稀土元素能够促进植物的生长发育,但其作用机制还不清楚.本文以珊瑚轮藻的节间细胞为实验材料,从单细胞水平研究了10 μmd·L-1LaCl3处理对Mg,Ca,Mn,Fe,Cu,Zn和Mo 7种植物必需矿质元素在轮藻细胞壁和细胞内容物中浓度的影响.结果发现,LB3+能够促进Ca,Mn,Zn和Fe的跨膜运输,而对其他3种矿质元素在细胞内的浓度没有显著影响.La3+处理还显著增加了细胞壁中Zn和Mn的水平,但降低了Ca和Mg的水平.其机制可能与La3+和Ca2+在细胞膜外的相互作用有关.
参考文献
| [1] | 郭伯生.稀土农用前景广阔[J].中小企业科技,2006(01):14-15. |
| [2] | Meehan B J;Peverill K I;Buckingham S D .Enhanced Productivity of Crops and Pastures by Application of Rare Earth Elements[R].the Rural Industries Research & Development Corporation,1996. |
| [3] | Jarvan M .Rare earth elements affecting the biological processes and yielding abilities of cultivated crops[J].Journal of Agricultural Science,2006,17:17. |
| [4] | 稀土在农牧养殖业中的应用[OL].http://www.cre.net/xtzs/nongye.htm |
| [5] | He ML;Ranz D;Rambeck WA .Study on the performance enhancing effect of rare earth elements in growing and fattening pigs[J].Journal of Animal Physiology and Animal Nutrition,2001(7/8):263-270. |
| [6] | Hu Z;Richter H;Sparovek G;Schnug E .Physiological and biochemical effects of rare earth elements on plants and their agricultural significance:a review[J].Journal of Plant Nutrition and Soil Science,2004,27:183. |
| [7] | Zeng FL;Shi P;Zhang MF;Deng RW .Effect of lanthanum on ion absorption in cucumber seedling leaves.[J].Biological trace element research,2000(1/3):265-270. |
| [8] | 刘冰,杨丽,周青.稀土La对Cd胁迫下玉米幼苗生长的影响[J].玉米科学,2006(06):90-92. |
| [9] | Bandenbacher F;Fong L E;Thiel G;Wacke M Jasbinsek V Holzer J R Stampfl A Trontaljz Z .Intracellular axial current in Chara corallina reflects the altered kinetics of ions in cytoplasm under the influence of light[J].Biophysical Journal,2005,88:690. |
| [10] | 李新民,方宏勋,郭鹏飞,杨梦苏,黄秋霖,倪嘉缵.La3+和Gd3+对鼠肝癌H-35细胞Ca2+内流的影响[J].科学通报,1999(01):69. |
| [11] | 魏正贵,张惠娟,李辉信,胡锋.稀土元素超积累植物研究进展[J].中国稀土学报,2006(01):1-11. |
| [12] | 张家荣;顾月华 .镧对烟草愈伤组织和油菜幼根钙含量的影响[J].应用生态学报,1999,10(06):739. |
| [13] | Hepler P K;Wayne R O .Calcium and plant development[J].Annual Review of Plant Physiology,1985,36:397. |
| [14] | Jones R G;Lont O R .The function of calcium in plants[J].Botanical Review,1967,33:407. |
| [15] | Ozaki T;Ambe S;Abe T;Francis AJ .Competitive inhibition and selectivity enhancement by Ca in the uptake of inorganic elements (Be, Na, Mg, K, Ca, Sc, Mn, Co, Zn, Se, Rb, Sr, Y, Zr, Ce, Pm, Gd, Hf) by carrot (Daucus carota cv. U.S. harumakigosun).[J].Biological trace element research,2005(1):69-82. |
| [16] | Leonard R T;Nagabashi G;Thomson W W .Effect of lanthanum on ion absorption in corn roots[J].Plant Physiology,1975,55:542. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%