有廣譜的生理效應。

Water stress induce the high and quick accumulation of plant hormone abscisic aicd ( aba ) , which reduce the stomatal conductance of leaves , decrease the loss of water , and improve plant tolerance to water stress 滲透脅迫可以誘導植物積累脫落酸( aba ) , aba的積累可以降低植株葉片氣孔導度,減少水分的散失,從而增強植物對滲透脅迫的適應性。

Furthermore , some embryogenesis - related proteins were found . we also studied the regulation of three factors including plant hormone , activated charcoal and sucrose during somatic embryogenesis of aralia elate ( miq . ) 我們探討了植物激素、活性炭和蔗糖三種外界因子對體細胞胚的調控機理,試圖進一步揭示體細胞胚發生的分子基礎。

Comparing the difference in the modes of action between brassinolide and auxin , gibberellin , it has been proposed that the signal transduction pathway of br is different from those of other plant hormones 通過比較油菜素內酯與生長素、赤?素促進生長作用方式的異同,提出油菜素內酯促進生長的信號傳導路徑不同于其它植物激素。

Jasmonates ( jas ) are a new class of plant hormones , which synthesize from linolenic acid via an octadecanoid pathway in planta . they play important role in plant growth and development as well as in plant defense 茉莉素是由-亞麻酸起始合成的一類新的植物內源激素,對植物的生長發育和抗逆性等都起著重要的作用。

The plant hormone jasmonatic acid affects development and mediates plant responses to environmental stresses . transcriptional regulation is controlled by the interactions of cis - acting elements with the relevant factors 茉莉素作為植物的一種內源激素,參與植物的生長發育和基因表達調控等重要的生理生化活動。

Growth inhibitor a substance that slows the growth of a plant , for example the plant hormones abscisic acid and ethylene ( ethane ) , which act at very low concentrations 生長抑制劑:能夠減緩植物生長的物質,例如植物激素脫落酸和乙烯(乙烯) 。往往生長抑制劑在非常低的濃度下便可產生作用。

It has been for more than a century since the identification of ethylene as a gaseous plant hormone , and studies on the effects of ethylene to plants have enabled broad applications in agriculture 植物激素乙烯早在一百多年前就被確認,相關的研究使得乙烯廣泛的被應用于農業上。

The plant hormone abscisic acid ( aba ) plays important roles in seed maturation and dormancy and in adaptation to a variety of environmental stresses 植物激素脫落酸( aba )在種子成熟、休眠以及植物對各種各樣環境脅迫的適應都起著重要的作用。

Like most plant hormones , cytokinins also have other effects , including the prevention of leaf aging , or senescence 如同大多數植物激素,細胞分裂素很有其他功效,包括阻止葉片老化或衰老。

Ethylene , as the most simple plant hormone , plays major roles in regulation of plant growth and development 乙烯是植物體內一種最簡單的激素,在植物的生長和發育過程中起著重要作用。

Ethylene ( ethane ) a gaseous hydrocarbon ( c2h4 ) , produced in varying amounts by many plants , that functions as a plant hormone 乙烯:是一種氣態的碳氫化合物( c2h4 ) ,許多植物都可產生。

On changes of physiology and biochemistry and plant hormones in super rice seedlings by different stress signaling 不同逆境脅迫信號對超級稻幼苗生理生化影響及植物激素變化的初步研究