共查询到20条相似文献，搜索用时 281 毫秒
1.
光合作用相关的核基因(photosynthesis-associated nuclear genes,PhANGs)可以响应包括光照、干旱、糖以及脱落酸(abscisic acid,ABA)等多种环境信号,目前己发现并报道了多种PhANGs启动子上关于光调控的顺式作用元件,但是关于干旱以及ABA等响应元件仍然缺乏系统性研究.本研究主要对核酮糖-1,5-二磷酸羧化酶小亚基基因(ribulose-1,5-bisphosphate carboxylase/oxygenase small subunit,RBCS)启动子区域响应逆境胁迫的顺式作用元件进行分析.首先从中国春小麦(Triticum aestivum)基因组中分离得到TaRBCS11基因上游1 839 bp的核苷酸序列,对该启动子进行结构分析的结果表明,转录起始位点位于起始密码子上游59 bp;经PlantCARE数据库分析,发现该启动子序列上除大量保守光调控元件外(如Box Ⅰ、G-Box、I-box和GATA-motif等),还包含多种应答干旱、盐及激素等逆境因子的保守顺式作用元件(如MYB结合位点(MYB binding site,MBS)、CCAAT-box、乙烯响应元件(ethylene-responsive element,ERE)和赤霉素应答元件(gibberellin-responsive element,GARE-motif)等);从小麦基因组数据库分离得到TaRBCS11、TaRBCS13、TaRBCS10和TaRBCS14启动子序列,序列比对显示,其具有极高的同源性,同时还发现多个保守光调控元件(如MNF1、GATA-motif、I-box、G-Box和Spl)位于这4段启动子近侧区(-200bp～ATG);根据TaRBCS11启动子结构特征及调控元件分布情况,设计5条上游引物及1条下游引物用于启动子缺失片段扩增,长度分别为1 656、1 258、866、533和277 bp;随后对该启动子5’端进行缺失并构建了5个不同长度片段融合报告基因β-葡萄糖醛酸酶基因(β-glucuronidase,GUS)的缺失表达载体,利用农杆菌(Agrobacterium tumefaciens)介导的烟草(Nicotiana tabacum)叶片瞬时表达体系研究酶活变化情况.组织化学染色与酶活分析表明,光能明显提高GUS酶活,进一步分析表明,随启动子片段的缩短,启动子片段上光调控元件缺失,启动子活性依次下降;此外,对不同启动子缺失材料进行干旱、高盐、ABA、黑暗及恢复光照处理,发现干旱、高盐、ABA和黑暗均对全长启动子(P1656)有显著的抑制作用,-804～-474 bp的区域对该段启动子响应干旱及高盐胁迫具有重要作用,而参与ABA响应的核心调控区域位于-1 597～-1 198bp.本研究验证了TaRBCS11基因的表达受干旱、高盐、ABA和光调控影响,并鉴定出其启动子上参与响应非生物胁迫的重要调控区域,研究结果为今后深入研究PhANGs表达调控机制提供了重要参考. 相似文献
2.
YSK2型脱水素(dehydrins,DHNs)是植物中存在最多的DHNs形式,参与植物响应各种非生物逆境胁迫.为了研究YSK2型DHN的功能,从小麦(Triticum aestivum)中克隆了WDHN1基因(GenBank No.KR709259),该基因编码区序列总长491 bp,含两个外显子和一个内含子,编码133个氨基酸;存在4个保守区域,即1个Y片段、1个S片段和2个K片段,与节节麦(Aegilops tauschii) DHN (EMT30992)亲缘关系最近.通过PCR扩增得到WDHN1启动子序列,该启动子存在2个脱落酸应答元件(abscisic acid (ABA)response element,ABRE)和3个MBS(MYB binding site)生物胁迫响应元件.通过qRT-PCR分析其非生物胁迫下的表达模式,结果表明,在低温、NaC1、ABA和PEG 6000胁迫下,小麦WDHN1基因表达均表现为先上升后下降的趋势,分别于6、60、12和48 h时表达量最高.组织特异性表达分析表明,WDHN1基因在小麦开花后22 d的胚芽中表达量最高,具有明显的组织特异性.将WDHN1基因片段连接于原核表达载体pET28a中,转化大肠杆菌(Escherichia coli) BL21(DE3),用异丙基硫代半乳糖苷(isopropyl β-D-1-thiogalactopyranoside,IPTG)诱导表达,获得20 kD的WDHN1蛋白.对重组大肠杆菌WDHNl-pET28a-BL21(DE3)及其总蛋白进行非生物胁迫,结果表明,WDHNl蛋白还可以阻止蛋白聚合引起的蛋白变性,提高非生物胁迫下大肠杆菌的耐受性及乳酸脱氢酶(lactic dehydrogenase,LDH)的稳定性.研究结果为进一步利用该基因进行小麦抗性改良提供了理论依据. 相似文献
3.
