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translocation
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     THE TRANSLOCATION OF SDNA
     论“SDNA位移”
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     Chromosome Translocation and Cancer
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     experimental group of bacterial translocation (Ⅱ);
     Ⅱ组:细菌移位实验组。
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     7L(S), translocation-deletion line Lr.
     7L(S); 易位缺失系Lr.
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  translocation
Meanwhile, the accumulation of As in the roots was greater than that in the shoots, the translocation factor (TF) was ?0.3 and the bioaccumulation factor (BF) was ?0.6, thus showing that Rorippa globosa had an excluding effect on As uptake.
      
The transgenic organisms thus obtained differed from the original plants in their patterns of Ambiol-induced growth and proton translocation across the plasma membrane of the tuber cells.
      
Effects of Growth Regulators on H+Translocation across the Membranes of Plasma Membrane Vesicles from Potato Tuber Cells
      
Phytohormone Interactions in the Control of Proton Translocation Activity of Plant Cell Plasmalemmata
      
Only malate and succinate (but not glutamate) are transported through PBM in mature nodules; and the rate of metabolite translocation through PBM in aging nodules is decreased.
      
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A.The Soils Since the goological formation of this mountainous area is quite uniform,a vertical distribution of soils is obviously observed. At the top of the mountain with an elevation of 8,500 feet,the podzolic soil is found. The process of podzolization is clearly shown by the translocation of clays,organic matter, and active aluminum from an upper to lower layer.The gray brown podzolic soil is distributed in areas ranging from 7,000 to 8,500 feet in elevation.It is developed under forest and...

A.The Soils Since the goological formation of this mountainous area is quite uniform,a vertical distribution of soils is obviously observed. At the top of the mountain with an elevation of 8,500 feet,the podzolic soil is found. The process of podzolization is clearly shown by the translocation of clays,organic matter, and active aluminum from an upper to lower layer.The gray brown podzolic soil is distributed in areas ranging from 7,000 to 8,500 feet in elevation.It is developed under forest and has a surface covering of leaf litter and a surface soil with high content of organic matter.In places at an elevatin from 3,900 to 7,000 feet the yellow podzolic soil is dominant.At an elevation below 3,000 foot the red podzolic soil and the sketetal soil are fonnd. The analytical data of the soils of this area may be summarized as follows: 1.pH values of the soils:In the whole area,since the parent rock (gneiss) is poor in basic constituents,soils are all acid in reaction.The pH of the different horizons of the soils ranges from 4.0 to 5.5.The A_0 and A_1 horizons are usually less acid than B horizon,the A and B horizons are much more acid than the parent rock.This shows the leaching process of the soils under such a humid atmosphere. 2.Organic Matter of the soils:The organic matter content of the soils in this area is greatlg influenced by the kind of the vegetation cover.At an elevation of 8,500 feet, the soil developed under forest has 38.92% of organic matter in the A_1,while that under grass has only 11.08% of organic matter in the corresponding horizon.However as the vegetation cover is constant,the dopth of the A_1 and its organic matter content are evidently affected by the elevation.At an elevation of 3,000 feet,the A_1 horizon of the red podzolic soil is only 1 cm.in depth,and it has 3.37% of organic matter.At an elevation of 8,500 feet,howerver,the A_1 horizon of the podzolic soil is 7 cm.in depth, and it has 11.08% of organic matter.In addition,deposition of organic matter in the B horizon is clearly found in the podzolic soil,but it has not been seen in soils found at lower elevation. 3.Active aluminum of the soils:All the soils in this area are high in active aluminum. They contain from 20 to 16 p.p.m.of active aluminum.The content of active aluminum in the different horizons of the same profile has a very close relationship with the pH values of the corresponding horizon.The less acid the reaction the smaller is the amount of acitve aluminum.The active aluminum of the soil is usually higher in amount than that of the parent rock from which the soil is derived. 4.Available calcium magnesium,and potassium of the soils:All the soils are general- ly low in available calcium,magnesium,and potassium.The comparatively high content of these elements in the A horizon is derived from the leaves of the vegetation which are grown on that soil. 5.Available phosphorus of the soils:All the soils of this area are low in available phosphorus. 6.Available nitrate:All soils in this area are very low in nitrate. B.The Vegetation 1.The plants growing on soils of this area are most calcifuge species which are acid- loving (Vaughan and Wishe,1937).As far as the chemical analysis of the soil is concer- ned,those species may be assumed as not only acid-loving,buy also active aluminum- loving (Hutchinson,1943). 2.The distribution of the calcifuge plants In this area is apparently affected by the local climate in terms of elevation.Some of them (temperate plants) are confined to high elevation,others(tropical plants) being limited to low elevation,Two groups of the plants may be given as follows.Many of them are of the same species as those found in southwestern China (Hou,1944). (a) Plants mainly ocurring in areas at elevations from 7,000 to 8,500 foot (temperate plants): Pteridophyta: Destaedtia Scabra (Wall.) Moore Diranopteris linearis Under. Hicrioptris glauea Under. Hymenophyllum crispatum Wall. Hymenophyllum exsertum Wall. Lidsaya cultrata Sw. Lycopodium clavatum L. Plagiogyria pyphylla (Kunze) Mett. Pteridium aquilinum Wightianum Trym Pteris aspericaulis Wall. Flowering Plants: Castanopsis tribuloides A.DC. Lindera pulcherrima Bth. Osbeckia crinata Bth. Rhododendron arboreum Sm. Rhododendron grande Wight Pieris formosana D.Don Vaccinium refersceda HK. Vaccinium serrasum Wight (b) Plants mainly ocurring in areas at elevation from 1,000 to 3,000 feet (tropical plants): Pteridophyta: Adiantum philippense L. Blechnum orientale L. Aglaoorpha coronaus Copel Lycopodium cernum L. Nephrolepsis cordifolia Presl Tectaria spp. Polypodium ucidum Roxb. Flowering plants: Oxyspora paniculate DC. Themeda arundinacea Ridl.

