根系分泌物

在此浓度下，根系分泌物中有机组分（如氨基酸、有机酸）和无机组分（K~+、H~+、Ca~（2+）和P）的含量比对照低。

Under this concertration , organic ingredients ( such as amino acid and organic acid ) and inorganic ingredients ( such as K , H + , Ca2 + andP ) in root exudation are lower than the control .

镧对水稻根系分泌物的影响

The Effect of Lanthanum on Root Exudation of Rice

利用~（14）C研究檫树苗根系分泌物

Study on Root Exudates of Sassafras tzumu Seedling Using Carbon 14

CO2浓度升高对水稻根系分泌物的影响&总有机碳、甲酸和乙酸含量变化

Effects of CO 2 elevation on root exudates in rice

根系分泌物低浓度时能促进酶SOD活性。

SOD activity was promoted by root exudates at the low concentration .

Cd胁迫和增强UV-B辐射对大豆根系分泌物的影响

Effect of cadmium and enhanced UV-B radiation on soybean root excretion

土壤DOM中的AIM不是来源于凋落物淋滤液，而是主要来源于土壤腐殖质、根系分泌物等其它物质。

AIM in the DOM of soil originated from microbial decay of humus or root exudates and so on .

高锌胁迫下不同大白菜品种生长、Zn吸收及根系分泌物的研究

Study of Zn Stress on Plant Growth , Zn uptake and Root Exudates in Different Cultivars of Chinese Cabbage

通过高效液相色谱法（HPLC），分离并鉴定了烟草根系分泌物中的酚酸类物质。

Phenolic acids in tobacco root exudates ( TRE ) were isolated and identified by high performance liquid chromatography ( HPLC ) .

在对照土壤溶液的乙醚萃取物中检测到39个化合物，其中有7个化合物与水稻PI根系分泌物中化合物相同。

In the soil solution , 39 compounds were detected , and 7 of them were the same of the root exudates .

此外，化感水稻PI根系分泌物对脲酶、磷酸酶、蔗糖酶的活性具有促进作用，而对过氧化氢酶则呈抑制作用。

Moreover , PI increased the activities of urease , phosphatase and sucrase , but decreased the catalase activity in its rhizosphere .

文章从这一角度出发，论述了根际土壤中根际微生物、根际pH值、根系分泌物、菌根、根际土壤磷酸酶等各种因素对提高土壤磷素利用率的机理。

This paper reviewed the mechanism that the soil rhizosphere microorganism , rhizosphere pH , root exudates , mycorrhizae , and phosphatase in the rhizosphere soil to improve the phosphorus using efficiency .

随着连作大豆根系分泌物浓度增大，对供试植物小麦根活力、SOD总活性表现显著增强。对茎长、茎鲜重、初生根长、根鲜重表现抑制作用。

With the concentration of continuous soybean increased , it showed inhibition both for root vigor , SOD activity and stem length , stem weight , root length , root weight .

不同品种根系分泌物和脱落物组成成分和含量均不同，导致品种间稻田土壤产CH4能力不同。

Root exudates and deposits ' composition and content of varieties are different , resulting in diversity of methane production among fields with different varieties .

根系分泌物是植物对大气CO2浓度升高响应的调节器，它能活化土壤养分元素、调节微生物区系组成，在根际微生态系统中扮演重要角色。

Root exudates are products the plant generates in responding to CO2 enrichment . They can activate soil nutrient elements and regulate composition of the soil microbiota , thus playing an important role in the rhizospheric microecosystem .

根系分泌物作用于磷、钾矿物2h后，活化能力达到最大值，并随温度的提高而逐步增强。

After 2 hr from root secretions acting on phosphorus and potassium mineral , activating ability achieves largest , and strengthen step by step along with raising of temperature .

经HPLC鉴定，黄瓜植株的根系分泌物主要含有草酸和柠檬酸两种有机酸，且铵态氮植株根系分泌物中柠檬酸含量显著高于硝态氮植株。

Two organic acids , oxalic acid and citric acid , were identified from the root exudates of cucumber seedlings by HPLC . Citric acid in root exudates of ammonium grown plants was significantly higher than nitrate grown plants .

通过14C示踪技术研究间作条件下玉米根系分泌物改善花生铁营养的作用。

The related mechanisms of root exudates of maize in improvement iron nutrition of peanut intercropped with maize was investigated by 14C tracer technique .

