nlwxpearo
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 Posted: Sat 10:01, 12 Feb 2011 Post subject: Important horticultural plants in the polyamine _2 |
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Important horticultural plants in the polyamine
Spermine can promote root; in mung bean, the polyamine titre, RNA and DNA content and protein content estimation were formed with the root of the original changes, and a similar trend Shyr and Kao (1985) found that although inhibition generated MGBG However,[link widoczny dla zalogowanych], ornithine, and spermine and spermidine have a similar role to promote rooting. Obviously, the mung bean call ADC ODC polyamine two ways to increase and the IBA on the stimulation are equivalent. According to Ger ~ eve and Haclett (1990) reported the formation of adventitious ivy to be the UK through three stages, namely, the first cell before the rooting phase (0-6 days); meristem formation phase (6-9 days) The result is the formation of root primordia; root development and elongation stage (9-18 days). Penetrate the epidermis and the root cause Chong visible to the naked eye, of which the third stage and increased deer amines. Ethylene treatment to prevent pregnancy stretch root primordia, Tanzania does not affect the previous steps. The study also showed that - British ivy roots in childhood and maturity are different reactions, but this difference and almost no relationship between polyamines and ethylene (Gel3eve and ~ fester, 1991); have _ ene and polyamine 3] are adventitious root formation in the induction phase of rooting will affect the future. Wang and Faust (1986) to the root was a measure, the results show that Apple rooting and increased polyamine levels with the bean is contrary to the reports of reduced root DFMO more effective than DFMA; Similarly, inhibition by DFMA Cherry polyamine synthesis prevents the formation of roots, and through the application of exogenous putrescine to be reversed. MGBG will not be weakened root; G (an ethylene synthesis inhibitor) to seven-fold reduction of ethylene synthesis, can stimulate the mark slightly in spermine binding in methionine, but does not affect the root. Bagni and other reports, the most active cells in Jerusalem artichoke root the highest ODC activity, therefore,[link widoczny dla zalogowanych], ODC pathway and the relationship between root formation more closely the general approach than the ADC is not surprising that} in the root system during the formation of polyamines and nucleic acid titer The titer is also closely hand in hand. (-B) stretch between polyamines and the length of the section section asked the stem tissue is generally considered the performance of the low level of gibberellin in pea, rice, wheat, corn, beans, bamboo shoots and apples, melons, GA Dwarf Plants All content and individual GAS biological pathway into metabolic disorders that may exist in existing research. Dai et al (1982) found that in vivo GA treatment of dwarf pea increased ADC activity and putrescine and spermidine levels rise and promote the elongation corresponding GA; Although polyamine content per gram of tissue remained unchanged, but each a stem volume of natural polyamines Taiwan is a long section of GA, the higher of Kaur-Sawhney et al (1985) further defined the effects of polyamines on stem elongation, they used the GA, found that 9-day-old pea seedlings, treatment After 9 hours, ADC increase, while stem elongation occurred in the 12 hours after treatment; GA treatment reduced stem elongation can join DFMA 3270. Smith et al (1985) with plant height,[link widoczny dla zalogowanych], internode length and other genetic traits of different pea varieties (including the slim, high-strong type, dwarf-type and dwarf type) studies have shown that the number of polyamine elongation with section Q long-range dependence; DFMO and DFMA inhibited elongation in a later study, Smith (1990) found that polyamines do with the promotion of elongation on GA,[link widoczny dla zalogowanych], she concluded that plants need for normal growth of polyamines, but GA is not the role of polyamines Medium. This shows that the section between the stage of the growth of cells seem to require polyamines. Fourth, the conclusion of evidence has strongly indicated that tissue polyamine content and DNA synthesis, not only can affect the metabolism of polyamines in DNA synthesis, and polyamines can also affect DNA metabolism and plant growth. Polyamines can affect morphogenesis, some facts that should be excluded from the starting polyamine organogenesis, but after the growth process is affected by the positive effects of polyamines, it would appear, polyamines on the growth process can promote, but, on the Polyamine effects on the morphogenesis of the evidence is far from enough. Exogenous and endogenous polyamines in the role of polyamines in cells of different geographical distribution is usually high concentration of endogenous polyamines does not mean that they can effectively influence occurred in the presence of certain other parts of polyamine physiological processes. Translated JulesJaniek, 1992, HorticahuralReviews, Vo1.14, JohnWiley & Sons,[link widoczny dla zalogowanych], lnc. , 333 ~ 356 on: MiklosFaust and ShiowY. Wang Translation: NI Wu-Zhong Du Lingling
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