gravitropism 中文意思是什麼

gravitropism 解釋
向重性
  1. The iaa contents in shoots and roots of 12 - d - old seedlings of arabidopsis wt and mutants were assayed. high eth level ( in eto1 - 1 ) showed the promotion of iaa synthesis or inhibition of the iaa catabolism, thus improves the root gravitropism

    從12d齡擬南芥幼苗的形態學表現上看， etol - 1根的向重力性與wt相比明顯增強了，而eirl - 1和etrl - 3的向重力性則明顯減弱，黃化的etrl - 3莖的負向重力性也減弱。
  2. The materials in this study were arabidopsis thaliana. ( wt ) and its mutants including ethylene over producer mutant ( eto1 - 1 ), ethylene insensitive root mutant ( eir1 - 1 ) and ethylene insensitive mutant ( etr1 - 3 ). from the phenotypes of 12 - d - old seedlings of arabidopsis wt and mutants, the root gravitropism was obviously enhanced in etol - 1, but diminished in eir1 - 1 and etr1 - 3, compared with wt. the shoot negative gravitropism was also diminished in etiolated seedlings of etr1 - 3

    以擬南芥的eth過量產生型突變體（ etol - 1 ） ，根對eth不敏感型突變體（ eirl - 1 ，地上部對eth響應） ， eth不敏感型突變體（ etrl - 3 ，地上部和根均對eth不敏感）及其野生型（ wt ， columbia生態型）為實驗材料，利用根的向重力性反應為模式，分析了其中eth對auxin效應的調控及其原因。
  3. It is concluded that eth perform its action on gravitropism through the regulation of both iaa contents and iaa polar transportation

    上述兩方面結果揭示：在向重力性反應中， eth是通過調節iaa的水平和iaa極性運輸兩種機制起作用的。
  4. Recent advance in molecular biology, associated with the adoption of the mutants have allowed major breakthroughs in our understanding of both root and shoot gravitropism

    隨著突變體和分子生物學技術的應用，生長素（ auxin ）在向重力性反應中的中心作用已被確認。
  5. Gravitropism is very important for plant to take up the water, mineral ions and to harvest light, which are necessary for growth and development

    植物向重力性反應對其生長發育有著重要的生理作用，直接影響到植物體從外界獲得水分、礦物質及光能等生長必需物質。
  6. So extremely probably, eth affects the gravitropism via auxin. in this case, such mutants might be used as the ideal model plants for the study of the closs - talk between eth and auxin

    因此， eth有可能通過調控auxin這個中心因素來影響向重力性反應，這些乙烯突變體極可能成為研究eth對auxin作用的理想模式材料。
  7. Now, it is confident that auxin plays the central role in regulating the gravitropism in plants. it has been discovered that the gravitropism had changed in some mutants on eth biosynthesis or signaling

    我們和其他學者在對乙烯（ eth ）的一系列突變體的研究中發現，某些乙烯合成或響應的突變體其向重力性反應也發生改變。
  8. Insensitivity to eth ( in eir1 - 1 root and etr1 - 3 ) led to the impossibility of iaa transportion from shoot tip to shoot bottom or root, so that result in the diminishment of root gravitropism

    這種表型上的差異表明：高水平的eth加強了根的正向重力性反應； eth信號轉導的阻斷引起根的正向重力性及莖的負向重力性減弱或消失。
  9. In our experiments, however, the inhibition of flavonoid on root system development is related to high nitrate, and quercetin, one kind of flavonoid, does not inhibit but promotes the gravitropism instead

    但我們在實驗中發現，類黃酮對根系發生的抑制是與高n相聯系的。對于向地性，類黃酮中的一種? ? quercetin不但不抑制，反而促進向地性? ?誘導超向地性。
  10. On the one hand, quercetin promotes hypocqtyls phototropic growth, on the other hand, it promotes gravitropism of root tips. when the seedlings are placed tilted at 80, quercetin induces root tips getting into medium, while on control case, it grows along the surface

    一方面q促進了下胚軸的向光生長，另一方面，促進了根尖的向地性，在80培養時， q誘導根尖鉆入培養基中。
  11. Lateral root development and gravitropism are regulated by polar auxin transport ( pat ), and auxin efflux inhibitors ( aei ) inhibit lr growth and tropism. because of > the structural similarity to pat inhibitor npa, flavonoid has long been regarded as endogenous polar auxin transport inhibitor

    生長素極性運輸（ polarauxintransport ， pat ）對側根發生和根尖向地性起著重要的調節作用，添加外源生長素極性運輸抑制劑不僅抑制了側根發生，同時還使根尖喪失了向地性。
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