FOC侵染显著促进了铵态氮植株根系分泌物中柠檬酸含量，而对硝态氮植株无影响。

FOC infection markedly increased the content of citric acid in ammonium grown plants , while had no effect on nitrate grown plants .

相对而言，磷缺乏植株的根系分泌物对Al-P或Fe-P的活化能力都要高于正常供磷处理的植株。

The root exudation of P-deficient plants showed higher ability to mobilize P from Al-P or Fe-P than that of P-sufficient plants .

本文采用GC-MS分析法，鉴定了XAD-4吸附树脂连续收集黄瓜水培液所获得的黄瓜根系分泌物的种类。

In the text , we identify the phytotoxic substances in root exudates of cucumber by GC-MS , the root exudates was collected with Amberlite XAD-4 resin .

结果表明，重迎茬条件下大豆根系分泌物对立枯丝核菌影响最大，而病原菌分泌物对土壤元素的活化顺序为Mn〉Zn〉Cu〉Cd。

The results of studiesshowed : the effect of soybean root system secretion upon Rhizoctonia was the most important , and the order of activity of the fungi secretion on trace elements in soil was : Mn 〉 Zn 〉 Cu 〉 Cd .

NaCl对水稻不同品种发芽和幼苗生长的影响南瓜和嫁接黄瓜根系分泌物对黄瓜发芽率，胚根胚轴的伸长均具有明显的抑制作用，这种抑制效果与浓度呈正相关；

Effect of Germination Capacity and Seeding of Various Rice Cultivar by NaCl Solution Grafted cucumber and squash root exudates have the inhibitory effect of germination of cucumber , elongation of root and hypocotyls , and have the same effect on squash .

籽粒苋根系分泌物处理后的土壤速效钾含量均高于清水对照处理，富K基因型在低K胁迫时的根系分泌物对土壤K的活化作用明显大于一般基因型。

Soil available potassium content after treated by the root exudates of grain amaranth was higher than that treated by pure water . Under low potassium stress , the content of soil available potassium treated by the root exudates of K12 was higher than that treated by those of M9 .

低浓度根系分泌物处理后植株生长势增强，叶片净光合速率和根系呼吸速率提高，叶片可溶性糖、淀粉及蛋白质含量增加，MDA含量降低，而高浓度处理下则表现相反的变化趋势。

Root exudates of low concentration made the growth enhanced ; net photosynthetic rate and root respiration rate increased ; soluble sugar content , starch content and protein content increased ; MDA content decreased , while root exudates of high concentration showed opposite trend . 3 .

试验采用发芽试验、水培试验及室内分析相结合的方法研究了经GC-MS检测出的大豆根系分泌物和根茬腐解液中的几种有机酸对大豆种子萌发及幼苗生长发育的化感效应。

Organic acids from soybean root secretion and liquid of decomposed root and stem were identified by GC-MS , then allelopathy of those organic acids to seed germination and growth of soybean were conducted with germinating test , solution-culture test and chemical analysis .

采用水培植物的方法，对以1,2,4-TCB和pp'-DDT为代表的PCOPs胁迫下黑麦草和大蒜的某些根系分泌物含量变化进行了研究。

Changes of some root exudates of Lolium multiflorum and Glycine max with PCOPs ( 1,2,4-TCB and pp ' - DDT ) stress were studied under hydroponic conditions .

以不同抗性西瓜品种以及水稻（4007）品种为材料，对其根系分泌物中可溶性糖和游离氨基酸的含量和组成进行测定，并研究了氨基酸对FON生长的影响。

Two watermelon cultivars and rice were used to study the contents and components of the soluble sugars and free amino acids in the root exudates and their effects on the growth of FON .

通过砂培和溶液培养试验，研究了水稻利用难溶性磷酸盐（Al-P和Fe-P）的基因型差异及其与根系分泌物活化特性的关系。

A sand culture experiment and a hydroponic culture experiment were conducted to study genotypic variation of rice in utilization of sparingly soluble phosphates ( Al-P and Fe-P ) and its relationship with mobilization characteristic of root exudation .

利用连续根系分泌物收集系统（CRETS）收集到的根系分泌物种类多于浸根法，增加了烃类和胺类化合物。

More compounds were collected by the continuous root exudates trapping system ( CRETS ) than the root soaking method ( RS ) and an increase in the hydrocarbon and amine compounds was observed in the solution prepared by the CRETS .