1945年10月中旬,作者留印三月另一周,曾作三次野外调查,计包括印缅边区、恒河平原及喜马拉雅山东南麓等三区,茲先将大吉岭区调查结果,草成此文。调查区域大吉岭位于喜马拉雅山东南麓,在我国西藏边境,全区是山地,海拔自1000到9000尺不等,主为酸性的片麻岩地层,在拔海6500尺地点,年平均气温为56.3℉.,年雨量为122寸。土壤灰壤——灰棕壤组合:在拔海8500尺左右的山顶,灰壤见于草地上,而灰棕壤则发育在森林之下。灰棕壤——灰化黄壤组合:在拔海7000—8000尺地带,森林下仍是灰棕壤,而草地上则为灰化黄壤。灰化黄壤——粗骨土组合:在拔海1000—3000尺地带,片麻岩生成灰化红壤,酸性砂岩生成砾质土。全区土壤特征可归纳如下: (1)土壤 pH 值:全区因土壤母质为酸性片麻岩,各类土壤剖面亦为酸性反应;pH 值约自4.0至5.5。A_1层之 pH 值恒较 B 层为大,而土壤剖面内之 A 层及 B 层均较母岩之酸度为高。 (2)土壤有机质:从土壤有机质分析结果观之,显示植物种类对于土壤有机质之含量高低,有密切的关系,在拔海8500尺之地带,发育于森林下的灰棕壤,表土含有机质38.92%,而同处草类和蕨类植物...

