ORBICULE WALL SURFACE CHARACTERISTICS IN LILIUM (LILIACEAE) - AN ULTRASTRUCTURAL AND CYTOCHEMICAL APPROACH

被引:24
作者
CLEMENT, C
AUDRAN, JC
机构
[1] Laboratoire de Biologie, Physiologic Végélales de I’UR4R, U. F. R. Sciences, Reims Cedex, 51062
关键词
D O I
10.1080/00173139309428963
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In Lilium cv. enchantment, an orbicule peripheral sheet is characterized. It is 10 nm thick and surrounds the whole Ubisch body. Ultrastructural and cytochemical observations allow us to! propose that the orbicule peripheral sheet represents remnants of a glycocalyx supported by the membrane limiting orbicule core on which sporopollenin is synthesized. A model of orbicule sporopollenin architecture and biosynthesis is discussed.
引用
收藏
页码:348 / 353
页数:6
相关论文
共 37 条
[21]  
Rowley J.R., The fundamental structure of pollen exine, PI. Syst. Evol., pp. 13-29, (1990)
[22]  
Rowley J.R., Claugher D., Reccptor-independant sporopollenin, Bot. Acta, 104, pp. 316-323, (1991)
[23]  
Rowley J.R., Dunbar A., Outward extension of spinules in exine of Centrolepis arislata (Centrolepidaceae), Acta Bot., 103, pp. 355-359, (1990)
[24]  
Rowley J.R., Orville Dahl A., Sengupta S., Rowley J.S., A model of exine substructure based on dissection of pollen and spore exines, Palynology, 5, pp. 107-152, (1981)
[25]  
Rowley J.R., Skvarla J.J., Plasma membrane-glycocalyx origin of Ubisch body wall, Pollen Spores, 16, pp. 441-448, (1974)
[26]  
Schulze-Osthoff K., Wiermann R., Phenols as integrated compounds of sporopollenin from Pinus pollen, J. Plant Physiol., 131, pp. 5-15, (1987)
[27]  
Southworth D., Pollen exine substructure. I. Lilium longiflorum, Am. J. Bot., 72, pp. 1274-1283, (1985)
[28]  
Southworth D., Substructural organization of pollen exines, Pollen and spores:Form and function, pp. 61-70, (1966)
[29]  
Southworth D., Exine biochemistry, Microspores:Evolution and ontogeny, pp. 193-212, (1990)
[30]  
Takahashi M., Exine initiation and substructure in pollen of Caesalpina japonica (Leguminosae:Caesalpinioidae), Am. J. Bot., 80, pp. 192-197, (1993)