从番茄基因组中克隆LeNCED1基因5'-侧翼1456 bp调控序列,经生物信息学分析表明,LeNCED1基因上游调控序列中存在响应昼夜节律的顺式作用元件Circadian、光响应元件BoxⅠ、逆境胁迫响应元件(TC-rich repeats)、ABA响应元件ABRE等,构建了LeNCED1基因上游调控序列与报告基因GUS融合的植物双元表达载体pLeNCED1p:GUS. 相似文献
4.
从番茄基因组中克隆LeNCED1基因5′-侧翼1456 bp调控序列,经生物信息学分析表明,LeNCED1基因上游调控序列中存在响应昼夜节律的顺式作用元件Circadian、光响应元件Box I、逆境胁迫响应元件(TC-rich repeats)、ABA响应元件ABRE等,构建了LeNCED1基因上游调控序列与报告基因GUS融合的植物双元表达载体pLeNCED1p:GUS。 相似文献
5.
玉米乙烯应答元件结合蛋白基因启动子克隆与功能验证 总被引：1，自引：1，他引：0
为了给玉米转基因研究提供更多的非生物逆境诱导启动子,寻找只在逆境胁迫条件下适当驱动外源抗逆基因的表达,在生物信息学分析的基础上,克隆与水稻DREB1B转录因子基因同源的玉米乙烯应答元件结合蛋白基因sb CBF6的启动子psb CBF6,在非生物逆境应答元件分析和实时定量PCR验证其非生物逆境胁迫响应特性后,用以构建驱动报告基因GUS的表达载体,并使用基因枪法转化玉米愈伤组织,通过愈伤组织的GUS荧光值与荧光素酶发光值的比值,评价psb CBF6启动子在非生物逆境胁迫及激素诱导条件下的驱动活性。结果表明,sb CBF6基因在各种非生物逆境胁迫下差异表达。psb CBF6启动子长1 479 bp,存在多种与非生物逆境胁迫应答相关的调控元件,可在非生物胁迫条件下驱动外源抗逆基因在转基因植物中诱导表达。试验结果为研究抗逆转基因玉米提了供参考。 相似文献
6.
3-磷酸-甘油醛脱氢酶(glyceraldehyde-3-phosphate dehydrogenase,GAPDH)广泛地存在于各种生物体内,是生物体内糖异生和糖酵解过程中的关键酶。为了获取长武134小麦(TriticumaestivumL.)GAPDH上游序列并分析其启动子活性,本研究根据小麦GAPDH基因(GenBank登录号:EF592180.1)5'端序列设计特异引物,利用基因组步移法获得了该基因上游1071bp的序列;对该序列进行结构分析表明,转录起始位点可能位于起始密码子上游约700bp处;PlantCARE预测瞬时作用元件表明,在翻译起始密码子ATG的上游含有启动子基本结构元件TATA-box、CAAT框,以及能够应答脱落酸(abscisic acid,ABA)、干旱、低温等非生物胁迫逆境因子的多种顺式作用元件(如MYB、MYC、WRKY、ABRE、HSE和GT-1等);然后用GAPDH基因启动子序列替换植物表达载体pBI121GUS基因前的CaMV35S启动子,并构建启动子融合表达载体,并通过农杆菌(Agrobacteriumtumefaciens)EHA105介导转化烟草(Nicotianatabacum)叶盘进行了瞬时表达分析,以GUS作为报告基因研究在ABA、干旱、低温3种非生物胁迫下启动子的活性。结果显示,ABA、低温和干旱对启动子有较明显的诱导效应,其中以干旱诱导最为显著。本研究通过基因组步移克隆得到GAPDH基因的启动子,分析表明此启动子为有着强启动活性的诱导型启动子。 相似文献
7.