1945年10月中旬,作者留印三月另一周,曾作三次野外调查,计包括印缅边区、恒河平原及喜马拉雅山东南麓等三区,茲先将大吉岭区调查结果,草成此文。调查区域大吉岭位于喜马拉雅山东南麓,在我国西藏边境,全区是山地,海拔自1000到9000尺不等,主为酸性的片麻岩地层,在拔海6500尺地点,年平均气温为56.3℉.,年雨量为122寸。土壤灰壤——灰棕壤组合:在拔海8500尺左右的山顶,灰壤见于草地上,而灰棕壤则发育在森林之下。灰棕壤——灰化黄壤组合:在拔海7000—8000尺地带,森林下仍是灰棕壤,而草地上则为灰化黄壤。灰化黄壤——粗骨土组合:在拔海1000—3000尺地带,片麻岩生成灰化红壤,酸性砂岩生成砾质土。全区土壤特征可归纳如下: (1)土壤 pH 值:全区因土壤母质为酸性片麻岩,各类土壤剖面亦为酸性反应;pH 值约自4.0至5.5。A_1层之 pH 值恒较 B 层为大,而土壤剖面内之 A 层及 B 层均较母岩之酸度为高。 (2)土壤有机质:从土壤有机质分析结果观之,显示植物种类对于土壤有机质之含量高低,有密切的关系,在拔海8500尺之地带,发育于森林下的灰棕壤,表土含有机质38.92%,而同处草类和蕨类植物发育下的灰壤的表土,仅含有机质11.08%,但在相同的植物环境下,拔海高度或局部气候,也是支配土壤有机质含量的重要因素,例如在拔海3000尺地带,长有草类的灰化红壤,仅有极薄之有机质层,该层有机质含量为3.37%,而在拔海8500尺地带,长有草类的灰壤,则有较厚层有机质,其含量为11.08%。 (3)可溶性铝质:全区土壤含有高量可溶性铝,大约自20至160 p.p.m.,其含量与 pH 值高低相关,土壤 pH 值愈酸,可溶性铝含量就愈高。 (4)可溶性钙镁及钾质:全区土壤之可溶性钙,镁及钾等之含量均较低,但就同一土壤剖面而言,富于有机质的 A。或 A_1层的钙镁和钾质,常较 B 层为高,此点显示此等成份是来自植物遗体,亦即指示土壤中有机质与肥力之关系。 (5)全区土壤有效磷含量均甚低。 (6)全区土壤硝酸态氮之含量均极低,并有下淋现象。植物本文所论植物,仅以作者所采集而经各专家鉴定为限,其中以蕨类植物为主。本区的土壤都是酸性反应,所见的植物是以嫌钙性者为主,这些嫌钙性植物与拔海高度的关系很显著,兹将常见的植物种类,叙述如下: (一)主分布于拔海7000—8500尺地带的植物: 蕨类植物 Dennstaedtia scabra(Wall.)Moore Dicranopteris linearis Under. Hicriopteris glauca Under. Hymenophyllum crispatum Wall. Hymenophyllum exsertum Wall. Lindsaya cultrata Sw. Lycopodium clavatum L. Plagiogyria pycniphylla(Kunze)Mett. Pteridium aquilinum Wightianum Trym. Pteris aspericaulis Wall.种子植物 Castanopsis tribuloides A.DC. Lindera pulcherrima Bth. Osbeckia crinata Bth. Rhododendron arboreum Sm. Rhododendron grande Wight Pieris formosana D.Don Vaccinium referesceda HK. Vaccinium Serrasm Wight(二)主分布于1000—3000尺地带的植物: 蕨类植物Adiantum philippense L.Blechnum orientale L.Aglaomorpha coron(?)us copelLycopodium cernuum L.Nephrolepsis cordifolia PresslTectaria spp.Polypodium lucidum Roxb.种子植物Oxysoira paniculata DC.Themedra arundinacea Ridl.

Experiments concerning the translocation of Systox of different concent-rations for the control of cotton aphids by means of water culture, seed treat-ment, soil application and spraying were conducted both in the greenhouseand field. Data are given which show that toxicants may be taken up byseeds, roots or leaves of cotton. A very good control of cotton aphids resultedin using soil application of 0.25% Systox water emulsion (about 2 catties ofBayer's concentrate per mou) for which the moderate toxicity...

