|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | UV-B has larger negative impacts on invasive populations of Triadica sebifera but ozone impacts do not vary显示文摘Aims Abiotic stresses may interact with each other to determine impacts on plants so that their combined impact is less than or more than additive.Increasing UV-B radiation and surface ozone(O3)are two major components of global change that may have such interactive impacts.Moreover,invasive and native populations of plants may respond differently to stresses as they can vary in primary and secondary metabolism.Methods Here,we conducted a factorial field experiment with open-top chambers assigned to an ozone treatment(ambient,100 ppb,or 150 ppb)and UV-B treatment(ambient or increased 20%).We grew seedlings of native and invasive populations of Triadica sebifera in these chambers for one growing season.Important Findings Invasive plants grew faster than native plants in ambient UV-B but they did not differ significantly in elevated UV-B.Litter production of invasive plants was especially sensitive to UV-B in a way that increased with UV-B for native plants but decreased for invasive plants which may be important for nutrient cycling.In ambient UV-B,total mass decreased as ozone increased.Total mass was lower with elevated UV-B but there was no additional impact of increasing ozone.Leaf area did not decrease with UV-B so SLA and LAR were lowest at ambient ozone levels.These results suggest that the effects of ozone will depend on UV-B conditions perhaps due to changes in foliar traits.The traits that allow invasive populations of plants to be successful invaders may make them especially sensitive to UV-B which may reduce their success in future climatic conditions. | Hong Wang Xiaochi Ma Ling Zhang Evan Siemann Jianwen Zou | 2016 | Journal of Plant Ecology2016，9，1： | 3 |
| 2 | Soil Respiration and Litter Decomposition Increased Following Perennial Forb Invasion into an Annual Grassland显示文摘Exotic plant invasions may alter ecosystem carbon processes, especially when native plants are displaced by plants of a different functional group. Forb invasions into grasslands are common, yet little is known about how they impact carbon cycling. We conducted a field study over 2 years from April 2010 to March 2012 in China to examine changes in soil respiration(R_(soil)) following invasion of exotic perennial forb species(Alternanthera philoxeroides or Solidago canadensis) into an annual grassland dominated by a native annual graminoid(Eragrostis pilosa). Measurements of R_(soil)were taken once a week in stands of the native annual graminoid or one of the forb species using static chamber-gas chromatograph method. Aboveground litterfall of each of the three focal species was collected biweekly and litter decomposition rates were measured in a 6-month litterbag experiment. The monthly average and annual cumulative R_(soil)increased following invasion by either forb species. The increases in cumulative R_(soil)were smaller with invasion of Solidago(36%)than Alternanthera(65%). Both invasive forbs were associated with higher litter quantity and quality(e.g., C:N ratio) than the native annual graminoid. Compared to the native annual graminoid, the invasive forbs Alternanthera(155%) and Solidago(361%) produced larger amounts of more rapidly decomposing litter, with the litter decay constant k being 3.8, 2.0 and 1.0 for Alternanthera, Solidago and Eragrostis, respectively. Functional groups of the invasive plants and the native plants they replaced appear to be useful predictors of directions of changes in R_(soil), but the magnitude of changes in R_(soil)seems to be sensitive to variations in invader functional traits. | ZHANG Ling MA Xiaochi WANG Hong LIU Shuwei Evan SIEMANN ZOU Jianwen | 2016 | Pedosphere2016，26，4： | 2 |
| 3 | Genetic variation in anti-herbivore chemical defenses in an invasive plant显示文摘 | Wang Y Siemann E Wheeler G S Zhu L Gu X Ding J | | 0，，： | 1 |
| 4 | Requirement for parp-1 and DNA ligases 1 or 3 but not of xree 1 in chromosomal trans- location formation by backup end joining 显示文摘 | Soni A Siemann M Grabos M | 2014 | Nucleic Acids Res2014，42，10： | 1 |
| 5 | The unique characteristics of tumor vasculature and preclinical evidence for its selective disruption by tumor- vascular disrupting agents 显示文摘 | Siemann DW | 2011 | Cancer Treat Rev2011，37，1： | 1 |
| 6 | Concentration of the phytoalexin resveratrol in wine显示文摘 | Creasy L L | 1992 | Am J Enol Vitic1992，43，1： | 1 |
| 7 | Genetic differences in growth of an invasive tree species显示文摘 | Siemann E Rogers W E | 2001 | Ecology Letters2001，，4： | 1 |
| 8 | Surfactant release as an early measure of radiation pneumonitis显示文摘 | Rubin P Siemann DW Shapiro DL | 1983 | Int J Radiat Oncol Biol Phys1983，9，11： | 1 |
| 9 | Inhibition of renal cell carcinoma angiogenesis and growth by antisense oligonucleotides targeting vascular endothelial growth factor显示文摘 | SHI W SIEMANN D W | 2002 | 87(1):119-1262002，87，1： | 1 |
| 10 | Predictive biochemical assays for late radiation effects显示文摘 | Rubin P Finkelstein JN Siemann DW | 1986 | Int J Radiat Oncol Biol Phys1986，12，4： | 1 |
| 11 | Inhibition of renal cell carcinoma angiogenesis and growth by antisense oligonucleotides targeting vascular endothelial growth factor 显示文摘 | Shi W Siemann DW | 2002 | Br J Cancer2002，87，1： | 1 |
| 12 | The influence of functional diversity and composition on ecosystem processes显示文摘 | Tilman D Knops J Wedin D Reich P Ritchie M Siemann E | | 0，，： | 1 |
| 13 | Concentration of the phytoalexin Res- veratrol in wine显示文摘 | Siemann EH Creasy LL | 1992 | Am J Enol Vitic1992，43，1： | 1 |
| 14 | Interaction between combretastatin A -4 disodium phosphate and radiation in mufine tmnors 显示文摘 | Murata R Siemann DW Overgaard J | 2001 | Radlother Oncol2001，60，： | 1 |
| 15 | Antitumor efficacy of conventional anticancer drugs is enhanced by the vascular targeting agent ZD6126 显示文摘 | Siemann DW Rojiani AM | 2002 | Int J Radiat Oncol Biol Phys2002，54，： | 1 |
| 16 | The vascular disrupting agent ZD6126 shows increased antitumor efficacy and enhanced radiation response in large, advanced tumors 显示文摘 | Siemann DW Rojiani AM | 2005 | Int J Radiat Oneol Biol Phys2005，62，： | 1 |
| 17 | Experimental Tests of the Dependence of Arthropod Diversity on Plant Diversity 显示文摘 | Siemann E Tilman D Haarstad J | 1998 | Ame J Nature1998，152，5： | 1 |
| 18 | Pathophysiologic effects of vascular- targeting agents and the implications for combination with conven- tional therapies 显示文摘 | Horsman MR Siemann DW | 2006 | Cancer Res2006，66，11： | 1 |
| 19 | Impact of tumor cell VEGF expression on the vivo efficacy of vandetanib (ZACTIMA;ZD6474) 显示文摘 | Siemann DW Norris CM Ryan A | 2009 | Anticancer Res2009，29，6： | 1 |
| 20 | Invasive ecotypes tolerate herbivory more effectively than native ecotypes of the Chinese tallow tree Sapium sebiferum显示文摘 | Rogers W Siemann E | 2004 | Journal of Applied Ecology2004，41，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员