生长素响应因子(ARF)在植物中可以特异性结合在应答基因的启动子区域,调控植物的生长发育。为了进一步了解玉米ARF基因家族的数量、基本特征、进化关系及响应非生物胁迫和激素的表达模式,本研究在全基因组水平,通过生物信息学方法鉴定玉米ARF基因家族,分析了蛋白理化性质及系统发育,利用实时荧光定量PCR(RT-qPCR)分析了4个ZmARFs基因的时空表达模式及高温、干旱、盐和脱落酸(ABA)处理下的表达情况。结果表明,玉米36个ARFs基因随机非均匀分布在9条染色体上,编码氨基酸长度、分子量、等电点及二级结构存在很大的差异。高粱、水稻、拟南芥和玉米的蛋白复合进化树显示共分为Ⅰ~Ⅳ四大类,玉米与高粱ARF蛋白亲缘关系最近,而与拟南芥ARF蛋白亲缘关系最远,且玉米中发生基因内和基因间复制现象。启动子顺式作用元件主要是干旱、低温、氧化和激素类响应元件。RT-qPCR结果显示,ZmARF1、ZmARF6、ZmARF13和ZmARF22基因均在雄穗分支和胚中表达量较高,在花粉中表达量较低;4个基因(除ZmARF22)在高温、干旱、盐和ABA诱导时均显著上调表达。亚细胞定位表明上述4个基因编码的蛋白质均定位于细胞核。本研究结果为揭示玉米ARF蛋白功能和挖掘玉米的抗逆基因提供了理论基础,为抗逆育种提供了分子资源。 相似文献
9.
脱水素(dehydrins,DHNs)是植物胚胎发育后期丰富蛋白(late embriogenesis abundant protein,LEA)中的一类,与低温、干旱以及盐胁迫等多种逆境反应相关.本研究采用cDNA末端快速扩增(rapidamplification of cDNA ends,RACE)技术从茶树(Camellia sinensis)中获得一种茶树脱水素基因CsDHN (GenBank登录号:FJ436978),序列分析显示,该基因cDNA全长960 bp,编码201个氨基酸,推测编码蛋白质分子量约为21kD,等电点为8.3,属于Y3SK2型脱水素.CsDHN基因有2个外显子和1个内含子.生物信息学预测显示,该脱水素蛋白亲水性强、无信号肽和跨膜区,亚细胞定位于细胞质中.表达特性分析表明,CsDHN在逆境及脱落酸(abscisic acid,ABA)诱导下可上调其转录水平,4℃低温处理下表达量可提高4.2倍,而脱水处理能提高93.4倍,高盐处理能提高17.8倍,CsDHN对脱水、高盐胁迫的响应程度优于低温胁迫.CsDHN在茶树各组织器官中都有表达,其中种子中表达量最高,为叶片的11.2倍.研究表明脱水素基因CsDHN可能在茶树防御非生物逆境胁迫和参与茶树种子成熟脱水的活力保护过程起一定作用,为了解茶树抗逆分子机制提供了一定的理论基础. 相似文献
10.
脱水反应元件结合蛋白(DREBs)在植物非生物逆境胁迫中可调节下游一系列抗逆基因的表达。为探究巴哈雀稗DREB2基因在逆境胁迫下的功能,本研究采用RNA-Seq结合RT-PCR技术从巴哈雀稗中获得一个DREB2基因CDS区全序列,命名为PnDREB2(GenBank登录号:MH150946)。核苷酸序列分析表明,该基因开放阅读框全长774 bp,编码257个氨基酸,相对分子质量为28.09 kD,理论等电点为5.25;该植物蛋白中具有DREB类基因家族典型的保守域AP2结构域,属于DREB2类转录因子A类中A2亚类的亚型1。进化和聚类分析结果表明,巴哈雀稗PnDREB2基因与高粱、割手密、玉米、谷子及牛鞭草亲缘关系较近,氨基酸序列同源性分别为91.10%、89.50%、88.20%、87.60%和87.60%。RT-qPCR和生物信息学分析表明,PnDREB2基因在茎中表达量最高,幼穗次之,叶最低;表达产物定位于细胞质中,具有26个磷酸化位点,并具有结构和功能的特异性。PnDREB2表达量受干旱(PEG-6000,20%)和高温(40℃)的强烈诱导,同时也受到高盐(NaCl,300 mmol·L-1)、低温(4℃)、脱落酸(ABA,100 μmol·L-1)和赤霉素(GA,100 μmol·L-1)等非生物胁迫和激素的不同程度诱导,随着处理时间的延长,整体上均呈先增加后降低的趋势。本试验为巴哈雀稗抗逆分子机理研究与抗性增强的转基因材料培育奠定了理论基础。 相似文献
11.