Experiments concerning the translocation of Systox of different concent-rations for the control of cotton aphids by means of water culture, seed treat-ment, soil application and spraying were conducted both in the greenhouseand field. Data are given which show that toxicants may be taken up byseeds, roots or leaves of cotton. A very good control of cotton aphids resultedin using soil application of 0.25% Systox water emulsion (about 2 catties ofBayer's concentrate per mou) for which the moderate toxicity is retained atleast for 66 days in greenhouse and 23 days in the field. It is of great signi-ficance in agricultural practice to diminish labor and increase the residualeffect of control measures against the haphazard of aphids year after yearin the cotton belt of North China.

E1059应用于棉花防治棉蚜的试验是分别在温室及田间进行的。无论浸种、水培、灌溉、喷射,它都有内导作用。此即说明棉花的种子、根或叶的组织都可吸收药液。随体液传输全体,使棉蚜产生内毒作用。从药效保持期来看,以药液灌溉最为持久。在温室内0.25%处理可保持66天;在田间(用1:400的稀释液。每亩800斤的用量)可以保持23天,如何使这个初步结果经济有效的应用於生产实践上,还需从多方面作最大的努力。

Using potato tubers of Irish cobbler variety naturally infected with X- and Y-virus, the writer compared the concentrations of X-virus in the young sprouts of different seed pieces longitudinally cut from the same tuber and subjected to various temperatures, light and darkness, normal and dereased oxygen tensions during the period of germination. Comparison of the virus concentrations was made by serological precipitin test and local lesion counts on half-leaves of Gomphrena globosa. Thermostat experiments showed...

Using potato tubers of Irish cobbler variety naturally infected with X- and Y-virus, the writer compared the concentrations of X-virus in the young sprouts of different seed pieces longitudinally cut from the same tuber and subjected to various temperatures, light and darkness, normal and dereased oxygen tensions during the period of germination. Comparison of the virus concentrations was made by serological precipitin test and local lesion counts on half-leaves of Gomphrena globosa. Thermostat experiments showed that tubers germinated under 20℃. gave rise to sprouts containing highest amount of X-virus, with a precipitin titer of generally 1:80 to 1:160, reaching a maximum of 1:320, average half-leaf lesions numbered approximately 30. The virus concentrations under 16℃. and 24℃. were very close, both with precipitin titer about half and lesion number about two third of those under 20℃. There was evidently a further decrease of virus conoentration in the sprouts derived from seed pieces germinated under 28℃. The sprouts germinated under darkness gave a precipitin titer ahnost 4 times higher than those germinated under light. No difference in X-virus concentration has been observed among sprouts aerated with 21%, 10%, 5% oxygen during their germination. There was no detectable change of virus concentration, even when root growth from the sprouts was entirely inhibited under decreased oxygen tension. It is not immediately clear whether the above stated factors affect the multiplication of X-virus in the potato sprouts or the mobilization and translocation of the virus already present in the tuber into tte germinating sprouts.

著者曾以感染着X-和Y-病毒的早熟白品种的馬鈴薯块茎,用血清沉淀反应和在千日紅上接种的方法,研究了块茎发芽期間温度、光和氧气对幼芽內X—病毒浓度的影响。在試驗中均用同一块茎的切块作每种条件变化的处理。在定温箱內所做的发芽温度試驗的結果指出,块茎在20℃中发出的幼芽內X-病毒的浓度最高,沉淀滴度一般在1/80—1/160之間,最高的达到1/320,千日紅上平均半叶斑点数目約为30。16°及24℃中的病毒浓度相近,沉淀滴度約为20℃的1/2,斑点数目达20℃的2/3左右。28℃发出的幼芽內病毒浓度最低,平均沉淀滴度約在1/10—1/20之間,平均半叶斑点数目为11.9。块茎在黑暗和光照下发芽的試驗表示,在光照下发出的幼芽內X-病毒浓度显著低于黑暗下发芽的,其沉淀滴度的比例約为1∶4。当块茎在正常空气以及10%、5%的氧气条件下发芽时,沉淀滴度和接种試驗都未发現幼芽內X-病毒浓度的可测定的差異,而在氧分压低的条件下发的芽由于生长量較少,按整芽計算的病毒总量也相应較低。

 
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