A cytokinin-sensitive mutant of the moss,Physcomitrella patens, defective in chloroplast division W. O. AbelW. KnebelB. Spörlein OriginalPaper Pages: 1 - 13
An unusual feature of developing protophloem sieve elements in roots ofTriticum aestivum L. E. P. Eleftheriou OriginalPaper Pages: 14 - 21
Ultrastructure of the vegetative cell ofBrassica napus pollen with particular reference to microbodies Maria CharzynskaMeri MurgiaM. Cresti OriginalPaper Pages: 22 - 28
Ultrastructure of sperm cells and the male germ unit in pollen tubes ofNicotiana tabacum Hong-Shi YuShi-Yi HuCheng Zhu OriginalPaper Pages: 29 - 36
Rise in chlorotetracycline fluorescence accompanies tracheary element differentiation in suspension cultures ofZinnia Alison W. RobertsCandace H. Haigler OriginalPaper Pages: 37 - 45
Lateral diffusion of proteins and lipids in the plasma membrane of rose protoplast R. M. WalkoE. A. Nothnagel OriginalPaper Pages: 46 - 56