低氮和干旱胁迫对富士和秦冠生长及氮素利用的影响 总被引：2，自引：2，他引：0
【目的】以富士（Fuji）、 秦冠（Qinguan）嫁接在平邑甜茶（Malus hupehensis Rehd.）上的当年生盆栽苗为试验材料,采用砂培方法,研究了缺氮胁迫和干旱对富士和秦冠生长情况、 光合参数、 植株各部位氮磷钾含量及氮素利用效率的影响,分析比较了低氮干旱条件下富士和秦冠生长及氮素利用的差异,以期为果树生产高效肥水利用提供理论指导。【方法】试验共设四个处理: 正常氮正常水（ZZ）、 低氮正常水（DZ）、 正常氮干旱（ZG）、 低氮干旱（DG）。氮素和水分均设置两个水平,分别为正常氮（6 mmol/L NO-3-N）、 低氮（0.3 mmol/LNO-3-N）、 正常供水（保持盆中砂子相对含水量为饱和含水量的80%~85%）、 干旱处理（保持盆中砂子相对含水量为饱和含水量的60%~65%）。【结果】富士和秦冠的生物量（茎和叶）、 株高茎粗等生长指标以及光合速率、 气孔导度、 蒸腾速率均为正常氮正常水（ZZ）＞低氮正常水（DZ）＞正常氮干旱（ZG）＞低氮干旱（DG）,并且相对应处理下秦冠的以上指标均高于富士;正常供水下,缺氮处理使富士、 秦冠的根冠比比正常氮处理均有所增加,富士提高了2.05%,秦冠提高了22.40%。富士和秦冠的氮、 磷、 钾含量均表现出正常氮正常水（ZZ）＞低氮正常水（DZ）＞正常氮干旱（ZG）＞低氮干旱（DG）; 氮、 钾元素含量在植株各部位的分布顺序依次是叶＞根＞茎,磷元素则是根＞叶＞茎;光合氮素利用效率（PNUE）和氮素利用效率表现为秦冠处理之间差异极显著,富士处理之间差异不显著;秦冠的PNUE和NUE明显高于富士,在低氮正常水（DZ）处理下,秦冠氮肥利用率比富士高42.07%,在低氮干旱（DG）处理下高64.14%;低氮胁迫下富士和秦冠的NUE显著提高,并且秦冠提高的幅度高于富士。【结论】施用氮肥能够显著提高富士与秦冠的干物质量,同等水肥条件下,秦冠生长优于富士;水分亏缺会减少叶片对氮的吸收,干旱条件下适度增施氮肥,可提高果树的抗旱能力;低氮干旱胁迫下秦冠的生长指标、 光合指标及氮素利用效率指标均优于富士,表现出较强的抗低氮干旱胁迫的能力。 相似文献
12.
Aleš Lebeda Ivana Doležalová Eva Křístková Barbora Mieslerová 《Genetic Resources and Crop Evolution》2001,48(2):153-164
Staff members of the Department of Botany of Palacký University in Olomouc and Gene Bank Department – Workplace Olomouc, Research Institute of Crop Production in Prague, Czech Republic, conducted an expedition in seven European countries (Austria, Czech Republic, France, Germany, Italy, the Netherlands, Switzerland) in August/September 1999 to collect wild Lactuca spp. germplasm and study its geographic distribution, ecology and biodiversity. During the mission, more than 600 locations were visited resulting in the collection of 602 seed samples (accessions) of wild Lactuca species and 13 seed samples of related genera (Chondrilla and Mycelis). Lactuca serriola f. serriola, L. serriola f. integrifolia, L. saligna and L. viminea subsp. chondrilliflora were prevalent in southern Europe (Italy, France), however, only L. serriola was common in central and western Europe (Austria, Czech Republic, Germany, Netherlands, Switzerland). The greatest diversity of Lactuca species was found in France, where also the most seed samples (165) were collected. The most characteristic habitats with a high density of Lactuca spp. populations were observed along roads and highways, grassy ditches, ruderal communities, and dust-heaps. Natural infections by powdery mildew (Erysiphe cichoracearum) and downy mildew (Bremia lactucae) on some wild Lactuca spp. were observed. Recent observations concerning the geographic distribution, population structure, habitats, and natural occurrence of diseases of Lactuca spp. are discussed. This assemblage of genetic resources of Lactuca spp. can serve as the basis of future studies of species diversification, spatial population structure, plant microevolution, domestication processes, and genetic variability of host-parasite interactions. 相似文献
13.
Kyle Devey Michael Mucalo Gordon Rajendram Joseph Lane 《Communications in Soil Science and Plant Analysis》2015,46(4):72-80
Laser-induced breakdown spectroscopy (LIBS) is a new technique for the analysis of plant material. This study investigates the application of LIBS to pasture-based plant samples. The LIBS measurements were obtained from pelletized pasture samples (100 samples) that had been also analyzed by inductively coupled plasma–optical emission spectroscopy (ICP-OES) following microwave digestion for calibration and comparison purposes. Comparisons for elements sodium (Na), potassium (K), magnesium (Mg), calcium (Ca), manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), boron (B), phosphorus (P), and sulfur (S) showed that LIBS could be used for almost all the standard profile total elements with concentrations down to low mg/kg levels (observed error of Na: 0.024 percent, K: 0.18 percent, Mg: 0.016 percent, Ca: 0.073 percent, P: 0.017 percent, Mn: 31 mg/kg, Fe: 150 mg/kg, Zn: 6.6 mg/kg, and B: 1.1 mg/kg). Elemental analysis at less than mg/kg levels was not possible using LIBS. The elements S and Cu were particularly difficult to analyze with reliability using LIBS at the concentration levels found in the plant samples. Replacing microwave digestion and subsequent ICP analysis with a direct analysis of dried plant samples using LIBS has the potential to improve the productivity and reduce the cost of testing. 相似文献
14.
Thomas Larsen Jesper Luxhøi Jakob Magid Lars Stoumann Jensen Paul Henning Krogh 《Biology and Fertility of Soils》2007,44(1):59-68
We have studied the effect of anaerobically digested (ADMSW) and composted municipal solid waste (CMSW) on mineralization
and foodweb dynamics to verify the hypothesis that ADMSW would immobilize N right after addition to soil in contrast to addition
with CMSW. Another hypothesis was that the mesofauna (enchytraeids and microarthropods) would stimulate N release from the
decomposer community. We measured excretion of -N and urea-N from the mesofauna and hypothesized that enchytraeids would release urea. ADMSW and CMSW were amended to pots
with sandy loam and barley. The pots were divided into treatments with or without mesofauna. Mesofauna, plant N and biomass,
soil N and ergosterol (fungal biomass) were measured over a 113-day period of four equidistant samplings. Soil respiration,
N mineralization and N release by the mesofauna were modelled from concurrent studies. ADMSW- and CMSW-treated soils initially
(<20 days) immobilized N. The amendments did not increase plant growth substantially, and this was probably due to N-limitation
in the early stages of plant growth. Enchytraeid abundance was about three times higher in ADMSW- than CMSW-treated soils,
indicating that ADMSW contained more labile compounds, bacteria, and microfauna. The mesofauna did not affect N-content, but
the cumulated -N excreted by the mesofauna was estimated to be substantial and about one-fifth of total plant N in ADMSW. An explanation
for this discrepancy might be that in the absence of the mesofauna, other members of the detrivore and microbivore community
performed the mesofauna’s function. Neither enchytraeids nor microarthropods excreted urea. 相似文献
15.
《中国生态农业学报》2014,(6)
正The Center for Agricultural Resources Research(CARR),the Institute of Genetics and Developmental Biology(IGDB),Chinese Academy of Sciences,invites applicants for several research group leader positions.CARR is one of the research organizations in Chinese Academy of Sciences(CAS).We seek nominations and applications from individuals who have expertise and a record of accomplishment in research areas related to ecology,agro-hydrology, 相似文献
16.
《中国生态农业学报》2014,(7)
正The Center for Agricultural Resources Research(CARR),the Institute of Genetics and Developmental Biology(IGDB),Chinese Academy of Sciences,invites applicants for several research group leader positions.CARR is one of the research organizations in Chinese Academy of Sciences(CAS).We seek nominations and applications from individuals who have expertise and a record of accomplishment in research areas related to ecology,agro-hydrology, 相似文献
17.
《中国生态农业学报》2014,(8)
正The Center for Agricultural Resources Research(CARR),the Institute of Genetics and Developmental Biology(IGDB),Chinese Academy of Sciences,invites applicants for several research group leader positions.CARR is one of the research organizations in Chinese Academy of Sciences(CAS).We seek nominations and applications from individuals who have expertise and a record of accomplishment in research areas related to ecology,agro-hydrology, 相似文献
18.
I.L. Boyd 《Biological conservation》2010,143(7):1664-1674
“Wicked” problems are those that are complex and that change when solutions are applied. Many conflicts in conservation fall into this category. The study approached the problem of how to constrain the apparent wickedness of a problem in the conservation management of a species by using simple empirical indicators to carry out iterative assessment of the risk to a population and to document how this risk evolves in relation to the addition of new data and the implementation of management actions. Effects of high levels of uncertainty within data and also concerning population structure were examined through stochastic simulation and by exploration of scenarios. Historical trends in the example used, the Steller sea lion, showed rapid declines in abundance in some regions during the 1980s. The current total population is 130,000-150,000 Steller sea lions through Alaska and British Columbia and this number has been stable since about 1990 in spite of regional differences in population dynamics. Regional differences in the sequence of changes in the number of pups and non-pups, suggested that an internal re-distribution of juveniles could have happened between 1980 and 1990. Current productivity also appears close to the long-term mean. Stochastic population projection using various scenarios showed that, based upon this history, the risk of extinction for the population has declined and is below reasonable thresholds for considering the population to be endangered. The trends in risk suggest that management actions taken since 1990 have probably been effective. Consequently, the conservation management objectives for the Steller sea lion are probably being met. The approach provides a mechanism, based upon experience and scenario analysis, for exploring future policy options and may help to constrain the debate amongst stakeholders about the cost-benefit trade-offs associated with different options. 相似文献
19.
Soil-profile distribution of primary and secondary plant-available nutrients under conventional and no tillage 总被引：1，自引：0，他引：1
Nutrient distributions under no tillage (NT) compared with conventional disk-and-bed tillage (CT) management in the warm, humid region of the southeastern USA need to be assessed so that future placement, quantity, and type of fertilizers can be altered, if necessary, to efficiently match crop demands. We determined soil-profile distributions of pH, N, P, S, K, Ca, Mg, Na, Zn, Fe, Mn, and Cu to a depth of 0.9 m at the end of 8.5 years of continuous CT and NT management on a Weswood silty clay loam (fine, mixed, thermic Fluventic Ustochrept) in southcentral Texas. Most dramatic changes occurred within the 0–0.05 m depth, where soil under NT had lower pH, Fe, and Cu than under CT, but greater P, K, Zn, and Mn. Greater P and K under NT than under CT also occurred below the till-zone (0.15–0.3 m). At a depth of 0–0.3 m, soil under NT contained greater amounts of extractable P, K, Zn, Fe, Mn, and Cu than under CT. Nitrogen fertilization had little effect on nutrient distributions, except resulting in greater extractable K at 0–0.05 m and greater nitrate at 0–0.15 m. Few changes in soil-profile distributions were observed for extractable S, Ca, Mg, and Na. Long-term continuous use of NT on this fine-textured, high-fertility (except for N) soil had no apparent adverse effects on nutrient distributions relative to CT, but enhanced conservation and availability of P, K, Zn, Fe, Mn, and Cu near the soil surface where crop roots proliferate. 相似文献
20.
M.A. Callaham Jr. J.M. BlairT.C. Todd D.J. KitchenM.R. Whiles 《Soil biology & biochemistry》2003,35(8):1079-1093
The responses of tallgrass prairie plant communities and ecosystem processes to fire and grazing are well characterized. However, responses of invertebrate consumer groups, and particularly soil-dwelling organisms, to these disturbances are not well known. At Konza Prairie Biological Station, we sampled soil macroinvertebrates in 1994 and 1999 as part of a long-term experiment designed to examine the effects and interactions of annual fire, mowing, and fertilization (N and P) on prairie soil communities and processes. For nearly all taxa, in both years, responses were characterized by significant treatment interactions, but some general patterns were evident. Introduced European earthworms (Aporrectodea spp. and Octolasion spp.) were most abundant in plots where fire was excluded, and the proportion of the total earthworm community consisting of introduced earthworms was greater in unburned, unmowed, and fertilized plots. Nymphs of two Cicada genera were collected (Cicadetta spp. and Tibicen spp.). Cicadetta nymphs were more abundant in burned plots, but mowing reduced their abundance. Tibicen nymphs were collected almost exclusively from unburned plots. Treatment effects on herbivorous beetle larvae (Scarabaeidae, Elateridae, and Curculionidae) were variable, but nutrient additions (N or P) usually resulted in greater densities, whereas mowing usually resulted in lower densities. Our results suggest that departures from historical disturbance regimes (i.e. frequent fire and grazing) may render soils more susceptible to increased numbers of European earthworms, and that interactions between fire, aboveground biomass removal, and vegetation responses affect the structure and composition of invertebrate communities in tallgrass prairie soils. 相似文献